The invention relates to a machining device (1) for shaping optical lenses (100) by material removal, having a pre-machining machine (10) and a finishing machine (30). The pre-machining machine (10) has a data output unit (12) which is configured to assign lens-specific geometry data (D) resulting from the pre-machining to the machined optical lens (100) and to output said data. The finishing machine (30) is controlled by a process controller (32) which is configured to design a finishing strategy of the finishing machine (30) on the basis of the output geometry data (D) for this optical lens (100) and to control the finishing machine (30) on the basis of this finishing strategy. The invention also relates to a method for the shaping finishing an optical lens (100).
B24B 9/14 - Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
B24B 13/00 - Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
B24B 51/00 - Arrangements for automatic control of a series of individual steps in grinding a workpiece
B24B 13/06 - Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information carrying means, e.g. patterns, punched tapes, magnetic tapes
G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
B23Q 39/00 - Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
B24B 49/03 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent according to the final size of the previously ground workpiece
The invention relates to a display device comprising a holding device (2), which can be placed onto the head of a user, an image generating module (5) secured to the holding device, and a spectacle lens (3, 4) secured to the holding device (2), said spectacle lens imaging an at least two-colored in such a way that the user can perceive it as a virtual image, wherein the image generating module has – a first image generator (6) for a first color sub-image, – a second image generator (7) for a second color sub-image, and – a combiner (15) comprising a first and a second entrance surface (31, 32) and an exit surface (36), wherein the first color sub-image enters via the first entrance surface (31) and is guided along a first color channel as far as a first reflection layer (34, 35), which reflects one of the two color sub-images and transmits the other of the two color sub-images, (34, 35), wherein the second color sub-image enters via the second entrance surface (32) and is guided along a second color channel as far as the first reflection layer (34, 35), wherein the two color sub-images are superimposed by means of the first reflection layer (34, 35) to form the at least two-colored image, which exits via the exit surface (36) of the combiner (15) and is guided to the spectacle lens (3, 4), wherein the first entrance surface (31) is designed, and/or in the first color channel a first hologram is designed, such that a first imaging function is present for the first color sub-image and this function serves to correct an aberration caused by the spectacle lens (3, 4).
The invention relates to an optical system which has a first optical element, a second optical element and a first adhesive layer. The first adhesive layer is arranged between the first optical element and the second optical element and is configured to connect the first optical element and the second optical element. The first adhesive layer also has a first stiffness gradient which points from an edge of the optical system to a thermal expansion centre of the optical system.
The invention relates to a display device comprising: a holding device (2), which can be placed on the head of a user; a first and a second image-generating module (5, 6), which are fastened to the holding device (2) and generate a first and a second image; and a first and a second spectacle lens (3, 4) fastened to the holding device (2); wherein, in the state in which the holding device (2) is placed on the head, the generated first image is presented to the user via the first spectacle lens (3) in the form of a first virtual image (B1) and the generated second image is presented to the user via the second spectacle lens (4) in the form of a second virtual image (B2); and wherein the first and the second virtual image (B1, B2) are presented to the user such that the images do not together impart a three-dimensional image display.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Optical lenses; correcting lenses [optics]; spectacle lenses; replacement lenses for glasses; optical devices, enhancers and correctors; prisms for optics purposes; 3-D glasses; optical glasses; prescription glasses; smart glasses; virtual, augmented and extended reality glasses and headsets; frames for glasses and spectacles; virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses; audiovisual headsets; information technology and audio-visual, multimedia and photographic devices; testing apparatus for checking optical devices; protective coating for optical lenses; optical apparatus and instruments; optical measurement apparatus; software; computers; hardware; computer peripherals, and wearable electronic devices; bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals and headsets. Wholesale, retail and online retail sales and services regarding optical lenses, correcting lenses [optics], spectacle lenses, replacement lenses for glasses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals, and wearable electronic devices, bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals, and headsets; sales promotion for others; business intermediary services for the sale and purchase of optical lenses, correcting lenses [optics], spectacle lenses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals, and wearable electronic devices, bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals and headsets. Repair and maintenance of optical lenses, correcting lenses [optics], spectacle lenses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals. Custom manufacture of optical, correcting and replacement lenses and spectacles; processing of optical lenses and spectacles to meet individual requirements; manufacturing of lenses of thirds parties; development of customized optics platforms; grinding of optical glass. IT services; Science and technology services; Testing, authentication and quality control; design services; Design and development of optical components, design and development of virtual, augmented and extended reality components and software for optical lenses. Fitting of optical lenses and spectacles; information services relating to optical lenses and spectacles; optical tests; opticians’ services; sight-testing [opticians'] services; opticians' services provided online from a computer network.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Optical lenses; correcting lenses [optics]; spectacle lenses; replacement lenses for glasses; optical devices, enhancers and correctors; prisms for optics purposes; 3-D glasses; optical glasses; prescription glasses; smart glasses; virtual, augmented and extended reality glasses and headsets; frames for glasses and spectacles; virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses; audiovisual headsets; information technology and audio-visual, multimedia and photographic devices; testing apparatus for checking optical devices; protective coating for optical lenses; optical apparatus and instruments; optical measurement apparatus; software; computers; hardware; computer peripherals, and wearable electronic devices; bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals and headsets. Wholesale, retail and online retail sales and services regarding optical lenses, correcting lenses [optics], spectacle lenses, replacement lenses for glasses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals, and wearable electronic devices, bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals, and headsets; sales promotion for others; business intermediary services for the sale and purchase of optical lenses, correcting lenses [optics], spectacle lenses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals, and wearable electronic devices, bags, covers, cases, sleeves, straps, lanyards and holders for computers, computer peripherals and headsets. Repair and maintenance of optical lenses, correcting lenses [optics], spectacle lenses, optical devices, enhancers and correctors, prisms for optics purposes, 3-D glasses, optical glasses, prescription glasses, smart glasses, virtual, augmented and extended reality glasses and headsets, frames for glasses and spectacles, virtual, augmented and extended reality components and software for optical lenses and virtual, augmented and extended reality glasses, audiovisual headsets, information technology and audio-visual, multimedia and photographic devices, testing apparatus for checking optical devices, protective coating for optical lenses, optical apparatus and instruments, optical measurement apparatus, software, computers, hardware, computer peripherals. Custom manufacture of optical, correcting and replacement lenses and spectacles; processing of optical lenses and spectacles to meet individual requirements; manufacturing of lenses of thirds parties; development of customized optics platforms; grinding of optical glass. IT services; Science and technology services; Testing, authentication and quality control; design services; Design and development of optical components, design and development of virtual, augmented and extended reality components and software for optical lenses. Fitting of optical lenses and spectacles; information services relating to optical lenses and spectacles; optical tests; opticians’ services; sight-testing [opticians'] services; opticians' services provided online from a computer network.
7.
BEAM COMBINER, BEAM-COMBINING ASSEMBLY, SPECTACLE LENS, AND SMART GLASSES
The invention relates to a beam combining assembly (100), which has: a beam combiner (1), for combining a plurality of light beams (2, 3, 4) to form a combined light beam (5): and displays (15, 16, 17), which are associated with the entry-side faces (7, 8, 9) and are designed for emitting the light beams (2, 3, 4). The beam combiner (1) comprises a main body (6) having: a plurality of entry-side faces (7, 8, 9), through which light beams (2, 3, 4) enter the main body; and an emittance-side face (10), through which a light beam (5) combined from the entering light beams (2, 3, 4) is emitted from the main body 6; and comprises at least one semi-transparent, reflective element (13, 14) arranged in the main body (6), wherein the entering light beams (2, 3, 4) are combined with one another in the interior of the main body (6) by means of the at least one semi-transparent, reflective element (13, 14). According to the invention, at least one of the displays (15, 16, 17) is arranged eccentrically with respect to the entry-side face (7, 8, 9) associated with this display (15, 16, 17). The invention also relates to a beam combiner (1), an additional beam-combining assembly (100), a spectacle lens (200) and smart glasses (300).
