Abstract: A virtual image display device includes a display that emits display light, a reflective mirror that has a reflective surface, and a housing that houses the display and the reflective mirror and has an opening. The housing includes a wall structure on a portion of a surface of the housing. The wall structure includes a plurality of first walls that face in a first common direction and a plurality of second walls that face in a second common direction different from the first common direction. The plurality of first walls and the plurality of second walls are alternately arranged and are connected to each other one by one along the surface of the housing.

Abstract: An optical unit including a reflection portion, a movable body, a fixed body; and a rotation support mechanism that rotates the movable body with respect to the fixed body in an axial direction as a rotation axis, in which the rotation support mechanism has a U-shaped spring member disposed between the fixed body and the movable body in the axial direction and applies a force in a direction that widens the space between the fixed body and the movable body, the spring member has a rotation-axis first forming member, the movable body has a rotation-axis second forming member, and the rotation-axis first forming member and the rotation-axis second forming member are arranged at positions where a rotation axis passes through a center of gravity position of the movable body.

Abstract: Various embodiments include a camera with folded optics and lens shifting capabilities. In some examples, a folded optics arrangement of the camera may include one or more lens elements and light path folding elements (e.g., prisms). Some embodiments include voice coil motor (VCM) actuator arrangements, carrier arrangements, and/or suspension arrangements to provide autofocus (AF) and/or optical image stabilization (OIS) movement. Furthermore, some embodiments include position sensor arrangements for position sensing with respect to AF and/or OIS movement.

Abstract: A camera module, a camera assembly, and an electronic device are disclosed, which relate to the field of smart devices. The camera module includes a fixing member, a lens assembly, an image sensor, and a focusing assembly. The image sensor is configured to receive light transmitting through the lens assembly. In the focusing assembly, a first light-redirecting member is configured to redirect the light transmitting from the lens assembly to the image sensor; a second light-redirecting member is configured to redirect the light redirected by the first light-redirecting member, and configured to be movable relative to the fixing member to change a transmission distance of the light from the lens assembly to the image sensor.

Abstract: An optical unit includes: a reflection portion that reflects an incident light flux incident from outside on a reflection surface in a reflection direction from an incident direction toward an imaging element; a movable body having the reflection portion and a holder supporting the reflection portion; a fixed body; a rotation support mechanism that causes the movable body to rotate with respect to the fixed body with an axial direction as a rotation axis; and a drive mechanism having a magnet and a coil and causing the movable body to rotate with respect to the fixed body. The magnet is provided at a position not contacting the reflection portion in the holder and on a back side of the reflection surface, and has a parallel surface parallel to the reflection surface. The coil is provided at a position opposing the magnet in the fixed body.

Abstract: The technology relates to a long-range optical device for a firearm with an objective and an eyepiece, through which an observation beam path is formed for aiming at a target, the long-range optical device further comprising an opto-electronic display device, wherein the display device comprises an LCoS display for displaying variable data or a target mark, wherein a display beam path of the display device runs at least partly in the observation beam path for displaying the remote object.

Abstract: The present disclosed relates to a decoration element and a method for preparing the decoration element. decoration element has dichroism expressing different colors depending on a viewing direction, and has improved visibility of the dichroism.

Abstract: An elongated rectangular Rochon polarizer, e.g., having a height to width or depth ratio of at least 2.5, is securely held in a non-adhesive mounting assembly. The mounting assembly includes a plurality of compression elements that press the Rochon polarizer against corresponding reference points to properly align the Rochon polarizer within the mounting assembly. Moreover, air gaps between the Rochon polarizer and the sidewalls of the mounting assembly are provided to minimize thermal conduction between the mounting assembly and the Rochon polarizer and to provide thermal convection to cool the Rochon polarizer, thereby reducing risk of catastrophic delamination of the Rochon polarizer due to thermal effects.

Abstract: A composite sheet includes a first sheet and a second sheet. The first sheet includes a first substrate and a first optical pattern layer disposed on an upper surface of the first substrate. The second sheet is disposed on the first sheet. The second sheeting includes a second substrate and a second optical pattern layer disposed on an upper surface of the second substrate. An extending direction of the first optical pattern layer intersects an extending direction of the second optical pattern layer such that an intersection angle of the extending direction of the first optical pattern layer and the extending direction of the second optical pattern layer is in a range of 40° to 70°.

