Abstract: A display apparatus at least comprises a touchscreen, and a symmetric diffusion film (SDF) disposed above the touchscreen. The SDF comprises at least two different materials, including a first material mixed with a second material. The first material has a first refractive index and the second material has a second refractive index, and the first refractive index is different from the second refractive index.

Abstract: An alignment film capable of reducing occurrence of alignment disorder in a simple manner, a method of manufacturing the alignment film, a retardation film, a method of manufacturing the retardation film, and a display are provided. An alignment film is configured of an anchor layer and an alignment layer stacked in this order on a base. The alignment layer includes a groove region having a plurality of fine grooves on a surface thereof, and a groove region having a plurality of fine grooves on a surface thereof. The anchor layer provided between the base and the alignment layer is provided with an antistatic function in addition to a function of bringing the alignment layer into close contact with the base.

Abstract: Disclosed is an imaging directional backlight that cooperates with a spatial light modulator to direct light into a first viewing window for one set of image pixels and into a second viewing window for a second set of image pixels. The waveguide may comprise a stepped structure, where the steps further comprise extraction features hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. Such an apparatus may be used to achieve an autostereoscopic display with a flat structure, not requiring fast response speed spatial light modulators.

Abstract: A frame structure applicable to a touch device is disclosed. The frame structure includes a housing carrying a backlight unit; a first frame disposed on the backlight unit and having first and second abutting surfaces that are perpendicular to each other; a panel disposed on the first frame; a polarizer attached to the panel; a second frame disposed outside the housing and the first frame and abutting against the second abutting surface of the first frame; and a cover plate attached to the first abutting surface of the first frame and bonded to the second frame through an adhesive layer, thereby reducing the gap between the cover plate and the panel, enhancing the strength of the cover plate, causing a touch experience to be more sensitive and precise, reducing the use of adhesive and increasing the product yield.

Abstract: A display device includes a substrate, a light emitting element layer that is on the substrate and that includes a light emitting element, an encapsulation thin film layer that is on the substrate and the light emitting element layer and that encapsulates the light emitting element layer, a buffer film on the encapsulation thin film layer and adhered to the encapsulation thin film layer, and an optical film on the buffer film and adhered to the buffer film

Abstract: A display device includes an upper substrate, a lower substrate disposed opposite to the upper substrate, a photosensor disposed between the upper substrate and the lower substrate, a polarizer disposed on the upper substrate, and a retarder disposed on the polarizer, where light of elliptical polarization from outside is converted by a ?/4 phase difference, and transmitted to the photosensor sequentially through the retarder and the polarizer.

Abstract: An optical device whose efficiency and luminance can be further highly improved is provided. The optical device includes carrier generation layer 11 that causes fluorescence to occur with incident light, plasmon excitation layer 12 that excites first surface plasmons with said fluorescence, carrier generation layer 11 being laminated on carrier generation layer 11, and exit layer 13 that extracts the first surface plasmons or light that occurs on an opposite surface of carrier generation layer 11 contact surface of plasmon excitation layer 12 to the outside. Carrier generation layer 11 contains metal particles that excite second surface plasmons with said incident light.

Abstract: Disclosed is an imaging directional backlight polarization recovery apparatus including an imaging directional backlight with at least a polarization sensitive reflection component with optional polarization transformation and redirection elements. Viewing windows may be formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. The base imaging directional backlight systems provide substantially unpolarized light primarily for the illumination of liquid crystal displays (LCDs) resulting in at least 50% loss in light output when using a conventional sheet polarizer as input to the display. The invention herein introduces a polarization sensitive reflecting element to separate desired and undesired polarization states for the purposes of transformation and redirection of the reflected light for usable illumination.

Abstract: An upper frame covers a periphery of a liquid crystal display panel, and a cover plate is bonded onto the upper frame and an upper polarizing plate of the liquid crystal display panel. A step is formed on the cover plate in a portion where the upper frame is bonded to the cover plate. This can reduce a thickness of resin between the upper polarizing plate and the cover plate, thereby reducing an extrusion of the resin into between the cover plate and the upper frame. Thus, a chamfer on a lower side of the cover plate can be reduced in size, and stray light from the lower side of the cover plate can be prevented. This can prevent a white line around a screen.

Abstract: An illumination device includes a laser light source, and a polarization control device configured to control a polarization state of laser light emitted thereon from the laser light source, and to output light having at least two different polarization states.