In a spectacle lens of a display device the coupling-in portion has an entry surface which is wider in the first direction than the image of the imager, and it is possible to adjust the entry surface coupling-in position at which the image is coupled in via the entry surface in the first direction. The coupling-in position determines the coupling-out direction of the coupling-out portion of the spectacle lens, and therefore the position of the exit pupil in the first direction such that the distance between the exit pupil and the coupling-in portion in the first direction can be adjusted. Irrespective of the coupling-in position, when the deflecting structure causes a deflection, the deflecting structure is always utilized across the entire predetermined extension in the first direction.
A measurement system for measuring a position of an eyebox of a virtual image of a pair of spectacles that can be worn on the head of a user can include a holding device for holding the spectacles at a predefined position, and a projection area element, onto which light beams that generate a virtual image can be projected via the first spectacle lens when the spectacles are held by the holding device. The projection area element is arranged at such a position in relation to the first spectacle lens that when the spectacles are held by the holding device, the position of the projection area element at least partially corresponds to the position of a pupil of the user when the user wears the spectacles on the head.
A spectacle lens for a display device which can be placed on the head of a user and generate an image has a front and a rear, an injection section and a deflection section spaced from the injection section, an exit section in the rear and a light-guiding channel which guides light beams of pixels of the generated image, which are injected into the spectacle lens via the injection section, in the spectacle lens to the deflection section, by which they are deflected towards the exit section and then coupled out of the spectacle lens through the exit section. The spectacle lens is in the form of a progressive lens having a distance vision region and a near vision region, and the exit section, as viewed from above onto the rear of the spectacle lens, lies outside the distance vision region and outside the near vision region.
SPECTACLE LENS FOR A DISPLAY DEVICE WHICH CAN BE PLACED ON THE HEAD OF A USER AND WHICH GENERATES AN IMAGE, AND DISPLAY DEVICE COMPRISING SUCH A SPECTACLE LENS
The invention relates to a spectacle lens for a display device (1) that can be placed on the head of a user and generates an image, wherein the spectacle lens (3) has a front face (11) and a rear face (9), an entry portion (10) and a deflection portion (12) spaced apart from the entry portion (10), an exit portion (19) in the rear face (9), and a light guide channel (18) which by way of at least one reflection guides light beams (L1) of the generated image, which are coupled into the spectacle lens (3) via the entry portion (10) of the spectacle lens (3), in the spectacle lens (3) all the way to the deflection portion (12), from which said light beams are deflected towards the exit portion (19) and then coupled out of the spectacle lens (3) through the exit portion (19), wherein the spectacle lens (3) has a multi-layered structure, and has a first layer (15), a second layer (17) and a third layer (16), wherein the second layer (17) is arranged between the first and third layers (15, 16) and is connected to the first and third layers (15, 16), wherein the second layer (17) has a first interface (20) facing the first layer (15) and a second interface (21) facing the third layer (16), wherein the second layer (17) has at least one first spacer (221, 222), which protrudes with respect to the first interface (20) and defines the spacing between the second and first layers (15, 17), and at least one second spacer (251, 252, 253, 254), which protrudes with respect to the second interface (21) and defines the spacing between the second and third layers (17, 16).
SPECTACLE LENS FOR A DISPLAY DEVICE WHICH CAN BE PLACED ON THE HEAD OF A USER AND WHICH GENERATES AN AT LEAST TWO-COLOUR IMAGE, AND DISPLAY DEVICE COMPRISING SAID TYPE OF SPECTACLE LENS
The invention relates to a spectacle lens for a display device (1) which can be placed on the head of a user and generates an at least two-colour image. The spectacle lens (3) has a front (20) and a rear (18), an entry section (19) and a deflection section (21) arranged at a distance from the entry section (19), an exit section (26) in the rear (18) and a light-guiding channel (29) which guides light beams (L1, L2, L3) of the at least two colours of the generated image, which are coupled into the spectacle lens (3) via the entry section (19) of the spectacle lens (3), in the spectacle lens (3) up to the deflection section (21), by which they are deflected towards the exit section (26) and then decoupled from the spectacle lens (3) by the exit section (26). The deflection section (21) has at least one reflective deflection element (23) which has different reflectivities for the light beams of the at least two colours.
SPECTACLE LENS FOR A DISPLAY DEVICE WHICH CAN BE PLACED ON THE HEAD OF A USER AND WHICH GENERATES AN AT LEAST TWO-COLOUR IMAGE, AND DISPLAY DEVICE COMPRISING SAID TYPE OF SPECTACLE LENS
The invention relates to a spectacle lens for a display device (1) which can be placed on the head of a user and generates an at least two-colour image. The spectacle lens (3) has a front (20) and a rear (18), an entry section (19) and a deflection section (21) which is arranged at a distance from the entry section (19), an exit section (26) in the rear (18) and a light-guiding channel (29) which guides light beams (L1, L2, L3) of the at least two-colour generated image, which are coupled into the spectacle lens (3) via the entry section (19) of the spectacle lens (3), in the spectacle lens (3) to the deflection section (21), by means of which they are deflected towards the exit section (26) and then decoupled from the spectacle lens (3) through the exit section (26). The deflection section (21) has a first reflective deflection structure (22) with at least one first reflective deflection element (23) and a second reflective deflection structure (24) with at least one second reflective deflection element (25), wherein the two deflecting structures (22, 24) are arranged one behind the other in a direction from the rear side (18) to the front side (20) and have different reflectivities for the at least two colours.
The invention relates to a smart glasses frame (10) for smart glasses (100). The smart glasses frame (10) has: a glasses frame (11) designed to hold and position an exchangeable glasses lens (50); a display (12), connected to the glasses frame (11), designed to generate a virtual image; and glasses frame guidance elements (13a, 13b) designed to position and orient the display (12) with respect to the glasses lens (50). The invention also relates to a glasses lens (50) for smart glasses (100), smart glasses (100), a part set for obtaining smart glasses and to a method (200) for assembling smart glasses (100).
Various aspects of the disclosure relate to the production of optical components for optical elements used in display devices, such as augmented reality glasses.
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
16.
SPECTACLE LENS FOR A DISPLAY DEVICE WHICH CAN BE PLACED ONTO THE HEAD OF A USER AND GENERATES AN IMAGE, AND DISPLAY DEVICE COMPRISING SUCH A SPECTACLE LENS
A spectacle lens for a display device is of multi-shell construction. A first shell includes a first interface facing towards a second shell. The second shell includes a second interface facing towards the first shell. The two shells are connected to one another via the two interfaces. The deflection portion includes at least one reflective deflection element or a plurality of reflective deflection elements arranged next to one another that are formed in the second shell. At least one of the deflection elements projects relative to the second interface in order to serve as a spacer that predefines the spacing of the two shells connected to one another.
An eyeglass lens for an optical imaging element for producing a virtual image of an initial image includes a main body and at least one complementary element mounted on the main body. The main body has a material with a first index of refraction n1. A viscous or solid intermediate layer is arranged between the complementary element and the main body at least in the region where the complementary element overlaps with a reflection section of the main body. The material of the viscous or solid intermediate layer has a second index of refraction n2 that satisfies the condition n2θE.
The invention relates to a method for producing a plastic molding, wherein a) a plastic film (5) is placed on a main frame (2) having a first through-opening (3) such that the plastic film (5) completely covers the first through-opening (3) and lies on an edge zone (6) of an upper face (4) of the main frame (2), which edge zone delimits the first through-opening (3), b) the plastic film lying on the main frame (2) is heated, and c) a fluid pressure medium is applied to the plastic film lying on the main frame (2) and heated in step (b), such that the plastic film (5) is pushed against a mold (39), thereby forming the film to give a plastic molding. In step a) a tensioning frame (10), which has a second through-opening (11), is applied to the plastic film (5) lying on the main frame (2) and is positioned such that the tensioning frame (10) pushes the plastic film (5) in the edge region (6) against the upper face (4) of the main frame (2), thereby fixating it, and that the second through-opening (11) in the tensioning frame (10) is at least partially opposite the first through-opening (3) in the main frame (2), and step b) is carried out with the plastic film (5) fixated between the main frame (2) and the tensioning frame (10).
