Abstract: In various embodiments, an illumination structure includes a discrete light source disposed proximate a bottom surface of a waveguide and below a depression in a top surface thereof. A top mirror may be disposed above the discrete light source to convert modes of light emitted from the discrete light source into trapped modes, thereby increasing the coupling efficiency of the illumination structure.

Abstract: A lighting device includes a light source, a chassis housing the light source, and a reflection sheet provided in the chassis. The reflection sheet includes a bottom portion and a sloped portion. The bottom portion extends along a surface of the bottom plate and the sloped portion extends from a peripheral edge of the bottom portion. The sheet sloped portion is inclined with respect to the sheet bottom portion toward a light exit side of the lighting device. The reflection sheet includes a border portion and an adjacent portion. The border portion includes a borderline between the bottom portion and the sloped portion and an area along the borderline, and the adjacent portion is provided close to the border portion and on a side far away from the borderline. Light reflectance is higher in the border portion than in the adjacent portion on the surface of the reflection sheet.

Abstract: A lighting device preventing an illumination variation on a surface to be irradiated. The lighting device has a first light emitting surface section (102a) which is a surface formed by rotating a bus with a central axis as a rotation axis in a first angle area (??1????1) of an angle (?) relative to a cross section of the bus which is an intersection line with the cross section perpendicular to a surface (801a) to be irradiated and including the central axis of a lighting lens (100), a second light emitting surface section (102b) formed in a second angle area (?1???180° and ?180°?????1) of the angle (?) so that a light flux emitted toward the surface (801a) increases as compared with the case where the first light emitting surface section (102a) is formed in a whole-angle area (0°??<360°) on the light emitting surface section (102), a third light emitting surface section (102c) formed by the step between the first light emitting surface section (102a) and the second light emitting surface section (102b).

Abstract: A lighting apparatus is disclosed. The disclosed lighting apparatus omni-directionally radiates light emitted from a light emitting diode (LED) in a uniform light intensity. The lighting apparatus may include at least one LED and a reflector to reflect light emitted from the at least one LED. The reflector may include openings that are positioned to correspond to a position of a respective LED. The LED may emit light in a first direction and the reflector may reflect the light in a second direction such that a difference in light intensity at any angle within a first range between 0° to 135° with respect to the first direction is less than or equal 20% of an average light intensity of the entire range, and a light flux within a second range between 135° to 180° is greater than or equal to 5% of the total flux.

Abstract: A light emitting diode (“LED”) backlight assembly. The LED backlight assembly has a bottom container which has a bottom plate and a side edge surrounding the bottom plate, a plurality of light emitting diode printed circuit boards (“LED-PCBs”) on the bottom plate, and a connector which is closely located to edge located LEDs. The connector of the LED-PCB is closely located to an LED driving board, which is disposed at a lateral space of a lateral part of the bottom container to limit a vertical thickness of the backlight light assembly.

Abstract: The embodiments of a light-emitting-diode-based (LED-based) light bulb and an LED assembly described provide mechanisms of reflecting generated by LED emitters toward the back of the LED-based light bulb. An upper substrate and a lower substrate are used to support upper and lower LED emitters. A slanted and reflective surface between the upper substrate and the lower substrate reflects light generated by the lower LED emitters toward the backside of the LED-based light bulb.

Abstract: A reflector assembly for a lighting apparatus, the reflector assembly comprising two or more reflector modules configured for associating with one or more light sources, each reflector module comprising one or more reflectors for being located adjacent to alight source when the reflector module is associated with the one or more light sources, the one or more reflectors configured to reflect light from the adjacent light source. The reflector modules may further comprising a cover plate defining a plurality of light source apertures for allowing a light source to protrude through the cover plate, at least a first of the one or more light source apertures disposed adjacent to an overhead reflector and at least a second of the one or more light source apertures disposed adjacent to a lateral reflector. The reflector assembly can comprising any number of reflector modules and the reflector modules can be arranged in different configurations to create different light distributions with the same reflector modules.

