Abstract: The present invention relates to a lighting apparatus using LEDs as light sources and a display using the lighting apparatus, particularly, the present invention provides a lighting apparatus including: a plurality of light sources located on a printed circuit board; and a reflecting unit provided on the printed circuit board; and a spaced area provided inside the reflective unit.

Abstract: Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.

Abstract: An optical imaging system (100) including an elongated lightguide (105) having pluralities of first and second light extractors (110) forming respective first and second patterns along the length of the lightguide is described. Light extracted by the first light extractors exit the lightguide primarily along a first direction toward a target location (150), and light extracted by the second light extractors exit the lightguide primarily along a second direction different from the first direction. The optical imaging system includes a first reflector (114) for receiving light exiting the lightguide primarily along the second direction and reflecting the received light toward the target location. The first reflector forms a first virtual image (132) of the second pattern behind the first reflector. The first pattern and the first virtual image are visible to a viewer (152) viewing the optical imaging system from the target location.

Abstract: A traceable optical device is capable of being tracked by an electronic device having an image sensor. The traceable optical device includes a light guide member, at least one light source, and a shielding member. The light guide member has at least one light-incident surface and a light-emitting surface connected to each other. The light source is configured to emit light into the light guide member from the light-incident surface. The shielding member shields the light guide member and has at least one light transmission area.

Abstract: A face-lit waveguide illumination system employing a planar sheet of an optically transmissive material. A strip of side-emitting LEDs is positioned adjacent to a major surface of the planar sheet and optically coupled to the planar sheet. The planar sheet is configured to guide light using optical transmission and total internal reflection. Light extraction features located along the prevailing path of light propagation extract light from the planar sheet and emit the light towards a surface normal direction.

Abstract: The present invention describes a collimating apparatus 10. The collimating apparatus 10 comprises a light source 12, a waveguide 14 adjacent to the light source 12 and configured to receive light from the light source 12, a light steering optic 16 configured to receive light 30 from the waveguide 14, and a collimating optic 18 configured to collimate light received from the light steering optic 16. The wave guide 14 and the collimating optic 18 are both physically located on a first side of the light steering optic 16. The light steering optic 16 is configured to steer the light 30 received from the waveguide 14 towards the collimating optic 18.

Abstract: A light guide for a lighting device, wherein the light guide extends along a longitudinal axis and has a coupling-out area which runs over the longitudinal axis and from which light can be emitted along the longitudinal axis, and wherein the light guide has, in its longitudinal extent, an end region which is provided with a cover in order to suppress high-intensity light emission in the end region. The cover is formed by laser-machining the light guide material in the end region of the light guide. The invention further relates to a method for forming a cover in the end region of the light guide.

Abstract: In one aspect, a light-mixing system is disclosed, which includes a light pipe having an input surface configured for receiving light from a light source, a light-mixing segment optically coupled to the input surface, and an output surface optically coupled to said light-mixing segment through which light exits the light pipe. A putative vector normal to at least one of the input or the output surface forms a non-zero angle relative to a longitudinal axis of the light-mixing segment. In some embodiments, the non-zero angle can be, for example, about 90 degrees.

Abstract: Dual-sided optical films have extended split spreading structures formed on one major surface, and extended prisms formed on an opposite major surface. One portion of each split spreading structure has a low light spreading characteristic, and another portion has a high light spreading characteristic. For each split spreading structure, the low light spreading portion may be disposed alongside the high light spreading portion. The split spreading structures may be arranged in a one-to-one correspondence with the prisms. Light that enters a given prism from one inclined surface thereof can be associated primarily with light transmitted through the low light spreading portion of the split spreading structure, and light that enters the given prism from the other inclined surface thereof can be associated primarily with light transmitted through the high light spreading portion.

Abstract: A lighting module and an illuminant mouse pad are disclosed. The lighting module includes a plurality of point light sources and a light guide plate; the light guide plate includes a light-emitting section, a light incident section, and a light-reflecting section, the light-reflecting section is connected to the light-emitting section and the light incident section and has a light-reflecting surface; light beams from the point light sources are incident to the light guide plate through the light incident section and emitted out from a light-emitting surface of the light-emitting section after the light beams are conveyed by the light-reflecting surface. The illuminant mouse pad includes the lighting module abovementioned, a base, and a mat; the base includes a receiving part for accommodating the lighting module, and the mat partially covers the lighting module and exposes the light-emitting surface.

