Abstract

A lens assembly includes a lens unit and a first reflective element. The lens unit includes a plurality of lenses and the back focal length of the lens unit is longer than the total length of the lens unit. The first reflective element includes a first surface, a first prism surface, and a bottom surface, and the first prism surface connects the first surface and the bottom surface, respectively. The lens unit and the first reflective element are arranged in order from an object side along a first axis. A light from the object side enters the first reflective element from the first surface and then guided to the first prism surface.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only

Abstract

A lens assembly includes a first lens, a second lens, and a third lens. The first lens is a meniscus lens with positive refractive power and includes a convex surface facing an object side and a concave surface facing an image side. The second lens is with positive refractive power and includes a convex surface facing the image side. The third lens is with refractive power and includes a concave surface facing the image side. The first lens, the second lens, and the third lens are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only

Abstract

A lens device includes a lens module, a base, a first carrier, a second carrier, a first driving coil, a second driving coil, a first driving magnet, a second driving magnet, and a flexible circuit board. The first carrier is movably disposed on the base for carrying the lens module. The second carrier is movably disposed on the base for carrying the first carrier. The first and second coils are fixedly disposed on the base. The first and second driving magnets are fixedly disposed on the second carrier. The flexible circuit board is disposed on the base, is electrically connected to the first and second driving coils, and includes a first portion and a second portion. The first portion is farther from the object side than the second portion. The first driving coil is disposed on the first portion. The second driving coil is disposed on the second portion.

IPC Classes  ?

• G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image

Abstract

A ranging telescope includes an object lens unit, an image turning module, an eyepiece unit and a display. Ambient light passes through the object lens unit, the image turning module and the eyepiece unit to form an ambient light path. The display is configured to generate display light which passes through the image turning module and then through the eyepiece unit. The light flux regulator is disposed in the ambient light path and between the object lens unit and the eyepiece unit, for regulating flux of the ambient light or the display light that passes through the eyepiece unit, so as to regulate an intensity difference between the ambient light and the display light passing through the eyepiece unit.

IPC Classes  ?

• G01C 3/04 - Adaptation of rangefinders for combination with telescopes or binoculars
• G02B 5/00 - Optical elements other than lenses
• G02B 23/04 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer
• G02B 27/02 - Viewing or reading apparatus

Abstract

A lens assembly includes a first lens group, a second lens group, and a third lens group, all of which are arranged in order from an object side to an image side along an optical axis. The first lens group is with positive refractive power. The second lens group is with negative refractive power and includes at least two lenses. The third lens group is with positive refractive power and includes a 3-1 lens, a 3-2 lens, a 3-3 lens, and a 3-4 lens. Three lens groups are with refractive power. The 3-1 lens is a biconvex lens with positive refractive power and includes a convex surface facing the object side and another convex surface facing the image side. The 3-3 lens includes a concave surface facing the image side. Two lenses closest to the image side are meniscus lenses among the second lens group and the third lens group.

IPC Classes  ?

• G02B 9/14 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – +

Abstract

A wide-angle lens assembly includes a first, a second, a third, a fourth, a fifth, a sixth, a seventh, and an eighth lenses, all of which are arranged in order from an object side to an image side along an optical axis and are spaced apart with air gaps formed therebetween. The first lens is a meniscus lens with negative refractive power. The second lens is a meniscus lens with refractive power and includes a concave surface facing the object side and a convex surface facing the image side. The third lens and the fourth lens are with positive refractive power. The fifth lens is with negative refractive power. The sixth lens is with refractive power. The seventh lens is with positive refractive power and includes a convex surface facing the image side. The eighth lens is with refractive power and includes a convex surface facing the object side.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"

Abstract

A lighting module includes a lighting unit, a cylindrical optical element, a supporting unit, and a base. The supporting unit connects the base and a part of the supporting unit is higher than a junction of the base and the supporting unit. The lighting unit is disposed on the base and includes a lighting surface emitting a light beam. The cylindrical optical element includes an incident surface and both ends of the cylindrical optical element are respectively connected to the supporting unit making the incident surface facing the lighting surface and having an interval from the lighting unit to the incident surface, and the light beam enters the cylindrical optical element from the incident surface. The lighting module satisfies the following condition: 2≤D/E≤6; wherein D is a diameter of the cylindrical optical element and E is the interval from the lighting unit to the incident surface.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 26/12 - Scanning systems using multifaceted mirrors

Abstract

A lens assembly includes a first lens, a second lens, and a third lens. The first lens is with refractive power. The second lens is with refractive power. The third lens is with negative refractive power and includes a concave surface facing an image side. The first lens, the second lens, and the third lens are arranged in order from an object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only
• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only

Abstract

A lens assembly includes a first lens, a second lens, a third lens, and a fourth lens. The first lens is with negative refractive power. The second lens is with positive refractive power. The third lens is with refractive power. The fourth lens is with refractive power. The first lens, the second lens, the third lens, and the fourth lens are arranged in order from an object side to an image side along an optical axis. The lens assembly satisfies at least one of the following conditions: 3≤f3/f≤5.5; 0.2≤f/AAG≤0.3; 0.72≤f/BFL≤1.04.

IPC Classes  ?

• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
• G02B 3/00 - Simple or compound lenses

Abstract

A wide-angle lens assembly includes a first, a second, a third, a fourth, a fifth, a sixth, a seventh, and an eighth lenses, all of which are orderly arranged from an object side to an image side along an optical axis. The first, fourth, fifth, seventh, and eighth lenses are with refractive power. The second, third, and sixth lenses are with positive refractive power. The wide-angle lens assembly satisfies at least one of the following conditions: 0.8≤f/D22≤3; 0.025 degrees−1≤1/α≤0.3 degrees−1; 0.03 degrees−1≤1/β≤0.35 degrees−1; 0.5≤α/β≤30; wherein f is an effective focal length of the wide-angle lens assembly, D22 is an effective optical diameter of an image side surface of the second lens, α is a maximum tangent angle of a first cemented surface, and β is a maximum tangent angle of a second cemented surface.

