Abstract: There is provided a method to manufacture a diffuser plate with better productivity and exhibiting an excellent diffusion property and having excellent durability with respect to light having large coherence, the microlens array diffuser plate including: a microlens group positioned on a surface of a transparent substrate. The diffuser plate includes two or more unit cells that are continuously set in array, the unit cell includes a plurality of microlenses positioned on the surface of the transparent substrate, and ridge lines between the microlenses adjacent to each other are nonparallel to each other, and are nonparallel to the transparent substrate.

Abstract: An optical device includes a lens body including plural lenses of which optical axes are arranged alongside each other, and having an intermediate image forming surface for forming an erect real image of equal magnification formed in an optical path, a light shielding body that is provided to face a light incident surface of the lens body, and includes a transmitting portion that is positioned on the optical axes of the plural lenses and transmits light and a light shielding unit that is positioned on a portion other than the optical axes of the plural lenses and shields the passage of light, and a regulating body that is provided to face a light incident surface of the light shielding body, includes an opening narrower than the transmitting portion, and regulates a part of light toward the transmitting portion.

Abstract: Disclosed herein are systems, apparatus, methods, and articles of manufacture to present three dimensional images without glasses. An example apparatus includes a micro lens array and at least one processor. The at least one processor is to: determine a first position of a first pupil of a viewer; determine a second position of a second pupil of the viewer; align a first eye box with the first position of the first pupil; align a second eye box with the second position of the second pupil; render, for presentation on a display, at least one of a color plus depth image or a light field image based on the first position of the first pupil and the second position of the second pupil; and cause backlight to be steered through the micro lens array and alternatingly through the first eye box and the second eye box.

Abstract: An apparatus for projecting content displayed on a display, the apparatus may include a first array of first microlenses that comprise multiple first microlenses; a second array of second microlenses that is spaced apart from the first array of microlenses and comprises multiple second microlenses; wherein a width of each first microlens and each second microlens is smaller than a few times a pixel pitch of the display; wherein the second array of second microlenses is located at a conjugate plane of the display; wherein a focal plane of each second microlenses is located at a corresponding first microlens; wherein the apparatus is configured to project different images of the display that are located at different distances from the display; wherein each image of the display comprises multiple image segments; wherein an optical path of each image segment passes through a dedicated pair of a second microlens and a corresponding first microlens.

Abstract: The present disclosure describes a method and computerized means for creating dynamically evolving moiré shapes on curved surfaces. The method applies geometrical transformations in order to obtain curvilinear moirés and creates the moirés on curved surfaces by applying mappings from planar space to 3D space. The method relies on the superposition of a base layer with base bands and of a revealing layer with sampling elements. The dimensions of the revealing layer sampling elements such as cylindrical or spherical lenses as well as the distances between the base and revealing layer surfaces are adapted to the space between neighbouring isoparametric lines that define the curved surface. The resulting moiré shapes evolve smoothly on the specified curved surface and show recognizable shapes such as words, letters, numbers, flags, logos, graphic motifs, drawings, clip art, and faces.

Abstract: A wafer-level homogeneous bonding optical structure includes two optical lens sets disposed on an optically transparent wafer and a spacer disposed on the optically transparent wafer and between the two optical lens sets. The spacer is homogeneously bonded to and integrated with the optically transparent wafer in the absence of a heterogeneous adhesive.

Abstract: A security element for securing security papers, value documents and other data carriers, having a lenticular image that, from different viewing directions, displays at least two different appearances. The lenticular image includes a lens grid composed of a plurality of microlenses and a radiation-sensitive motif layer arranged spaced apart from the lens grid. The radiation-sensitive motif layer includes, produced by the action of radiation, a plurality of transparency regions that are each arranged in perfect register with the microlenses of the lens grid. Outside the transparency regions produced by the action of radiation, the radiation-sensitive motif layer is opaque and patterned in the form of a first motif such that, when the security element is viewed through the lens grid from a first viewing direction, the first motif is visible as the first appearance.

Abstract: An optical device includes: a lens body having multiple lenses arranged such that optical axes thereof are parallel to one another; a light-shielding wall that is disposed for the lens body and blocks, in an optical axis direction, portion of light directed to the multiple lenses; and a sheet member that covers a surface of the light-shielding wall, the surface being perpendicular to the optical axes, and allows light to pass therethrough.