The invention relates to a method for producing a plastic moulded part, wherein a) a plastic film (5) is laid onto a main frame (2) having a first through-opening (3) such that the plastic film (5) entirely covers the first through-opening (3) and rests on an edge zone (6) of an upper side (4) of the main frame (2) bordering the first through-opening; b) the plastic film lying on the main frame (2) is heated, and c) the plastic film lying on the main frame (2) and heated in step (b) is applied with a fluid pressure medium in such a way that the plastic film (5) is pressed against a tool (39) and thereby shaped into the plastic moulded part, wherein, a clamping frame (10) having a second through-opening (11) is positioned on the plastic film (5) lying on the main frame (2) in step (a) such that, in the region of the edge zone (6), the clamping frame (10) presses the plastic film (5) against the upper side (4) of the main frame (2) and thereby fixes same, and such that the second through-opening (11) of the clamping frame (10) is at least partially opposite the first through-opening (3) of the main frame (2), wherein the step (b) is carried out with the plastic film (5) fixed between the main frame (2) and the clamping frame (10), and wherein there is a pressure chamber (30) in step (c) in which the shaping of the plastic film (5) is carried out, wherein, in order to form the pressure chamber (30), a wall (41) surrounding the tool (39) presses the main frame (2) against the plastic film (5) and thereby presses said plastic film against the clamping frame (10), such that the clamping frame (10) is part of the pressure chamber (30) and the main frame (2) is part of the pressure chamber (30).
The invention relates to an objective with an objective inlet (27), an objective outlet (F8, 29), a first group of reflective surfaces (F1, F3, F5, F7), a second group of reflective surfaces (F2, F4, F6, F8), wherein at least one of the reflective surfaces (F1, F2, F3, F4, F5, F6, F7, F8) satisfies an imaging function, and at least one mirror (P). The first group of reflective surfaces (F1, F3, F5, F7), the second group of reflective surfaces (F2, F4, F6, F8), and the at least one mirror (P) are arranged relative to one another such that the reflective surfaces and the mirror are arranged on different respective peripheral sides of the three peripheral sides of an imaginary triangular prism (30). Furthermore, the reflective surfaces (F1, F3, F5, F7) of the first group and the reflective surfaces (F2, F4, F6, F8) of the second group are arranged relative to one another and are inclined relative to the at least one mirror (P) such that a beam bundle which is incident through the objective inlet (27) reaches the objective outlet (F8, 29) by being reflected on the reflective surfaces (F1, F3, F5, F7) of the first group, the reflective surfaces (F2, F4, F6, F8) of the second group, and the at least one mirror (P).
G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system
G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
21.
COUPLING FEATURE FOR DATA GLASSES FOR COUPLING AMBIENT LIGHT INTO AN AMBIENT LIGHT SENSOR LOCATED INSIDE THE SPECTACLE FRAME
The disclosure relates to a head-mounted-display and a sensor included in a fixation component of the head-mounted-display, wherein the sensor is configured for the detection of ambient light, wherein the display element has a coupling feature configured for a direction of ambient light impinging on the coupling feature onto the sensor.
The invention relates to a display device comprising: a holding device (2) which can be placed onto the head of a user; an imager (6) secured to the holding device (2) for generating an image; a control unit (15) for controlling the imager (6); and a spectacle lens (3, 4) that is secured to the holding device (2) and has a coupling-in portion (9) and a coupling-out portion (12) spaced therefrom in a first direction. The coupling-out portion (12) has a deflecting structure (13) having a predetermined extension in the first direction, and the generated image is coupled into the spectacle lens (3, 4) via the coupling-in portion (9), is guided in the spectacle lens (3, 4) by at least one reflection as far as the coupling-out portion (12), and coupled out into an exit pupil (16) via the coupling-out portion (12) by deflecting on the deflecting structure (13) in a coupling-out direction. As a result, when the holding device (2) is placed on the user's head, the user can perceive the coupled-out image as a virtual image. The coupling-in portion (9) has an entry surface (10) which is wider in the first direction than the image of the imager (6), and it is possible to adjust the entry surface (10) coupling-in position at which the image is coupled in via the entry surface (10) in the first direction. The coupling-in position determines the coupling-out direction of the coupling-out portion (12) and therefore the position of the exit pupil (16) in the first direction such that the distance between the exit pupil (16) and the coupling-in portion in the first direction can be adjusted. Irrespective of the coupling-in position, when the deflecting structure (13) causes a deflection, the deflecting structure (13) is always utilised across the entire predetermined extension in the first direction.
An optical system includes a light guide to be worn in front of one eye, which guides light beams from the source image into the light guide and towards a reflective outcoupling arrangement, which couples the light beams out of the light guide to the eye. The outcoupling arrangement has a plurality of individual mirrors, which are spaced apart from one another in the light propagation direction. A first group of individual mirrors couples first light beams, which originate from a first imaging region, out of the light guide towards the eye, and at least one second group of individual mirrors couples second light beams, which originate from a second imaging region, out of the light guide towards the eye. The individual mirrors of the first group and the second group are each arranged alternating in the light propagation direction.
The disclosure relates to a device for mounting two spherical optical components. The device includes a first holder, having a receptacle for a first optical element with a first spherical convex face with a first radius, and a second holder, having a receptacle for a second optical element with a second spherical optical concave face with a second radius. At least one of the holders has a supporting face with a third radius, and the first holder can be supported on the second holder such that the radii have a common center point when the first optical element is held in the first holder and the second optical element is held in the second holder.
Systems, methods, computer programs and devices are provided where a virtual operating system application essentially operating a device with reduced computing power runs on a mobile device. The virtual operating system may allow running of applications for the further device or act as a proxy for the further device to be controlled by other applications running on the mobile device.
There is provided glasses comprising a frame (2) and two lenses (3, 4) mounted in the frame (2), wherein the frame (2) comprises at least one sensor (12, 14) for measuring a human vital sign of the person wearing the glasses (1).
To improve the imaging quality of an imaging optical unit having a light-guiding arrangement for transferring at least one colour channel having a spectral maximum and a spectral bandwidth, the light-guiding arrangement reduces the spectral bandwidth of the at least one colour channel when the at least one colour channel is transferred.
An optical system for generating a virtual image of a source image provided on an image generator includes a surface of an output coupling that is exposed to a light beam path that is surface-treated such that the light beam path is coupled out from an optical waveguide toward the eye from first partial regions of the surface of the output coupling. In second partial regions of the surface of the output coupling, said second partial regions being different from the first partial regions, said light beam path is coupled out from the optical waveguide toward the eye at most with reduced intensity, or not at all.
A spectacle lens for a display device which can be placed on the head of a user and generate an image has a front and a rear, an injection section and a deflection section spaced from the injection section, an exit section in the rear and a light-guiding channel which guides light beams of pixels of the generated image, which are injected into the spectacle lens via the injection section, in the spectacle lens to the deflection section, by which they are deflected towards the exit section and then coupled out of the spectacle lens through the exit section. The spectacle lens is in the form of a progressive lens having a distance vision region and a near vision region, and the exit section, as viewed from above onto the rear of the spectacle lens, lies outside the distance vision region and outside the near vision region.
A method is provided for the user-specific calibration of a display apparatus, wearable on the head of a user, for an augmented presentation, wherein A), in a basic calibration step, the position of the at least one eye is ascertained relative to the display apparatus in all three spatial directions in the state where the display apparatus is worn on the head of the user and said position is saved in the display apparatus as adjustment data in such a way that an image generating module of the display apparatus generates the image taking account of the adjustment data.
The invention relates to a method for producing a photographic lens (11) which comprises a translucent main part (12) and optical imaging elements (3a-h) arranged along a folded optical axis OA. The angle α between sections of the optical axis OA1 - OA9 is less than 180 degrees in front of and behind the fold. The optical imaging elements (3a-h) comprise reflective elements, at least one of which has a reflective surface curved in a non-rotationally symmetrical manner. The production method has the steps of producing a translucent main part (12) and forming the optical imaging elements (3a-h) in the main part (12). The invention additionally relates to a method for producing an image capturing device (10), to a photographic lens (11), and to an image capturing device (10).