Abstract: An optical element including a first pattern is provided. The first pattern includes a plurality of light deflection regions arranged along at least one set of first tracks in a first direction, and each first track is a waveform track having a first period T1 and a first amplitude A1.

Abstract: A vehicular lamp fitting, comprising a light guiding plate having a front surface and a back surface, and a light source which emits light guided by the light guiding plate, wherein the front surface includes first light control surfaces, the back surface includes second light control surfaces, and concave portions each of which is disposed between two adjacent second light control surfaces, the first light control surface is a refraction surface which is configured such that the exit angle of the light from the light source in the horizontal direction, which is refracted and exits through the first light control surface, be a predetermined angle, and the second light control surface is a reflection surface which is configured such that the exit angle of the light from the light source in the vertical direction, which exits through the first light control surface, be a predetermined angle.

Abstract: Various embodiments are directed to an apparatus and methods of forming and/or using an apparatus comprising a plurality of device components. An example method includes geometrically optimizing a periodic or aperiodic device comprising a plurality of device components by optimizing a topology, for each device component, from a starting point to have particular optical properties for a particular optical response. Each device component includes a plurality of geometric structures. The optimization includes selecting the starting point for a continuous profile to have the particular optical properties for the particular optical response, iteratively converging the continuous profile to a discrete profile, and, while iteratively converging to the discrete profile, adjusting edges between boundaries of the device components by accounting for fabrication constraints.

Abstract: The present disclosure provides an imaging optical system. In one aspect, the imaging optical system includes, among other things, a light bending element configured to substantially separate electromagnetic radiation into at least two portions, and configured to redirect the at least two portions of said electromagnetic radiation into substantially different directions.

Abstract: An apparatus can be provided which can include a laser arrangement which can be configured to provide a laser radiation, and can include an optical cavity. The optical cavity can include a dispersive optical first arrangement which can be configured to receive and disperse at least one first electro-magnetic radiation so as to provide at least one second electro-magnetic radiation. Such cavity can also include an active optical modulator second arrangement which can be configured to receive and modulate the at least one second radiation so as to provide at least one third electro-magnetic radiation. The optical cavity can further include a dispersive optical third arrangement which can be configured to receive and disperse at least one third electro-magnetic radiation so as to provide at least one fourth electro-magnetic radiation.

Abstract: A projection apparatus comprising a prism assembly 7 including an input sub-prism 1 possessing a first interface surface and an output sub-prism 2 adjacent to the input sub-prism possessing a second interface surface. The second interface surface is spaced from the first interface surface immediately proximate to it and extends over it to receive display light 12 transmitted through the first interface surface. A panel 8 comprising a plurality of selectively adjustable reflecting elements is arranged to receive from the input sub-prism an illumination light totally internally reflected from the first interface surface and selectively to reflect received illumination light back through the input sub-prism for transmission through the first interface surface for receipt as display light 13 by the output prism at said second interface surface.

Abstract: The method according to the invention is based on a first image of a first eye region of a person and a second image of a second eye region of the person, wherein the first eye region contains one of the eyes of the person, for example the right eye, and the second eye region contains the other eye of the person, for example the left eye; one of the images is mirrored, and the mirrored and the non-mirrored image are combined in the position space and/or in the feature space, in order to generate a template of an overlaid image. The template contains biometric features for person recognition.

Abstract: Provided is a prism sheet for a backlight unit capable of attaining desired luminance in the front direction, and securing a sufficient viewing angle in the direction perpendicular to the orientation direction of the prism array. The prism sheet comprises one or more resin layers, an outermost resin layer of the one or more resin layers comprising a prism array, wherein on a surface of at least one of the one or more resin layers, micro linear grooves are formed to be parallel to, or to intersect at an acute angle with, an orientation direction of the prism array. An average number of existing micro linear grooves per unit length in a direction perpendicular to an average orientation direction of the micro linear grooves is preferably no less than 30/mm and no greater than 10,000/mm. The micro linear grooves are preferably irregular in length, width or pitch.