Abstract: An image display apparatus includes: a light source to emit light; a lens array including a plurality of lenses arranged therein; and an image forming device to form an image with the emitted light on the lens array. The light corresponding to the formed image is transmitted from the lens array to be reflected by a reflective surface to visualize the formed image into a virtual image. At least two of the plurality of lenses of the lens array have curvatures different from each other.

Abstract: An image sensor image sensor may include: a substrate; photo-sensing elements formed in the substrate, each photo-sensing element responsive to light to produce a photo-sensing electrical signal; an antireflection layer formed over of the photo-sensing elements and structured to reduce optical reflection to facilitate optical transmission of incident light to the photo-sensing elements through the antireflection layer; color filters formed over the antireflection layer and arranged to spatially correspond to the photo-sensing elements, respectively, each color filter structured to select a designated color in the incident light to transmit through to a corresponding photo-sensing element; and partition patterns formed over the antireflection layer and arranged to spatially correspond to the photo-sensing elements, respectively, to partition light receiving area above the photo-sensing elements into separate light receiving areas, each partition pattern surrounding a corresponding color filter to be separate f

Abstract: In some examples, a three dimensional display system includes a display (for example, a display screen or a display panel), a micro lens array, and an eye tracker to track one or more eyes of a person and to provide eye location information. The display system also includes a rendering processor to render or capture color plus depth images (for example, RGB-D images) or light field images. The display system also includes a light field processor to use the eye location information to convert the rendered color plus depth images or light field images to display images to be provided to the display.

Abstract: A display panel bezel, a display terminal, a spliced display device and an image output control method are provided. The display panel bezel includes at least two bezel portions forming an accommodating space for mounting a display panel, wherein each bezel portion includes an identity identifier and an identification device configured to identify the identity identifier and obtain at least one identity identifier of at least one bezel portion of the at least two bezel portions connected to the bezel portion.

Abstract: A security device includes an array of image icon elements and an array of image icon focusing elements, wherein the array of image icon elements and the array of image icon focusing elements are disposed relative to each other such that the security device projects a synthetic image along a viewing angle and wherein the security device is configured to physically degrade when exposed to temperatures above an anti-harvesting temperature, the anti-harvesting temperature being lower than a harvesting temperature of a coupling between the security device and a substrate.

Abstract: The process for manufacturing a photovoltaic concentrator comprising a photovoltaic substrate (2) equipped with a plurality of photovoltaic cells (5), and an optical structure (1) comprising a first optical-lens stage (4) and a second optical-lens stage (3) that are intended to optically interact with each other, includes (i) providing a mould (6); and (ii) simultaneously forming the first optical-lens stage (4) and the second optical-lens stage (3) using said provided mould (6), and implementing a step of filling said mould (6) with a material (100), especially by injecting or pouring said material (100).

Abstract: A method for forming an image sensor device is provided. The method includes forming an isolation structure in a substrate. The method includes forming a light-sensing region in the substrate. The isolation structure surrounds the light-sensing region. The method includes forming a grid layer over the substrate. The grid layer is over the isolation structure and has an opening over the light-sensing region. The method includes forming a first lens in or over the opening. The method includes forming a second lens over the first lens and the grid layer.

Abstract: A near-eye display system includes one or more non-planar display panels and a lenslet array to display a near-eye lightfield frame. The near-eye display system further includes a rendering component to render, based on a stereoscopic focus volume associated with a set of display geometry data of the one-or more non-planar display panels, the array of elemental images in the near-eye lightfield frame such that objects within the stereoscopic focus volume are perceived to be in focus by the user's eye. A method of operation of the near-eye display system includes receiving display geometry data for one or more non-planar display panels of the near-eye display system and rendering, based on a stereoscopic focus volume, an array of elemental images at a position within a near-eye lightfield frame such that the non-planar display panels presents objects within the stereoscopic focus volume to be in focus.

