3538results about "Lens" patented technology

An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

Disclosed is a wearable electronic device. The wearable electronic device includes: a display module comprising a display; a housing to which the display module is coupled; and a projection display disposed on a side portion of the housing and configured to display information on a display area adjacent to the housing, the projection display may include: a substrate disposed along a mounting surface provided on a side portion of the housing; a plurality of light-emitting devices comprising light-emitting circuitry disposed on the substrate in a grating arrangement; and a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices.

A Fresnel lens is adapted to be attached to a button associated with an expandable grip structure for a mobile device. The expandable grip structure can include a collapsible membrane formable into a conical shaped when expanded from a flat position to an expanded position, the button formed at one end of the collapsible membrane and having an outer perimeter and a surface, and a base formed at a second end of the collapsible membrane. The collapsible membrane can be expanded and moved by the base along a back surface of a mobile device to a location on the back surface that enables the Fresnel lens to enhance radio frequency reception by the mobile device.

The mechanical arm grinding and polishing device for lens machining comprises a machining supporting base and a mechanical executing mechanism, and the mechanical executing mechanism is arranged on one side of the outer portion of the machining supporting base; the disc-shaped fixing piece is rotationally installed on the upper end face of the machining supporting base, and eight guide grooves evenly distributed in the annular direction are formed in the upper end face of the disc-shaped fixing piece; the limiting piece is mounted in the guide groove; the grinding mechanism is installed at the end, close to the machining supporting base, of the mechanical executing mechanism, and the grinding mechanism comprises a grinding disc and a spraying component; the anti-splashing device is arranged on the outer edge of the upper end face of the disc-shaped fixing piece; the fixing seat is installed on the upper end face of the center of the disc-shaped fixing piece, and an optical element supporting seat is installed at the end, away from the disc-shaped fixing piece, of the fixing seat. The adjustable limiting piece and the disc-shaped fixing piece are arranged to be matched with different lenses, the anti-splashing device is matched with flow guiding and the like to achieve ordered collection, and the machining efficiency and quality are improved through cooperation of the parts.

A display device has a display panel provided with a plurality of light emitting elements 10 including a light emitting part 30, and a lens member 50 through which light emitted from the light emitting part 30 passes, in which when a distance (an offset amount) between a normal LN passing through a center of the light emitting part 30 and a normal LN′ passing through a center of the lens member 50 is defined as D0, a value of the distance (offset amount) D0 is not 0 in at least some of the light emitting elements 10 provided in the display panel.

This invention belongs to the field of optical lens processing, and particularly relates to an optical lens processing turntable, including a processing table with a processing groove on the processing table. A base is set at the bottom of the processing groove, and two sets of turntable assemblies are symmetrically arranged on the base. A drive assembly is shared between the two sets of turntable assemblies and the base. A polishing mechanism is provided on the turntable assembly. The turntable assembly includes a semi-circular support cover, which is connected to the base via a support tube. A rubber sleeve adapted to the shape of the support cover is fitted on the outer arc surface of the support cover, and multiple fixing grooves for supporting lenses are formed on the surface of the rubber sleeve. This invention directly fixes lenses through the turntable assembly. Lens installation only requires pressing into the groove and then vacuum adsorption, and demolding only requires releasing the vacuum negative pressure. While ensuring the stability of lens fixation, it eliminates heating, cooling, and asphalt cleaning processes, significantly shortening the single-cycle processing time and greatly reducing material usage costs.

A micro-light emitting diode (LED) structure includes a substrate and at least one micro-LED formed above the substrate. The at least one micro-LED includes a metal layer formed above the substrate, a light emitting layer formed above the metal layer, an insulating layer covering the micro-LED and including an opening exposing a portion of the light emitting layer, and a transparent conductive layer above the insulating layer and electrically connected to the light emitting layer via the opening of the insulating layer.

A device for light field microscopy, comprising: a two-dimensionally spatially resolving detector for detecting light radiated by a sample; a detection beam path having at least one microscope objective lens; and at least one multi-lens array for imaging the light radiated by the sample onto the detector, wherein the multi-lens array is arranged in a plane which is optically conjugated with respect to a rear focal plane of the microscope objective lens, or in the vicinity of such a plane; and a control and evaluation unit for activating the detector and for evaluating the measurement data from the detector. The device also includes an adjustable relay optical system in order to image the rear focal plane of the microscope objective lens into the plane in which the multi-lens array is arranged, or in the vicinity of this plane. A method for light field microscopy is also provided.