Abstract: A support device for supporting a lens includes a support component. The support component includes a main body, a plurality of first support portions and a plurality of second support portions. Each of the plurality of first support portions is disposed on the main body, has a first support position thereon having a first height, and is configured to rigidly support the lens. Each of the plurality of second support portions is disposed on the main body, has a second support position thereon having a second height, and is configured to flexibly support the lens. When a configuration relationship between the support component and the lens becomes a decoupling relationship, the second height is larger than the first height. When the configuration relationship is changed to a coupling relationship, an absolute difference value between the first and the second heights is less than a threshold.

Abstract: A display apparatus including a directional backlight unit and a method of assembling the display apparatus are disclosed. The display apparatus includes an auxiliary structure coupled to an input coupler and a switch panel module.

Abstract: A prism group, configured to cover a portion of a visible area and a portion of a non-visible area of a display module, includes a first prism and a second prism. The first prism disposed on the visible area includes a main body and a platform. The main body has a first light incident surface, a first light emitting surface and a first inclined surface. The first light incident surface faces to the visible area. The first light emitting surface is nearby the non-visible area and connected to the first light incident surface. The first inclined surface is connected between the first light incident surface and the first light emitting surface. The platform is opposite to the non-visible area and connected to the first light emitting surface. The second prism is disposed between the non-visible area and the platform. A display device having the prism group is also provided.

Abstract: A prism block is provided at least one notch to propagate in the light flux in air, on an optical path from entrance of a light flux via a first portion of the prism block to exit of the light flux via a second portion of the prism block. The notch is configured such that the light flux exiting from inside of the prism block via a first interface of the notch between the prism block and the air re-enters the prism block via a second interface between the air and the prism block, the second interface facing the first interface.

Abstract: An optoelectronic component includes a housing including a base section and a cover section that delimit an interior of the housing, wherein an optoelectronic semiconductor chip is arranged on the base section, the cover section is formed by an optical element, and a reflective element including openings is arranged between the optoelectronic semiconductor chip and an outer side of the optical element.

Abstract: The optical unit includes an objective optical system and a splitting element. The splitting element consists of a first right-angle prism, a second right-angle prism, and a third right-angle prism, and has a surface of incidence and an optical splitting surface. The surface of incidence is provided to the first right-angle prism, and the first right-angle prism is positioned such that the surface of incidence is orthogonal to an optical axis of the objective optical system. The optical splitting surface is provided to a boundary of the second right-angle prism and the third right-angle prism. The second right-angle prism has a first optical path and the third right-angle prism has a second optical path. A first optical image and a second optical image are both formed on the same plane, and an area of the first optical image and an area of the second optical image are separated spatially.

Abstract: A light extraction film for EL elements enables a surface light emitting body to have a good balance between suppression of emission angle dependence of the wavelength of emitted light and improvement of light extraction efficiency and luminance in the normal direction. A surface light emitting body has improved light extraction efficiency and luminance in the normal direction, while being suppressed in emission angle dependence of the wavelength of emitted light. A light extraction film for EL elements comprises a recessed and projected structure having a plurality of spherical projections, each containing a resin and fine particles added into the resin. The content of the fine particles in the spherical projections is 22-55% by mass, and the average maximum diameter (Aave) of the bottom portions of the spherical projections and the volume average particle diameter (P) of the fine particles satisfy the following mathematical formula (1).

Abstract: An optical lens, a backlight module and a display device are provided. The optical lens includes a main body, a light-incident surface, a recessed surface and a light-emitting surface. The main body has a top portion and a bottom portion. The light-incident surface is recessed into the bottom portion of the main body. The recessed surface is recessed into the top portion of the main body and is opposite to the light-incident surface, in which the recessed surface has a plurality of prism surfaces, and each of the prism surfaces has a normal line, and directions of the normal lines are different from each other. The light-emitting surface connects the top portion and the bottom portion.

Abstract: There is provided a light diffusing element made of a thin film capable of realizing low backscattering and a high haze. A light diffusing element according to an embodiment of the present invention includes: a first region having a first refractive index; and a second region having a second refractive index. The first region and the second region form a fine uneven-shaped and spherical shell-shaped boundary.