The invention relates to a device for mounting two spherical optical components. The device comprises a first holder, having a receptacle for a first optical element with a first spherical convex face with a radius (R1), and a second holder, having a receptacle for a second optical element with a second spherical optical concave face with a radius (R2). At least one of the holders has a supporting face with a radius (R3), and the first holder can be supported on the second holder such that the radii (R1, R2, R3) have a common centre point when the first optical element is held in the first holder and the second optical element is held in the second holder.
An optical system for transmitting a source image includes a light guide, which defines a light transmission channel, an optical coupling arrangement and an optical decoupling arrangement, the coupling arrangement being designed to couple light emerging from the source image into the light guide arrangement in such a way that the light can propagate in the light guide arrangement by total reflection, and the decoupling arrangement being designed to decouple light that has propagated in the light guide arrangement from the light guide arrangement. The light guide arrangement comprises an optical deflection device, which, as viewed in the direction of propagation of the light in the light guide arrangement, is arranged between the coupling arrangement and the decoupling arrangement and is designed to deflect light ray bundles, emerging from the coupling arrangement at different beam angles and impinging divergently on the deflection device, in bundled manner towards the decoupling arrangement.
Systems, methods, computer programs and devices are provided where a virtual operating system application (22) essentially operating a device with reduced computing power runs on a mobile device (16). The virtual operating system may allow running of applications (26A, 26B) for the further device or act as a proxy for the further device to be controlled by other applications running on the mobile device.
An optical transmission assembly for transmitting a source image includes a waveguide assembly, an incoupling assembly for coupling light emitted from the source image into the waveguide assembly, and an outcoupling assembly for coupling the light guided in the waveguide assembly out of the waveguide assembly. The light emitted from the source image and coupled into the waveguide assembly can be propagated between the incoupling assembly and the outcoupling assembly in the waveguide assembly by means of a total reflection. The incoupling assembly has at least one diffractive incoupling grating which is inclined by an angle (α) ranging from 20° to 60° relative to a normal of a boundary surface of the waveguide assembly, and/or the outcoupling assembly has at least one diffractive outcoupling grating which is inclined by an angle (α) ranging from 20° to 60° relative to a normal of a boundary surface of the waveguide assembly.
To improve the imaging quality of an imaging optical unit having a light-guiding arrangement for transferring at least one colour channel (I, II, III) having a spectral maximum and a spectral bandwidth, the light-guiding arrangement (3) reduces the spectral bandwidth of the at least one colour channel (I, II, III) when the at least one colour channel (I, II, III) is transferred.
A spectacle lens for a display device that can be fitted on the head of a user and generate an image. A coupling-in section in an edge area of the spectacle lens and a coupling-out section in a central area of the spectacle lens. The spectacle lens is suitable for coupling light bundles of pixels of the generated image into the spectacle lens via the coupling-in section, guiding them in the spectacle lens to the coupling-out section and coupling them out of the spectacle lens via the coupling-out section. The coupling-in section can divide at least one of the light bundles into several first sub-bundles and couple them into the spectacle lens offset from each other in a first direction such that the first sub-bundles are guided in the spectacle lens to the coupling-out section along a second direction running transverse with respect to the first direction.
A curved light guide can be used as an imaging optical unit or as part of an imaging optical unit for an HMD. The light guide can be arranged in front of at least one eye and have a concave curvature, as seen from the eye. The light can include a back surface facing the eye and a front surface facing away from the eye, an input coupling structure for coupling light into the light guide in such a way that light is guided through the light guide with reflection at the front surface and/or the back surface, and an output coupling structure for coupling out the light guided through the light guide. The light guide can have a diverging structure, the absolute value of the focal length of which is less than or equal to the radius of curvature of the light guide.
An optical system for generating a virtual image of a source image provided on an image generator (12) comprises at least one optical waveguide (16) to be worn in front of an eye (14), an input coupling arrangement (24) for coupling a light beam path (26) emanating from the source image into the optical waveguide (16), an output coupling arrangement (28) for coupling the light beam path (26) out of the optical waveguide (16) toward the eye (14), wherein the input coupling arrangement (24) couples the light beam path (26) into the optical waveguide (16) in such a way that the light beam path (26) propagates in the optical waveguide (16) as a result of reflection at an inner and/or outer surface (18, 20) of the optical waveguide (16) to the output coupling arrangement (28), wherein the output coupling arrangement (28) has a surface (29) that is exposed to the light beam path (26) propagating in the optical waveguide (16) to the output coupling arrangement (28). The surface (29) of the output coupling arrangement (28) that is exposed to the light beam path (26) is surface-treated in such a way that the light beam path (26) is coupled out from the optical waveguide (16) toward the eye from first partial regions (42, 44, 46; 60) of the surface (29) of the output coupling arrangement (28), while in second partial regions (48a, 48b, 50a, 50b, 52a, 52b; 62) of the surface (29) of the output coupling arrangement (28), said second partial regions being different from the first partial regions, said light beam path is coupled out from the optical waveguide (16) toward the eye (14) at most with reduced intensity, or not at all.
A spectacle lens for an imaging optical unit for producing a virtual image of an output image presented on an image generator includes an inner surface facing the eye and an outer surface facing away from the eye, an input coupling section, and an output coupling structure. The imaging beam path is guided to the output coupling structure by way of reflections between the inner surface and the outer surface. A reflection surface having a concave curvature when seen from the interior of the spectacle lens is present between the input coupling section and the output coupling structure in the region of the inner surface and/or in the region of the outer surface. The curvature of said reflection surface differs from a basic curvature of the inner surface or of the outer surface of the spectacle lens.
An imaging apparatus for smartglasses includes an image generator element arrangement having a number of image generator elements, on which a corresponding number of original partial images is represented, a number of imaging channels comprising in each case at least one image-forming reflection surface and/or at least one image-forming refraction surface, said number corresponding to the number of image generator elements, wherein each of the imaging channels is associated with one of the image generator elements and transmits one of the original partial images, and a spectacle lens, which is common to all imaging channels and via which the imaging channels are directed in the direction of an observer's eye. The image-forming reflection surfaces and/or refraction surfaces of the imaging channels are surfaces of a prism that is arranged on the spectacle lens.
A spectacle lens has a transparent substrate and at least one HOE-capable polymer layer arranged on the transparent substrate. The at least one HOE-capable polymer layer is suitable for forming a holographic optical element. Related methods and apparatus are described.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
G02C 7/08 - Auxiliary lenses; Arrangements for varying focal length
The invention presents molding tools, in which a position of a molding tool within a base tool or a position of molding cores relative to each other can be set by adjusting a position of base tools by means of controllable adjustment elements.
A spectacle lens for smartglasses can include at least one light source arrangement at the edge of the spectacle lens that emits coherent light, or at least one region at the edge of the spectacle lens for coupling in light from a light source arrangement that emits coherent light, or at least one light source arrangement that is embedded in the spectacle lens. A transparent or partly transparent display can provided to the spectacle lens such that coherent light emanating from the light source arrangement emits coherent light passing through the display or is reflected by the display. The wavefront of the coherent light is modulable in terms of its amplitude and/or its phase by an actuation of the display. A deformation device for deforming the wavefront of the coherent light before or after the modulation by the display can also be provided.
G02B 27/18 - Optical systems or apparatus not provided for by any of the groups , for optical projection, e.g. combination of mirror and condenser and objective
A spectacle lens for a display device which can be placed on the head of a user and generate an image has a front and a rear, an injection section and a deflection section spaced from the injection section, an exit section in the rear and a light-guiding channel which guides light beams of pixels of the generated image, which are injected into the spectacle lens via the injection section, in the spectacle lens to the deflection section, by which they are deflected towards the exit section and then coupled out of the spectacle lens through the exit section. The spectacle lens is in the form of a progressive lens having a distance vision region and a near vision region, and the exit section, as viewed from above onto the rear of the spectacle lens, lies outside the distance vision region and outside the near vision region.