Abstract: A tractor trailer coupling assist system includes a back-up sensor mountable to one of a rear surface of the tractor and a forward surface of the trailer. The back-up sensor is configured and disposed to determine a position of the tractor relative to the trailer. A driver feedback system is mountable to one of the tractor and the trailer. The driver feedback system is configured and disposed to provide visual feedback corresponding to the position to the driver.

Abstract: A light source device comprising a light guide plate 11 receiving light from a light source through a side surface and emitting the light through one main surface; a reflection sheet 12 layered on another main surface of the light guide plate 11; and a housing having a back plate 13 provided with a recessed channel for reinforcement and housing the light guide plate 11 and the reflection sheet 11, further comprises a support member (spacer 13f) arranged in the recessed channel and partially supporting the reflection sheet 12 at the opening position of the recessed channel.

Abstract: A backlight module including a carrier plate, a plurality of light sources, at least one low reflective portion, and a modulation film is provided. The carrier plate has a carrier surface carrying the light sources while the low reflective portion is disposed on the carrier surface between an outer light source and a side edge of the carrier plate. The reflectance of the low reflective portion is less than that of the carrier surface. The modulation film is disposed above the light sources while the low reflective portion has a projection area on the modulation film. The projection area has a lower normalized transmission ratio comparing to adjacent areas along an extending direction of the side edge of the carrier plate.

Abstract: In various embodiments, an optoelectronic component is provided. The optoelectronic component may include an electrode, and an organic functional layer structure formed for emitting an electromagnetic radiation or converting an electromagnetic radiation into an electric current. The electrode has a surface which is reflective with respect to the electromagnetic radiation, and wherein the organic functional layer structure is formed on or over the reflective surface of the electrode and is electrically coupled thereto. The reflective surface has a structuring.

Abstract: Direct-lit backlights and associated methods and components are disclosed in which a transflector that partially transmits and partially reflects incident light is shaped to form at least one concave structure facing a back reflector of the backlight. This provides at least one recycling cavity therebetween, the at least one recycling cavity substantially filling the output area of the backlight. At least one light source is disposed behind the output area to inject light into each cavity, and can be positioned in the recycling cavity or behind an aperture in the back reflector. The cavities are preferably shallow and wide, having a width-to-depth ratio of at least 5 or 10, and can provide uniform brightness and color at the output area with sparsely distributed light sources and in a thin profile backlight.

Abstract: A lighting system comprises at least one excitation source (5), preferably an LED, operable to generate and radiate excitation radiation of a first wavelength (?1); a shade (4) configured to at least in part surround the at least one source (5) and remotely located thereto; and at least one phosphor (16) provided in or on at least a part of the shade (4), wherein the phosphor (16) emits radiation of a different wavelength in response to incident excitation radiation. The phosphor can be provided on a part of an outer or inner surface of the shade. Alternatively, or in addition, the phosphor is incorporated within the shade. The lighting system finds particular application as a hanging, a desk, a floor standing, a wall mountable, a spot, an outdoor or an accent lighting fixture.

Abstract: A display apparatus including a display module further including a control board for controlling an operation of the display module to display an image. An outer casing unit accommodates the display module, and a wireless communication unit performs wireless communication with an external communication device. The wireless communication unit includes at least one antenna for transmitting and receiving a radio signal to and from the external communication device, and a wireless communication board converts the radio signal received from the antenna into an electrical signal and transmits the electrical signal to the control board or transmits the electrical signal provided from the control board to the antenna, wherein the antenna and the wireless communication board are arranged to be spatially separated from each other.

Abstract: An illuminated color displaying device having at least one light diffusing waveguide coupled to a plurality of different light sources emitting light at different wavelengths, to provide color modulation.

Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.

Abstract: What is disclosed is a system and method for adaptively reconstructing a depth map of a scene. In one embodiment, upon receiving a mask identifying a region of interest (ROI), a processor changes either a spatial attribute of a pattern of source light projected on the scene by a light modulator which projects an undistorted pattern of light with known spatio-temporal attributes on the scene, or changes an operative resolution of a depth map reconstruction module. A sensing device detects the reflected pattern of light. A depth map of the scene is generated by the depth map reconstruction module by establishing correspondences between spatial attributes in the detected pattern and spatial attributes of the projected undistorted pattern and triangulating the correspondences to characterize differences therebetween. The depth map is such that a spatial resolution in the ROI is higher relative to a spatial resolution of locations not within the ROI.

