Abstract: An optical element driving mechanism for corresponding to an optical module, the optical element driving mechanism including a fixed portion, a movable portion, and a first driving assembly. The fixed portion has an aperture. The movable portion is for connecting to an optical element and is movable relative to the fixed portion. The first driving assembly is for driving the movable portion to move relative to the fixed portion. The fixed portion has an elongated structure, and the fixed portion further comprises a first end. The fixed portion further comprising a second end, wherein the first end and the second end are arranged along a first direction. A shortest distance between the optical sensing element and the first end is shorter than a shortest distance between the optical sensing element and the second end.

Abstract: The present disclosure relates to means of managing eye-length disorders, like myopia. The invention includes an apparatus and methods for the prescription, selection, supply and fitting of sets, stocks, or kits of pairs of myopia management spectacles, or spectacle fronts, attachable impermanent auxiliary optical films or mini optical elements used in conjunction with standard single vision spectacles, wherein the apparatus and methods are configured to provide substantially toric, or astigmatic, or asymmetric, directional optical cues to decelerate, ameliorate, control, inhibit, or reduce the rate of myopia progression over time, wherein the method is a prescribed care regimen providing temporal and spatial variation to the directional optical cues or stop signals.

Abstract: A diffraction light guide plate capable of increasing the area of an output image without increasing the total size thereof and having an advantage that the pupil position of a user is not limited. The diffraction light guide plate comprises first and second diffraction optical elements, wherein the first diffraction optical element is an element capable of receiving light incident onto the first diffraction optical element and outputting the received light toward the second diffraction optical element, and the second diffraction optical element is an element capable of emitting light therefrom out of the incident light from the first diffraction optical element.

Abstract: In a cemented lens according to one aspect of the present invention, a first optical element provided with a first light shielding film and a second optical element provided with a second light shielding film are cemented by an adhesive layer, and the adhesive layer is exposed from between the first light shielding film and the second light shielding film.

Abstract: The present invention discloses a camera optical lens with seven-piece lens including, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power and a seventh lens having a negative refractive power. The camera optical lens satisfies the following conditions: 0.30?R7/R5?1.50 and ?3.00?R13/R14??1.00. The camera optical lens according to the present invention has excellent optical characteristics, such as large aperture, wide-angle, and ultra-thin.

Abstract: A head mounted display (HMD) device and method of manufacturing the same. The HMD includes a frame housing a micro-display to project display light, a lightguide configured to receive the display light from the micro-display, and a corrective layer having a world-side surface coupled to the eye-side surface of the lightguide. The lightguide is further configured to have a world-side surface with a radius of curvature based on an ophthalmic corrective prescription and an eye-side surface having an outcoupler feature formed thereon such that the coupled lightguide and corrective layer form a lens configured to fit within the frame.

Abstract: An optical image lens assembly includes a plurality of optical lens elements. The optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. The plastic optical lens elements are formed by an injection molding method and include at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element includes at least one defined-wavelength light absorbent.

Abstract: An optical diffusing element includes a light emitting surface. The light emitting surface has microstructures, each microstructure has a border, the border of each microstructure is completely connected with the borders of the adjacent microstructures, each microstructure has a surface profile, and a functional formula of the surface profile is: s ? ( x ) = x 2 R + R 2 - ( ? + 1 ) ? x 2 ; s(x) represents the surface profile of each microstructure on an x-axis. The value x represents a vertical projection position of the surface profile on the x-axis. The value R represents a curvature radius of a vertex of each microstructure. The value ? represents a conic coefficient of each microstructure. The microstructures have the same value R and value ?. A light emitting assembly for three-dimension sensing includes the optical diffusing element and a light source.

Abstract: A variable power optical system (ZL (1)) includes a plurality of lens groups (G1-G7). During variable magnification, an interval between adjacent lens groups changes. The plurality of lens groups include: a first focusing lens group (G5) that moves during focusing; and a second focusing lens group (G6) that is disposed more toward an imaging surface side than the first focusing lens group and that moves along a different trajectory than the first focusing lens group during focusing. The first focusing lens group and the second focusing lens group both have a negative refractive power. The plurality of lens groups satisfy the following condition: 0.40<fF1/fF2<3.50 (wherein fF1 is the focal distance of the first focusing lens group, and fF2 is the focal distance of the second focusing lens group).

Abstract: A three-dimensional (3D) mirror is provided that includes a glass substrate with a first major surface, a second major surface opposite to the first major surface, and a minor surface connecting the first and second major surfaces. The 3D mirror also includes a reflective layer on the first major surface of the glass substrate. The first major surface comprises an aspheric curvature and a reverse curvature that is disposed in a reverse curve region of the glass substrate. The first major surface has a surface roughness Ra in the reverse curve region of about 3 nm or less, and a peak to valley (PV) surface roughness in the reverse curve region of about 30 nm or less.