A lacquer composition is provided, comprising 20%-79.9% by weight, based on the total weight of the composition, of a thiol compound having two or more thiol groups, 20%-79.9% by weight, based on the total weight of the composition, of a compound having two or more carbon-carbon double bonds and 0.1%-10% by weight, based on the total weight of the composition, of a separating agent having an alkyl radical having 4-20 carbon atoms, where the alkyl radical is unsubstituted or fluorine-substituted and the alkyl radical is bonded to a functional group. Also provided are the use of this lacquer composition as a protective lacquer on an optical surface of an optical element in the production of the optical element, and an optical element comprising the protective lacquer.
C09D 147/00 - Coating compositions based on homolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Coating compositions based on derivatives of such polymers
C08G 75/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 75/04 - Polythioethers from mercapto compounds or metallic derivatives thereof
C08G 18/50 - Polyethers having hetero atoms other than oxygen
G02B 1/14 - Protective coatings, e.g. hard coatings
C09D 5/20 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
G02B 1/12 - Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
C08F 38/00 - Homopolymers or copolymers of compounds having one or more carbon-to-carbon triple bonds
A method is provided for the user-specific calibration of a display apparatus, wearable on the head of a user, for an augmented presentation, wherein A), in a basic calibration step, the position of the at least one eye is ascertained relative to the display apparatus in all three spatial directions in the state where the display apparatus is worn on the head of the user and said position is saved in the display apparatus as adjustment data in such a way that an image generating module of the display apparatus generates the image taking account of the adjustment data.
A method for producing a freeform Fresnel surface having a number of Fresnel facets with a respective Fresnel segment surface and a trailing edge includes the production of the freeform Fresnel surface via machining processing of a starting body based on the construction data for the freeform Fresnel surface. With the aid of the circular cylinder casing surfaces and/or cone casing surfaces, the projection of the edges of the Fresnel facets on the x-y-plane represent circular paths for the creation of the construction data.
G02B 3/08 - Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
B23B 5/36 - Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02C 7/08 - Auxiliary lenses; Arrangements for varying focal length
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
The invention relates to an ocular for the virtual imaging of an image (11), said image being divided into a first and a second image part (12, 13) such that a sub-region of the image (11) is contained in two image parts (12, 13), the ocular (1) comprising an incident face (15), a first and a second deflection face (16, 18) which are inclined in relation to each other, a channel-separating layer (17) arranged between the two deflection faces (16, 18), and an exit face (19), the ocular (1) providing a first imaging channel for the first image part (12) and a second imaging channel for the second image part (13), where the first imaging channel in said sequence extends through the incident surface (15) and through the first deflection surface (16), is deflected on the channel-separating layer (17) towards the first deflection face (16), is deflected on the first deflection face (16) towards the exit face (19), and extends through the exit face (19) to an exit pupil (20) of the ocular (1), and the second imaging channel in this sequence extends through the incident face (15), through the first deflection face (16) and through the channel-separating layer (17) to the second deflection surface (18), is deflected on the second deflection surface (18) towards the exit surface (19), and extends through the exit surface (19) to the exit pupil (2).
An optical component has a small-volume section and a large-volume section, wherein said optical component is a single-piece injection-molded component with the exception of one region in the large-volume section, said component being supplemented, in the region in the large-volume section, by an add-on to the optical component.
B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
B29C 39/10 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29L 11/00 - Optical elements, e.g. lenses, prisms
58.
Optical component and method for coating optical component
Methods for coating an optical component with a sharp-edged structure and an optical component are provided. In a variant of the method, the sharp-edged structure in the optical component is rounded in that a lacquer that forms a lacquer meniscus is applied to the sharp-edged structure and subsequently solidified, the lacquer meniscus forming the rounding after the lacquer has solidified. After the rounding, a coating is applied to the optical component, the coating being applied at least to the lacquer meniscus.
An ophthalmological optical element, in particular a spectacle lens, includes a first refractive optical substrate, which has a positive or negative first optical power; a first diffractive optical element, which has a second optical power; and a second diffractive optical element, which has a third optical power. The first diffractive optical element and the second diffractive optical element have opposite optical powers. The first diffractive optical element and the second diffractive optical element interact in an at least partly achromatic manner.
A spectacle lens for a display device that can be fitted on the head of a user and generates an image, wherein the spectacle lens comprises a front side and a rear side, a coupling-in section and a coupling-out section spaced apart from the coupling-in section, which comprises several reflective deflecting surfaces arranged next to each other, which together form a reflective Fresnel surface, as well as a light-guiding channel which is suitable for guiding light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens to the coupling-out section, by which they are coupled out of the spectacle lens, and wherein the distance of the reflective deflecting surfaces from the front side increases and/or decreases as the distance from the coupling-in section increases.
The invention relates to an imaging device for a head-mounted display for generating a virtual image from an original image split into at least two original subimages. The imaging device comprises: an imager element arrangement (1) comprising a number of imager elements (11 to 16) on which a corresponding number of original subimages is displayed; a number of imaging channels corresponding to the number of imager elements (11 to 16), which each have at least one image-forming reflection surface (271 to 276) and/or at least one image-forming refraction surface (251 to 256, 291 to 296), each of the imaging channels being associated with one of the imager elements (11 to 16) and transmitting one of the original subimages; and an ophthalmic lens (5) common to all of the imaging channels, used to deflect the imaging channels towards an observer's eye. The image-forming reflection surfaces (271 to 276) and/or refraction surfaces (251 to 256, 291 to 296) of the imaging channels are surfaces of a prism (3) arranged on the ophthalmic lens (5).
A spectacle lens for a display device that can be fitted on the head of a user and generate an image guides light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens by reflections on the rear side and a reflecting surface lying opposite this to the coupling-out section and coupling them out of the spectacle lens via the coupling-out section. A splitter layer reflects a portion of light bundles reflected by the rear side towards the rear side and transmits a portion, wherein after reflection on the rear side the reflected portion strikes the splitter layer again and there, once again, is partially reflected towards the rear side and partially transmitted. The transmitted portions strike the facets are coupled out of the spectacle lens through the splitter layer and the rear side.
An optical element, used as first imaging element, includes a first entry surface and a curved exit surface. A spectacle lens, used as second imaging element, includes a curved second entry surface and a coupling-out section spaced apart therefrom. An imaging optical system images the generated image as a virtual image by guiding the light bundles fed to the optical element via the first entry surface to the curved exit surface, and coupling them from the latter, via the curved second entry surface, into the spectacle lens, in which they are guided to the coupling-out section and coupled out via the coupling-out section to generate the virtual image. To reduce the lateral chromatic aberration in the imaging of the virtual image, the two imaging elements are produced from different materials; one having positive refractive power and the other having negative refractive power for imaging the virtual image.
G02B 6/34 - Optical coupling means utilising prism or grating
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
G02C 7/08 - Auxiliary lenses; Arrangements for varying focal length
64.
Lens arrangement, in particular a spectacle glass arrangement and method for producing a lens arrangement
Disclosed is a lens arrangement, in particular a spectacle lens arrangement, having a base lens element, wherein the base lens element has a first surface and wherein the first surface has a first optically effective region, wherein the first surface has an elongate recess and wherein the elongate recess extends adjacent to the first optically effective region and at least partly encompasses the first optically effective region. Moreover, methods for producing a lens arrangement are disclosed.
In an eyeglass lens, an edge adjustment between an incoupling segment and an outcoupling structure can be provided by shaping of the inner surface. In the region of the eyeglass lens through which the eye looks for straight-ahead viewing, the inner surface substantially has a curvature that approximates the curvature of a typical inner surface of an eyeglass lens to such an extent that no perceptible optical imaging errors are induced by the inner surface when straight-ahead viewing. In the region of the edge adjustment, the inner surface has a shape that deviates to a greater extent from the curvature of the typical inner surface, which shape enables an imaging beam path coupled into the eyeglass lens by the incoupling segment to be directed to the outcoupling structure by reflections between the inner surface and the outer surface of the eyeglass lens.
