Abstract: A vehicle lighting system comprising an additional illumination lamp for additionally illuminating ahead of a vehicle and a control means for controlling turn-on and turn-off of the additional illumination lamp so as to follow a steering angle at which the vehicle is steered. The control means sets a turn-on reference steering angle ?2 for turning on the additional illumination lamp based on the steering angle, a primary turn-off reference steering angle ?1 for turning off the additional illumination lamp at a steering angle which is smaller than the turn-on reference steering angle ?2 and a secondary turn-off reference steering angle ?3 for turning off the additional illumination lamp at a steering angle which is larger than the primary turn-off reference steering angle ?1 when the vehicle is steered to a predetermined steering angle which is larger than the turn-on reference steering angle ?2.

Abstract: A dental curing light including an elongate wand having a proximal end and a distal end, a plurality of LEDs disposed at or near a distal end of the elongate wand and a printed circuit board for mounting the plurality of LEDs. The LEDs include a main through mount LED and a plurality of surface mount LEDs positioned around the main through mount LED. The main LED is through mounted relative to the printed circuit board such that the power connections of the main through mount LED are made through a hole or holes in the printed circuit board. The power connections of the main through mount LED are made on an opposite surface of the printed circuit board relative to the “top” surface to which the surface mount LEDs are mounted.

Abstract: A light emitting diode light system has a plurality of light emitting diodes, a focusing member secured at a fixed distance from the light emitting diodes, and a substrate with a central section in a generally rectangular configuration securing the diodes in a common plane whereby light from the light emitting diodes is focused by the focusing member and projected to a patient for operating and examination purposes.

Abstract: A planar light source device (100) for a display device includes a light guide plate (120) and pluralities of light emitting diodes (110). The light guide plate has a light incident surface (121). The light emitting diodes are located in the vicinity of the light incident surface. Each light emitting diode has a light emission surface opposite to the light incident surface of the light guide plate, and has a diffraction grating (117) provided on the light emission surface for improving a range of divergence of light beams emitted therefrom.

Abstract: An illumination apparatus is disclosed, with which an illumination optical system can be made small while attaining uniform light distribution properties within an irradiation region of light, by properly designing the shape of a reflection member. The illumination apparatus of the present invention includes a light source and a reflection member which reflects toward an irradiated side a first light flux emerging from the light source and having an emergence angle with respect to an irradiation optical axis which is larger than a predetermined angle. The reflection member reflects a light ray of the first light flux for which the emergence angle is maximal in a direction intersecting with the irradiation optical axis, and satisfies the following condition: ?1<?2 where ?1 and ?2 are angles defined by, respectively, a first and a second light ray before and after reflection at the reflection surface.

Abstract: A projection type display apparatus is composed of a light source (101), an illumination optical system (102) for forming illumination light, a reflection type light valve (106) for reflecting the illumination light to form an optical image, a projection optical system (107) for projecting the optical image, and a lens (105) with a positive power. An optical axis (115) of the reflection type light valve, an optical axis (113) of the projection optical system, and an optical axis (114) of the lens with a positive power are matched with each other. The illumination optical system (102) is placed so that the illumination light passes through the lens (105) with a positive power and is reflected from the reflection type light valve (106). An output pupil (108) of the illumination optical system (102) and an entrance pupil (109) of the projection optical system (107) are placed so as to have a conjugate relationship with respect to the lens (105) with a positive power.

Abstract: For light irradiation transversely inclined with respect to the front of a vehicle lighting device that reflects light from a plurality of semiconductor light emitting devices toward the forward part of the lighting device via reflector, a structure is provided in which lights emitted from five semiconductor light emitting devices are reflected toward the forward part of a lighting device via reflector. A reflecting surface of the reflector is a parabolic cylindrical curved surface having a focal line extended horizontally. The five semiconductor light emitting devices are on the focal line at an interval. Each of the directions of the emitted lights is varied for each semiconductor light emitting device with respect to the focal line direction. Consequently, the light emitted from each of the semiconductor light emitting devices is not diffused vertically but only horizontally, thereby forming five oblong light distribution patterns in positions shifted from each other horizontally.

Abstract: A planar light source including a diffusing plate provided at an opening portion of a cabinet, a plurality of point light sources provided along a hollow region formed on a rear face side of the diffusing plate, a reflecting plate provided at inside of a cabinet relative to the diffusing plate by interposing the hollow region therebetween and arranging an end portion thereof on a side of the point light source to be inclined to a front side, and a flexible board provided with a wiring pattern for supplying power to the respective point light sources, in which an end portion of the flexible board is constituted to be arranged at inside of the cabinet by being flexed to a back side of the end portion of the reflecting plate.

Abstract: A light fixture for housing LED units is provided. The light fixture has a housing that has a substantially H-shaped cross section. The housing has a crossbar with a series of mesas defined on its upper surface. A group of LED units is attached to each of the series of mesas, each LED unit being attached with a thin layer of adhesive. The LED units are electrically insulated from the housing by either the adhesive, which may be electrically insulating, or by an electrically insulating coating on the housing.