Abstract: A wide angle illumination assembly for mounting on a vehicle has a reflector with a multifaceted reflective surface of that defines a convex arcuate configuration in a predetermined plane and an plurality of LEDs positioned with respect to the multifaceted reflective surface to emit light onto the multifaceted reflective surface. The multifaceted reflective surface is configured and the LEDs are so positioned with respect to the multifaceted reflective surface so that the light emitted from the reflector has a luminous intensity of at least 50% of the maximum intensity of the light in a narrow band through an arc of at least 90° of the reflector in the predetermined plane.

Abstract: A light emitting diode (LED) lighting module is provided including an LED array, and at least one of a diffusing portion and a reflecting portion. The LED array, equipped with at least one LED, may include a side wall which surrounds the at least one LED. The diffusing portion may be detachably coupled to the LED array and may include a diffusion plate which diffuses light emitted from the at least one LED The reflecting portion may be detachably coupled to one of the LED array and the diffusing portion and may reflect light emitted from the at least one LED. The LED array may be selectively coupled with the diffusing portion, the reflecting portion, or both the diffusing portion and the reflecting portion.

Abstract: LED “Chip-on-Board” (COB) metal core printed circuit board (PCB) technology operates in conjunction with high efficiency compact imaging and non-imaging optics to provide a compact emergency light offering high performance luminance levels (higher brightness) and enhanced life, at low cost. Thermal impedance between the LED junction and the heat sink is significantly reduced for COB technology by placing the LED die directly on a high thermal conductivity material substrate thereby increasing temperature dependant life and thermally dependant output power. Additionally, there is no encapsulant or domed optic over the LED thus making it possible to get a much more compact and efficient substantially Etendue preserving collection optic directly over the die.

Abstract: The present invention provides a light-emitting device including a lampshade and a set of light sources arranged within the lampshade. Wherein the lampshade includes a set of light-reflecting structures, each light-reflecting structure in the set of light-reflecting structures is used for respectively reflecting rays in a middle portion of light emitted from a light source corresponding to the light-reflecting structure towards two sides of the corresponding light source. Correspondingly, a backlight unit including the light-emitting device and a display device including the backlight unit are provided. The light-emitting device according to the present invention can improve a Hotspot phenomenon effectively.

Abstract: A lighting apparatus may include a case, a circuit board, a light source including a light emitting diode (LED), and a light controlling layer to reflect light from the light source toward an inside of the case to prevent the light from being directly radiated to an outside of the case.

Abstract: A light bar for illuminating a surface that is substantially perpendicular to the light bar includes an elongated housing extending along an edge of the surface to be illuminated. The housing has a wall adjacent the surface to be illuminated, and at least portions of that wall are transparent. A series of light emitting diodes (LEDs) are mounted within the housing and spaced along the length of the housing for illuminating the surface, and a connector couples the LEDs to an electrical power source for energizing the LEDs to produce light that illuminates the surface.

Abstract: A white light LED-based lighting device may comprise a light assembly including a plurality of white-light LEDs disposed on a substrate. The LEDs may cover the substrate top surface in a density of greater than 50 individual LEDs per square inch. An electrical driver board is electrically connected to the LEDs. A heat sink is thermally connected to the substrate and the LEDs. A reflector assembly may be disposed on the heat sink such that its focal plane is disposed generally adjacent to the LEDs. The device may have a continuous operating temperature of 65 degrees Celsius or lower in a room temperature environment. The LEDs may comprise a top surface area of less than 2 mm2 and be arranged in a series of concentric rings on the substrate with each LED oriented along the circumference thereof. The reflector assembly may be filled at least partially with an impact-resistant polymer material.

Abstract: A light panel is disclosed. The light panel comprises a circuit assembly, a plurality of light sources, a light reflective structure, and a diffuser layer. The light reflective structure has a plurality of concaves, which are continuously connected to form a plurality of ridges. Each of the concaves has an opening formed on the bottom surface thereof, and each of the light sources is disposed corresponding to each of the openings of the concaves. The diffuser layer is supported by the ridges of the light reflective structure. In some aspects of the present invention, the diffuser layer may have a sloping inner surface or is coated with patterned diffuser coatings on the top surface. Each light source can be added with a lens.