The invention relates to a spectacle lens for a display device (1) which can be placed on the head of a user and generates an image. The spectacle lens (3) has a front (19) and a rear (15), an injection section (11) and a deflection section (13) spaced from the injection section (11), an exit section (16) in the rear (15) and a light-guiding channel (12) which guides light beams (9) of pixels of the generated image, which are injected into the spectacle lens (3, 4) via the injection section (11) of the spectacle lens (3, 4), in the spectacle lens (3, 4) to the deflection section (13), by which they are deflected towards the exit section (16) and then coupled out of the spectacle lens (3, 4) through the exit section (16). The spectacle lens (3, 4) is in the form of a progressive lens having a distance vision region (F) and a near vision region (N), and the exit section (16), as viewed from above onto the rear of the spectacle lens (3, 4), lies outside the distance vision region (F) and outside the near vision region (N).
A composition containing an epoxide compound with two or more epoxide groups, a thiol ester with two or more ester groups and two or more thiol groups and/or a thiol ether with two or more thiol groups, and 0.005-2 wt. %, based on the total weight of the composition, of a tertiary amine which has a 5- or 6-membered aliphatic nitrogen heterocycle, said composition containing less than 1 wt. % of a primary amine. The composition can be used as an embedding medium for microscopy and as an adhesive and to an optical element which comprises the composition.
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
A spectacle lens has a transparent substrate and at least one HOE-capable polymer layer arranged on the transparent substrate. The at least one HOE-capable polymer layer is suitable for forming a holographic optical element. Related methods and apparatus are described.
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
A lens (1) for a pair of smartglasses is provided. The lens comprises: at least one light source arrangement (11A, 11B) that is arranged at the edge of the lens (1) and that emits coherent light, or at least one region (9A, 9B), arranged at the edge of the lens, for input coupling the light of a light source arrangement (11A, 11B) that emits coherent light, or at least one light source arrangement embedded in the lens, a transparent or partly transparent display (5) that is arranged at or in the lens (1) in such a way that coherent light emanating from the light source arrangement (11A, 11B) that emits coherent light passes through the display (5) or is reflected by the display (5) and that is embodied in such a way that the wavefront of the coherent light is modulatable in terms of the amplitude and/or the phase thereof by way of an appropriate actuation of the display (5, 105), and a deformation device (7) for deforming the wavefront of the coherent light before or after the modulation by the display (5).
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
38 - Telecommunications services
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Recorded content; Information technology and audio-visual, multimedia and photographic devices; Magnets, magnetizers and demagnetizers; Scientific and laboratory devices for treatment using electricity; Apparatus, instruments and cables for electricity; Optical devices, enhancers and correctors; Safety, security, protection and signalling devices; Diving equipment; Navigation, guidance, tracking, targeting and map making devices; Measuring, detecting and monitoring instruments, indicators and controllers; Scientific research and laboratory apparatus, educational apparatus and simulators; Smartglasses; Spectacle lenses; Spectacles [optics]; Virtual reality headsets; Audiovisual headsets; Parts and accessories for all the aforesaid goods, included in this class. Advertising, marketing and promotional services; Commercial services and consumer information, namely auctioneering, rental of automatic vending machines, brokerage, arranging of business contacts, collective buying, commercial evaluation, preparation of competitions, agency business, import and export, negotiation and brokerage, ordering, price comparison services, procurement for others, arranging of subscriptions, retailing and wholesaling in relation to smart glasses, spectacle lenses, spectacles, virtual reality headsets and audiovisual headsets; Business assistance, management and administrative services; Business analysis, research and information services; Rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class. Telecommunication services; Rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class. Publishing and reporting; Education, entertainment and sport services; Entertainment provided by virtual reality content; Translation and interpretation; Rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class. IT services, namely development, programming and implementation of computer software, development of computer software, hosting, software as a service (SaaS) and rental of computer software, rental of computer hardware and facilities, IT consultancy and information, IT security, protection and restoration, data duplication and conversion, data coding, computer analysis and diagnostics, research and development, and implementation of computers and computer systems, computer project management, data mining, digital watermarks, computer services, technological services relating to computers, computer network services, updating of memory banks of computer systems, data migration, updating of websites, for others, monitoring of computer systems by remote access; Science and technology services; Testing, authentication and quality control; Design services; Rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class. Licensing of technology, software, intellectual property and industrial property rights.
The invention relates to molding tools, in which a position of a molding tool (3) within a base tool (1) or a position of molding cores relative to each other can be set by adjusting a position of base tools (1A, 1B) by means of controllable adjustment elements (11, 2, 13, 15, 17).
An optical element for a display device that can be placed on the head of a user and generate an image as a virtual image. The optical element having a first part, which comprises an optically effective structure, and a second part connected to one another by an adhesive composition comprising a ultra material. The first part material comprises one or more cycloolefin polymers, the first and third material are different from one another, and the second part material and third material in each case comprise at least one organic polymer. The refractive index differences for at least one wavelength between 380 nm and 800 am between the first and the second material and between the second and the third material are in each case ≤0.02. The method of producing the optical element and the display device comprising the optical element are also provided.
G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
A method for producing an optical element includes a) providing a first shell which is transparent in the predetermined wavelength range, b) applying a coating which is optically effective for the predetermined wavelength range onto the structured portion, c) providing a second shell which is transparent in the predetermined wavelength range, which shell has an integral embodiment and a smooth lower side which has a complementary form to the form of the upper side, d) applying an adhesive layer which is transparent in the predetermined wavelength range onto the upper side of the first shell and/or the lower side of the second shell, and e) connecting the upper side of the first shell with the lower side of the second shell by means of the adhesive layer such that a two-shell optical element is produced, in which the optically effective structure is buried.
The invention relates to a method for producing a freeform fresnel surface having a number of fresnel facets (12) with a respective fresnel segment surface (10) and a trailing edge (28). In the method, the production of the freeform fresnel surface occurs by means of machining processing of a starting body based on the construction data for the freeform fresnel surface. With the aid of the circular cylinder casing surfaces and/or cone casing surfaces, the projection of the edges of the fresnel facets on the x-y-plane represent circular paths for the creation of the construction data.
G02B 3/08 - Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
B23B 5/36 - Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
B23B 27/20 - Cutting tools of which the bits or tips are of special material with diamond bits
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
G02C 7/08 - Auxiliary lenses; Arrangements for varying focal length
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
A lacquer composition is provided, comprising 20%-79.9% by weight, based on the total weight of the composition, of a thiol compound having two or more thiol groups, 20%-79.9% by weight, based on the total weight of the composition, of a compound having two or more carbon-carbon double bonds and 0.1%-10% by weight, based on the total weight of the composition, of a separating agent having an alkyl radical having 4-20 carbon atoms, where the alkyl radical is unsubstituted or fluorine-substituted and the alkyl radical is bonded to a functional group. Also provided are the use of this lacquer composition as a protective lacquer on an optical surface of an optical element in the production of the optical element, and an optical element comprising the protective lacquer.
G02B 1/14 - Protective coatings, e.g. hard coatings
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 5/20 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
77.
SPECTACLE LENS FOR AN IMAGE-GENERATING DISPLAY DEVICE TO BE PLACED ON THE HEAD OF A USER AND DISPLAY DEVICE COMPRISING SUCH A SPECTACLE LENS
The invention relates to a spectacle lens for an image-generating display device (1) to be placed on the head of a user, wherein the spectacle lens (3) comprises a front side (18) and a rear side (15), a coupling-in section (11) and a coupling-out section (13) which is spaced apart from the coupling-in section (11) and comprises at least one reflective deflection surface (14), and further comprising a light-guiding channel (12) which is suitable to guide in the spectacle lens (3) light bundles (9) of pixels of the generated image, which are coupled into the spectacle lens (3) via the coupling-in section (11) of the spectacle lens (3), to the coupling-out section (13), from which they are coupled out of the spectacle lens (3). According to the invention, the spectacle lens has at least one stray light path, in which outgoing tray light (9') originating from pixels of the generated image is guided, wherein a partial area (F4) of the spectacle lens (3), which is located in the stray light path, is formed as a stray light blocking surface (F4).