Imaging lens arrangement (100), comprising: an optical plastic element (110), comprising: an incidence surface (111), wherein an imaging light enters the optical plastic element (110) through the incidence surface (111); a reflective surface (112), wherein the imaging light changes direction through the reflective surface (112); an exit surface (113), wherein the imaging light exits the optical plastic element (110) through the exit surface (113); and at least one connecting surface (130) which is used to connect the incident surface (111), the reflecting surface (112) and the exit surface (113), wherein the at least one connecting surface (130) comprises: a sprue (131) which is arranged on the at least one connecting surface (130), and wherein the sprue (131) is raised relative to an adjacent section (134) of the at least one connecting surface (130); a divergent nozzle surface (132) connected to the sprue (131) and the adjacent section (134), wherein the divergent nozzle surface (132) diverges from the sprue (131) and extends in a direction of the adjacent section (134); and a gate remnant (133) which is arranged on a surface of the sprue remnant (131), wherein a contour of the gate remnant (133) is linear and the gate remnant (133) extends over the surface of the sprue remnant (131); wherein, when projected along a direction in a front view of the adjacent section (134) of the at least one connecting surface (130), a projection surface of the divergent nozzle surface (132) is As, a projection surface of the sprue residue (131) is Ag, and the following condition is met: 0.08 ≤ As / Ag ≤ 0.68.

An achromatic imaging optic (20) is used to image an output field (16a) along a beam path (23) of the imaging optic (20) into a target field (14) for use in DUV microlithography. The imaging optic (20) has a plurality of lenses (L1 to L13), each containing less than 5% lead oxide. At least one of the lenses (L5, L7, L9) is made of a high-dispersion optical material with an Abbe number less than 50. At least one of the lenses (L1 to L4, L6, L8, L10 to L13) is made of a low-dispersion optical material with an Abbe number greater than 50. This results in an imaging optic with simplified manufacturing. Depending on the design, the imaging optics can be part of an optical system of a projection exposure system as an illumination lens (20) or as a projection lens.

A look-in type wide-field video display apparatus includes an ocular optical system (OC), a circular polarizing plate, and a display device (D) positioned in order from a user's eye side. The OC includes a first lens (L1) and a second lens (L2) positioned in order from the user's eye side, a surface on the user's eye side in the L1 is aspherical, a surface on a D side in the L1 is planar or approximately planar, and a reflective polarizing plate and a ¼-wavelength plate are laminated on the surface on the D side in this order from the user's eye side, a surface on the user's eye side in the L2 is aspherical, and is convex toward the user's eye side around an optical axis of the OC or is approximately planar, and a surface on the D side in the L2 is aspherical convex toward the D side.

An electroactive lens with raised resistive bridges is disclosed. The resistive bridges can connect many ring electrodes in an electroactive lens with a relatively small number of bus lines. These resistors are typically large to prevent excessive current consumption. Typically, they are placed in the same plane as the ring electrodes, which means that the ring electrodes are further apart or made discontinuous to accommodate the resistors. But further separating the ring electrodes or making them discontinuous degrades the optical quality of the lens. Placing the ring electrodes and resistors on layers separated by an insulator allows the ring electrodes to be closer together and continuous and have a high enough resistance to limit current consumption. It also relaxes the constraints on feature size and placement during processing to make the lens. And because the resistors and electrodes are on different planes, they can be formed of materials with different resistivities.

A sensing system may include an illumination projector, an image sensor, and one or more controllers. The illumination projector may project a partial illumination pattern on a target object. The image sensor may sense the partial illumination pattern projected on the target object and may generate signals representative of the sensed illumination pattern. The one or more controllers may control the illumination projector and process the signals generated by the image sensor. The illumination projector may include a microlens array and an emitter array. A spatial relationship of emitters of the emitter array to microlenses of the microlens array may cause the emitter array and the microlens array to project light upon the target object in the partial illumination pattern.