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

An optical system and the adjusting device thereof. The optical system includes an optical device. The adjusting device is configured for adjusting a location of a center of the optical device. The adjusting device includes a first adjusting element which is movable along a first axis and is propped against the optical device, a second adjusting element which is movable along a second axis and is propped against the optical device, and a third adjusting element which is movable along a third axis and is propped against the optical device. The center of the optical device is spaced apart from where the first axis and the second axis meet and/or where the first axis and the third axis meet.

IPC Classes  ?

• G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements

Abstract

Aiming devices and methods thereof are provided. First, a ranging unit is used to perform a ranging operation on an object to obtain a corresponding object distance. Then, a plurality of compensation positions are displayed on a display unit of an aiming device, and a ballistic compensation program is used to calculate a target position among the compensation positions according to the object distance. When the aiming device moves, the number of the compensation positions displayed on the display unit will be changed. It is to determine whether the aiming device is located at the target position. When the aiming device is at the target position, the display unit will only display the target position among the compensation positions or no longer performs the compensation.

IPC Classes  ?

• F41G 3/06 - Aiming or laying means with rangefinder
• F41G 3/12 - Aiming or laying means with means for compensating for muzzle velocity or powder temperature

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, and a fourth lens. The first lens is a meniscus lens with negative refractive power and includes a convex surface facing an object side and a concave surface facing an image side. The second lens is with refractive power and includes a concave surface facing the image side. The third lens is a biconvex lens with positive refractive power and includes a convex surface facing the object side and another convex surface facing the image side. The fourth lens is with refractive power. The first lens, the second lens, the third lens, and the fourth lens are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

An optical device and the prism module thereof are provided. The prism module includes a first prism, a second prism, and a third prism. The second prism is disposed beside the first prism. The third prism is adhered to the second prism. First light enters the first prism, is reflected plural times in the first prism, enters the second prism, and is emitted from the second prism. Second light enters the second prism, is reflected plural times in the second prism, and is emitted from the second prism. Third light sequentially passes through the third prism and the second prism, enters the first prism, is reflected plural times in the first prism, and is emitted from the first prism.

IPC Classes  ?

• G02B 23/02 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors
• G02B 5/04 - Prisms

Abstract

An illumination module includes a light source and a first optical element. The illumination module is set in an optical apparatus. The light source includes a plurality of lighting units and each lighting unit emits a light beam, wherein the light beam includes a colored light and the light source emits a plurality of light beams. The first optical element includes a plurality of optical units.

IPC Classes  ?

• G03B 21/20 - Lamp housings
• G02B 27/01 - Head-up displays

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with negative refractive power. The second lens is with refractive power. The third lens is with positive refractive power and includes a convex surface facing an image side. The fourth lens is with positive refractive power and includes a convex surface facing an object side. The fifth lens is with refractive power. The sixth lens is with refractive power. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only

Abstract

A lens device includes a base, a lens module, a first carrier, a second carrier and a resilient element. The lens module includes an optical axis extended in a first direction. The first carrier is disposed on the base to carry the lens module. The second carrier is disposed on the base to carry the first carrier. The resilient element is flexible and connects the second carrier and the base. The first carrier is movable with respect to the second carrier in the first direction. The second carrier carrying the first carrier is movable with respect to the base in a second direction and a third direction. The first direction is perpendicular to the second direction and the third direction.

IPC Classes  ?

• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
• G03B 13/36 - Autofocus systems
• G03B 5/00 - Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers

Abstract

A lens assembly includes a lens unit and a first reflective element. The lens unit includes a plurality of lenses and the back focal length of the lens unit is longer than the total length of the lens unit. The first reflective element includes a first surface, a first prism surface, and a bottom surface, and the first prism surface connects the first surface and the bottom surface, respectively. The lens unit and the first reflective element are arranged in order from an object side along a first axis. A light from the object side enters the first reflective element from the first surface and then guided to the first prism surface.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only

Abstract

A lens device includes a lens module, an image forming unit and a light path turning module. The lens module includes one or plural lenses. The light path turning module is disposed between the lens module and the image forming unit. The light exiting from the lens module is reflected at least twice by the light path turning module.

IPC Classes  ?

• G02B 23/08 - Periscopes
• G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
• G02B 3/00 - Simple or compound lenses
• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 23/06 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors having a focusing action, e.g. parabolic mirror

Abstract

An optical device and the prism module thereof are provided. The prism module includes a first prism, a second prism, a film and a light guide unit. The film is disposed between the first prism and the second prism. First visible light enters the first prism, passes through the film, enters the second prism, exits from the second prism, reaches the light guide unit, and is reflected to user's eyes by the light guide unit. Also, second visible light passes through the light guide and reaches user's eyes.

IPC Classes  ?

• G02B 23/06 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors having a focusing action, e.g. parabolic mirror
• G02B 5/04 - Prisms

Abstract

An optical device and the prism module thereof are provided. The prism module includes a first prism, a second prism, a third prism and a fourth prism. The second prism is disposed beside the first prism. The second prism is attached to the third prism and the fourth prism. In operation, first visible light enters the first prism, is reflected plural times in the first prism, enters the second prism and then the fourth prism, is reflected at least one time in the fourth prism, returns to the second prism, is reflected at least one time in the second prism, enters the third prism and exits from the third prism. Also, second visible light enters the third prism, is reflected plural times in the third prism and exits from the third prism.

IPC Classes  ?

• G02B 17/04 - Catoptric systems, e.g. image erecting and reversing system using prisms only
• G01C 3/08 - Use of electric radiation detectors

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens is with negative refractive power and includes a concave surface facing an object side. The second lens is a meniscus lens with refractive power. The third lens is a meniscus lens with positive refractive power. The fourth lens is with refractive power. The fifth lens is with refractive power. The sixth lens is with refractive power. The seventh lens is with positive refractive power. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are arranged in order from the object side to an image side along an optical axis.

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

A lens assembly includes a first lens, a second lens, a third lens, and a cover glass. The first lens is with positive refractive power and includes a convex surface facing an image side. The second lens is a meniscus lens with refractive power. The third lens is with positive refractive power and includes a convex surface facing the image side. The first lens, the second lens, the third lens, and the cover glass are arranged in order from the image side to an object side along a first optical axis.

