Abstract: A backlight device (lighting device) (12) according to the present invention includes a chassis (14) having an opened section (14b), optical members (15) disposed to cover the opened section (14b) in the chassis (14), LEDs (light source) (17) disposed outside of the chassis (14), and lens members (light guide members) (20) disposed in such a structure as to penetrate the chassis (14), the lens members guiding the light from the LEDs (17) into the chassis (14). An LED housing chassis (light source housing member) (19) that stores therein the LEDs (17) is attached to the chassis (14).

Abstract: An illumination device for producing a light strip along a predetermined distance includes light sources and light conductors, wherein light of a first one of the light sources is distributable along a first section of the distance by a first one of the light conductors up to an end region of the first light conductor, wherein light of a second one of the light sources is distributable along a second section of the distance by a second one of the light conductors up to an end region of the second light conductor, and wherein the end region of the first light conductor and the end region of the second light conductor are arranged adjacent one another along the distance.

Abstract: A luminous keyboard device includes a keypad module, a supporting plate, a light-mixing type light-emitting element, a first light guide plate, and a second light guide plate. The supporting plate has a partition part. By the partition part, a first color light beam and a second color light beam from the light-mixing type light-emitting element are not mixed with each other. The first color light beam is guided by the first light guide plate to a first light-outputting zone and a third light-outputting zone of the keypad module. The second color light beam is guided by the second light guide plate to a second light-outputting zone and the third light-outputting zone of the keypad module. The first color light beam and the second color light beam projected on the third light-outputting zone are mixed as a third color light beam.

Abstract: A display apparatus capable of reliably supporting a display panel and making a juncture between displays inconspicuous is provided. A display includes a liquid crystal panel having a front surface and a back surface, a module containing a backlight unit for driving the liquid crystal panel, a rear surface side housing for protecting and holding the backlight unit, and a convex lens arranged to cover a frame region of the liquid crystal panel, for guiding light from the front surface of the liquid crystal panel to a front surface side of the frame region and supporting the liquid crystal panel from the front surface.

Abstract: A system for illuminating a reflective display or other material from a planar front device and a method of manufacture thereof. The system includes a light guide plate that conducts light from an edge light source across the face of a reflective display. Micro lenses are formed on the inner or outer surface of the light guide and direct the light conducted in the light guide toward the display. A stepped index layer is formed on the surface of light guide plate containing the micro lenses. The stepped index layer has an index of refraction lower than an index of refraction of the light guide plate to assist in the total internal reflection of light injected into the light guide plate. A top layer protective coat or touch screen can be laminated to the outside of the light guide plate.

Abstract: Light having little color inconsistency is effectively emitted with a simple structure achieving favorable productivity. A plurality of multi-color light emitting diodes comprising a plurality of LED chips having different light emission colors is disposed on the same surface such that the light emitted by the plurality of the multi-color light emitting diodes is mixed and emitted in a illumination device, wherein at least one multi-color light emitting diode from among the plurality of multi-color light emitting diodes is disposed while being rotated by a prescribed angle with reference to one other multi-color light emitting diode in such a manner that when translating the one multi-color light emitting diode so as to overlap with the one other multi-color light emitting diode, LED chips having the same light emission color do not overlap with each other.

Abstract: A backlight module includes a reflector, a light guide plate and a film. The reflector includes a supporting plate and two extending portions, and the extending portions are located on two opposite sides of the supporting plate, respectively. The film includes a main body and two positioning portions, and the positioning portions are located on two opposite sides of the main body, respectively. The light guide plate is located between the supporting plate and the main body. The main body corresponds to the supporting plate, and the positioning portions correspond to the extending portions. The extending portions are bent toward the main body, and the positioning portions are bent toward the supporting plate. The positioning portions are at least partially overlapped with and are fixed to the extending portions, respectively.

Abstract: An LED-based lighting unit for retrofitting a fluorescent light fixture in a transit vehicle has a concave frame or structure conforming to the shape of the fluorescent lighting fixture cavity, connector pins on either end of the frame for secure attachment to sockets of the fluorescent fixture, a plurality of LED modules for illuminating an area of a transit vehicle, a power adapter for receiving and converting an input power supply signal, and a diffusive lens cover. The frame may have rear fins or other features for facilitating dissipation of heat generated by the LEDs. A controller adjusts the intensity of the LEDs based on a reading from a temperature sensor and on a manual brightness setting. The change in light output may be accomplished by reducing a duty cycle of a pulse width modulated (PWM) waveform supplying the LEDs.

Abstract: A device for beam shaping includes a heat dissipation body having an upper side with a planar section and a plurality of laser elements next to one another on the planar section of the upper side that respectively emit a ray bundle having a fast-axis divergence and, perpendicular thereto, a slow-axis divergence. A reflection element is arranged such that the ray bundles of the individual laser elements extend parallel to one another and at an elevation angle of greater than 0° and less than 90° with respect to the planar section after exactly one reflection at the associated reflection element. The reflected ray bundles are stacked in the optical path downstream of the reflection elements in a first plane perpendicular to the beam direction and a connecting line, lying in the first plane, of the centers of the reflected ray bundles extends perpendicular to the direction of the slow axis.