Abstract: In a backlight (20) including a frame (22) having an opening (22a), and a light guide plate assembly (23) disposed inside the frame (22) and having a light guide plate (24) and a light source (25), the backlight being configured to emit illumination light through the opening (22a), the frame (22) is formed by bending a metal plate and includes a bottom surface portion (22b) facing a rear surface of the light guide plate (24), a peripheral surface portion (22c) standing on a peripheral edge of the bottom surface portion (22b), and an upper surface portion (22d) bent from an upper end of the peripheral surface portion (22c) to form a peripheral edge of the opening, and an outer shape of the light guide plate assembly (23) is smaller than the opening (22a).

Abstract: Light guides comprising light extraction structure arrays and articles comprising such light guides are described.

Abstract: This disclosure discloses an illumination apparatus. The illumination apparatus comprises a cover comprising a second portion and a first portion, and a light source disposed within the cover. An average thickness of the first portion is greater than that of the second portion.

Abstract: Light flux controlling member 140 includes first light flux controlling member 141 and second light flux controlling member 142. First light flux controlling member 141 includes incidence surface 143 on which a part of light emitted from light-emitting element 130 is incident, total reflection surface 144 that reflects a part of light incident on incidence surface 143 toward second light flux controlling member 142, and emission surface 145 that emits a part of light incident on incidence surface 143 and light reflected by total reflection surface 144. Second light flux controlling member 142 includes reflection surface 149 that reflects a part of light emitted from first light flux controlling member 141. Reflection surface 149 is a rotational symmetric surface with the optical axis LA of light-emitting element 130 as a rotation axis.

Abstract: An optical scanner having a scanner glass with a bottom surface includes an LED illumination source and a reflector, disposed below the glass. The illumination source has a target-oriented surface oriented to direct light toward the glass at a non-perpendicular angle. The reflector is oriented to direct light reflected off of the bottom surface toward the target-oriented surface.

Abstract: The present invention relates to an illuminated receptacle. In one particularly preferred embodiment, the receptacle preferably includes a body, a cover for coupling to said body, said cover having one or more sockets for receiving a plug, a tamper resistant (TR) platform associated with each of the one or more sockets, each of the TR platforms being disposed between the body and the cover, each of the TR platforms including a cavity and an aperture extending thru said platform in said cavity, a slider disposed within each of the cavities of the platform and aligned with the openings of a respective socket, and a light source disposed within each of the apertures formed in the platforms, the light sources operatively coupled to electrical power for generating light to illuminate said slider, the light sources being positioned to directly transmit light to the sliders.

Abstract: A light-emitting device includes a base unit, a light-guiding structure with a single light-guiding element disposed on the base unit, and a cover unit having a light-transmitting cover body disposed on the base unit to cover the light-guiding structure. The light-guiding element includes a columnar body having a vertical surrounding peripheral face and a light input surface for receiving light from the light emitting unit, and an expansion body integrally and upwardly extended from the columnar body. The expansion body has a surrounding bottom surface connected with the vertical surrounding peripheral surface, an inclined surrounding peripheral surface connected with the surrounding bottom surface, and a trumpet-shaped top surface connected with the inclined surrounding peripheral surface.

Abstract: Illumination systems that include a plurality of illumination devices disposed within a water environment. Such illumination devices having a tube filled with water, at least one light source positioned to project light into the tube, and connected to the illumination devices via light carrying connectors, include one or more voids within each tube wall which extend substantially longitudinally and cause light incident below a critical angle to be reflected hack into the tube. Projected or reflected light above a critical angle that strikes a portion of the wall without a void is transmitted through the tube wall. By adjusting the ratio of voids to non-voids light can be delivered in a controlled manner.

Abstract: A light source module includes a light source and a light guiding pole. The light guiding pole is made of transparent material and has a light incident surface and at least one side surface connected to the light incident surface. The light source emits light rays, and faces the light incident surface. The light incident surface guides the light rays into the light guide pole, and the at least one side surface totally reflects the light rays. At least one slot is defined at the at least one side surface, and extends along a lengthwise direction of the light guiding pole. The at least one slot destroys the totally reflective path of a portion of the light rays arriving the at least one side surface, and thus the portion of the light rays emits from the at least one side surface.

Abstract: The invention provides a light uniform device and a digital light processing (DLP) projection system applying the said light uniform device. The light uniform device comprises a light incident surface, a light emergent surface and a light uniform portion defined therebetween. The light incident surface and the light emergent surface have a first contour and a second contour, respectively. And a first projection image of the second contour that is projected onto a projection plane forms a rotational angle about a longitudinal axial direction corresponding to a second projection image of the first contour projected onto the projection plane. Thereby, the light sources may simply be disposed in the projection system to provide uniform light beams that entirely cover the DMD (digital micromirror device) after being uniformed by the light uniform device. Neither of the light sources need to be inclined following with the DMD, nor is additional relay lens needed in imaging.