Abstract: A projection system is characterized by: a first light source unit and a second light source unit selectively driven in response to operation mode; a light transmitting unit transmitting light emitted from the first light source unit or the second light source unit in the form of surface light; an image generator generating an image in response to an image signal using the light transmitted from the light transmitting unit; and a projection lens system projecting the image by enlarging the image generated by the image generator and projecting the enlarged image.

Abstract: The present invention discloses a projecting apparatus. The apparatus includes light emitting diodes, a light guide plate and a projecting component. The light guide plate is mounted between the light emitting diodes and the projecting component. A switching control valve is mounted between the light guide plate and the projecting component. The switching control valve is switched between an on position and an off position between the light guide plate and the projecting component. In the on position, the switching control valve guides lights of the light guide plate to the projecting component as a light source of the projecting component; in the off position, the switching control valve cuts off the lights guided from the light guide plate to the projecting component to further cut off the light source of the light guide plate. The present invention further discloses a projecting equipment.

Abstract: A lighting apparatus includes a housing, a light emitter located in an interior region of the housing, a driver for the emitter, and a heat sink coupled to the driver. The heat sink includes a plurality of fins for cooling the driver. The apparatus further includes a driver mounting portion having a mounting surface and a side wall. The side wall is coupled to one of the heat sink and the driver so that the plurality of fins of the heat sink are exposed. The mounting surface of the driver mounting portion is coupled to the housing.

Abstract: An optical structure placeable between a backlight array of point light sources and a planar display. The structure distributes light emitted by the point light sources to uniformly illuminate the plane of the display, without introducing significant viewing parallax. The emitted light is partially collimated within a preferred angular viewing range, maximizing the display's luminance when viewed from the normal direction. The structure is highly reflective, such that a substantial portion of any non-emitted light rays are internally reflected by the structure, increasing the likelihood that those rays will be subsequently emitted by the structure.

Abstract: Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.

Abstract: An apparatus, method, or system of lighting units comprising a plurality of lighting elements, such as one or more LEDs, each element having an associated optic which is individually positionable. In embodiments of the present invention, one or more optics are developed using optimization techniques that allow for lighting different target areas in an effective manner by rotating or otherwise positioning the reflectors, refractive lenses, TIR lenses, or other lens types to create a composite beam. The apparatus, method, or system of lighting herein makes it possible to widely vary the types of beams from an available fixture using a small number of inventoried optics and fixtures. In some cases, by using a combination of individual beam patterns, a small set of individual optics would be sufficient to create a majority of the typical and specialized composite beams needed to meet the needs of most lighting projects and target areas.

Abstract: The present invention relates to an optical assembly, a backlight unit, and a display apparatus thereof. According to an embodiment of the present invention, an optical assembly includes a first layer, a plurality of light sources disposed over the first layer, a second layer that is disposed above the first layer and covering the plurality of light sources, and a pattern layer disposed above or in the second layer, wherein the pattern layer includes a plurality of patterns disposed at positions substantially corresponding to the light sources.

Abstract: The present disclosure relates generally to an omnidirectional light optic. In one embodiment, the omnidirectional light includes a plurality of reflectors, wherein each one of the plurality of reflectors comprises at least two reflective sides, wherein each one of the at least two reflective sides has an associated optical axis, wherein each respective optical axis of the at least two reflective sides is located on a common horizontal plane and each one of the at least two reflective sides comprises a curved concave cross-section, a plurality of LEDs, wherein each one of the plurality of reflectors is associated with at least one of the plurality of LEDs and at least one blocking band member with at least one edge that blocks light emitted by the plurality of LEDs at common horizontal angles.

Abstract: Described are various embodiments of a length adjustable LED assembly, optical system using same, and method of assembly therefor. In one embodiment, an optical system comprises a first LED and second LED board each comprising a plurality of LEDs operatively mounted thereon along their respective lengths in accordance with a designated array. The second LED board is adjustably fixable in lengthwise overlapping relationship to the first LED board to provide a length adjustable extension thereto and substantially continuously maintain an optical system output over a combined length of the first LED board and the second LED board.