Abstract: A method to select or to conceive/design lenses is provided. The method may be applied to lenses having effect of myopia control, visual fatigue relief, etc. In one aspect, a predictive model that ranks myopia control solutions according to visual, behavioral, and biometric parameter is provided. The predictive model may be built based on the myopic eye characteristics, the behavior of the wearers, and the defocus induced by the myopia control solution. In another aspect, a method, a computer-readable medium, and an apparatus for evaluating the efficacy of an ophthalmic lens in controlling at least one sightedness impairment (e.g., myopia) of at least one wearer of the ophthalmic lens are provided. The apparatus may determine, based on a predetermined relationship model, the efficacy of the ophthalmic lens for at least one wearer from representative data corresponding to the at least one wearer.

Abstract: A device for supplying power to an active ocular implant in an eye of a user can include a spectacle lens with a first main surface and a second main surface, a light source, and an optical arrangement which is configured to input couple light from the light source into the spectacle lens and output couple said light from the first main surface of the spectacle lens to the user. The optical arrangement can include at least one diffractive element which is arranged in the spectacle lens. Each of the at least one diffractive element can have an associated first end and an associated second end. The associated first end and the associated second end each can have a different distance from the first main surface and/or each have a different distance from the second main surface.

Abstract: An optical system comprising an optical lens •—the optical lens comprising a substrate (2) and a self-healing coating (3) extending along at least part of a surface of the substrate, the self-healing coating having a glass-transition temperature equal to or greater than 40° C. and equal to or smaller than 60° C., and •—the optical system comprising a heating component (4) adapted to heat the self-healing coating at a temperature above the glass-transition temperature of the self-healing coating.

Abstract: A zoom optical system consists of a first lens group having negative refractive power, a second lens group having positive refractive power, and a rear lens group which are disposed in order from an object. The rear lens group comprises a last lens group and an F lens group in order from a side closest to an image. Lens groups forming the first lens group, the second lens group, and the rear lens group are configured in such a manner that, upon zooming, the respective lens groups move and a distance between the lens groups adjacent to each other changes. At least a part of the F lens group is configured to move upon focusing. Further, the following conditional expression is satisfied. ?0.220<f1/fE<0.280 where f1: a focal length of the first lens group, and fE: a focal length of the last lens group.

Abstract: Provided is a pair of smart glasses. The smart glasses include a front frame, and legs rotatably connected to the front frame through a rotating module. A heat conducting structure is housed in the rotating module. The heat conducting structure includes an upper flange and a lower flange that are closely fitted in an up and down direction and rotatable relative to each other. The upper flange is connected to a front frame heat pipe provided in the front frame, and the lower flange is connected to a leg heat pipe provided in the legs and rotates with the leg heat pipe.

Abstract: An optical lens and a head-mounted display device are provided. The optical lens includes a first lens, a second lens, a third lens, and a fourth lens sequentially arranged from a light exit side to a light incident side. Refractive powers of the first lens, the second lens, the third lens and the fourth lens are sequentially positive, negative, positive and positive. An image generator is disposed at the light incident side. The optical lens is configured to receive an image beam provided by the image generator. The image beam forms a stop at the light exit side. The stop has the minimum cross-sectional area of beam convergence of the image beam. The optical lens and the head-mounted display device of the disclosure have advantages of smaller size, light weight, large viewing angle and high resolution.

Abstract: An optical driving assembly includes an optical element having an optical axis, an optical sensor, and a driving module driving optical sensor to translate along a direction perpendicular to the optical axis. The driving module includes a fixation member provided with a moving cavity, a moving member provided in the first moving cavity and movably connected to the fixation member along a first direction and provided with a second moving cavity, a supporting member provided in the second moving cavity and movably connected to the moving member along a second direction and supporting the optical sensor, and first and second driving assemblies. The first and second driving assemblies include first and second shape memory alloy wires. The optical sensor can linearly move in two directions perpendicular to the optical axis, achieving optical image stabilization and independent movements in two directions that are not affected by each other.

Abstract: A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a rear group, sequentially from an object side. Intervals between lens groups varies when changing magnification. A lens group having a highest negative refractive power among a lens group having a negative refractive power in the rear group is a focusing lens group GF configured to move toward an image side when focusing from infinity to a close range. A lens group GFF having a positive refractive power and arranged adjacent to an object side of the focusing lens group GF among a lens group having a positive refractive power included in the rear group includes a positive lens component L1 positioned on a most image side, which includes a positive lens L1P having a refractive index NdL1P, and a conditional expression (1) 1.85<NdL1P is satisfied.

Abstract: Eyewear includes a lens (31) including left and right curved, concave protuberances (33) with a connecting structure (37) for sitting on a nose of a user. A peak point (63) of each protuberance (33), which is at a point of maximum distance from a user's eye, is not aligned with a centerline of the user's eye but is offset from the centerline of the user's eye by an offset distance.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side to an imaging plane. The second lens has a concave image-side surface, the third lens comprises a positive refractive power, a radius of curvature of an object-side surface of the fifth lens is greater than a radius of curvature of an image-side surface of the fifth lens and a radius of curvature of an object-side surface of the sixth lens, and TTL/2lmgHT<0.695 in which TTL represents a distance from an object-side surface of a lens closest to the object side among the plurality of lenses to an imaging plane and 2lmgHT represents a diagonal length of an imaging plane.