The invention relates to an optical element, in particular a lens (1) or a mirror, preferably for a semiconductor technology system, in particular for a lighting system or for a projection lens of a projection exposure system, comprising: a substrate (2), and a coating (3) which is applied to a surface (2a) of the substrate (2). The coating (3) has at least one refractive layer (4) with a location-dependent varying thickness (d(x,y)), wherein a minimum thickness (dMin) of the refractive layer (4) is at least 5 ΔB, preferably at least 10 ΔB, particularly preferably at least 15 ΔB, and wherein a difference (dMax- dMin) between a maximum thickness (dMax) and the minimum thickness (dMin) of the refractive layer (4) is greater than ΔB, preferably greater than 2 ΔB, particularly greater than 3 ΔB, where ΔB denotes the useful wavelength of the optical element (1).The invention also relates to an optical system, preferably a semiconductor technology system, comprising: a beam source for providing useful radiation at a useful wavelength (<B), preferably in the DUV wavelength range, in particular at 468 nm, 365 nm, 248 nm, 193 nm or 157 nm, and at least one optical element (1) designed as described above.

According to the metasurface device for snapshot type high dynamic range imaging and the imaging system and method thereof provided by the invention, the dynamic range of a camera can be improved by integrating a plurality of superlenses with different transmittances on a single metasurface; the polarization-independent metasurface is designed by using a pure phase modulation principle, so that the system stability is greatly improved; compared with other backlight imaging methods, the method has the advantages of high integration level, single measurement and space and time cost saving, and has a certain reference effect on development of ultra-compact imaging equipment and improvement of dynamic range imaging capability.

The invention discloses an ink-jet printing dry film defect detection system, and belongs to the technical field of OLED pixel groove dry film defect detection, the ink-jet printing dry film defect detection system comprises a shaping part, and a linear polarizer and a shaping lens are arranged in the shaping part; the shaping lens comprises a first lens and a second lens. The side face, facing the linear polarizer, of the first lens is flat and is vertically incident by the vertically polarized light. The side surface of the first lens back to the linear polaroid is concave in center and flat in periphery; the second lens protrudes outwards towards the center of the side face of the first lens and is flat in periphery. The side of the second lens back to the first lens is flat. The invention aims to solve the problems of the existing ink-jet printing OLED panel dry film defect detection method, the detection efficiency and the detection quality can be effectively improved, the cost is reduced, the introduction of new defects or the damage to a substrate is avoided, and the requirements of large-scale industrial production are met.

The invention relates to the technical field of cigarette package anti-counterfeiting, in particular to a multilayer body with a 3D anti-counterfeiting effect, a preparation method of the multilayer body and an anti-counterfeiting packaging material. The multilayer body comprises a base material layer, a microlens array layer arranged on the front surface of the base material layer and a miniature image-text layer arranged on the rear surface of the base material layer, the base material layer comprises a protruding part and a plane part, the front surface of the base material layer comprises a convex surface and a front plane, and the rear surface of the base material layer comprises a concave surface and a rear plane; the micro lens array layer is arranged on the convex surface, and the miniature image-text layer is arranged on the concave surface. According to the invention, the microlens array layer forms the curved surface structure, so that the optical axis directions of the microlenses in different areas are naturally changed, a wider viewing angle is covered, and an observer can see a clear and distortionless three-dimensional image even if watching the three-dimensional image from a large lateral angle; and meanwhile, the light path change is more complicated, and a larger-amplitude and smoother dynamic effect is provided.

The present disclosure relates to devices, systems and / or methods for myopia control. The present disclosure generally relates to a lens that provides a stop signal for myopia on a substantial portion of the spectacle lens being used by a viewer. The present disclosure relates to devices, methods and / or systems for applying a stop signal for eye development using ophthalmic lenses in combination with microlens arrays. The present disclosure also relates to devices, methods and / or systems for modifying incident light through spectacle lenses that utilize color cues to slow down the rate of myopia progression. The present disclosure relates to devices, methods and / or systems for applying a stop signal for eye development using spectacle lenses in combination with refractive and / or diffractive optical elements that provide conflicting or opposition optical signals at wavelengths between 510 nm and 610 nm.