Abstract: An apparatus can be provided which can include a laser arrangement which can be configured to provide a laser radiation, and can include an optical cavity. The optical cavity can include a dispersive optical first arrangement which can be configured to receive and disperse at least one first electro-magnetic radiation so as to provide at least one second electro-magnetic radiation. Such cavity can also include an active optical modulator second arrangement which can be configured to receive and modulate the at least one second radiation so as to provide at least one third electro-magnetic radiation. The optical cavity can further include a dispersive optical third arrangement which can be configured to receive and disperse at least one third electro-magnetic radiation so as to provide at least one fourth electro-magnetic radiation.

Abstract: A light guide plate has at a bottom surface thereof a recessed strip. The recessed strip has first oblique surfaces and second oblique surfaces, a vertical angle ?1 formed by the first oblique surfaces facing each other is set in a range of 95° to 110° while an apparent vertical angle ?2 formed by the second oblique surfaces facing each other is set in a range of 60° to 75°. When defining one side of each of the first oblique surfaces as a first oblique side and one side of each of the second oblique surfaces as a second oblique side and the total length of the first oblique side and second oblique side as a total oblique side length, the ratio of the oblique side length of the second oblique side to the total oblique side length is set in a range of 40% to 65%.

Abstract: Aspects of the invention relate to techniques for determining pattern optical similarity in lithography. Optical kernel strength values for a first set of layout features and a second set of layout features are computed first. Based on the optical kernel strength values, optical similarity values between the first set of layout features and the second set of layout features are then determined. Subsequently, calibration weight values for the first set of layout features may be determined based on the optical similarity values, which, along with the first set of layout features, may be employed to calibrate lithography process model parameters.

Abstract: According to one embodiment, a lighting device includes a light source, and at least one light distribution control member configured to control distribution of light from the light source. The light distribution control member includes a base member higher in refractive index than air, and two optical control layers located opposite each other with a predetermined space therebetween on either side of the base member. The two optical control layers each includes a first region and a second region formed in correlative patterns. The light distribution control member is configured to control the light distribution based on a change of an overlap between the first and second regions depending on a direction of transmitted light.

Abstract: An optical film includes a substrate, a plurality of first prism structures, and a plurality of second prism structures. The substrate includes a first surface and a second surface opposite thereto. The first prism structures are disposed on the first surface. Each of the first prism structures has plurality sets of first optical surfaces. The first optical surfaces belonging to the same set have the same absolute value of slope, and the first optical surfaces belonging to different sets have different absolute values of slopes, respectively. The second prism structures are disposed on the second surface. Each of the second prism structures has plurality sets of second optical surfaces. The second optical surfaces belonging to the same set have the same absolute value of slope, and the second optical surfaces belonging to different sets have different absolute values of slopes, respectively.

Abstract: The invention provides for compositions and process for fabricating an optical reflector constructed from biocompatible and bioresorbable silk fibroin proteins. For example, the silk retroreflectors may be built based on millimeter size microprism arrays to rotate the image plane of imaged cortical layers, thus enhancing the amount of photons that are detectable in the reflected direction when inserted in a sample to be analyzed, and ultimately increasing in contrast ratio in multiphoton microscopy. Such device can be used as a label-free, biocompatible, bioresorbable, implantable device for various applications ranging from medical imaging/diagnostics, drug/therapeutic delivery, to food chain safety and environmental monitoring.

Abstract: The present disclosure provides an optical component array and method of making an optical component array that can include a plurality of optical components useful for projection devices or other optical devices. The optical component array can be fabricated such that individual optical components having several elements can be assembled in a massively parallel manner and then singulated as individual optical components, and can result in a large reduction in manufacturing cost.

Abstract: An aspect of the disclosed subject matter includes a method of reducing the laser absorption of a beam reverser prism consisting of at least one of the following: increasing a first distance between a first incident point and a chamfered corner, wherein the first incident point is on a first reflective surface of the prism and the chamfered corner is formed between the first reflective surface and a second reflective surface of the prism, wherein the chamfered corner has a chamfered surface; increasing a second distance between a second incident point and the chamfered corner, wherein the second incident point is on the second reflective surface of the prism; and increasing a reflectivity of the chamfered surface of the chamfered corner of the prism. A method of determining a prime cut for an optical component is also disclosed. A laser including at least one prime cut optical component is also disclosed.