Abstract: A lamp unit includes: a light source array including a plurality of light sources aligned into an array; a mount portion on which the light source array is to be mounted; a first reflecting mirror configured to reflect light from the light sources, wherein the first reflecting mirror is parabolic cylindrical or hyperbolic cylindrical and is provided at least either above and below the light source array; and an optical member configured to project direct light from the light sources and reflected light from the first reflecting mirror to the front.

Abstract: Provided are solid state backlight devices and methods for forming the same. A solid state backlight unit according to some embodiments of the invention includes a housing having a major surface and multiple LEDs on a first surface of the major surface. The solid state backlight unit also includes a specular reflector proximate to the first surface of the major surface and oriented substantially perpendicular to the first surface of the major surface.

Abstract: A light emitting module according to embodiments includes a substrate. In addition, the light emitting module according to the embodiments includes a light emitting element which is provided on the substrate. In addition, the light emitting module according to the embodiments includes a reflecting member which is provided on the substrate, formed of a material containing silicon resin, of which Martens hardness of the material is any value in a range of 0.05 (N/mm2) or more and 10.0 (N/mm2) or less, and which reflects light which is emitted from the light emitting element.

Abstract: An lighting fixture includes a reflector, a pedestal, and a lighting module. The reflector includes an opening formed therethrough and the pedestal is positioned in communication with the opening. The lighting module is coupled to the pedestal. In certain embodiments, the reflector is organically shaped and includes four parts, where each part is substantially S-shaped. The lighting module includes a frame and indirect LEDs that emit light toward the interior surface of the reflector. The indirect LEDs are positioned below the lowest portions of the reflector a are positioned at an angle with respect to a horizontal axis. The frame includes a cut-off wall that provides for a cut-off angle for the indirect LEDs and one or more fins. The frame and the pedestal provide thermal management for the LEDs. In certain embodiments, the lighting module also includes one or more of direct LEDs and an active cooling module.

Abstract: The present invention is directed to a beacon light with a light emitting diode (LED) reflector optic. In one embodiment, the LED reflector optic includes a reflector having a plurality of reflecting surfaces and being associated with at least one optical axis, each reflecting surface including a curved cross-section and at least one LED positioned at a focal distance of a respective one of the plurality of reflecting surfaces.

Abstract: An LED illumination device is provided. The device facilitates the use of thermoplastic reflectors using heat management principles.

Abstract: A lighting device comprises a housing; a coupling member coupled to the housing, comprising a first outer surface and a second outer surface, and having an insertion recess disposed between the first outer surface and the second outer surface; a first reflector disposed between the first outer surface of the coupling member and the housing; a second reflector disposed between the second outer surface of coupling member and the housing; and a light source unit comprising a first body and a second body, wherein the first body comprises a first coupling unit coupled to a first inner surface of the insertion recess and a first light emitting device emitting lights to the first reflector, wherein the second body comprises a second coupling unit coupled to a second inner surface of the insertion recess and a second light emitting device emitting lights to the second reflector.

Abstract: An outdoor lighting device for lighting a target, particularly for use in street lighting, includes a support structure and a lighting unit stably associated with the support structure and having one or more light beam sources of LED type, with preset FWHM values, and one or more reflecting surfaces designed to at least partially reflect light beams. At least a first one of the LED sources has the FWHM of its luminous spectrum totally reflected by one or more of the reflecting surfaces and totally projected towards the target for increased lighting efficiency.

Abstract: Collimating light engines, methods of making collimating light engines, and articles incorporating collimating light engines are disclosed. In one aspect, a light source and circuitry can be disposed between a reflector and a reflective baffle to form a collimating light engine. The light source is at least partially obscured from view by the reflective baffle. Light emitted from the light source is partially collimated upon leaving the light engine.