An imaging optical unit for generating a virtual image of an initial image represented on an image generator includes at least one spectacle lens, an input coupling device for coupling an imaging beam path emanating from the initial image in between the inner surface and the outer surface of the spectacle lens, and a Fresnel structure present in the spectacle lens for coupling the imaging beam path out from the spectacle lens in the direction of the eye. The input coupling device couples the imaging beam path in between the inner surface and the outer surface of the spectacle lens in such a way that it is guided by reflections between the inner surface and the outer surface to the Fresnel structure. The Fresnel structure has Fresnel surfaces, which bring about a base deflection of the rays of the imaging beam path by 45 to 55 degrees.
A spectacle lens (1) for an imaging optical unit for producing a virtual image of an output image presented on an image generator is provided. The spectacle lens comprises: an inner surface (3) that faces the eye and an outer surface (5) that faces away from the eye, an input coupling section (7) for coupling between the inner surface (3) and the outer surface (5) of the spectacle lens (1) an imaging beam path that emanates from the output image, and an output coupling structure (9) that is present in the spectacle lens (1) for coupling the imaging beam path out of the spectacle lens (1) in the direction of the eye. The imaging beam path is guided to the output coupling structure (9) by way of reflections between the inner surface (3) and the outer surface (5). At least one reflection surface (R3) that has concave curvature when seen from the interior of the spectacle lens (1) is present between the input coupling section (7) and the output coupling structure (9) in the region of the inner surface (3) and/or in the region of the outer surface (5), the curvature of said reflection surface differing from a basic curvature of the inner surface (3) or of the outer surface (5) of the spectacle lens (1).
Disclosed is a coupling device for coupling the imaging beam path between the inner surface and the outer surface of the eyeglass lens; and a decoupling structure-present in the eyeglass lens for decoupling the imaging beam path from the eyeglass lens in the direction of the eye. The coupling device couples the imaging beam path between the inner surface and the outer surface of the eyeglass lens such that the imaging beam path is guided to the decoupling structure via reflections between the inner surface and the outer surface. A beam-splitting structure is present between the display device and the area of the eyeglass lens, in which the first reflections occurs, said beam-splitting structure splitting the imaging beam path extending from the image generator into two partial imaging beam paths, which form the beam paths arriving from different directions on the partial structures of the decoupling structure.
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02B 23/10 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02B 27/32 - Fiducial marks or measuring scales within the optical system
81.
Spectacle lens for a display device which can be placed on the head of a user and which generates an image, and display device comprising such a spectacle lens
A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens includes a coupling-in section, a coupling-out section, and a light guiding channel. The spectacle lens includes a first partial spectacle lens connected to a second partial spectacle lens. The light guiding channel runs in the first partial spectacle lens and the two partial spectacle lenses are connected to each other via contact surfaces which extend on the one hand from the front side to the rear side and on the other hand from the edge of the spectacle lens along a predetermined length in a second direction, which runs transversely with respect to the first direction.
The invention relates to an eyeglass lens (3) for an optical imaging element for producing a virtual image of an initial image that is depicted on an imager (21). The eyeglass lens comprises a main body (41) and at least one complementary element (43) mounted on said main body (41). The main body (41) consists of a material with a first index of refraction n1, and comprises an inner surface (13) for facing the eye, an outer surface (17) for facing away from the eye, and a light conducting section which extends between an incoupling section (25) for coupling in an imaging beam path between the inner surface (13) and the outer surface (17), and an outcoupling structure (31) for coupling said imaging beam path out from the main body (41). In said light conducting section, the imaging beam path is conducted to the outcoupling structure (31) by means of reflection at at least one reflection section (R1, R2, R3, R4) of the inner surface (13) and/or of the outer surface (17). The complementary element (43) is mounted on the inner surface (13) and/or the outer surface (17) of the main body (41), and overlaps with at least one reflection section (R1, R2, R3, R4) of the main body (41). A viscous or solid intermediate layer (45) is arranged between the complementary element (43) and the main body (41) at least in the region where the complementary element (43) overlaps with the reflection section (R1, R2, R3, R4). The material of the viscous or solid intermediate layer (45) has a second index of refraction n2 that satisfies the inequation n2 < n1 sin(θE), where θE is an angle of incidence of the light beams of the imaging beam path proceeding from the incoupling section (25) and incident on the reflection section (R1, R2, R3, R4), selected such that at least 50 % of the light beams of the imaging beam path have an angle of incidence of θ >θΕ.
A method for producing an optical element includes providing a first partial body which is transparent for the predetermined wavelength range and including on its upper side a structured section, applying a coating which is optically effective for the predetermined wavelength range onto the structured section in order to form the optically effective structure, and applying a cover layer which is transparent for the predetermined wavelength range onto the upper side of the first partial body by means of casting of thermoplastic material and/or duroplastic material.
G02B 1/14 - Protective coatings, e.g. hard coatings
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
An imaging device includes at least one eyeglass lens to be worn in front of the eye and a display device arranged in the edge region of the eyeglass lens, said display device including an image generator and an imaging optics arranged between the image generator and the eyeglass lens. The image generator is the start point of an imaging beam path which generates the virtual image having an image distance on the basis of the output image and which penetrates into the eyeglass lens by means of the imaging optics via the edge region of the eyeglass lens. An outcoupling device for outcoupling the imaging beam path in the direction of the eye is provided in the eyeglass lens. The display device comprises a device for adjusting the image distance of the virtual image. The invention also relates to data eyeglasses comprising an imaging device.
A spectacle lens for a display device can be fitted on the head of a user and generate an image. The front side and/or the rear side can be curved. A light guiding channel can guide-light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section and coupled out of the spectacle lens via the coupling-out section. The light guiding channel includes a first reflecting surface and a second reflecting surface spaced apart from the first reflecting surface, each of which extend in a direction from the coupling-in section to the coupling-out section. At least one of the two reflecting surfaces can be formed as a switchable layer which can be switched into a first and a second state. The reflectivity of the switchable layer in the first state is higher than in the second state.
A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens can be constructed with several shells including an outer shell and an inner shell which is joined to the outer shell, wherein a curved channel shell, which includes a curved first reflecting surface and a curved second reflecting surface, is arranged between the outer and inner shell. The light guiding channel includes at least one section of the channel shell and the two reflecting surfaces on which the light bundles are reflected for guiding from the coupling-in section to the coupling-out section.
A first side of the outer shell of a spectacle lens faces away from the inner shell and forms the front side of the spectacle lens, and the first side of the inner shell faces away from the outer shell and forms the rear side of the spectacle lens. The outer shell includes the coupling-in section, the light guiding channel and the coupling-out section. The inner shell includes an opening which extends from the second side of the inner shell, which faces towards the outer shell, in the direction of the rear side and in which the light guiding channel sits. The coupling-out section lies next to the opening such that the light bundles coupled out by the coupling-out section enter the inner shell via the second side of the inner shell, run through the inner shell and leave the inner shell via the rear side.
A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens includes a front side and a rear side, a coupling-in section and a coupling-out section spaced apart from the coupling-in section, as well as a light guiding channel which is suitable for guiding light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens to the coupling-out section, by which they are coupled out of the spectacle lens. The light guiding channel includes a first reflecting layer, which extends from the coupling-in section to the coupling-out section and on which the light bundles are reflected for guiding to the coupling-out section. The first reflecting layer includes at least one transparent gap.
The present invention relates to an ophthalmological optical element (1), in particular a spectacle lens, comprising: a first refractive optical substrate (10) which has a positive or negative first optical power; a first diffractive optical element (21) which has a second optical power; a second diffractive optical element (22) which has a third optical power, wherein the first diffractive optical element (21) and the second diffractive optical element (22) have an opposing optical power, and wherein the first diffractive optical element (21) and the second diffractive optical element (22) interact at least partially achromatically. Furthermore, the present invention relates to a method for constructing an ophthalmological optical element of this type, and spectacles and a head-mounted display device comprising an ophthalmological optical element of this type.