Abstract: An optical probe (10) including one or more optical elements (32), and an inner tube (30) to house the optical elements. The inner tube may be made up of at least two cooperating inner tube sections (34, 36) separable from one another along a longitudinal axis of the inner tube.

Abstract: An optical film and a display device having the same are provided. The optical film has a light input face, a light output face opposite to the light input face, and a light-output structure disposed on the light output face. The light-output structure includes a plurality of light output microstructures such as prisms disposed side by side along a first direction on the light output face. Each prism has a first quadrilateral cross section parallel to the first direction. A first side of the quadrilateral cross section is connected to the light output face and includes a first angle with the light output face, wherein the first angles of the prisms continuously arranged have angle values varying in a periodic manner.

Abstract: Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side facet makes an angle with the plane of the light directing film in a range from about 35 degrees to about 55 degrees. Each light directing portion also includes a first base that is defined by the plurality of first side facets and has a first minimum dimension. Each light directing portion also has a first maximum height. Each unitary discrete structure also includes a bonding portion that is primarily for bonding the light directing film to a surface. The bonding portion is disposed on and between the plurality of first side facets and includes a plurality of second side facets.

Abstract: Lightguides, devices incorporating lightguides, processes for making lightguides, and tools used to make lightguides are described. A lightguide includes light extractors arranged in a plurality of regions on a surface of the lightguide. The orientation of light extractors in each region is arranged to enhance uniformity and brightness across a surface of the lightguide and to provide enhanced defect hiding. The efficiency of the light extractors is controlled by the angle of a given light extractor face with respect to a light source illuminating the light guide.

Abstract: An illumination system includes an LED module and an illuminated area. The LED module includes an LED, and a lens mounted in light path of the LED. The lens includes a light source recess, a first light emitting surface, a critical reflecting surface, and a second light emitting surface intersecting with the first light emitting surface and being on same side with the first light emitting surface. The first light emitting surface can receive more light quantity than the second light emitting surface. Although the light emitted from the first light emitting surface may have greater attenuation than the light emitted from the second light emitting surface, light emitted from the first light emitting surface can make up the intensity losses of attenuation as the first light emitting surface receives more light quantity than the second light emitting surface. As a result, the illumination system has a uniform illumination pattern.

Abstract: Provided herein are devices and associated methods for the direction of light, e.g. sunlight. The devices may comprise various stacked optical elements, including wedge prisms and angled-facet minors, such as Fresnel prisms and mirrors. These may be rotated to effect various angles of light redirection. In one embodiment, the invention comprises directional reflectors which enable incident light to be reflected to a target of fixed location. In one embodiment, the target of the directional reflector is a solar energy target such as a thermal solar receiver or photovoltaic element. In another embodiment, the invention comprises directional beam guides which can redirect incident light arriving at a range of angles to a target. In one embodiment the target of the directional beam guide is the interior of a building, wherein directional beam guides are mounted in or on a window to effect light transmission to the target within the building.

Abstract: A first optical prism includes a bonding surface for bonding the first optical prism to a second optical prism, a collar element provided on a non-optical effective surface, a first reference portion provided on the collar element to form a reference surface for positioning, and a second reference portion provided at a position different from the first reference portion, in which the second reference portion is provided in an area where the bonding surface is projected in a normal direction of the reference surface.

Abstract: A brightness enhancement film includes a plurality of linear prisms disposed on a birefringent substrate. A light ray that enters the film from the substrate side and exits the film from the linear prisms side undergoes substantially a same phase retardation for mutually orthogonal polarization states while travelling within the film. The light ray exits the film at an angle from a normal to the substrate that is greater than 20 degrees.