The invention belongs to the technical field of micro-nano optics. The invention provides a multi-focus off-axis super lens of a visible light wave band. The multi-focus off-axis super lens comprises a plurality of groups of off-axis single-focus sub super lens assemblies which are circularly arranged, wherein each group of off-axis single-focus sub super lens assemblies comprises a plurality of off-axis single-focus sub super lenses which are concentrically and annularly distributed; wherein the off-axis single-focus sub-super-lens comprises a micro-structure unit and a substrate unit, the micro-structure unit comprises a plurality of micro-structure columns which are uniformly arranged, and one end of each micro-structure column is arranged on the substrate unit. According to the embodiment of the invention, on the basis of a geometric phase modulation principle, through reasonable phase design and microstructure arrangement, the off-axis single-focus sub-super-lens has a designed focus position; through spatial multiplexing of the micro-structures of the multiple off-axis single-focus sub-super-lenses, one super-lens has the phase characteristics of the multiple off-axis single-focus sub-super-lenses, and the functions of the multiple off-axis single-focus sub-super-lenses are achieved on one super-lens.

Disclosed are a laser annealing system and a method of fabricating a semiconductor device using the same. The laser annealing system having multiple laser devices may include a stage, on which a substrate is loaded, a light source generating a plurality of laser beams to be provided to the substrate, an optical delivery system disposed between the light source and the stage and used to deliver the laser beams, a homogenizing system disposed between the optical delivery system and the stage, the homogenizing system including an array lens including a plurality of lens cells which allow the laser beams to pass therethrough and homogenize the laser beams, and an imaging optical system disposed between the homogenizing system and the stage to image the laser beams on the substrate.

The invention relates to the technical field of aspherical lens machining, in particular to an edge milling device for aspherical lens machining, which comprises a clamping assembly, a first milling assembly and a second milling assembly, the milling assembly comprises a milling cutter for grinding the edge of the aspherical lens and a grinding rod for grinding the surface of the aspherical lens; the fixing assembly is used for fixing the milling cutter and the polishing rod; the protection assembly is arranged outside the clamping plates in a sleeving manner and is used for surrounding the lens between the two groups of clamping plates; the grinding device has the beneficial effects that through cooperation of the bolts and the mounting plates, the grinding rods are mounted on one sides of the clamping plates, then the lens is adsorbed to the other set of clamping plates, surface grinding of the aspheric lens is achieved, when the edge of the aspheric surface needs to be ground, the lens is clamped through the clamping assemblies, a milling cutter is driven by the connecting rods to be inserted between the two sets of clamping plates, and grinding is achieved. The edge of the aspherical lens is ground, all-directional grinding machining of the aspherical lens can be achieved without replacing equipment, and the production efficiency is improved.

A composition for polymerizing a high refractive index resin according to one embodiment of the present specification includes a first compound represented by chemical formula 1; and one or more of a second compound represented by chemical formula 2 and a third compound represented by chemical formula 3. A high refractive index resin according to another embodiment of the present specification includes a first unit represented by chemical formula 11; and one or more of a second unit represented by chemical formula 12 and a third unit represented by chemical formula 13.

An optical system according to an embodiment of the present invention includes an aperture, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens which are sequentially arranged from an object side to an image side, wherein the first lens has positive refractive power, the second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, and the fifth lens has negative refractive power. Both the object-side and image-side surfaces of the fifth lens have an asymmetric circular shape.

A light irradiation apparatus focuses light on a surface or an inside of an object to observe or process the object, and includes a laser light source, a lens, a lens, a mask, a wave plate, and a lens. The mask is a multi-ring mask for spatially intensity-modulating input light in a beam cross-section and outputting modulated light, and includes a plurality of ring-shaped light-shielding areas provided around a center position, and a transmitting area provided between two adjacent light-shielding areas out of the plurality of light-shielding areas. A radial width of each of the two adjacent light-shielding areas out of the plurality of light-shielding areas is larger than a radial width of the transmitting area provided between the two light-shielding areas.

An image capturing optical system includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The third lens element has negative refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The sixth lens element has positive refractive power. The seventh lens element with negative refractive power has the object-side surface being convex in a paraxial region thereof and the image-side surface being concave in a paraxial region thereof and having at least one inflection point.