Abstract: A virtual curved surface display panel and a display device are provided. By using the imaging principle of the concave lens, the concave lens array is provided on the display surface of the flat display panel, and the focal lengths of the concave lenses are designed to be symmetrically distributed with respect to a vertical symmetry axis of the display surface. In the concave lenses on the same side of the symmetry axis, the focal lengths of the respective concave lenses having the same distance from the vertical symmetry axis are the same, and the focal lengths of the respective concave lenses having different distances from the vertical symmetry axis are different from each other. By setting the focal lengths of the concave lenses, the image distances of the pixels in the flat display panel are different so that the images of the plurality of pixels constitute a curved surface.

Abstract: If an optical path length of an optical system is reduced and a length of a laser light on an irradiation surface is increased, there occurs curvature of field which is a phenomenon that a convergent position deviates depending on an incident angle or incident position of a laser light with respect to a lens. To avoid this phenomenon, an optical element having a negative power such as a concave lens or a concave cylindrical lens is inserted to regulate the optical path length of the laser light and a convergent position is made coincident with a irradiation surface to form an image on the irradiation surface.

Abstract: Described are an improved automated luminaire and luminaire systems employing a matching lenslet pair beam shaper. The beam shaper employs nesting lenslets that are articulated so that the degree of beam shaping modulation is continuously adjustable across a range of modulation.

Abstract: A light-emitting diode module includes a printed circuit board with a light-emitting diode array mounted on first surface. A secondary lens array is positioned over the light-emitting diode array and includes a secondary lens element for each light-emitting diode element in the light-emitting diode array. A lens holder is mounted to the printed circuit board and configured to retain each secondary lens element of the secondary lens array in alignment in an x-y plane with respect to each light-emitting diode element of the light-emitting diode array. The printed circuit board further includes a first locating feature corresponding to a second locating feature of either the secondary lens array or the lens holder. The locating features align the secondary lens array with respect to the light-emitting diode array on the printed circuit board.

Abstract: A display device includes a two-dimensional array of tiles. Each tile includes a two-dimensional array of pixels, and a lens assembly, of a two-dimensional array of lens assemblies, configured to direct at least a portion of the respective pattern of light from the two-dimensional array of pixels to a pupil of an eye of a user. Each pixel is configured to output light so that the two-dimensional array of pixels outputs a respective pattern of light. The lens assembly includes multiple distinct optical elements, such as one or more lenses and/or one or more diffraction gratings.

Abstract: A near eye or heads up display system includes a scan beam projector engine, an optical waveguide, and an exit pupil expander (EPE) optically coupled between the scan beam projector engine and the optical waveguide. The EPE improves the optical performance of the display system. The EPE could include a diffusive optical element, diffractive optical element, micro-lens array (MLA), or relay of aspherical lenses. A dual MLA EPE may have cells that prevent cross-talk between adjacent pixels. A dual MLA EPE may have a non-periodic lens array. The optical power of one MLA may be different from the other MLA.

Abstract: An exemplary embodiment of the present invention provides a pattern module for an automobile lamp including: a substrate; a reflective sheet which is provided on the substrate and performs regular reflection; an optical sheet provided on the reflective sheet; an optical synthetic resin which is provided on the optical sheet and guides the light; and a light source which is provided on the substrate.

Abstract: A lens module is disclosed. The lens module includes a substrate assembly and an array of lens units. The substrate assembly includes a main body and a supporting layer formed on the substrate assembly. The main body has a front surface, a rear surface opposite to the front surface, and at least one lateral surface connecting the front surface to the rear surface. The supporting layer has a planar configuration and is formed on the main body. The main body is made of a first material and the supporting layer is made of a second material different from the first material.

Abstract: An imaging device includes an image sensor and an array of wafer lenses. The image sensor has rows and columns of pixels partitioned into an array of sensor subsections. The array of wafer lenses is disposed over the image sensor. Each of the wafer lenses in the array of wafer lenses is optically positioned to focus image light onto a corresponding sensor subsection in the array of sensor subsections. Each sensor subsection includes unlit pixels that do not receive the image light focused from the wafer lenses and each sensor subsection also includes lit pixels that receive image the image light focused by the wafer lenses. A rectangular subset of the lit pixels from each sensor subsection are arranged to capture images.

