A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
H04N 13/302 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
H04N 13/398 - Synchronisation thereof; Control thereof
H04N 13/232 - Image signal generators using stereoscopic image cameras using a single 2D image sensor using fly-eye lenses, e.g. arrangements of circular lenses
H04N 13/307 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
H04N 13/302 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
H04N 13/398 - Synchronisation thereof; Control thereof
H04N 13/232 - Image signal generators using stereoscopic image cameras using a single 2D image sensor using fly-eye lenses, e.g. arrangements of circular lenses
H04N 13/307 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
A method of displaying a light field to at least one viewer of a light field display device, the light field based on a 3D model, the light field display device comprising a plurality of spatially distributed display elements, the method including the steps of: (a) determining the viewpoints of the eyes of the at least one viewer relative to the display device; (b) for each eye viewpoint and each of a plurality of the display elements, rendering a partial view image representing a view of the 3D model from the eye viewpoint through the display element; and (c) displaying, via each display element, the set of partial view images rendered for that display element.
H04N 13/302 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
H04N 13/398 - Synchronisation thereof; Control thereof
H04N 13/232 - Image signal generators using stereoscopic image cameras using a single 2D image sensor using fly-eye lenses, e.g. arrangements of circular lenses
H04N 13/307 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
G02B 6/10 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
G02B 6/27 - Optical coupling means with polarisation selective and adjusting means
G02B 6/34 - Optical coupling means utilising prism or grating
G02F 1/139 - 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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H04N 13/229 - Image signal generators using stereoscopic image cameras using a single 2D image sensor using lenticular lenses, e.g. arrangements of cylindrical lenses
H04N 13/243 - Image signal generators using stereoscopic image cameras using three or more 2D image sensors
H04N 13/341 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
H04N 13/344 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
H04N 13/32 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using moving apertures or moving light sources
G02B 30/26 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type
G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
G02B 3/14 - Fluid-filled or evacuated lenses of variable focal length
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G06T 19/00 - Manipulating 3D models or images for computer graphics
H04N 13/243 - Image signal generators using stereoscopic image cameras using three or more 2D image sensors
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G02B 30/26 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type
G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
A method of displaying a light field via a light field display device, the light field display device comprising an array of light field display elements, the method comprising the steps of: (a) estimating a gaze direction, and thereby a foveal field of view, of at least one eye of at least one viewer of the light field display device; (b) displaying, via each display element and at a first angular sampling rate, at least part of a light field view image; and (c) displaying, via at least one of the display elements and at a second angular sampling rate, a partial foveal light field view image, the partial foveal light field view image covering at least part of the foveal field of view of the at least one eye, the second angular sampling rate higher than the first angular sampling rate.
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 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G06T 19/00 - Manipulating 3D models or images for computer graphics
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G02B 30/26 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type
G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
G02B 6/10 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
G02B 6/27 - Optical coupling means with polarisation selective and adjusting means
G02B 6/34 - Optical coupling means utilising prism or grating
G02F 1/139 - 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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
H04N 13/229 - Image signal generators using stereoscopic image cameras using a single 2D image sensor using lenticular lenses, e.g. arrangements of cylindrical lenses
H04N 13/243 - Image signal generators using stereoscopic image cameras using three or more 2D image sensors
H04N 13/341 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
H04N 13/344 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
A light field display device comprising at least one multiplexed light field display module, the multiplexed light field display module comprising a view image generator, a waveguide, and a set of shutters spatially distributed along the waveguide, the view image generator optically coupled to the waveguide, the waveguide optically coupled to each shutter, the view image generator operable to generate a set of beams of light from one of a set of view images, the waveguide configured to transmit the set of beams along its length via internal reflection, each shutter operable to be switched between a closed state and an open state, the closed state of the shutter configured to prevent the beams from escaping the waveguide, the open state of the shutter configured to allow the beams to escape the waveguide, the module operable to generate, over time, the set of beams from a different one of the set of view images, and to open, over time, a different subset of the set of shutters, thereby to allow the set of beams escaping from the subset to correspond to a different one of the set of view images.
H04N 13/341 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
H04N 13/344 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
H04N 13/315 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers the parallax barriers being time-variant
H04N 13/307 - Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
G02B 6/32 - Optical coupling means having lens focusing means
G02B 6/34 - Optical coupling means utilising prism or grating
G02F 1/295 - 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 position or the direction of light beams, i.e. deflection in an optical waveguide structure
G02B 6/27 - Optical coupling means with polarisation selective and adjusting means
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G02B 6/10 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
G02F 1/139 - 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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
G03B 35/24 - Stereoscopic photography by simultaneous viewing using apertured or refractive resolving means on screen or between screen and eye
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
A head-mounted light field display device, the device comprising at least one multiplexed light field display module adapted to face an eye of a viewer wearing the device, the multiplexed light field display module comprising a light field view image generator and a waveguide with a set of shutters, the light field view image generator operable to generate, over time, a set of beams of light from a different one of a set of light field view images, the shuttered waveguide operable to transmit the set of beams and to open, over time, a different subset of the set of shutters, the subset corresponding to a position associated with the view image, thereby to emit the set of beams via the subset, thereby to display to the viewer a time-varying optical light field representative of the set of view images.
