Abstract: An optical system configured for imaging an object with the use of two independently-scanning reflectors, the optical system having an optical axis and including: first and second scanning reflectors, the first scanning reflector being configured to scan a beam of light incident thereon in a first plane, the second scanning reflector being configured to scan a beam of light incident thereon in a second plane, and the first and second planes being transverse to one another; and a catadioptric afocal relay system disposed along the optical axis in optical communication with, and between, the first and second scanning reflectors, the catadioptric afocal relay system being configured to image one of the first or second scanning reflectors onto another of the first or second scanning reflectors, in light propagating along the optical axis, with a unit magnification, and the catadioptric afocal relay system including only one reflector.

Abstract: A liquid lens, which forms one optical system together with a solid lens, according to an embodiment, comprises: a first plate in which a cavity for accommodating a conductive liquid and a non-conductive liquid is arranged; a first electrode arranged on the first plate; a second electrode arranged under the first plate; a second plate arranged on the first electrode; and a third plate arranged under the second electrode, wherein a total volume of the conductive liquid and the non-conductive liquid and an area in which the lower surface of the second plate comes in contact with the conductive liquid can be designed so as to meet specific conditions.

Abstract: An optical pattern generation device includes: a first laser light source for emitting first laser light; a first diffractive optical element for changing a phase of the first laser light depending on a position on a plane perpendicular to a propagating direction of the first laser light, and emitting laser light having a phase distribution; a second diffractive optical element for changing a phase of incident laser light depending on a position on a plane perpendicular to a propagating direction of the incident laser light, and emitting laser light for forming an optical pattern; and a transfer optical system disposed between the first and second diffractive optical elements, for transferring the phase distribution of the laser light emitted from the first diffractive optical element to a phase distribution of laser light incident on the second diffractive optical element.

Abstract: A lens apparatus includes a base member including a rectilinear guide groove portion, a cam barrel including a cam groove portion, a lens holding member provided with a roller member inserted into the rectilinear guide groove portion and the cam groove portion and configured to support a lens unit, a first light amount adjustment unit, a biasing member configured to bias the roller member to the cam groove portion, and a pressing member provided between the first light amount adjustment unit and the lens holding member and configured to press the biasing member, wherein the first light amount adjustment unit includes a rotation regulating portion configured to regulate rotation of the pressing member around an optical axis of the lens unit.

Abstract: The present disclosure relates to the field of optical image technologies, and provides a camera lens module. The camera lens module includes: a lens barrel including a first barrel wall extending in a horizontal direction and a second barrel wall bent and extending from the first barrel wall; a lens module including at least a first lens and a second lens, the first lens and the second lens being received in the lens barrel sequentially from an image side to an object side; and a light shading sheet provided in the lens barrel and sandwiched between the first lens and the second lens. The second lens includes an optical portion located at a central position and a peripheral portion surrounding the optical portion, and the light shading sheet is embedded in the peripheral portion and fixed to the peripheral portion.

Abstract: A cover window is provided that includes a glass substrate, an optical pattern layer stacked on a first area and a second area of the glass substrate, the optical pattern layer having a plurality of patterns formed in the second area, a color layer stacked on the optical pattern layer having the plurality of patterns formed therein; and a mirror layer stacked on the color layer such that the mirror layer and the color layer are separated from each other, wherein in the second area of the glass substrate, natural light exhibits a color of the color layer due to an optical reaction between the color layer and the mirror layer.

Abstract: The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 35.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm on an object-side surface obtained by measurement from the object side is in a range of 15.00% to 25.00%, and an average reflectance in a wavelength range of 400 nm to 500 nm on an eyeball-side surface obtained by measurement from the object side is less than 2.00%.

Abstract: The present disclosure provides an optical lens, glasses and a display device. The optical lens includes: a first surface, a second surface, a first lens portion and a second lens portion. The optical lens is a convex lens. The first surface and the second surface are at two side surfaces of the optical lens. The first surface is a convex aspheric surface, and the second surface is a Fresnel surface with a recessed curved base. The first lens portion and the second lens portion are adjacent each other and connected in a direction perpendicular to a main optical axis of the optical lens. A first focal point of the first lens portion and a second focal point of the second lens portion are on the main optical axis, and a focal length of the second lens portion is greater than a focal length of the first lens portion.

Abstract: An eyewear location apparatus. The eyewear location apparatus includes a first strip and a second strip. The first strip and the second strip are designed to be attached to temples of eyewear, such as eyeglasses. The first strip includes a light emitting diode that is actuatable via an actuator. The second strip includes a speaker and a GPS transponder that are each actuatable via a pair of actuators. Actuation of the light emitting diode, the speaker and the GPS transponder is designed to as a user in locating an eyewear device.

Abstract: A driving mechanism for an optical element is provided, including a fixed portion, a movable portion, a first driving assembly, and a positioning assembly. The movable portion is movably disposed on the fixed portion, and includes an optical element. The first driving assembly is at least partially disposed on the fixed portion, and drives the optical element to move in a first direction. The positioning assembly is disposed on the fixed portion or the movable portion, wherein the positioning assembly limits the movable part to a first terminal position or a second terminal position relative to the fixed portion.