Abstract: An optical system for laser forming netted dots on a workpiece is provided. The optical system includes a laser light source for emitting a laser light beam having a polarized direction, a polarizing beamsplitter, a first reflecting unit and a second reflecting unit. The polarizing beamsplitter has a splitting axis deviating the polarized direction of the laser light beam 45 degree and is configured for dividing the laser light beam into a transmitting light beam and a reflected light beam with a same energy. The first reflecting unit is configured for reflecting the reflected light beam to a first predetermined position of a workpiece. The second reflecting unit is configured for reflecting the transmitting light beam to a second predetermined position of the workpiece.

Abstract: A method for determining skin irritation is provided. The method uses a source of cross-polarized light to illuminate and area of skin. The cross-polarized light is used to detect subsurface indicators of skin irritation such as erythema, inflammation, dryness, or innervation. The subsurface indicator is then assigned a score.

Abstract: A light emitting apparatus includes a first rod integrator and a second rod integrator supported by a support substrate and a light emitting device disposed between the first rod integrator and the second rod integrator. The light emitting device emits a plurality of light beams to be incident on the first rod integrator and a plurality of light beams to be incident on the second rod integrator. Each of the rod integrators has a light incident surface on which the plurality of light beams are incident, a bent portion that changes the propagating direction of the plurality of incident light beams, and a light exiting surface through which the plurality of light beams mixed with each other exit.

Abstract: There is disclosed a polarization-modulating element for modulating a polarization state of incident light into a predetermined polarization state, the polarization-modulating element being made of an optical material with optical activity and having a circumferentially varying thickness profile.

Abstract: An illumination system and a projection apparatus adopting the illumination system are provided. The projection apparatus comprises the illumination system and a light modulator. The illumination system comprises at least one light source, a curved reflecting component, a phosphor wheel, a polarizer and a half wave retarder. The light provided by the at least one light source passes through the curved reflecting component and the phosphor wheel to provide a first light in a first time sequence and a second light in a second time sequence. The first light and the second light are transformed into a first polarized light and a second polarized light respectively in different time sequences by the polarizer and the half wave retarder.

Abstract: Systems and methods for controlling an object are disclosed. In one embodiment, a system and method pertain to irradiating the object with polarized electromagnetic radiation for a duration of time sufficient to effect a physical change with the object.

Abstract: A lighting device, comprising at least one reflector, at least one luminous region containing phosphor, and at least one laser, wherein the at least one luminous region is adapted to be excited to emit light by at least one laser and at least part of the light emitted by the at least one luminous region is incident on the at least one reflector.

Abstract: A display device with narrowed frame border and a manufacturing method thereof are provided. The display device includes a backlight module, an optical film, and a display panel. The backlight module includes an outer frame and a light source module. The outer frame has a bottom plate and a sidewall connected to the bottom plate, and the light source module is disposed in the outer frame near the sidewall. The optical film is disposed on the backlight module and covers the light source module. One side of the optical film protrudes outside from the sidewall and is bent to attach a portion of the sidewall. The display panel is disposed on the optical film opposite to the backlight module.

Abstract: Techniques, devices and materials for light source devices that convert excitation light into different light via wavelength conversion materials. One example of a light source includes an excitation light source; a wavelength conversion material that absorbs light from the excitation light source and emits a longer wavelength light; and a layer of a transparent material that has plural optical structures in contact to or in close proximity to the wavelength conversion material to receive the emitted light from the wavelength conversion material and to modify the received light to produce output light with a desired spatial pattern associated with the plural optical structures.

Abstract: The instant disclosure relates to a lighting device, which includes a lighting module, a reflector, a light-guiding member, a main body, and a cover. The lighting module includes a base plate and a plurality of light-emitting units mounted on the base plate. The reflector has at least one reflective surface proximate to the base plate. The cross-section of the reflector gradually decreases in a direction toward the base. The light-guiding member is disposed between the lighting module and the reflector. The light-guiding member has a polarizing portion for reflecting light emitted from the light-emitting units. The base plate is disposed on one end of the main body. The cover is selectively disposed on the main body. Thus, an omni-directional lighting device is presented.

Abstract: There is disclosed a polarization-modulating element for modulating a polarization state of incident light into a predetermined polarization state, the polarization-modulating element being made of an optical material with optical activity and having a circumferentially varying thickness profile.