The spreadlight lens of the court lamp comprises a lens substrate applied to a lamp, a plurality of lenses are arranged on the lens substrate in a protruding mode, the two ends of each lens are the incident end and the emergent end respectively, and the emergent end is divided into a first light-transmitting body and a second light-transmitting body from top to bottom. Wherein the back face of the first light-transmitting body sinks inwards to form a light inlet cavity used for containing a light source, a reflecting groove is formed in the back face of the first light-transmitting body, a reflecting face is arranged on the side wall, close to the light inlet cavity, of the reflecting groove, and the reflecting face is used for reflecting light rays projected to the reflecting face through the light inlet cavity. The convex light-transmitting bodies are arranged on the lens, light rays emitted by a light source can enter the convex light-transmitting bodies to be refracted and diffused to be more uniform, meanwhile, the reflecting surfaces are arranged in the convex light-transmitting bodies, total reflection of the light rays entering the light-transmitting bodies can be achieved, light waste is reduced, and glare is reduced.

The invention discloses a super-resolution micro lens and a preparation method thereof. The lens comprises a photoresist spherical micro lens and a mixed substrate plane lens which are sequentially arranged from top to bottom. The specific preparation method comprises the following steps: S1, preparing a photoresist cylinder on a quartz substrate; s2, reflowing the photoresist cylinder into a micron lens by using a photoresist reflowing process; s3, preparing a mixed substrate plane lens on the surface of the to-be-detected sample; and S4, transferring the micron lens to the surface of the mixed substrate plane lens. By changing the thickness of the mixed substrate plane lens, adjustment of the amplification coefficient and the numerical aperture can be realized, and compared with a micro lens without a mixed substrate, the micro lens has higher imaging resolution. The method has a wide prospect in the technical field of optical imaging.

The invention discloses a near-infrared confocal microscopic imaging system and a near-infrared confocal microscopic imaging method, and relates to the technical field of optical microscopic imaging. The method comprises the following steps that near-infrared exciting light sequentially passes through a beam expanding system, a liquid lens and a confocal scanning light path to irradiate a to-be-detected sample so as to generate a near-infrared fluorescence signal, and the liquid lens is used for adaptively adjusting the focal length and wavefront morphology according to the depth of the to-be-detected sample; a photomultiplier detects the near-infrared fluorescence signal after non-focus scattered light is filtered out through the confocal scanning light path and the pinhole, and a fluorescence signal image is obtained; and according to the fluorescence signal image, carrying out iterative optimization on the focal length and phase modulation parameters of the liquid lens to maximize the image sharpness or the signal-to-noise ratio and realize the three-dimensional microscopic imaging of the deep tissue. According to the near-infrared confocal microscopic imaging method provided by the invention, deep near-infrared microscopic imaging with low phototoxicity, low cost and high resolution can be realized.

A display device includes: an image projector including an image forming device and a meta-lens module and configured to output image light formed by the image forming device; and a meta-waveguide configured to transfer the image light output from the image projector, to an observer's field of view, the meta-waveguide including waveguide element configured to totally reflect light inside, an input coupler including a plurality of first nanostructures forming a first phase gradient in a first direction and configured to couple the image light from the image projector to an inside of the waveguide element, and an output coupler including a plurality of second nanostructures forming a second phase gradient in a second direction different from the first direction and configured to output the light coupled to the inside of the waveguide element by the input coupler, to an outside of the waveguide element.

The invention discloses a vector vortex super lens for directional selective edge detection and an imaging system with the vector vortex super lens, and the vector vortex super lens comprises a substrate and a nano-structure unit on the substrate. The nano-structure units are arranged on the substrate according to specific phase distribution to form a nano-structure unit array; x-line polarized light carrying sample information passes through the vector vortex super lens to generate left-handed and right-handed emergent light, the two paths of emergent light are superposed to obtain an edge image carrying polarization information, and a vector edge detection function is realized. The vector vortex super lens provided by the invention has the edge extraction capability of dynamic adjustment as required, and can realize real-time directional edge detection only by rotating the polarization analyzer without other hardware modification or digital post-processing.