Abstract: An astigmatism compensation optical assembly includes a first astigmatism compensation optical module including a first plurality of optical elements including Pancharatnam-Berry phase (PBP) lenses, PBP gratings, polarization sensitive hologram (PSH) lenses, PSH gratings, metamaterials, or combinations thereof. The first plurality of optical elements are configured to compensate for astigmatism in a first axis and include a property associated with Zernike polynomial Z2?2. The astigmatism compensation optical assembly also includes a second astigmatism compensation optical module including a second plurality of optical elements including PBP lenses, PBP gratings, PSH lenses, PSH gratings, metamaterials, or combinations thereof. The second plurality of optical elements are configured to compensate for astigmatism in a second axis and include a property associated with Zernike polynomial Z22.

Abstract: The present disclosure relates to the technical field of optical imaging technologies, and provides a lens module. The lens module includes a lens barrel having a receiving space, and a lens received in the receiving space. The lens barrel includes a first barrel wall defining a light through hole, and a second barrel wall extending from an outer side of the first barrel wall while being bent towards an image side, the second barrel wall and the first barrel wall defining the receiving space. The lens includes a first area having a first processing precision, and the first area includes an optical portion for imaging and an engagement portion extending from a periphery of the optical portion. The engagement portion abuts against the first barrel wall.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies following conditions: 3.00?f1/f?7.00; and 4.00?R9/d9?50.00; f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; R9 denotes a curvature radius of an object-side surface of the fifth lens; and d9 denotes an on-axis thickness of the fifth lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

Abstract: The head-up display device includes a display element that emits image light and a virtual image optical system. The virtual image optical system includes a lens unit and a free curved surface mirror disposed along the emission direction of the image light in this order from a position close to the display element. The display element is disposed with a tilting attitude with respect to the optical axis of the lens unit with an end on the housing aperture side in an emission surface being close to an incidence surface in the lens unit and with an end on the opposite side of the housing aperture in an emission surface being apart from an incidence surface in the lens unit. The lens unit has an optical characteristic of optically enlarging an optical path length difference according to a virtual image distance difference.

Abstract: The present disclosure provides a lens module, including a lens barrel and a lens group. The lens group including at least one lens, and the lens barrel including an inside surface and an outside surface. The lens includes an optical portion and a bearing portion. The bearing portion includes an object side, an image side, a lateral surface and an inclined surface. The inside surface includes a first abutting surface, an extend surface and a second abutting surface, the lateral surface abutting against the first abutting surface, the lateral surface is provided with a protrusion extending from the lateral surface towards the second abutting surface. The protrusion is separated from the second abutting surface. The protrusion, the lateral surface, the extend surface and the second abutting surface form a first adhesive accommodation slot, and the inclined surface, the protrusion and the second abutting surface form a second adhesive accommodation slot.

Abstract: A lens assembly includes a lens barrel, a lens group, a gasket, and a light shielding group. The lens group includes a number of lenses. The light shielding group includes a number of shielding sheets defining a through hole. The gasket is located between two lenses on a light exiting side of the lens assembly. An inner portion of the gasket defines an inner hole for transmitting light. An aperture of the inner hole increases from an object side of the lens assembly to an image side of the lens assembly. An aperture D1 of the through hole adjacent to the gasket and adjacent to the object side, an aperture D2 of the inner hole adjacent to the object side, and an aperture D3 of the through hole adjacent to the gasket and adjacent to the image side satisfy a relationship 0.65<D1/D2<0.85; and D3?D2.

Abstract: A lens module includes a lens assembly and a lens barrel assembly receiving the lens assembly. The lens barrel assembly includes a lens holder and a lens barrel provided on the lens holder. A light transmission hole is defined passing through the lens holder and the lens barrel. The lens assembly is received in the light transmission hole. A center of the lens barrel is offset from a center of the lens holder.

Abstract: An ocular optical system configured to allow imaging rays from a display image to enter an observer's eye through the ocular optical system so as to form an image is provided. A direction toward the eye is an eye side, and a direction toward the display image is a display side. The ocular optical system sequentially includes a first and a second lens elements having refracting power from the eye side to the display side along an optical axis. Each lens element includes an eye-side surface and a display-side surface. An optical axis region of a display-side surface of the first lens element is convex. The display-side surface of the first lens element is a Fresnel surface. An optical axis region or a periphery region of a display-side surface of the second lens element is convex.

Abstract: The present disclosure relates to the technical field of optical lens and discloses a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens and a sixth lens. The camera optical lens satisfies the following conditions: 5.00?f1/f?10.00 and 20.00?R3/d3??5.00, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; R3 denotes a curvature radius of an object-side surface of the second lens; d3 denotes an on-axis thickness of the second lens. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

Abstract: The imaging-device lens module includes a lens and a spacer. The lens includes a functioning portion, a non-functioning portion, and a support. The non-functioning portion is disposed around the periphery of, and is integral with, the functioning portion. The support is integral with the non-the functioning portion and supports the lens. The spacer has a flat top face, and the support has a flat bottom face. The spacer is bonded at the top face to the bottom face to support the lens. The top face has a width B, and the bottom face has a width A, where B is greater than A. The support has a height L1, the spacer has a height L2, and the functioning portion has a diameter D, where the total of L1 and L2 is greater than D, and where the diameter D is equal to or greater than the height L1.