SPECTACLE LENS FOR A DISPLAY DEVICE WHICH CAN BE PLACED ON THE HEAD OF A USER AND WHICH GENERATES AN IMAGE, AND DISPLAY DEVICE COMPRISING SUCH A SPECTACLE LENS
The invention relates to a spectacle lens for a display device (1) which can be placed on the head of a user and which generates an image. The spectacle lens (3) has a front face (18), a rear face (15), an incoupling section (11), an outcoupling section (13) which is arranged at a distance from the incoupling section (11) and which comprises multiple adjacently arranged reflective deflecting surfaces (14) that together form a reflective Fresnel surface (F), and a light guiding channel (12) which is suitable for guiding light bundles (9) of pixels of the generated image in the spectacle lens (3) to the outcoupling section (13), said pixels being coupled into the spectacle lens (3) via the incoupling section (11) of the spectacle lens (3), and the light bundles are coupled out of the spectacle lens (3) from the outcoupling section. The distance from the reflective deflecting surfaces (14) to the front face (18) increases and/or decreases as the distance to the incoupling section (11) increases.
A composition containing an epoxide compound with two or more epoxide groups, a thiol ester with two or more ester groups and two or more thiol groups and/or a thiol ether with two or more thiol groups, and 0.005-2 wt. %, based on the total weight of the composition, of a tertiary amine which has a 5- or 6-membered aliphatic nitrogen heterocycle, said composition containing less than 1 wt. % of a primary amine. The composition can be used as, an embedding medium for microscopy and as an adhesive and to an optical element which comprises the composition.
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
The invention relates to an optical component (1) which has a small-volume section (11) and a large-volume section (9), wherein said optical component is a single-piece injection-moulded component (3) with the exception of one region (5) in the large-volume section (9), said component being supplemented, in the region (5) in the large-volume section (9), by an add-on (13) to the optical component (1).
B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
B29C 39/10 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29L 11/00 - Optical elements, e.g. lenses, prisms
93.
IMAGING OPTICAL UNIT AND DISPLAY APPARATUS COMPRISING SUCH AN IMAGING OPTICAL UNIT
Provision is made of an imaging optical unit for a display apparatus (1) which may be placed onto the head of a user and which generates an image from a plurality of pixels from which light beams (9) emanate, wherein the imaging optical element (7) comprises an optical unit (8) having a first entry surface (F1) and a curved exit surface (F3), and a spectacle lens (3, 4) having a curved second entry surface (F4) and an output coupling portion (13) at a distance therefrom, wherein the curved exit surface (F3) is connected to the curved second entry surface (F4) and the imaging optical unit (7) images the generated image as a virtual image by virtue of the optical element (8) guiding the light beams (9) supplied to the optical element (8) by the first entry surface (F1) as far as the curved exit surface (F3), coupling said light beams from the latter into the spectacle lens (3, 4) via the curved second entry surface (F4), said light beams being guided in said spectacle lens as far as the output coupling portion (13) and being output coupled by means of the output coupling portion (13) for the purposes of generating the virtual image such that the optical element (8) is used as first imaging element and the spectacle lens (3, 4) is used as second imaging element, and wherein the two imaging elements (3, 4; 8) are produced from different materials for reducing the lateral chromatic aberration during imaging of the virtual image, with one of the two imaging elements (3, 4; 8) having positive refractive power and the other one of the two imaging elements (3, 4; 8) having negative refractive power for imaging the virtual image.
Disclosed are a method for coating an optical component (1) with a sharp-edged structure (3) and an optical component (1). In one embodiment of the method, the sharp-edged structure (3) in the optical component (1) is rounded by virtue of lacquer (7), which forms a lacquer meniscus (8), being applied to the sharp-edged structure (3) and subsequently being solidified, wherein the lacquer meniscus (8) forms the rounding after the lacquer (7) has solidified. After rounding, a coating (9, 11) is applied to the optical component (1), wherein the coating is at least applied to the lacquer meniscus (8).
The invention relates to a lens arrangement (12), in particular a spectacle lens arrangement, comprising a base lens element (36) having a first surface (44), said first surface (44) having a first optical working region (46) and an elongated recess (48) which extends adjacent to the first optical working region (46) and at least partially surrounds the first optical working region (46). The invention also relates to a method for producing a lens arrangement.
The invention relates to an eyeglass lens (3) for an imaging optical system for producing a virtual image of an initial image presented on an image generator (21). The eyeglass lens (3) has an inner surface (13) to be faced to the eye and an outer surface (17) to be faced away from the eye. In addition, an incoupling segment (25) for coupling in an imaging beam path between the inner surface (13) and the outer surface (17) and an outcoupling structure (31) for coupling the imaging beam path out of the eyeglass lens (3) toward the eye are present in the eyeglass lens (3), wherein the incoupling segment (25) is arranged in the eyeglass lens (3) in such a way that an imaging beam path coupled into the eyeglass lens (3) by the incoupling segment (25) is directed to the outcoupling structure (31) by reflections between the inner surface (13) and the outer surface (17) of the eyeglass lens (3). An edge adjustment (37) is present in the eyeglass lens (3) between the incoupling segment (25) and the outcoupling structure (31). The edge adjustment is realized by means of corresponding shaping of the inner surface (13). In the region of the eyeglass lens (3) through which the eye looks in the case of straight-ahead viewing, the inner surface (13) substantially has a curvature that approximates the curvature of a typical inner surface of an eyeglass lens with or without correction of defective vision to such an extent that no perceptible optical imaging errors are induced by the inner surface in the case of straight-ahead viewing. In the region of the edge adjustment (37), the inner surface (3) has a shape that deviates to a greater extent from the curvature of the typical inner surface, which shape enables an imaging beam path coupled into the eyeglass lens (3) by the incoupling segment (25) to be directed to the outcoupling structure (31) by reflections between the inner surface (13) and the outer surface (17) of the eyeglass lens (3). The entire inner surface (13) of the eyeglass lens (3) is described by a single free-form surface.
A spectacle lens for a display device can be fitted on the head of a user and generate an image. The spectacle lens includes a curved front and/or side, wherein a light guiding channel which is suitable for guiding light bundles of pixels of the generated image, which are coupled into the spectacle lens via the coupling-in section of the spectacle lens, in the spectacle lens to the coupling-out section to couple them out of the spectacle lens via the coupling-out section. The coupling-out section includes at least two deflecting surfaces arranged next to each other which reflect the light bundles in the direction of the rear side for the coupling out. Deflecting surfaces can be formed as a switchable layer which can be switched into a first and a second state, wherein the reflectivity of the switchable layers in the first state is higher than in the second state.
G02B 6/00 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
G02F 1/19 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-reflection or variable-refraction elements not provided for in groups
A method for adjusting a display device with a holder that can be fitted on the head of a user includes a front section in which two spectacle lenses are arranged which are connected to each other via a central part, an imaging unit secured to the holder, which generates an image, and an imaging optical system secured to the holder which, when the holder is fitted on the head of the user, images the generated image into an exit pupil such that the user can perceive it as a virtual image with his first eye. The first spectacle lens with the coupling-out section is positioned in such a way that the exit pupil of the imaging optical system coincides at least partially with the pupil of the first eye of the user when the holder is fitted on the head of the user.
Provided is an optical element with a Fresnel structure with several Fresnel segments. Each Fresnel segment has an optically active facet, the shape of which is part of a predetermined surface. The predetermined surfaces of the optically active facets differ in terms of their curvature profile.
An optical element includes a reflective Fresnel element for deflecting light bundles which are incident on the Fresnel element along a direction of incidence, into a direction of emergence. The Fresnel element includes a plurality of reflective facets arranged next to each other, which are formed curved, and in each case, comprise a first reflective section and an adjoining second reflective section. The reflectivity of the first reflective section is greater than the reflectivity of the second reflective section. The second reflective section of a first reflective facet lies in front of the first reflective section of the directly neighboring reflective facet, seen in the direction of incidence, with the result that the portion of the incident light bundle which is transmitted from the second reflective section of the first reflective facet, strikes the first reflective section of the directly neighboring reflective facet, in order to be deflected.