Abstract: A stereoscopic image processing system, a stereoscopic image processing method and glasses are disclosed. The stereoscopic image processing system transmits a control value for controlling a prism diopter of glasses having a prismatic effect on light irradiated for displaying a left-view image and a right-view image, controls the prism diopter of the glasses based on the transmitted control value, and causes the prismatic effect on the light passing through the glasses.

Abstract: A method of manufacturing a lens array plate includes: forming a light shielding film on a flat surface of a dielectric substrate; forming a plurality of convex lenses on the flat surface of the dielectric substrate by press molding the dielectric substrate with the light shielding film; and forming a stack of two lens array plates manufactured by press molding. The light shielding film is not formed in a lens formation area in which the convex lens is formed.

Abstract: Free space optics (FSO) is a wireless technology that utilizes optical frequencies. Previously available FSO transceivers are restricted to point-to-point links because of the high directivity of laser light used to transmit data. By contrast, various implementations disclosed herein include a multi-beam FSO apparatus that is less reliant on point-to-point links, and includes a lens assembly and a planar array of optical communication devices. The lens assembly includes at least one surface shaped to direct ingress light received substantially within a first angular range towards a focal plane, and to direct egress light away from the focal plane into the first angular range. The planar array includes a plurality of optical communication devices arranged in association with the focal plane of the lens assembly, wherein each of the plurality of optical communication devices characterizes at least one of a plurality of optical communication link endpoints.

Abstract: Embodiments of the present invention relate to a display device, and the display device, comprising: a display panel, comprising a display region and a peripheral region around the display region; and an optical module, disposed on a light-exiting side of the display panel, the optical module configured to shift light emitted from the display panel towards edges of the display panel so as to make a part of the light shift into the peripheral region and emit from the peripheral region.

Abstract: The display device includes: a display panel; and a surface light source section. A transmittance of light transmitted from a front surface of a prism sheet of the surface light source section is lowest when an incident angle thereof is a determined angle. An angle distribution conversion sheet of the surface light source section has a conversion region that causes light incident on a front surface thereof at the determined incident angle to be emitted from a back surface thereof at an emission angle of not larger than 40° or not smaller than 60°, in a cross-sectional view in a direction perpendicular to an extension direction of prisms. When light is applied to the front surface of the angle distribution conversion sheet at the determined incident angle and in the direction in a front view, 20% or more of the light passes through the conversion region.

Abstract: A semiconductor device includes a microlens provided in a pixel area and a monitoring structure provided in a peripheral area that is separate from the pixel area. The monitoring structure has a shape correlated with a shape of the microlens. A shape of a section of the monitoring structure in a plane perpendicular to a substrate is constant.

Abstract: A system and method for creating a robust anti-reflective surface on a fiber end using various etching techniques to create a shallow grating that creates an effective index of refraction region to transition from air or the input material to the material of the fiber optical cable.

Abstract: Systems and methods for implementing array cameras configured to perform super-resolution processing to generate higher resolution super-resolved images using a plurality of captured images and lens stack arrays that can be utilized in array cameras are disclosed. Lens stack arrays in accordance with many embodiments of the invention include lens elements formed on substrates separated by spacers, where the lens elements, substrates and spacers are configured to form a plurality of optical channels, at least one aperture located within each optical channel, at least one spectral filter located within each optical channel, where each spectral filter is configured to pass a specific spectral band of light, and light blocking materials located within the lens stack array to optically isolate the optical channels.

Abstract: Disclosed are an image capture apparatus in which an arrangement relationship between an image sensor and a microlens array that is arranged in front of the image sensor can be varied, and a method for controlling the same. In a state in which a photographic lens including the microlens array is attached, information on the photographic lens and information on the image sensor are used to control a distance between the microlens array and the image sensor, and an aperture value. The microlens array or the image sensor is shifted so that they are arranged at this distance, and the aperture value is set.

Abstract: A communication device includes four signal sending chips, four signal receiving chips, a first optical module and a second optical module. Each of the first optical module and the second optical module includes a main body and four lenses formed on the main body. The first optical module has four signal sending channels corresponding to the four lenses thereof, and the second optical module has four signal receiving channels corresponding to the four lenses thereof. The first optical module and the second optical module are individual from each other.