Abstract: A lighting optical includes a first light source for emitting first and second color lights and, and a second light source for emitting a third color light. The first light source includes a semiconductor laser element that emits a linearly polarized laser beam, an excitation light generation unit for spatially and temporally separating the laser beam from semiconductor laser element to generate first and second excitation lights and, a first phosphor that emits a first color light by first excitation light, and a second phosphor that emits a second color light by second excitation light. The excitation light generation unit includes a liquid crystal element that converts the incident laser beam into two lights orthogonal to each other in polarization direction, and a light space separation unit for spatially separating the two lights into first and second excitation lights and according to the difference between the two lights in polarization direction.

Abstract: A polarization illumination system 1000a according to the first invention of the present patent application includes an illumination means having light source means 8, polarizing means 10 for receiving and polarizing light emitted from the light source means, a birefringence medium 20 for receiving and double refracting the light emitted from the light source means and transmitted through the polarizing means. Illumination space S to which the light of the illumination means is illuminated has a polarized reflection object 60 that reflects an incident light in a way that the reflected light partly or fully polarized.

Abstract: An anisotropic dye layer containing a coordination polymer is disclosed. The a polarization control film containing an oriented dichroic dye in which light absorption spectrum of a molecule is reversibly changed by charge passing are disclosed.

Abstract: A reflective polarizing film includes a transparent substrate, and a reflective layer unidirectionally elongated to be formed on one side of the transparent substrate, wherein the reflective layer is composed of nanowire particles, and 80% or more of the nanowire particles are aligned at an angle of ?10° to 10° with respect to an elongation direction.

Abstract: A light source unit includes LED 1 with an emission surface and polarizer 2 that is positioned opposite the emission surface of LED 1 and in which the direction of a transmission axis varies depending on a position in the plane of polarizer 2. Polarizer 2 includes a recessed and protruding structure which transmits, from among light that travels from LED 1 side into polarizer 2, a portion of the light whose polarization direction is parallel to the transmission axis, while reflecting and diffracting a portion of the light whose polarization direction is orthogonal to the transmission axis. The recessed and protruding structure includes diffraction grating 3.

Abstract: The illumination optical system includes, as optical elements, a condenser lens system (3) to condense light from a light source (1), a first fly-eye lens (5) and a second fly-eye lens (6). The light source generates a light emitter having a finite longitudinal length in a first direction orthogonal to an optical axis direction of the illumination optical system. The light source and the optical elements are configured to form the light source images closer to the illumination surface than the second fly-eye lens. The light source and the optical elements are configured to satisfy a condition of P2/P1?2.0. In the condition, P1 represents an array pitch of the light source images in the first direction, and P2 represents an array pitch of the light source images in a second direction orthogonal to the first and optical axis directions.

Abstract: A light source device is provided with an LED having strong directivity, a reflective hood which has an interior reflecting surface for reflecting the illumination light from the light source, and a pair of first and second polarizing reflective plates for polarizing the illumination light from the LED in a specific direction. The first and second polarizing reflective plates have a specific length and width, and a back surface formed from a high reflectance plate. The light source is secured to the reflective hood. A specific interval is provided between the first and second polarizing reflective plates and the reflecting surface of the reflective hood, and a specific interval is provided between the two plates with the optical axis passing through the 0° direction angle of the light source in between.

Abstract: An illumination system for a pico-projector that provides polarization conversion includes the combination of an optical element with a series of stacked, elongated PBSs, where alternate ones of the PBSs have a half-wave plate film applied to a back side thereof and a retarder stack film (RSF) that flips or passes different linear polarization orientations based on the wavelength of light. This combination is placed at a position in the illumination system where the impinging light is collimated to at least some degree.

Abstract: A method is provided for projecting a three-dimensional image. The system includes a first light source, the first light source emitting light in a first direction and a second light source emitting light in a second direction. A beam splitter device is disposed adjacent each light source and an imaging device is disposed adjacent the beam splitter device. Light from the first light source and the second light source travel a common optical path to a projector lens assembly.

Abstract: A system is provided for projecting a three-dimensional image. The system includes a light source and a polarization conversion system for converting light emitted from the light source to circular polarization. A beam splitter device is disposed adjacent the light source to receive light, and an LCoS image device is disposed adjacent the beam splitter device.

Abstract: A system is provided for projecting a three-dimensional image. The system includes a first light source, the first light source emitting light in a first direction and a second light source emitting light in a second direction. A beam splitter device is disposed adjacent each light source and an imaging device is disposed adjacent the beam splitter device. Light from the first light source and the second light source travel a common optical path to a projector lens assembly.