Abstract: A side-view type light emitting device includes a package body, a lead frame, and a light emitting diode (LED). The package body has a first surface provided as a mount surface, a second surface disposed on a side opposite to the first surface, and lateral surfaces disposed between the first surface and the second surface. The package body includes a recessed portion disposed on a lateral surface corresponding to a light emitting surface of the lateral surfaces. The lead frame is disposed in the package body. The LED chip is mounted on a bottom surface of the recessed portion. Protrusion parts protruding toward the LED chip are disposed in regions adjacent to the LED chip of facing inner sidewalls of the recessed portion, respectively.

Abstract: LED packages are disclosed having encapsulants which can have at least one reflective surface. Due to the reflection of light, the encapsulant can serve as a mixing chamber and thus can produce light of a more uniform color. The encapsulant can take many different shapes, including that of a cylinder and that of a rectangular prism. Encapsulants can also include scatterers to further mix the light.

Abstract: The present relates to an Light Emitting Diode (LED) assembly. The LED assembly comprises at least one LED mounted on an LED board, a heat sink, a driver assembly, and a height adjustment sleeve. The heat sink dissipates heat generated by the at least one LED. The driver assembly electrically and mechanically connects the LED assembly in a light source. The height adjustment sleeve adjusts a luminous centre of the LED assembly, the height adjustment sleeve being positioned between the driver assembly and the heat sink. The LED assembly also comprises at least one reflector, for directing a light generated by the at least one LED mounted on the LED board.

Abstract: The present invention is directed to a beacon light with a light emitting diode (LED) reflector optic. In one embodiment, the LED reflector optic includes a reflector having a plurality of reflecting surfaces and being associated with at least one optical axis, each reflecting surface including a curved cross-section and at least one LED positioned at a focal distance of a respective one of the plurality of reflecting surfaces.

Abstract: A power-saving lighting apparatus including an upper housing, a bottom cover assembled with the upper housing, a lighting module and a positioning member is provided. The lighting module is disposed between the upper housing and the bottom cover, and the lighting module is mechanically supported by the bottom cover. The positioning member is disposed on the lighting module, wherein a relative position of the lighting module and the bottom cover is maintained by the positioning member.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a metal core PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom of the PCB. A thermally-conductive material abuts the bottom surface of the PCB and the back shell portion. A watertight underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. In one embodiment, a quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: Apparatus for processing a substrate are provided herein. In some embodiments, a lamphead for use in substrate processing includes a monolithic member having a contoured surface; a plurality of reflector cavities disposed in the contoured surface, wherein each reflector cavity is shaped to act as a reflector or to receive a replaceable reflector for a lamp; and a plurality of lamp passages, wherein each lamp passage extends into the monolithic member from one of the plurality of reflector cavities.

Abstract: An image reading device includes a light source; a light guiding member; an imaging optical system that reflects the light, which faces a first direction from the object, in a second direction intersecting the first direction by a reflective plane disposed in the first direction of the object, that makes the light, which is reflected by the reflective plane, converge toward the second direction by an emission portion disposed in the second direction of the reflective plane, and that images an erect equal-magnification image of the object in the second direction of the emission portion; and an optical sensor that is disposed in the second direction of the emission portion of the imaging optical system, and detects the erect equal-magnification image that is imaged by the imaging optical system, in which the light guiding member is disposed at an object side of the emission portion in the first direction.

Abstract: A lighting device including a heat radiating body defining a cavity and a circumference, a reflective structure within the cavity, a light emitting module unit on the circumference of the heat radiating body, and a cover disposed under the light emitting module unit and reflecting light emitted from the light emitting module unit to the reflective structure, such light then being reflected by the reflective structure to the outside of the heat radiating body.

Abstract: A rear position light-emitting diode (LED) light module for use on an aircraft. The light module includes a single printed circuit board (PCB), at least one light emitting diode attached to a first surface of the PCB and a single reflector and baffle device attached to the PCB. The baffle device provides an illumination pattern having a predefined angular pattern in the first plane. The illumination pattern does not overlap with light illuminated by port and starboard position lights of the aircraft. The baffle device includes a base section being planar, the base section comprises a cavity, first and second side sections attached to a first surface of the base section on opposing sides of the cavity, the first and second side sections intersect the first plane but not the second plane and a plurality of snap fittings attached to a second side of the base section.