Abstract: Certain example embodiments of this invention relate to patterned glass that can be used as a cylindrical lens array in a concentrated photovoltaic application, and/or methods of making the same. In certain example embodiments, the lens arrays may be used in combination with strip solar cells and/or single-axis tracking systems. That is, in certain example embodiments, lenses in the lens array may be arranged so as to concentrate incident light onto respective strip solar cells, and the entire assembly may be connected to a single-axis tracking system that is programmed to follow the East-West movement of the sun. A low-iron glass may be used in connection with certain example embodiments. Such techniques may advantageously help to reduce cost per watt related, in part, to the potentially reduced amount of semiconductor material to be used for such example embodiments.

Abstract: A method for manufacturing a three-dimensional integrated circuit. The method includes: 1) adding a non-metallic light-induced catalyst including an alcohol and/or an aldehyde to a thermoplastic carrier material, and molding the resulting mixture by an injection molding machine to form a structural component; 2) irradiating a surface of the structural component with a laser ray to form a line pattern thereon; 3) immersing the structural component in a metal ion solution at room temperature for between 5 and 7 minutes; 4) washing the structural component with distilled water, and immersing the structural component in an aqueous solution including a reducing agent for between 5 and 7 minutes to allow the surface of the structural component to form a metal core; and 5) performing electroless copper plating and medium-phosphorus electroless nickel plating on an area comprising the metal core to yield a conductor track.

Abstract: A laser source assembly (10) comprises a laser system (228), a mounting base (226), and a temperature control system (229). The mounting base (226) supports the laser system (228). The mounting base (226) includes a side wall (232) having a side top (232T) and a side bottom (232B), and a base floor (234) that extends away from the side wall (232) between the side top (232T) and the side bottom (232B). The temperature control system (229) controls the temperature of the laser system (228) and/or the mounting base (226). The temperature control system (229) includes a heat transferor (246) positioned substantially adjacent to an outer surface (2320) of the side wall (232). Heat generated by the laser system (228) is transferred away from the base floor (234) and through the side wall (232) to the heat transferor (246).

Abstract: The present invention relates to a multiple parallel confocal system including: a light source for irradiating light; a relay lens unit through which the light traveling toward a measuring object or the light reflected from the measuring object is passed, the relay lens unit having one or more lens for focusing the light irradiated from the light source; a multiple optical probe having a microlens array on which a plurality of microlenses is arranged, the microlenses into which the focused light through the relay lens unit is incident; and a photo detector for detecting the incident light reflected from the measuring object and passed through the microlenses and the relay lens unit.

Abstract: Light field imaging systems, and in particular light field lenses that can be mated with a variety of conventional cameras (e.g., digital or photographic/film, image and video/movie cameras) to create light field imaging systems. Light field data collected by these light field imaging systems can then be used to produce 2D images, right eye/left eye 3D images, to refocus foreground images and/or background images together or separately (depth of field adjustments), and to move the camera angle, as well as to render and manipulate images using a computer graphics rendering engine and compositing tools. A doublet lenslet array element for use in light field imaging systems includes a first lenslet array element having a first plurality of lenslet array elements, and a second lenslet array element having a first plurality of lenslet array elements, wherein the first lenslet array element is coupled in close proximity to the second lenslet array element.

Abstract: An optical assembly includes a substrate with a first row of apertures and a second row of apertures. A first optical die includes a first plurality of optical transducer elements and is mounted on the substrate such that an optical signal interface of each transducer element is aligned with an aperture of the first row of optical apertures. A second optical die includes a second plurality of optical transducer elements and is mounted on the substrate such that an optical signal interface of each of the second plurality of optical transducer elements is aligned with an aperture of the second row of optical apertures. A connector configured to mate with the optical assembly supports a plurality of optical fibers. A terminal end of each optical fiber protrudes from the connector and extends into one of the apertures when the connector is coupled with the optical assembly.

Abstract: Optical multifiber connectors with multiple termination ferrules and multilens arrays are disclosed. In one aspect, an optical fiber connector includes a multilens array and at least one alignment post. The lenses protrude from a first surface of a transparent plate, and the least one alignment post protrudes from a second surface of the transparent plate opposites the first surface. The connector includes a first standoff frame disposed on the first surface and a second standoff frame disposed on the second surface.