Abstract: A member configured to absorb a predetermined wavelength range for light having an incident angle is located on the first electrode side of a light emitting device and settings are made so that the hue of light emitted in a direction having an angle with respect to the front becomes yellow when the light emitting device emits white light.

Abstract: An electrically conducting wire pattern constructed from nanometer or micrometer dimension wires. The electrically conducting wire pattern can be designed with various geometries, including rectangular, triangular and circular arrays, and combinations of such patterns. The electrically conducting wire pattern can provide improved optically transmissive electrical conductors and can provide improved polarizers for use with various electrical and optical devices and components.

Abstract: An animal deterrence system projects polarised light in order to deter animals. The light may be plane polarised light and the polarisation may be varied over time. The system is particularly suited to deterrence of birds, but may also find application in deterrence of other animals sensitive to polarisation of light, such as bees and wasps. The system may be used on vineyards or orchards, or around airports, or in any other place where birds are problematic.

Abstract: A polarized light source module, having a first region and a second region adjacent to at least one edge of the first region, includes a lamp shell, at least one light source, a polarization generator, and a micro-structure layer. The light source is disposed in the second region. The polarization generator is disposed in the second region, and the polarization generator is used to polarize light generated from the light source. The micro-structure layer is disposed in the first region, and the micro-structure layer is used to reflect the light polarized by the polarization generator toward a direction away from the lamp shell.

Abstract: A light source module includes a light-emitting device, a wavelength conversion device and a polarization and color separation unit. The light-emitting device provides an excitation beam including a first portion beam having a first polarization direction. The wavelength conversion device includes a first wavelength conversion area and a polarization conversion area. When the first portion beam irradiates the first wavelength conversion area, the first portion beam is converted into a first color beam. When the first portion beam irradiates the polarization conversion area, the first polarization direction of the first portion beam is converted to a second polarization direction. The polarization and color separation unit is disposed between the wavelength conversion device and the light-emitting device, and transmits the first portion beam with the first polarization direction, and reflects the first portion beam with the second polarization direction and the first color beam to the same direction.

Abstract: In exemplary implementations of this invention, a flat screen device displays a 3D scene. The 3D display may be viewed by a person who is not wearing any special glasses. The flat screen device displays dynamically changing 3D imagery, with a refresh rate so fast that the device may be used for 3D movies or for interactive, 3D display. The flat screen device comprises a stack of LCD layers with two crossed polarization filters, one filter at each end of the stack. One or more processors control the voltage at each pixel of each LCD layer, in order to control the polarization state rotation induced in light at that pixel. The processor employs an algorithm that models each LCD layer as a spatially-controllable polarization rotator, rather than a conventional spatial light modulator that directly attenuates light. Color display is achieved using field sequential color illumination with monochromatic LCDs.

Abstract: A light source device includes a light source unit concluding LD element (1) for emitting a laser beam polarized in a particular direction and lens (2) for condensing the laser beam emitted from LD element (1) and phosphor layer (3) excited by the laser beam condensed by lens (2) of the light source unit to discharge incoherent light. The incident angle of the laser beam to phosphor layer (3) is larger than 0° and smaller than 90°, and the laser beam enters phosphor layer (3) as P-polarized light.

Abstract: An illumination device includes: an optical element which including a hologram recording medium including a first zone and a second zone and can reproduce an image of a scattering plate; an irradiation device which irradiates the optical element with a coherent light beam such that the light beam is allowed to scan the hologram recording medium; and a polarization control unit provided on an optical path of the light beam to an illuminated zone. The light beams incident on respective positions of the hologram recording medium are allowed to reproduce the image superimposed on the illuminated zone. The polarization control unit controls polarization of the light beams such that the light beam incident on the first zone to travel toward the illuminated zone and the light beam incident on the second zone to travel toward the illuminated zone are configured with different polarization components.

Abstract: The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include at least two tilted dichroic plates having at least two reflectors configured with light collection optics to combine at least two colors of light.

Abstract: An optical multi-layer structure for a flat panel display device is provided. The optical multi-layer structure includes a first optical layer, a second optical layer, a surface strengthening layer, and an adhesive layer. The first optical layer converts a light into a first polarized light. The second optical layer is disposed on the first optical layer and converts the first polarized light into a second polarized light. The surface strengthening layer is disposed on the second optical layer. The adhesive layer is disposed between the second optical layer and the surface strengthening layer, and is in direct contact with the second optical layer and the surface strengthening layer. A flat panel display device having the optical multi-layer structure is also disclosed.