Abstract: A light-mixing type light-emitting apparatus comprises a plurality of light-emitting diodes (LEDs) formed on a transparent carrier, wherein each of the LEDs with a transparent substrate emits light of a distinct color when driven, and the light beams generated from the LEDs are mixed to form a specific color. The transparent carrier setting forth in the present invention provides a mixing zone underlying the plurality of LEDs for the light beams to mix uniformly so as to improve the light-mixing efficiency of the light-emitting apparatus and shorten the mixing distance.

Abstract: A device for controlling LED light beam direction and brightness.

Abstract: A light guiding element includes at least one fixing element and a number of light guiding pipes positioned on the fixing element. Each light guiding pipe includes a light guiding portion and a light scattering portion. The light guiding portion includes a first side surface, and a receiving recess is defined in the first side surface. A refractive index of the light guiding portion is greater than that of air. The light scattering portion includes a second side surface, and a protrusion protrudes from the second side surface. A plurality of diffusion particles are uniformly distributed in the light scattering portion. A refractive index of the light scattering portion is greater than that of air. The protrusion is received in the receiving recess.

Abstract: A back light unit and an image display device are disclosed. The image display device includes a first reflection pattern and a second reflection pattern which are disposed on a plate at a predetermined interval from a light source and which pass light having an acute angle emitted by the light source.

Abstract: Embodiments of the present invention provide a light source structure for optical fiber display device and an optical fiber display device. The light source structure for optical fiber display device comprises a light source. The light source structure for optical fiber display device is of a hollow truncated cone structure, a upper surface, a side surface and a lower surface of the hollow truncated cone structure are constituted by the light source, a reflection cover and an optical fiber connection surface, respectively, a light emitting surface of the light source is disposed to face the optical fiber connection surface, a reflection surface of the reflection cover is provided inside the hollow truncated cone structure, and the optical fiber connection surface has an optical fiber connection region that corresponds to the position of the light source and has a same size as the light source.

Abstract: A light source device having: a light source; first and second light guides extending in a first predetermined direction to guide light in the first predetermined direction and irradiate a document with the light; and a confinement portion that confines light emitted by the light source and is connected to one end of the first light guide and one end of the second light guide, in which the light confined in the confinement portion is reflected off both first and second reflection surfaces provided in the confinement portion, and thereby travels through the first and second light guides in the first predetermined direction.

Abstract: A fiber optic display device reciprocates fiber optics to create decorative optical fiber light displays. The device can include one or more optical fibers contained at one end by a holding member and left suspended freely at the other end. The holding member and optical fibers are functionally attached about a pivot point axis that is across the longitudinal axis of the fibers and the holding member, to a housing. A light source can be affixed to either the holding member or the housing, opposite the freely suspended optical fiber ends, and is oriented to expose and illuminate the optical fibers. A drive means causes the holding member and optical fibers to reciprocate back and forth about the pivot point axis of the holding member.

Abstract: A luminous decoration assembly for automobile contains a decorating member, a stripped light shell, a flexible guiding strap, and at least one light-emitting element. The stripped light shell is connected with the decorating member. The flexible guiding strap is retained in the stripped light shell. The at least one light-emitting element is disposed on one end of the flexible guiding strap so as to project light to one end of the flexible guiding strap, and the light from the flexible guiding strap emits to the stripped light shell.

Abstract: Embodiments of the present invention provide a light source structure for optical fiber display device and an optical fiber display device. The light source structure for optical fiber display device comprises a light source. The light source structure for optical fiber display device is of a hollow truncated cone structure, a upper surface, a side surface and a lower surface of the hollow truncated cone structure are constituted by the light source, a reflection cover and an optical fiber connection surface, respectively, a light emitting surface of the light source is disposed to face the optical fiber connection surface, a reflection surface of the reflection cover is provided inside the hollow truncated cone structure, and the optical fiber connection surface has an optical fiber connection region that corresponds to the position of the light source and has a same size as the light source.

Abstract: A liquid crystal display device capable of efficiently obtaining a high brightness with reduced unevenness in brightness using a single light-emitting section is provided. The liquid crystal display device includes: a liquid crystal panel for controlling display by changing orientation of a liquid crystal composition; a single cylindrical light-source section (634); and a reflecting section (636) provided so that the single cylindrical light-source section is sandwiched between the reflecting section and the liquid crystal panel, for reflecting the light emitted from the single cylindrical light-source section (634) toward the liquid crystal panel, in which at least a part of a sectional shape of a reflecting surface of the reflecting section (636) in a cross section perpendicular to an axial direction of the single cylindrical light-source section (634) is formed based on a parabola whose focal point is a position of the single cylindrical light source section (634).

Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.

Abstract: A light guide decorative plate includes a light permeable insulated decorative plate, and at least one optical fiber embedded in the light permeable insulated decorative plate. The optical fiber has one end exposed from the light permeable insulated decorative plate for guiding light emitted from a light source into the optical fiber, and another end opposite to said one end for exit of the light therethrough. A touch light decorative plate is also disclosed.

Abstract: Provided are an optical element and a light-emitting device with which the illuminated area can be expanded in spite of a small light-emitting area, and that also enable the device to be downsize. The light-emitting device is equipped with sheet-like light-guide sections (a first light-guide section and a second light-guiding section) for guiding light, and a light-emitting member for emitting light. The second light-guide section has a prism section with a saw tooth-like cross-section for changing the direction of the light guided to one of its surfaces. In the prism section, the angle of incidence at which parallel light guided to the second light guide section enters reflective surface of saw teeth at positions away from the LED is set to be greater than the angle of incidence (?) at which the light enters the reflective surface of the saw teeth at the side toward the LED.

Abstract: Described is an illumination structure suitable for a keyboard light of a portable computer. An example illumination structure includes a transparent acrylic board, a light source, and a light guide. The acrylic board may have a front surface and a rear surface, each of which is flat. The light source is provided at a tilt angle q at which an optical axis is almost at a critical angle with respect to the rear surface of the acrylic board. The light guide is located between the light source and the rear surface. Further, light rays radiated from the light source are refracted by the light guide and the optically-transparent panel, and travel towards the front surface, so as to illuminate the surface.

Abstract: An optical fiber light source apparatus, includes a casing, a discharge lamp accommodated inside the casing, a concave reflection mirror, which holds the discharge lamp, and an optical fiber, which receives light from the reflection mirror. The concave reflection mirror, to which the discharge lamp is fixed, is held by a holding member, which has an approximately rectangular flange portion in a front face thereof and a regulating concave portion formed in a side of the flange portion. A guide is provided on the casing in a direction perpendicular to an optical axis, so that the flange portion of the holding member is slidably engaged with the guide. A pressing member, which is pressed with a bias force toward the regulating concave portion of the flange and engages with the regulating concave portion, is provided on the guide, thereby securing the concave reflection mirror.

Abstract: In order to accurately illuminate an object to be illuminated with planar light having little unevenness in intensity, a backlight unit (2) having a simple structure and simple assembly is provided with a reflection sheet (8) which covers a chassis (5) and a substrate (6) and which has through-holes (81) penetrated by light sources (7), wherein the through-holes (811) formed in the center become larger than the through-holes (814) formed at the edges.

Abstract: In one embodiment, a solid-state luminaire has a strip of high power LEDs, where each LED emits light into an optical coupler. Light from the optical coupler is then coupled into a light guide. Light coupled into the light guide is mixed and guided to an exit aperture of the light guide. An optical extractor proximate the exit aperture of the light guide redirects light outward, which is optionally redirected generally downward by a secondary reflector that extends outwardly along the length of the light guide. The secondary reflector may be configured to create a variety of light-emission patterns. The luminaire may be hung from a ceiling, in track lighting, used as a pendant or pedestal fixture, or in other applications.

Abstract: In a backlight assembly and a display apparatus having the backlight assembly, the backlight assembly includes a light source, a light guide, a first reflector, and an optical unit. The light guide is disposed adjacent to the light source, extends substantially parallel with a longitudinal direction of the light source, and refracts light emitted from the light source. The first reflector is disposed under the light guide and reflects the refracted light toward the optical unit. The optical unit is disposed over the first reflector such that an empty space is formed between the optical unit and the first reflector.

Abstract: A shell of mobile communication terminal is provided. The shell includes a shell body made by a transparent or semitransparent material and having an outer surface and an inner surface. The inner surface has patterns formed thereon. A semitransparent-semireflecting layer is formed on the outer surface of the shell body. The patterns can be observed from outside of the shell body when there is light transmitting from the inner surface to the outer surface, and the semitransparent-semireflecting layer presents a mirror effect when there is no light transmitting from the inner surface to the outer surface.

Abstract: Disclosed are a light emitting device package and a lighting system. The light emitting device package includes a sub-mount including a cavity, a light emitting device chip provided in the cavity, an electrode electrically connected to the light emitting chip, a reflective layer formed on a surface of the cavity, a dielectric pattern on the reflective layer, and an encapsulant filled in the cavity.