Abstract: Described are an improved automated luminaire and luminaire systems employing a matching lenslet pair beam shaper. The beam shaper employs nesting lenslets that are articulated so that the degree of beam shaping modulation is continuously adjustable across a range of modulation.

Abstract: According to one embodiment, a lens array includes a first lens and a second lens. The first lens includes a plurality of lens elements arrayed in a main scanning direction and configured to condense, with an emission surface, light made incident on an incident surface from an object point. The second lens includes a plurality of lens elements arrayed in the main scanning direction. The lens elements condense again, with an emission surface, light made incident on an incident surface. When the light from the object point is made incident on the incident surface of the first lens and emitted from the emission surface of the second lens, a distance between two points of emission positions on outermost sides on the emission surface of the second lens is substantially the same in the main scanning direction and a sub-scanning direction.

Abstract: In at least one embodiment of the disclosure, an illumination system includes a light source that emits an illumination light flux. A first lens array has a plurality of first small lenses arranged therein. The first small lenses divide the illumination light flux emitted from the light source into a plurality of segmental light fluxes. A second lens array has a plurality of second small lenses arranged therein. The second small lenses have a one-to-one correspondence with the first small lenses and are configured to receive the segmental light fluxes exiting from the first small lenses. At least some of the second small lenses each include a plurality of lens elements disposed in a surface direction that is the same as the second small lenses. A superimposing lens superimposes on an illuminated area the segmental light fluxes exiting from the plurality of second small lenses.

Abstract: In this microlens array, unitary microlens arrays are respectively stacked onto an upper surface and lower surface of a glass plate, and each of the unitary microlens arrays is supported by an upper plate and a lower plate. Marks for alignment are formed on each of the unitary microlens arrays and on the glass plate, and the unitary microlens arrays and the glass plate are stacked onto each other aligned by these marks. This makes it possible to prevent ununiform exposure in scanning exposure using a plurality of microlens arrays.

Abstract: A laser device, having an optical cavity containing a gain medium, a total reflectance reflector positioned within the optical cavity, and a partial reflectance reflector positioned within the optical cavity in a juxtaposed relationship to the total reflectance reflector. The topology of the reflectors are defined by a convergent reflector topology function that converges light emitted within the optical cavity to a laser beam that exits the optical cavity through the partial reflectance reflector by a series of reflections between the total reflectance reflector and the partial reflectance reflector. The laser beam emitted from the optical cavity has a predefined pattern for a given convergent reflector topology.

Abstract: A photovoltaic system is described herein. The photovoltaic system includes an array of micro-concentrators. Each micro-concentrator includes an exterior lens, an interior lens, and a transparent layer that is between the exterior lens and the interior lens. The array of micro-concentrators is optically aligned with an array of photovoltaic cells.

Abstract: A method for displaying a near-eye light field display (NELD) image is disclosed. The method comprises determining a pre-filtered image to be displayed, wherein the pre-filtered image corresponds to a target image. It further comprises displaying the pre-filtered image on a display. Subsequently, it comprises producing a near-eye light field after the pre-filtered image travels through a microlens array adjacent to the display, wherein the near-eye light field is operable to simulate a light field corresponding to the target image. Finally, it comprises altering the near-eye light field using at least one converging lens, wherein the altering allows a user to focus on the target image at an increased depth of field at an increased distance from an eye of the user and wherein the altering increases spatial resolution of said target image.

Abstract: An image reading device includes: a document table on which a document G is placed; a line light source configured to illuminate the document G; an erecting equal-magnification lens array plate configured to receive light reflected from the document G and form an erect equal-magnification image on a predetermined image plane; and a line image sensor configured to receive the erect equal-magnification image formed by the erecting equal-magnification lens array plate. The erecting equal-magnification lens array plate includes: first and second lens array plates formed with a plurality of lenses on both sides thereof; a first shielding member provided on the first outer side surface of the first lens array plate; and a light-shielding wall provided upright on the top surface of the first light-shielding member and configured to shield light reflected by the document table.