Abstract: An illumination portion is used in an optical encoder which comprises a scale grating, an imaging portion, and a detector portion. A light source outputs light having a wavelength ?. A structured illumination generating portion inputs the light and outputs structured illumination. The structured illumination comprises an illumination fringe pattern oriented transversely to the measuring axis direction. A first filtering lens focuses the structured illumination proximate to a plane of the spatial filter aperture configuration. A spatial filtering aperture configuration includes a central portion that blocks zero-order portions of the structured illumination and an open aperture portion that outputs +1 order and ?1 order portions of the structured illumination to a second filtering lens. The second filtering lens outputs the structured illumination to a plane of the scale grating with an illumination fringe pitch PMI along the measuring axis direction at a plane coinciding with the scale grating.

Abstract: An illumination module comprising a light guide member, a first light source and a first polarizing element is provided. The light guide member is a polarization-maintaining light conductor, and comprises a first end, a second end and a main body. The main body is between the first and the second end, and comprises a light emitting area and a reflective area having a plurality of microstructures. The first light source is near the first end of the light guide member. The first polarizing element is between the first end and the first light source. The light of the first light source entering the first polarizing element is separated into a first polarized light and a second polarized light different from the first polarized light. The second polarized light passing through the first polarizing element and striking the microstructures is reflected as a third polarized light emitted to the outside.

Abstract: An illumination apparatus includes: a polarization conversion element configured to align polarization directions of light emitted from a light source in one polarization direction; a color separation unit configured to separate the light whose polarization directions are aligned in the one polarization direction by the polarization conversion element; and a polarization adjustment element configured to adjust a polarization state of light in a predetermined wavelength band within a wavelength range of the light emitted from the light source. The polarization adjustment element is provided between the polarization conversion element and the color separation unit on an optical path of the light emitted from the light source.

Abstract: A system and method for reducing glare by passing a beam of light emanating from a polarized light source through a polarizing filter having a polarization characteristic different from that of the light beam emanating from the polarized light source.

Abstract: A system that incorporates teachings of the present disclosure may include, for example, a method for generating from a light source a light signal operating in a region of the light spectrum, modifying the light signal with a first polarization device having a first polarization state to generate a polarized light signal directed to a target, modifying a substantially specular reflection and a substantially diffused reflection of the polarized light signal generated from the target with a second polarization device having a second polarization state to generate mixed polarized light signals having a mixed polarization state, and adjusting the mixed polarization state to modify an observable range of subsurfaces of the target. Other embodiments are disclosed.

Abstract: A light source module for stereoscopic display includes multi-primary color lasers which output the light with the same polarization direction. Respective lasers are divided into two groups according to the wavelengths of the output light. A light combiner is provided in the output light path of each laser group and is used for combining the output light of all lasers in the group into one output light path. The light source module further includes a polarization conversion rotary member, and the polarization direction of the two output light is periodically and alternately rotated by 90 degree by self-rotation of the polarization conversion rotary member. An imaging device for stereoscopic display includes the light source module for stereoscopic display, the light combiner and a first optical imaging modulator and a second optical imaging modulator. A stereoscopic display system includes the imaging device for stereoscopic display and a projection lens sub-system.

Abstract: A video image appreciation system 10 of the present invention comprises: a self-luminous display 30; and a circularly-polarized light source 11, wherein the self-luminous display 30 comprises in order: (a) a first wavelength plate 13 having functions to convert circularly-polarized light into linearly-polarized light and vice versa; (b) a polarizing film 15; (c) a linearly-polarized separation film 20; (d) a second wavelength plate 18 having functions to convert circularly-polarized light into linearly-polarized light and vice versa; and (e) a self-luminous panel 16.

Abstract: An image source unit that can efficiently provide image light emitted from an image source to an observer is disclosed. The image source unit includes an image source; and an optical sheet that disposed closer to an observer side than the image source. The optical sheet includes an optical functional layer that includes a light-transmitting portion having a trapezoidal cross section; and the low refractive-index portion having a wedge shape cross section. An oblique side of the wedge shape cross section of the low refractive-index portion form an angle of ?b with respect to a normal line of the sheet surface.