IPC Classes  ?

• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• H04N 23/53 - Constructional details of electronic viewfinders, e.g. rotatable or detachable

Abstract

A lens assembly includes a first lens group, a second lens group, and a third lens group, all of which are arranged in order from an object side to an image side along an optical axis. The first lens group is with positive refractive power and includes at least four lenses, among which the lens closest to the object side includes a convex surface facing the object side, and the lens closest to the image side includes a convex surface facing the image side. The second lens group is with negative refractive power and includes a 2-1 lens and a 2-2 lens, wherein the 2-2 lens includes a convex surface facing the image side. The third lens group is with negative refractive power and includes a 3-1 lens, wherein the 3-1 lens is a meniscus lens with negative refractive power.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A lens assembly includes a first lens, a second lens, and a third lens arranged sequentially from an object side to an image side along an optical axis. The first lens has positive refractive power. The second lens has a convex surface facing the image side and negative refractive power. The third lens has a convex surface facing the object side and negative refractive power. The lens assembly satisfies at least one of the following conditions: 2

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power. The second lens is a meniscus lens with positive refractive power and includes a concave surface facing the object side and a convex surface facing the image side. The third lens is with positive refractive power and includes a convex surface facing the object side. The fourth lens is with positive refractive power. The fifth lens is with negative refractive power. The wide-angle lens assembly satisfies: −3

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only

Abstract

−1; 0.35≤|fG4/fG3|≤0.75; 0.15≤fG1/f≤1.6; wherein LG4D is an effective optical diameter of the fourth lens group, LG1D is an effective optical diameter of the first lens group, fG1 is an effective focal length of the first lens group, fG3 is an effective focal length of the third lens group, fG4 is an effective focal length of the fourth lens group, and f is an effective focal length of the objective lens module.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 15/173 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged + – +

Abstract

A lens module includes a base, a movable lens group, a magnet portion and a coil portion. The movable lens group is movable in a first direction and has an optical axis in parallel to the first direction. The magnet portion is disposed on one of the base and the movable lens group. The coil portion is disposed on the other of the base and the movable lens group and is disposed corresponding to the magnet portion.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
• H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

A lens device includes a lens group unit, a guiding unit, a transmission unit and a driving unit. The guiding unit is connected to the lens group unit for guiding the lens group unit to move in a first direction or in a second direction. The transmission unit includes a fixing element. The driving unit is connected to the transmission unit so as to output power for driving the lens group unit through the transmission unit to move in the first direction X or in the second direction. The fixing element includes a body portion and a bent portion, and the bent portion extends from the body portion to form a space between the fixing element and the lens group unit.

IPC Classes  ?

• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses

Abstract

A lens assembly includes a first lens group, a second lens group, and a third lens group, all of which are arranged in order from a first side to a second side along an optical axis. The first lens group is with positive refractive power. The second lens group is with positive refractive power. The third lens group is with positive refractive power. The first lens group is fixed, the second lens group can move along the optical axis, and the third lens group can move along the optical axis, so that the lens assembly is zoomed from a wide-angle end to a telephoto end to change an effective focal length.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 15/15 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective compensation by means of only one movement or by means of only linearly related movements, e.g. optical compensation
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

123 is an effective focal length of a combination of the first lens, the second lens, and the third lens.

IPC Classes  ?

• G01C 3/08 - Use of electric radiation detectors
• G02B 5/04 - Prisms
• G02B 27/14 - Beam splitting or combining systems operating by reflection only

Abstract

In a sight device, an objective lens unit is disposed at an end of a housing. An ocular lens unit is disposed at another end of the housing and opposite to the objective lens unit. An erector unit is disposed between the objective lens unit and the ocular lens unit. A adjusting unit is movably disposed on the housing and radially propped against the erector unit to adjust the erector unit. A light emitting unit is disposed on the erector unit and includes a light source for emitting a light beam to an object. A light receiving unit is disposed on the erector unit and includes a light sensor for receiving the light beam reflected by the object. In any cross section of the housing, any point on the external surface of the housing is approximately equally distant from the second central axis.

IPC Classes  ?

• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41G 1/473 - Sighting devices for particular applications for lead-indicating or range-finding, e.g. for use with rifles or shotguns
• F41G 3/06 - Aiming or laying means with rangefinder
• G02B 23/14 - Viewfinders
• G02B 23/10 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator

Abstract

A lens assembly includes a first, second, third, and fourth in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens is with negative refractive power. The third lens is with positive refractive power. The fourth lens is a meniscus lens with refractive power. The lens assembly satisfies at least one of following conditions: −0.1≤R11/R42≤0.53; 2≤TTL/SD4≤7; 0.1≤SD1/f≤0.6.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only

Abstract

A lens device includes a base, a lens module, a driving device, a plurality of positioning elements, a dragging element and a counterweight block. The lens module is disposed in the base and includes at least one movable lens group that is movable in a first direction. The driving device is configured to drive the movable lens group to move. The positioning elements are spaced in the first direction and fixed to the base. The dragging element is put around the positioning elements. The counterweight block and the movable lens group are connected to the dragging element.

IPC Classes  ?

• G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The first lens is with negative refractive power and includes a concave surface facing an object side. The second lens is with refractive power. The third lens is with refractive power. The fourth lens is with refractive power. The fifth lens is with negative refractive power. The sixth lens is with positive refractive power and includes a convex surface facing an image side. The seventh lens is with positive refractive power. The eighth lens is with negative refractive power and includes a concave surface facing the object side. The first, second, third, fourth, fifth, sixth, seventh, and eighth lenses are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

A lens device includes at least one frame, at least one lens, at least one optical element and an image forming assembly. The lens is disposed in the frame and has an optical axis extending in a first direction. The optical element includes at least one non-planar surface. The light coming from an object side propagates through the lens and the non-planar surface to the image forming assembly. The lens is obtained from cutting an upper portion and a lower portion of a circular lens along planes in parallel to the first direction and a second direction.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/14 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – +
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses

Abstract

A lens device includes a first lens module, an image sensor and a first light path turning module. The first lens module includes plurality of lenses. The first light path turning module is configured to transmit a light beam passing through the first lens module to the image sensor by exactly three or four reflections. The first light path turning module includes three or four reflecting surfaces on which the reflections occur. All the reflecting surfaces are plane surfaces. The first light path turning module includes no free form surface. All the surfaces on which the light beam is reflected are plane surfaces, wherein the plane surfaces are flat and are different from freeform surfaces.