Abstract: Headlight for motor vehicles, comprising at least one light source and at least one light guide associated with each light source, into which the light emitted by the light source can be coupled via a light coupling surface, wherein each light guide is associated with a light terminator body into which the light from the light guide is passed, wherein the light terminator body has a light output surface and the output light can be imaged through a downstream lens, wherein the at least one light terminator body is fixed on or to a holder and the holder can be pivoted about at least one axis and/or be displaced in at least one plane relative to the at least one lens.

Abstract: An active light source operating system (10,11) for a vehicle (14) includes a light source (50) that generates an initial illumination beam (54). A selective attenuation filter (27,52) forms an emitted illumination beam (56), with an associated light attenuation matrix (32,33), in response to the initial illumination beam (54). A sensor (31) detects an object and generates an object detection signal. A controller (35) is coupled to the selective attenuation filter (27,52) and said sensor (31). The controller (35) attenuates a pixel (104) in the light attenuation matrix (32,33) in response to the object detection signal.

Abstract: An optical throughput condenser re-concentrates light thereby causing light which otherwise would be wasted outside of the useful A? product, also known as optical throughput, of an illuminating system to be redirected back into the useful A? product. The optical throughput condenser includes a thin film having an angle gate such that light striking the surface with a range of incident angles such that the angle of incident is less than or equal to the gate angle (?GATE) transmits through the thin film. Light striking the surface with a range of incident angles such that the angle of incident is grater than the gate angle. reflects back from the thin film. An integrating sphere is positioned such that light reflecting back from the thin film is directed towards the integrating sphere so that the light is redirected towards the angle gate.

Abstract: An LED headlamp array having discrete LED light source modules, where each light source module has an LED light source, optics dedicated to each LED light source, and a faceted reflector.

Abstract: An LED lamp (10) having a substantially concave heat sink (12) having a raised, frusto-conical center (14) surrounded by an outer rim (16). The heat sink (12) is preferably aluminum or other metal and at least the frusto-conical center preferably has a reflective coating. To further aid in heat removal the outer rim (16) can be provided with a plurality of apertures (16a). A side-emitting LED (18) is mounted on the frusto-conical center (14). A cover (26) is fixed to the outer surface (22) and defines a volume (28) between the frusto-conical center (14) and the cover (26). A circuit (30) is located within the volume (28) and an electrical connection (32) provides connection to the LED (18). In another embodiment a cover (26a) is provided with studs (54) and a reflector (42a) is provided with studs (56) that engage barbs (50) formed in a heat sink (12a).

Abstract: Improved method and apparatus for hand-held portable LED illumination. The illumination source includes a plurality of LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LED units, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrical circuit further includes a control circuit for changing a proportion of light output having the first characteristic color spectrum output to that having the second characteristic color spectrum output, and that drives the LEDs with electrical pulses at a frequency high enough that light produced has an appearance to a human user of being continuous rather than pulsed. Still another aspect provides an illumination source including a housing including one or more LEDs; and a control circuit that selectively applies power from a source of electric power to the LEDs, thus controlling a light output color spectrum of the LEDs.

Abstract: The present invention is to provide a structure of an illumination apparatus comprising a sucker mounted in a bottom of a base thereof to provide the base with an adsorptive power. A power supply housing is extended upwardly on a central top portion of the base, wherein a power supply part is mounted in the power supply housing for providing with the electric power and a switch is mounted on the outside of the power supply housing so as to turn on or turn off the electric power provided by the power supply part. An adjustable device is mounted on a top of the power supply housing, wherein a housing is mounted on one end of the adjustable device and a light emitting device is mounted in the housing so as to twist the adjustable device to provide with the purpose of multi-angle adjustments.

Abstract: A license plate system for motorcycle, car, truck or boat including a row of lights supported along an edge of a clear plastic channel so that light from the row enters the interior of the pane through an edge surface of the panel. The front surface of the panel has an area that is textured to form the alpha-numeric characters of the license. The panel is sufficiently thin ( 1/8 to ½ inches) so that Light from the row of lights is confined between the front and rear surfaces of the panel except an area of the front surface that is textured. Therefore the contrast between the illumination of the textured area compared to the smooth area is very pronounced.

Abstract: A luminaire including a lamp, reflector, collimator and optional waveguide. The waveguide can be solid or hollow or include several serially-arranged total internal reflection (TIR) components for redirecting light that has entered the waveguide. In one embodiment, the TIR components are prisms, but are provided without metallized coatings thereby significantly reducing manufacturing costs. In another embodiment, components are arranged in a vertical orientation such that light is directed downward through a collimator or upward, either directly from the lamp or as a result of reflection from the reflector.

Abstract: An apparatus, system, and method for a luminaire with a light emitting device and a deformable reflector well is disclosed herein.

Abstract: A magnetic closure device having an illumination mechanism. The device includes a first detachable closure part that has the illumination mechanism, an electronic circuit, an actuator for operation of the illumination mechanism and the electronic circuit, and a first magnetic fastener with a first approaching surface. The device also includes a second detachable closure part that has a second magnetic fastener, wherein the second magnetic fastener includes a second approaching surface that is capable of forming a magnetically engaged configuration with the first approaching surface. The actuator is disposed adjacent to the first magnetic fastener and within the footprint or projection of the second approaching surface, and is actuated by the separation between the first and second approaching surfaces.