Abstract: An illumination device includes a housing having a light-emitting surface through which illumination light is irradiated and a plurality of LED units fixed to the housing in specified positions to emit the illumination light. The illumination device further includes a plurality of reflectors each having a reflection surface for reflecting the illumination light emitted from each of the LED units in a specified direction and a reflector attachment plate removably fixed to the housing. Each of the reflectors is adjustably attached to the reflector attachment plate in a specified orientation.

Abstract: An efficient LED array. In an aspect, an LED apparatus includes a metal substrate having a reflective surface, and LED chips mounted directly to the reflective surface to allow for thermal dissipation, and wherein at least a portion of the LED chips are spaced apart from each other to allow light to reflect from a portion of the reflective surface that is located between the portion of the LED chips. In another aspect, a method includes configuring a metal substrate to have a reflective surface, and mounting a plurality of LED chips directly to the reflective surface of the metal substrate to allow for thermal dissipation, and wherein at least a portion of the LED chips are spaced apart from each other to allow light to reflect from a portion of the reflective surface that is located between the portion of the LED chips.

Abstract: A lighting apparatus includes a substrate having a plurality of light-emitting elements mounted thereto. The substrate includes a surface on which a plurality of light-emitting elements are mounted and stress absorbing elements arranged on imaginary straight lines connecting portions for mounting the substrate with each other. The lighting apparatus includes a main body in contact with and fixed to a back surface of the substrate. The lighting apparatus also includes a light directing member in contact with a front surface of the substrate, a plurality of openings into which the plurality of light-emitting elements of the substrate are inserted, and a plurality of reflective surfaces.

Abstract: A light emitting diode (“LED”) backlight assembly. The LED backlight assembly has a bottom container which has a bottom plate and a side edge surrounding the bottom plate, a plurality of light emitting diode printed circuit boards (“LED-PCBs”) on the bottom plate, and a connector which is closely located to edge located LEDs. The connector of the LED-PCB is closely located to an LED driving board, which is disposed at a lateral space of a lateral part of the bottom container to limit a vertical thickness of the backlight light assembly.

Abstract: An LED illumination structure without a light guide plate (LGP) includes an optical bottom plate, a plurality of LED illumination components arranged at least along one side edge of the optical bottom plate and a plurality of reflecting structures parallel to the LED illumination components formed on the optical bottom plate from two opposite side edges of the optical bottom plate to a center of the optical bottom plate. The reflecting structures are in a shape of tapered embossment and include a first side facing the center of the optical bottom plate and a second side facing the side edges of the optical bottom plate. An optical film is arranged in a raising direction of the reflecting structures of the optical bottom plate. The present invention is applicable to an illumination lamp for generating a uniform light emitting or may further be an illumination structure for projecting a light source of a bare-eyed 3D image.

Abstract: An LED lighting device includes a plurality of LED chips and a pair of side mounting faces. The distance between the side mounting faces becomes smaller from the base side toward the extremity side in the x direction. The side mounting faces face mutually opposite sides in the y direction. Also, the distance between the side mounting faces becomes shorter from the back side toward the front side in the z direction that is perpendicular to both the x direction and the y direction. The plurality of LED chips include LED chips mounted on the pair of side mounting faces. The LED lighting device illuminates an illumination target with a uniform illuminance distribution.

Abstract: Disclosed are an illumination unit and a display apparatus using the same. The illumination unit includes a first illumination unit including a first light source module, a second illumination unit including a second light source module, and a bracket located between the first and second illumination units to connect the illumination units to each other. The bracket includes a first body portion on which the first light source module is placed, a second body portion on which the second light source module is placed, and a connecting portion located between the first and second body portions to connect the body portions to each other. The connecting portion has a first distance from a first end of the first or second body portion and a second distance from a second end of the first or second body portion, and the second distance is greater than the first distance.