IPC Classes  ?

• H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• G02B 5/04 - Prisms
• G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system
• H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

Abstract

A wide-angle lens assembly, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, satisfies: 5.2≤(CT1+CT2)/CT4≤7.7; 1≤|R61/R52|≤5; wherein CT1 is an interval from an object side surface of the first lens to an image side surface of the first lens along an optical axis, CT2 is an interval from an object side surface of the second lens to an image side surface of the second lens along the optical axis, CT4 is an interval from an object side surface of the fourth lens to an image side surface of the fourth lens along the optical axis, R61 is a radius of curvature of an object side surface of the sixth lens, and R52 is a radius of curvature of an image side surface of the fifth lens.

IPC Classes  ?

• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

A lens device includes a base, a guiding unit, a plurality of lens groups and a flexible printed circuit board. The guiding unit is disposed on the base in a first direction. The plurality of lens groups are disposed on the base and include at least one movable lens group that is movable along the guiding unit. The flexible printed circuit board is fixed to the movable printed circuit board, and bent in the first direction to form a bent portion. The guiding unit is disposed in contact with a top of the bent portion of the flexible printed circuit board.

IPC Classes  ?

• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

A compensating mechanism includes a base unit, a transmission unit, an adjusting cap and a rotation setting unit. The base unit includes a grooved portion that includes a first groove and a second groove communicated with the first groove. The second groove includes a first end and a second end opposite to the first end. The first end is connected to the first groove. The first end and the second end have a height difference therebetween in an axial direction of the base unit. The transmission unit is disposed on the base unit. The adjusting cap is connected to the transmission unit. The adjusting cap drives the transmission unit to rotate when the adjusting cap is rotated. The rotation setting unit includes a movable element that is movably disposed on the transmission unit to be connected to the grooved element or to be separated from the grooved element.

IPC Classes  ?

• G02B 23/16 - HousingsCapsMountingsSupports, e.g. with counterweight
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses

Abstract

Provided is a wide-angle lens assembly including, in an order from an object side to an image side along an optical axis, a first lens element with negative refractive power, having an image-side surface being concave; a second lens element with negative refractive power, having an image-side surface being concave; a third lens element with negative refractive power; a fourth lens element with positive refractive power; a fifth lens element with a refractive power; a sixth lens element with positive refractive power, having an object-side surface being convex and an image-side surface being convex; a seventh lens element with negative refractive power; and an eighth lens element with positive refractive power, having an object-side surface being convex and an image-side surface being convex. The wide-angle lens assembly is characterized by small size, excellent resolution and great environmental tolerance.

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

A lens driving device and a driving method thereof are provided. The lens driving device includes a lens frame, a magnetic group, a driving element group and a control device. The lens frame carries at least one optical element. The magnetic group includes a plurality of pairs of magnetic elements. The driving element group includes at least two coils. The control device supplies power to the driving element group so that the lens frame is driven by the driving element group to move. The driving element group is disposed on the lens frame, and the amount of the lens frame is equal to that of the driving element group. The control device in a first driving state supplies the power to the coils in sequence so that the driving element group is moved from a pair of magnetic elements to another pair of magnetic elements.

IPC Classes  ?

• G03B 5/02 - Lateral adjustment of lens
• H02K 41/035 - DC motorsUnipolar motors

Abstract

A sight includes a compensating mechanism. The compensating mechanism includes a base unit, a displaying unit, an adjusting cap and a first transmission unit. The displaying unit is disposed on the base unit and includes a mark. The adjusting cap is disposed outside the displaying unit and includes an information displaying portion for showing the mark. The first transmission unit is connected to the adjusting cap and the displaying unit. The adjusting cap is connected to the transmission unit and includes a groove. When the adjusting cap is rotated with respect to the base unit about an axis, the information displaying portion is synchronously rotated with the adjusting cap and the first transmission unit drives the displaying unit to move along the axis so as to change the mark shown by the information displaying portion.

IPC Classes  ?

• G02B 23/00 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41G 3/08 - Aiming or laying means with means for compensating for speed, direction, temperature, pressure, or humidity of the atmosphere

Abstract

A sight includes a main body, an erecting unit and a compensating mechanism. The compensating mechanism includes a fixing unit, a cover and an switching unit. A compensating mechanism for a sight includes a base unit, a transmission unit, an adjusting cap, a movable unit and a lock unit. The adjusting cap is located in a first position when the adjusting cap is locked by the lock unit. The adjusting cap in the first position can be rotated in a second direction or in a third direction opposite to the second direction when the lock unit is moved in a first direction to release the adjusting cap. The adjusting cap stops in a second position when the adjusting cap is rotated in the third direction so that the movable unit is propped against an end of a groove of the adjusting cap.

IPC Classes  ?

• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41G 1/16 - Adjusting mechanisms thereforMountings therefor

Abstract

An optical device includes a range finding module. The range finding module includes a first light condenser unit, a light emitting unit and a light receiving unit. The first light condenser unit defines an optical axis and a hole disposed along the optical axis. The first light condenser unit, the light emitting unit and the light receiving unit are sequentially arranged along the optical axis. The light is emitted by the light emitting unit, passes through the hole, reaches an object, is reflected by the object, is converged by the first light condenser unit and is received by the light receiving unit to generate an electrical signal.

IPC Classes  ?