Abstract: An optical substrate having a structured light output surface that comprises rows of laterally arranged snaking, wavy or meandering longitudinal prism structures. The prism structures at the light output surface may be viewed as comprising rows of laterally meandering longitudinal prisms and/or sections of curved segments coupled end-to-end to form the overall meandering longitudinal prism structures. The laterally meandering rows of longitudinal prism structures are arranged in parallel laterally (side-by-side), defining parallel peaks and valleys (a facet is defined between each adjacent peak and valley). In one embodiment, the lateral waviness is regular with a constant or variable wavelength and/or wave amplitude (or extent of lateral deformation). The lateral waviness may generally follow a sinusoidal profile, or other curved profile.

Abstract: Two side-by-side optical paths transmit stereoscopic right side and left side images onto the surface of a single image sensing chip. The single image sensing chip may be placed at various orientations with respect to the lens trains in the optical paths. In some embodiments a single prism is used to turn the light for both the right side and left side images onto the single image sensing chip. In other embodiments one prism is used to turn the light for the right side image and another prism is used to turn the light for the left side image, and the reflective surfaces of the two prisms are substantially coplanar such that the right side and left side images are incident on the single image sensor chip.

Abstract: A camera arrangement for a vehicle includes a camera and a prism. The camera is arranged behind a windshield of the vehicle. The prism is positioned between the windshield and the camera and is coupled to the windshield by a coupling medium. The prism has a light entry surface facing the windshield and a light exit surface facing an optical imaging component of the camera. The light entry surface and/or the light exit surface is non-flat by which the prism at least partially compensates for refraction resulting from curvature of the windshield.

Abstract: An optical sheet having both of an excellent light condensing function and an excellent scratch resistance is provided. An optical sheet includes: a sheet-like main body; at least three or more first unit shaped elements arranged on one surface of the main body; and second unit shaped elements arranged on the one surface of the main body. Each of the second unit shaped elements extend in parallel with in one direction on a sheet surface of the main body. A height H1 of each of the first unit shaped elements from the one surface is higher than a height H2 of each of the second unit shaped elements. A rate of an area occupied by the first unit shaped elements on the one surface is not more than 10.0%, when observed along a normal direction nd relative to the one surface.

Abstract: A transmitter is disclosed including a laser array comprising a plurality of lasers spatially offset from one another and each having a laser output having a unique wavelength. A first prism is positioned to impart a first angular shift to the laser outputs to produce and a second prism is positioned to impart a second angular shift opposite the first angular shift on the outputs. An index modulating element is coupled to one of the first and second prisms and a controller is electrically coupled to the index modulating element to control an angle of light output form the second prism. An optical spectrum reshaper may be positioned between the second prism and the lens and have at least one transmission edge aligned with the wavelength at least one of the lasers.

Abstract: There are provided an optical surface protection film capable of permitting even a visual inspection of a coated body having a fine roughness, such as a prism sheet, to be performed under the condition that the protection film is attached to the coated body and excelling in adhesion reliability without an optical adverse effect on the coated body, and an optical film with the surface protection film. The optical surface protection film (1) has a base material layer (10) and an adhesive layer (12) stacked on one surface of the base material layer. The surface of the base material layer (10) on the side of the adhesive layer (12) has an arithmetic surface average roughness (Ra2) of 0.65 ?m or less. The other surface of the base material layer (10) has an arithmetic surface average roughness (Ra1) of 0.6 ?m or more.

Abstract: Focus arrangements for laser radar and other applications provide compensation of orientation-dependent gravitational forces. A linear stage can be preloaded and provided with balanced linear encoders so that gravitational force induced pitch, yaw, and roll can be reduced, detected, or compensated. Alternatively, movable focus elements can be secured to actuator driven spring assemblies that are controlled to compensate orientation-dependent gravitational forces.

Abstract: An apparatus includes a prism mount that retains a prism. The mount includes a ledge that engages a first side of the prism, a support surface structured that engages a second side of the prism, a retaining member that slidably engages a third side of the prism, and a biasing member that biases the retaining member to an engaged position with the prism. The mount further includes a slot disposed between the ledge and the support surface. The retaining member includes a machine screw, and a nut confines the biasing member between the nut and a prism mount body. The biasing member is retained in a counterbore in the prism mount body, and an end of the machine screw protrudes from the counterbore. The prism mount body further includes an alignment slot at a fixed azimuthal angle, and the laser deposition device includes a protrusion that engages the alignment slot.