G02F 1/13 - 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 liquid crystals, e.g. single liquid crystal display cells
G02F 1/139 - 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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
G02B 6/10 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
The present invention provides a light field display device (300) comprising an array of light field display elements (310) populating a display surface, each display element (310) comprising: a beam generator (522) for generating an output beam of light; a radiance modulator (524) for modulating the radiance of the beam over time; a focus modulator (530) for modulating the focus of the beam over time; and a scanner (504, 506) for scanning the beam across a two-dimensional angular field.
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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 light field display device comprising at least one multiplexed light field display module, the multiplexed light field display module comprising a view image generator, a waveguide, and a set of shutters spatially distributed along the waveguide, the view image generator optically coupled to the waveguide, the waveguide optically coupled to each shutter, the view image generator operable to generate a set of beams of light from one of a set of view images, the waveguide configured to transmit the set of beams along its length via internal reflection, each shutter operable to be switched between a closed state and an open state, the closed state of the shutter configured to prevent the beams from escaping the waveguide, the open state of the shutter configured to allow the beams to escape the waveguide, the module operable to generate, over time, the set of beams from a different one of the set of view images, and to open, over time, a different subset of the set of shutters, thereby to allow the set of beams escaping from the subset to correspond to a different one of the set of view images.
G02F 1/13 - 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 liquid crystals, e.g. single liquid crystal display cells
G02B 6/27 - Optical coupling means with polarisation selective and adjusting means
G02B 6/34 - Optical coupling means utilising prism or grating
G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
A virtual window system, the system comprising a light field camera device and a light field display device arranged back-to-back, the light field camera device configured to capture an input light field video stream, the light field display device configured to display an output light field video stream based on the input light field video stream.
H04N 13/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H04N 5/232 - Devices for controlling television cameras, e.g. remote control
G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
A near-eye light field display device for displaying a light field to at least one eye of a viewer, the device comprising an array of light field display elements, each display element adapted to display a time-varying light field view image, the display device configured to modulate the focus of the time-varying view image displayed by each display element according to a time-varying fixation depth of the at least one eye.
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
H04N 5/232 - Devices for controlling television cameras, e.g. remote control
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
A light field display device comprising an array of light field display elements, each display element comprising: a beam generator for generating an output beam of light; a radiance modulator for modulating the radiance of the beam over time; a focus modulator for modulating the focus of the beam over time; and a scanner for scanning the beam across a two-dimensional angular field, the scanner comprising a biaxial electromechanical scanning mirror comprising: a mirror, a platform, an inner frame, and an outer frame; the mirror attached to the platform via a post, the platform attached to the inner frame via a first pair of hinges, and the inner frame attached to the outer frame via a second pair of hinges; the first pair of hinges arranged substantially orthogonally to the second pair of hinges, thereby to allow biaxial movement of the mirror; the extent of the mirror larger than the extent of the inner frame.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02F 1/01 - 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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
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
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
The present invention provides a light field display device (300) comprising an array of light field display elements (310) populating a display surface, each display element (310) comprising: a beam generator (522) for generating an output beam of light; a radiance modulator (524) for modulating the radiance of the beam over time; a focus modulator (530) for modulating the focus of the beam over time; and a scanner (504, 506) for scanning the beam across a two-dimensional angular field.
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
G02F 1/11 - 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
G02F 1/17 - 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-absorption elements not provided for in groups
G02F 1/01 - 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
G02F 1/29 - 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 position or the direction of light beams, i.e. deflection
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G06T 15/00 - 3D [Three Dimensional] image rendering
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/02 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
The present invention provides a light field camera and display device (300) comprising an array of light field camera and display elements (310), each element (310) comprising: a scanner (504, 506) for scanning an input beam (600) and an output beam (500) across a two-dimensional angular field; an input focus modulator (612) for modulating the focus of the input beam (600) over time; a radiance sensor (604) for sensing the radiance of the input beam (600) over time; a radiance sampler (606) for sampling the radiance of the input beam (600) at discrete times; a beam generator (522) for generating the output beam (500); a radiance modulator (524) for modulating the radiance of the output beam (500) over time; and an output focus modulator (530) for modulating the focus of the output beam (500) over time.
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