• G02B 19/00 - Condensers
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
• G02B 27/30 - Collimators

Abstract

A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a reflective element. The first lens group is with refractive power. The second lens group is with positive refractive power. The third lens group is with positive refractive power. The fourth lens group is with refractive power. The reflective element includes a reflective surface. A light from an object sequentially passes through the first lens group, the second lens group, the third lens group, and the fourth lens group to an image side along an axis. The reflective element is disposed between an object side and the image side along the axis. Intervals of the lens groups are changeable when the lens assembly zooms from a wide-angle end to a telephoto end.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• 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

Abstract

Transfer apparatuses and methods thereof are provided. First, a laser ranging unit is used to perform a first scanning ranging operation for an environment to obtain a laser scanning ranging result of the environment. Then, a displacement calculation unit is used to detect displacement information of a transfer apparatus. According to the laser scanning ranging result and the displacement information, map information of the environment is established and positioning information of the transfer apparatus in the environment is determined, wherein the map information includes information of a charging device. The map information and the positioning information of the transfer apparatus is transmitted to an application device via a connection interface. The connection interface is used to connect and fix the application device, and is electrically connected to the application device, wherein the transfer apparatus receives a charging operation instruction transmitted from the application device via the connection interface.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions
• G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
• G01S 17/931 - Lidar systems, specially adapted for specific applications for anti-collision purposes of land vehicles
• G06T 7/579 - Depth or shape recovery from multiple images from motion

Abstract

A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, and a reflective element. The first lens group is with positive refractive power. The second lens group is with negative refractive power. The third lens group is with positive refractive power. The fourth lens group is with negative refractive power. The fifth lens group is with positive refractive power. The reflective element includes a reflective surface. A light from an object side sequentially passes through the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group to a second side. The reflective element is disposed between a first side and the second side. Intervals of the lens groups are changeable, so that the lens assembly can change the effective focal length.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is a meniscus lens with negative refractive power. The second lens is with positive refractive power and includes a convex surface facing an image side. The third lens is a meniscus lens with positive refractive power. The fourth lens is with positive refractive power. The fifth lens is with refractive power and includes a convex surface facing an object side. The first lens, the second lens, the third lens, the fourth lens, and the fifth lens are arranged in order from an object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only

Abstract

An earpiece device includes a housing, a sound generator and a first blocker. The sound generator includes a first loudspeaker which includes a vibrating board. The vibrating board includes a first sound generating surface and a second sound generating surface. The first sound generating surface is disposed towards the exterior of the housing. The second sound generating surface is disposed opposite to the first sound generating surface. The first blocker includes a first portion, a second portion, a first side surface and a second side surface. The first side surface is disposed towards the first sound generating surface. The second side surface is disposed opposite to the first side surface. The first portion is disposed between the first side surface and the second side surface and is fixed to the cover plate. The second portion is disposed opposite to the first portion and is distant from the cover plate.

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 1/10 - EarpiecesAttachments therefor
• G10K 11/30 - Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with positive refractive power and includes a convex surface facing an object side. The second lens is with negative refractive power. The third lens is a biconvex lens with positive refractive power and includes a convex surface facing the object side and another convex surface facing an image side. The fourth lens is with negative refractive power. The fifth lens is with positive refractive power. The sixth lens is with positive refractive power and includes a convex surface facing the image side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only

Abstract

An image capture apparatus and a zoom lens are provided. The zoom lens in accordance with an exemplary embodiment of the invention includes a mount, a guide unit, a plurality of lens groups and a driving device. The guide unit is disposed in the mount in a first direction. The lens groups are disposed in the mount and include at least one movable lens group which can be moved along the guide unit. The driving device is configured for driving the movable lens group. The driving device includes magnets and coils. The magnets are fixed to one of the movable lens group and the mount, while the coils are fixed to the other of the movable lens group and the mount. The magnets and/or the coils are arranged in the first direction.

IPC Classes  ?

• G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
• H04N 5/232 - Devices for controlling television cameras, e.g. remote control
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures

Abstract

A lens module includes a plurality of lenses, an annular body and a reflective element. The reflective element, the lenses and the annular are sequentially arranged along an optical axis from an object side to an image side. The lenses include a first lens that is disposed closest to the object side, and a second lens that is disposed closest to the image side. The reflective element is disposed between the object side and the first lens. The annular body is disposed between the object side and the first lens, between the lenses, or between the second lens and the image side. The lens module satisfies 0.5 mm

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 5/08 - Mirrors

Abstract

A headphone device includes a housing, a sound generator and a tube. The housing includes a main body and a cover plate. The cover plate includes a first surface and a second surface. The first surface is disposed towards the main body and connected to the main body to form an internal space. The second surface is disposed opposite to the first surface. The sound generator is disposed in the internal space. The tube includes a tubular body, a first end and a second end. The tubular body is disposed between the first end and the second end. The tubular body has a cross section which is in a closed shape. The second surface of the cover plate is disposed towards the tubular body. The tubular body and the second surface are disposed in parallel or have an included angle less than twenty degrees.

IPC Classes  ?

• H04R 25/00 - Deaf-aid sets
• H04R 1/10 - EarpiecesAttachments therefor

Abstract

A sight adjusting mechanism includes an adjusting knob, an adjusting ring member, an adjusting bolt and a base. An upper-side portion of the adjusting bolt enters a through hole of the adjusting ring member to couple with the adjusting ring member. A lower-side portion of the adjusting bolt enters a through hole of the base to couple with the base. Thus, the adjusting bolt can only move along an axis. The mechanism is implemented without mechanical feedback, and thus rotating angles are improved with great precision. Also, the mechanism includes a limiting member disposed in a penetrating hole of the adjusting knob and a positioning ring mounted on the adjusting ring member. By cooperation of the limiting member and the positioning ring, an angle at which the adjusting knob can rotate is defined. A fine adjustment and a quick adjustment of a sight point are implemented.

IPC Classes  ?

• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41G 1/26 - Adjusting mechanisms thereforMountings therefor screw
• F41G 11/00 - Details of sighting or aiming apparatusAccessories

Abstract

A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, a sixth lens group, and a first reflective element. The first and third lens groups are with negative refractive power. The second and fourth lens groups are with positive refractive power. The fifth and sixth lens groups are with refractive power. The first, second, third, fourth, fifth, and sixth lens groups are arranged in order from a first side to a second side along an axis. The first reflective element includes a first reflective surface. A light from the first side sequentially passes through the first, second, third, fourth, fifth, and sixth lens groups to the second side. The first reflective element is disposed between the first lens group and the sixth lens group.