Abstract: A lighting device comprising a plurality of light emitting elements (1), and a beam shaping optics (7) having an entrance aperture (6). Each light emitting element is optically connected to a set of optical fibers (5) each having a first end optically connected to the light emitting element and a second end optically connected to the entrance aperture (6), so as to guide collimated light from the light emitting element to the beam shaping optics (7). The light emitting elements are distributed over an area larger than the entrance aperture (6).

Abstract: A lighting device may be provided that includes: a housing having a top opening and a bottom opening; an optical plate disposed in the top opening; heat sink disposed in the bottom opening; a driving unit which is received in the housing, disposed between the optical plate and the heat sink and receives external electric power; and light source which is received in the housing, disposed between the optical plate and the driving unit, spatially separated from the driving unit and is electrically connected to the driving unit.

Abstract: A cooking appliance includes a muffle having walls to delimit a cooking chamber. The muffle has a front face provided with a loading opening which is delimited peripherally by a front edge of the muffle. A lighting apparatus has at least one light source which is configured to light up the cooking chamber and/or to display information. The at least one light source is disposed outside the cooking chamber and in front of the front edge of the muffle when the cooking appliance is viewed from the front.

Abstract: A lighting device may include a heat sink and a mounting surface provided a prescribed distance over the heat sink. A plurality of light emitting diodes may be provided on the mounting surface. The plurality of light emitting diodes may be positioned a prescribed distance from a point on the mounting surface. An enclosure having a prescribed shape may be provided over the mounting surface and the plurality of light emitting diodes. The enclosure may include luminescent material such that a wavelength of light emitted by the enclosure is different from a wavelength of light emitted by the plurality of light emitting diodes. A bulb may be provided over the heat sink to surround the enclosure.

Abstract: In an exemplary embodiment, a laser light source device includes a laser light source that emits laser light from a laser emission aperture. The laser light source device also includes a condenser lens disposed in front of the laser light source in a laser emission direction to collect the laser light. The laser light source device also includes a fluorescent member disposed in front of the condenser lens in the laser emission direction to receive the laser light collected by the condenser lens and to emit light of a different wavelength from that of the laser light. The laser light source device also includes a light guide that forms a light path of laser light from the laser light source to the condenser lens.

Abstract: An illuminated head-gear assembly includes a cap that may be worn on a user's head. A retainer is removably coupled to the cap. A brim is removably coupled to the retainer. A strap is removably coupled to the cap to adjust a size of the cap. A first sleeve is positionable on the brim to alter an appearance of the brim. A front light emitter is coupled to the cap so the front light emitter emits light. A top light emitter is coupled to the cap so the top light emitter emits light. A motion sensor is coupled to the cap. The motion sensor is operationally coupled to the front and top light emitters so the motion sensor selectively actuates the front and top light emitters. An actuator is coupled to the cap. The actuator is operationally coupled to the motion sensor so the actuator actuates the motion sensor.

Abstract: Lighting apparatus or luminaires for use in wet, humid, or underwater environments are disclosed. The luminaire may include a plastic housing block, port assembly including a copper or copper alloy fitting and transparent port window disposed within the housing block, and a compound LED light-engine unit.

Abstract: The present invention provides a semiconductor-type light source 2, a lens 35, a heat sink member 4, a light control member 6, a driving member 7, and a cover member 8. The cover member 8 is fixed to a fixing surface of the heat sink member 4 such a manner as to be integrated with the semiconductor-type light source 2. The light control member 6 is mounted to the cover member 8 in such a manner as to be changeably movable between a first location and a second location. As a result, the present invention is capable of reducing dispersion in relative position between the semiconductor-type light source 2 and the light control member 6, and reducing dispersion between a light distribution pattern for low beam LP and a light distribution pattern for high beam HP.

Abstract: The present invention relates to a light source unit having at least one LED sub light source unit. Each LED sub light source unit includes three types of LEDs: phosphor converted green LED, orange-red LED with a wavelength of 614 nm-622 nm, and blue LED with a wavelength of 460 nm-476 nm. Light generated by the three types of LEDs is mixed to generate white light.

Abstract: In an indicator apparatus, a prism member includes: a prism member side surface; and a transmitting and reflecting surface that is inclined relative to the prism member side surface, and into which light from a light source is admitted. An adjacent member has an adjacent surface that is adjacent to the prism member side surface. The light from the light source is admitted into the transmitting and reflecting surface when the light source is lit, and passes through the prism member. If the prism member is viewed frontally when the light source is not lit, the adjacent surface is visible by optical reflection at the transmitting and reflecting surface.

Abstract: An LED lamp assembly includes a heat-sink base having insertion notches equiangularly and radially located at a flat inner wall thereof, and a plurality of radiation fins arranged in a radial array, each radiation fin having a plug portion disposed at a top side thereof and respectively inserted into one respective insertion notch of the heat-sink base and fixedly secured thereto using a stamping technique, a lampshade fastened to the radiation fins at the top side, and an insulative connector fastened to the radiation fins at the bottom side.