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 17/08 - Catadioptric systems
• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
• G03B 17/17 - Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera

Abstract

Apparatuses for detecting distance and methods thereof are provided. First, a first distance measurement mode and a second distance measurement mode can be executed by using an apparatus having a distance measurement capability, and the apparatus has an anti-vibration module. When the first distance measurement mode is executed, the anti-vibration module is electrically connected to perform distance measurement, and a first distance measurement result is obtained, wherein the maximum movement compensation amount of the anti-vibration module is a first value. When the second distance measurement mode is executed, the anti-vibration module is electrically connected to perform distance measurement, and a second distance measurement result is obtained, wherein the maximum movement compensation amount of the anti-vibration module is a second value, and the first value is greater than the second value.

IPC Classes  ?

• G01S 7/497 - Means for monitoring or calibrating
• G01S 17/08 - Systems determining position data of a target for measuring distance only

Abstract

A lens assembly comprises a first lens, a second lens, a third lens, a fourth lens, a sixth lens, a seventh lens and an eighth lens which are arranged sequentially from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power and comprises a convex surface facing an object side and a concave surface facing an image side. The second lens is with negative refractive power. The third lens is with refractive power. The fourth lens is with positive refractive power. The fifth lens is with positive refractive power and comprises a convex surface facing the image side. The sixth lens is with refractive power. The seventh lens is with positive refractive power. The eighth lens is with refractive negative power and comprises a concave surface facing the object side.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A beam splitting and combining device includes a first prism, a second prism and a first optical film. The first prism includes a first surface, a second surface and a third surface. The second prism includes a fourth surface, a fifth surface and a sixth surface. The fifth surface and the second surface are attached to each other. The first optical film is formed between the second surface and the fifth surface by coating. A beam in a first range of wavelengths is configured to pass through the first surface, the second surface, the first optical film, the fifth surface and the sixth surface in order or in reverse order, or is configured to pass through the first surface and the third surface in order or in reverse order.

IPC Classes  ?

• G02B 27/10 - Beam splitting or combining systems
• G03B 21/20 - Lamp housings
• G02B 27/14 - Beam splitting or combining systems operating by reflection only
• G02B 5/04 - Prisms
• H04N 23/16 - Optical arrangements associated therewith, e.g. for beam-splitting or for colour correction

Abstract

A scope includes an objective lens system having refractive power, a relay lens system having refractive power, and an eyepiece system having refractive power. The relay lens system includes a first, a second, and a third lens groups. The second lens group includes a II-2-1 lens and a II-2-2 lens, and both of which are cemented. The third lens group includes a II-3-1 lens having a convex surface facing an object side and a II-3-2 lens having a convex surface facing an image side, and both of which are cemented. The second lens group and the third lens group can move along an optical axis to change a magnification of the relay lens system and thereby change a magnification of the scope. The objective lens system, the relay lens system, and the eyepiece system are arranged in order from the object side to the image side along the optical axis.

IPC Classes  ?

• G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
• G02B 9/14 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – +
• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
• G02B 9/36 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only arranged + –– +
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 25/00 - EyepiecesMagnifying glasses
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first, second, seventh, and eighth lenses are with refractive power. The third lens is with negative refractive power and includes a concave surface facing the object side. The fourth lens is with positive refractive power. The fifth lens is with positive refractive power and includes a convex surface facing the object side. The sixth lens is with positive refractive power and includes a convex surface facing the image side. The ninth lens is with positive refractive power and includes a convex surface facing the object side. An air gap is disposed between the sixth lens and the seventh lens.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

A lens assembly includes a first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth lenses. The first lens is a biconvex lens with positive refractive power. The second lens is with negative refractive power and includes a concave surface facing the object side. The third lens is a biconvex with positive refractive power and includes a convex surface facing the object side and another convex surface facing the image side. The fifth lens is a biconcave lens with negative refractive power. The fourth, sixth, and ninth lenses are with positive refractive power. The seventh lens is with positive refractive power. The eighth lens is with negative refractive power. The first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth lenses are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

The present invention provides an image capturing system, which includes: a plurality of cameras, a plurality of microphones, an audio processing unit, a video processing unit, and a data processing device. The audio processing unit detects the orientation of the main audio source according to an audio signal received in a space by the microphones. The video processing unit stitches a plurality of images obtained by the cameras into a composite image. The data processing device detects a first object from the composite image according to the orientation of the main audio source.

IPC Classes  ?

• H04N 7/15 - Conference systems
• H04N 5/265 - Mixing
• H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• H04N 5/247 - Arrangement of television cameras
• G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a patternLocating or processing of specific regions to guide the detection or recognition

Abstract

4567 is an effective focal length of a combination of the fourth, fifth, sixth, and seventh lenses.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

The present application provides an aperture assembly. The aperture assembly is used in an optical lens system. The aperture assembly includes a plate including a hollow portion and a non-hollow portion. The hollow portion is configured to define an aperture of the optical lens system, wherein the contour of the hollow portion has a non-circular shape. The aperture assembly can prevent the size of the aperture from being reduced as the size of the plate is reduced in a case that a circular aperture is applied to the plate. The present application also realizes an aperture adjustment for a non-circular aperture.

IPC Classes  ?

• G02B 5/00 - Optical elements other than lenses

Abstract

A lens assembly includes a first, second, third, stop, fourth, fifth, sixth, and seventh in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens is with negative refractive power. The third lens is with positive refractive power and includes a convex surface facing the image side. The fourth lens is with refractive power and includes a convex surface facing the image side. The fifth lens is with positive refractive power and includes a convex surface facing the object side. The sixth lens is a biconcave lens with negative refractive power. The seventh lens is with refractive power and includes a convex surface facing the image side. The lens assembly satisfies: 4.3≤TTL/BFL≤5.3.

IPC Classes  ?

• G02B 9/10 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having two components only one + and one – component
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

A lens device includes at least one lens group, a first reflective element, and a second reflective element. The lens group enters the lens device from a first side to a second side along an optical path for imaging. The lens group is with refractive power. The first reflective element is disposed between the first side and the lens group, wherein the first reflective element includes a first reflective surface. The second reflective element is disposed between the first reflective surface and the second side, wherein the second reflective element includes a second reflective surface. The lens device satisfies the following condition: 22 mm

IPC Classes  ?

• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 5/08 - Mirrors
• G02B 5/04 - Prisms

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has negative refractive power and includes a concave surface facing an image side. The second lens has positive refractive power and includes a convex surface facing an object side. The third lens has positive refractive power. The fourth lens has negative refractive power. The fifth lens is a meniscus lens with positive refractive power. The sixth lens has positive refractive power and includes a concave surface facing the image side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from the object side to the image side along an optical axis. An air gap is between the third lens and the fourth lens.

IPC Classes  ?

• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

A camera device includes a plurality of lenses and an annular body. The annular body is disposed between the object side and the plurality of lenses, between the plurality of lenses, or between the plurality of lenses and the image side. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, the annular main body is disposed between the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form a hole. The camera device satisfies: Dx>Dy; where Dx is a maximum dimension of the hole through which the optical axis passes, and Dy is a minimum dimension of the hole through which the optical axis passes.

IPC Classes  ?

• G02B 5/00 - Optical elements other than lenses
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

A lens device includes a lens module, a light splitting module and an image sensing module. The lens module includes an optical axis extended in a first direction. The light splitting module is configured to split light coming from the lens module into at least a first light beam and a second light beam, wherein the first light beam and the second light beam have wavelengths of different ranges. The image sensing module includes a plurality of image sensing units corresponding to the first light beam and the second light beam respectively, wherein the image sensing units are disposed at different sides of the light splitting module to sense the corresponding light beam.

IPC Classes  ?

• G02B 27/10 - Beam splitting or combining systems
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 5/04 - Prisms
• H04N 25/40 - Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled

Abstract

A lens assembly includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group, all of which are arranged in order from a first side to a second side along an axis. The first lens group is with negative refractive power. The second lens group is with positive refractive power. The third lens group is with refractive power. The fourth lens group is with refractive power. The fifth lens group is with refractive power. The lens assembly further includes a first reflective element disposed between the first lens group and the fifth lens group, wherein the first reflective element includes a first reflective surface.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a reflective element. The first lens is with refractive power and includes a concave surface facing an object side along an axis. The second lens is with refractive power and includes a convex surface facing the object side along the axis. The third, fourth, and fifth lenses are with refractive power. The reflective element includes a reflective surface. The first, second, third, fourth, and fifth lenses are arranged in order from the object side to an image side along the axis. The reflective element is disposed between the first lens and the fifth lens. The lens assembly satisfies: 2 mm

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only

Abstract

A wide-angle lens assembly includes a first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth lenses. The first and second lenses are meniscus lenses with negative refractive power. The third and seventh lenses are with negative refractive power. The sixth and tenth lenses are with positive refractive power. The fourth lens is a meniscus lens with positive refractive power. The fifth lens includes a convex surface facing an object side. The eighth lens includes a convex surface facing the object side. The ninth lens includes a concave surface facing the object side and a convex surface facing an image side. The first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth lenses are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components

Abstract

21 is a radius of curvature of an object side surface of the second lens and f is an effective focal length of the lens assembly.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A relay optical system (RL) of this telescope has arranged therein, in the following order from the object side: a first lens group (G1) having positive refractive power; a second lens group (G2) having positive refractive power; a third lens group (G3) having positive refractive power; a fourth lens group (G4) having negative refractive power; and a fifth lens group (G5) having positive refractive power, wherein the magnification of the telescope can be changed by causing an image formed on a first image plane (IM1) to be re-formed on a second image plane (IM2) and further causing the second lens group (G2) and the third lens group (G3) to move along the optical axis, and thereby varying the image-forming magnification of the relay optical system (RL).

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only
• G02B 15/04 - Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
• G02B 23/00 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices
• G02B 25/00 - EyepiecesMagnifying glasses

Abstract

An optical device includes an objective module, a prism module and an ocular module. The prism module includes a first prism, a second prism and a first coating. The prism module is disposed between the objective module and the ocular module. A first light beam emitted by an object sequentially passes through the objective module, the prism module and the ocular module. Central axes of the objective module and the ocular module are in parallel without overlapping.

IPC Classes  ?

• G01C 3/02 - Measuring distances in line of sightOptical rangefinders Details
• G02B 5/04 - Prisms
• G01C 3/10 - Measuring distances in line of sightOptical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument

Abstract

An optical device includes an objective module, a prism module and an ocular module. The prism module includes a first prism, a second prism, a third prism and a first coating. The prism module is disposed between the objective module and the ocular module. A first light beam emitted by an object sequentially passes through the objective module, the prism module and the ocular module. Central axes of the objective module and the ocular module are in parallel without overlapping.

IPC Classes  ?

• G02B 5/04 - Prisms
• G01C 3/08 - Use of electric radiation detectors
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/08 - Systems determining position data of a target for measuring distance only

Abstract

An optical camera lens including a first lens, a second lens, and a third lens arranged in sequence from the object side to the image side. The first lens has a positive refractive power, and includes a first object side surface and a first image side surface opposite to the first object side surface. The second lens has a negative refractive power, and includes a second object side surface and a second image side surface opposite to the second object side surface, wherein the second image side surface is concave. The third lens has a positive refractive power, and includes a third object side surface and a third image side surface opposite to the third object side surface, wherein both the third object side surface and the third image side surface are convex. The optical camera lens satisfies the following condition: 2<(f+BFL)/OD1<7.

IPC Classes  ?

• G02B 9/14 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – +
• G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

A compensating mechanism includes a base, an adjusting unit, an adjusting cover and a stop unit. The adjusting unit is disposed in the base. The adjusting cover connects to the adjusting unit and includes a curved groove. The stop unit is disposed between the adjusting unit and the base and includes a pin. When the adjusting cover is rotated, the adjusting unit is only rotated with respect to the base and the stop unit is axially moved with respect to the base so that the pin enters or leaves the curved groove.

IPC Classes  ?

• F41G 1/54 - Devices for testing or checking

Abstract

An illuminating module includes a light source assembly which includes a first lens unit. The light source assembly is configured to produce an illuminating beam, wherein the optical apparatus includes an optical modulation module and a light guiding module, the optical modulation module is parallel corresponding to the first lens unit, the illuminating beam passes through the optical modulation module to be an image beam having an image, and the image beam travels in the light guiding module, and leaves the light guiding module. The illuminating beam obliquely enters the optical modulation module.

IPC Classes  ?

• F21V 5/04 - Refractors for light sources of lens shape
• G02B 27/30 - Collimators
• G02B 3/00 - Simple or compound lenses

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with negative refractive power. The second lens is a meniscus lens with positive refractive power. The third lens is with positive refractive power and comprises a convex surface facing an object side. The fourth lens is with positive refractive power. The fifth lens is with negative refractive power. The wide-angle lens assembly satisfies: 3

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only

Abstract

5 is an effective focal length in mm of the fifth lens and f is an effective focal length in mm of the wide-angle lens assembly.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

A wide-angle lens assembly includes a first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth lenses. The first and second lenses are with negative refractive power and include a convex surface facing an object side and a concave surface facing an image side respectively. The third lens is a biconcave lens with negative refractive power. The fourth and fifth lenses are biconvex lenses with positive refractive power. The sixth lens is with positive refractive power and includes a convex surface facing the image side. The seventh lens is with negative refractive power and includes a concave surface facing the object side. The eighth lens is with positive refractive power and includes a convex surface facing the object side. The ninth lens is with positive refractive power and includes a concave surface facing the object side and a convex surface facing the image side.

IPC Classes  ?

• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"
• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is a meniscus lens with refractive power and includes a convex surface facing an object side and a concave surface facing an image side. The second lens is with refractive power. The third lens is with positive refractive power. The fourth lens is with refractive power. The fifth lens is with positive refractive power and includes a convex surface facing the image side. The first lens, the second lens, the third lens, the fourth lens, and the fifth lens are arranged in order from the object side to the image side along an optical axis.

IPC Classes  ?

• G02B 9/64 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having more than six components
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Abstract

A lens device includes a first lens module, a first light path turning module and an image sensor. The first lens module, the first light path turning module and the image sensor are sequentially arranged along a light path in which a light beam propagates. The first light path turning module is configured to change a direction in which the light beam propagates so that the light beam passes through the first lens module to form an image on the image sensor.

IPC Classes  ?

• H04N 5/225 - Television cameras
• G02B 5/04 - Prisms
• G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
• G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system

Abstract

A lens assembly is configured to be disposed under a cover glass, in a gap region and outside a display region, including a plurality of lenses, a reflector and an image sensor. The lenses, the reflector and the image sensor are sequentially arranged from an object side to an image side along an optical axis. One of the lenses is adjacent to the object side, has a minimum diameter of clear aperture, and has an outer circumferential portion which is non-circular. The lens assembly satisfies at least one of following conditions: BFL≥VL and BFL≥0.6×DL where BFL is a back focal length of the lens assembly, VL is a minimum side length of the image sensor, and DL is a diagonal length of the image sensor. A lens device includes a cover glass, a case, a display panel and the lens assembly.

IPC Classes  ?

• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only
• G02B 1/14 - Protective coatings, e.g. hard coatings
• G02B 5/12 - Reflex reflectors

Abstract

A lens assembly includes a first lens, a second lens, a third lens, and a fourth lens. The first lens is with positive refractive power and includes a concave surface facing an object side and a convex surface facing an image side. The second lens is with negative refractive power and includes a concave surface facing the object side. The third lens is with positive refractive power. The fourth lens is with refractive power and includes a concave surface facing the image side. The first lens, the second lens, the third lens, and the fourth lens are arranged in order from the object side to the image side along an optical axis. The lens assembly satisfies: TTL/f>1.2; wherein TTL is a total length of optical system of the lens assembly and f is an effective focal length of the lens assembly.

IPC Classes  ?

• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/00 - Optical objectives specially designed for the purposes specified below

Abstract

A wide-angle lens assembly includes a first lens including negative refractive power and a concave surface, a second lens including a meniscus lens with negative refractive power, a third lens, a fourth lens including positive refractive power and a convex surface, a fifth lens including a biconvex lens, a sixth lens including a biconvex lens, a seventh lens including positive refractive power and a convex surface, an eighth lens including a biconcave lens, a ninth lens including negative refractive power, and a stop disposed between the fourth lens and the sixth lens. The eighth lens is disposed between the fifth and seventh lenses and is cemented with at least one lens. The ninth lens is disposed between the fifth lens and an image side. The wide-angle lens assembly satisfies 1.3

Abstract

1 is an effective focal length of the first lens.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 13/06 - Panoramic objectivesSo-called "sky lenses"

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens has negative refractive power. The second lens has positive refractive power. The third lens has positive refractive power. The fourth lens has negative refractive power including a convex surface facing the object side and a concave surface facing the image side. The fifth lens has negative refractive power including a concave surface facing the object side.

IPC Classes  ?

• G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only
• G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers

Abstract

6 is an effective focal length of the sixth lens.

IPC Classes  ?

• G02B 13/00 - Optical objectives specially designed for the purposes specified below
• G02B 9/38 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only arranged + –– + both – components being meniscus
• G02B 9/62 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having six components only
• G02B 9/50 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only arranged + –– + both + components being meniscus
• G02B 5/20 - Filters

Abstract

1 is an energy of the first light beam passes through the lens assembly.

IPC Classes  ?

• G01C 3/08 - Use of electric radiation detectors
• G02B 27/14 - Beam splitting or combining systems operating by reflection only
• G02B 5/04 - Prisms