Abstract: An illumination device includes a light guide plate having an incident end face and a reflecting surface, and a plurality of light sources provided at the incident end face of the light guide plate. The reflecting surface of the light guide plate has a diffusing pattern for diffusing incident light, the diffusing pattern has a plurality of ridgelines arranged perpendicularly to a propagating direction of the incident light to diffuse the incident light, and the ridgelines are discontinuous in the propagating direction.

Abstract: A module for projecting a light beam comprises a light source and a substantially flat support surface on which the source is arranged in a manner such as to emit light from only one side of the surface, and a reflector for reflecting the light emitted by the source. The reflector comprises a curved reflecting surface which extends on one side of the support surface, has a concavity facing towards the support surface, and can reflect the light coming from the source in a principal direction substantially parallel to the support surface of the source. An optical device for a module according to the invention and a vehicle front light assembly comprising a plurality of modules according to the invention form further subjects of the invention.

Abstract: A lighting/signaling device for a motor vehicle having a source arranged in a reflector which produces a light beam that is transmitted from the reflector along an essentially horizontal optical axis of the headlamp device. A movable flap is coupled to a first motor pivoting the movable flap between at least two positions. A casing which coupled to a second motor can be rotated, with respect to a fixed frame, along an axis which is essentially vertical and essentially perpendicular to the optical axis. The casing also includes at least one compartment for receiving and holding the first motor and the second motor.

Abstract: A lighting device of the invention includes: a plurality of light sources; and an optical waveguide, wherein light emitted from the plurality of light sources is incident from a side of the optical waveguide and then emitted from one main plane of the optical waveguide. The optical waveguide includes a first inclined plane for reflecting light emitted from a first light source and then emitting the light from the one main plane, and a second inclined plane for reflecting light emitted from a second light source and then emitting the light from the one main plane at an exit angle different from the light emitted from the first light source, and wherein each of the light sources is independently driven.

Abstract: A universal joint component is used for connecting two members, such as a reflector and a lamp body. The universal joint component includes a shaft, an installation section formed on one end of the shaft, and a spherical head formed on the other end of the shaft. The spherical head includes a joint base, a top end, and at least one gap formed on a side of the spherical head between the top end and the joining base. The gap is formed of a groove or through hole so as to straddle a phantom line substantially passing through a center of the spherical head and perpendicularly intersecting a shaft axis of the shaft. Split head sections are defined by the at least one gap so that the split head sections flexibly deform when the spherical head is inserted into a spherical socket.

Abstract: A light source module comprises a case, a light source, a first air-circulation device, a second air-circulation device and an airflow guide. The case has an airflow outlet, and other components are disposed therein. The airflow guider includes a first stream-guiding part and a second stream-guiding part connected thereto. The first stream-guiding part and the airflow outlet are at a same side of the light source, the second stream-guiding part is over the light source. The first airflow provided by the first air-circulation device passes past the light source, arrives at the first stream-guiding part, flows from the front of the light source towards the back of the light source guided by the second stream-guiding part, and mixes up with the second airflow provided by the second air-circulation device and finally exits from the airflow outlet. Therefore, concentrated heat is prevented at the airflow outlet.

Abstract: A backlight module (20) includes a light guide plate (21) and two light emitters (22). The light guide plate includes an emitting surface (212), a bottom surface (213) opposite to the emitting surface, a plurality of side surfaces interconnecting the emitting surface and bottom surface, and an incident surface (211) disposed at a corner portion thereof adjoining to two adjacent side surfaces. The light guide plate defines a through hole (23) in the corner portion adjacent to the incident surface. The two light emitters are adjacent to and face the incident surface.

Abstract: A backlight unit includes at least one cold cathode fluorescent lamp arranged at a lower end of a bottom cover, external electrode fluorescent lamps arranged on the bottom cover above the cold cathode fluorescent lamp, and inverters disposed on a rear side of the bottom cover for driving the at least one cold cathode fluorescent lamp and the external electrode fluorescent lamps.

Abstract: A light guide lens includes a lens body having a light incidence surface and a light emission surface, a plurality of refraction structures formed on the light incidence surface, and a plurality of reflection structures formed on the light emission surface. The refraction structures send incoming light rays to the light emission surface by refraction. Each of the refraction structures turns incoming light rays coming in all directions into refracted parallel light rays. The refracted parallel light rays arriving from the refraction structures reflect off the corresponding reflection structures and then laterally exit the lens body. The refracted parallel light rays arriving from each of the refraction structures travel to a corresponding one of the reflection structures, such that eventually the incoming light rays exit laterally. The present invention further provides a light emitting diode package structure having the light guide lens.

Abstract: An illumination device includes a control knob having a display portion, a tubular case combined with a back side of the control knob, a light guide plate attached to seal an upper opening of the tubular case, and LEDs disposed at a lower opening of the tubular case. Light emitted from the LEDs is applied to the display portion through the light guide plate. A plurality of retaining projections and a plurality of push-up projections are provided on an inner surface of the tubular case adjacent to the upper opening. An upper surface of an outer edge of the light guide plate is retained by lower ends of the retaining projections, and a lower surface of the outer edge is pushed up by upper ends of the push-up projections so that the light guide plate is held inside the tubular case while being bent upwardly.

Abstract: A cold cathode fluorescent lamp (10) is configured generally as a trapezium having first (11), second (12), third (13) and fourth (14) sides, the lamp (10) has a first end (15) adapted to be connected to an electric supply and a second end (16) adapted to be connected to the electric supply, the first and third sides (11 and 13) being generally parallel to one another and running in opposite directions, the second side (12) extending between the first and third sides (11 and 13) and not at right angles to either the first side (11) or the third side (13), and the fourth side (14) being defined by a first portion (17) extending from the third side (13), a second portion (18) of generally inverted U-shape extending towards the second side (12) and a third portion (19) extending from the second portion (18) towards the first side (11).

Abstract: A vehicle headlight apparatus includes a headlight and an actuator. The actuator horizontally changes a lighting direction of the headlight. The vehicle headlight apparatus drives the actuator such that the actuator horizontally changes the lighting direction of the headlight based on a target swivel angle that is determined based on a travel condition, upon the occurrence of one of the following conditions: (a) the vehicle headlight apparatus detects a dark road section located on a downstream side of a current position of a vehicle, or (b) the headlight is switched on.

Abstract: A vehicle light assembly may be made from a lamp having a plurality of LED light sources arrayed circumferentially around the lamp; a reflector body having a reflector axis generally directed to a field to be illuminated. A plurality of reflective surfaces is formed on the front side, the respective reflective surfaces separated by one or more axially extending walls. A through passage is formed in the reflector body, sized and shaped to receive a portion of the lamp, and intersecting a planar extension of at least one of the axially extending walls separating a first reflective surface from a second reflective surface. The planar extension intersects the lamp between a first LED and a second LED whereby light form the first LED substantially shines toward the first reflective surface and the light from the second LED shines toward the second reflective surface.

Abstract: An adjustable light includes a base member, which is a shell-like member, having a circuit board and a battery set therein and having a pivot portion and a magnet at an end thereof. The base member can be attracted on a surface, which is made of a magnetic attraction material, by the magnet. A pivot base is pivoted on pivot portion of the base member, on which a switch is provided. An illuminating tube member has a transparent tube and a lamp in the tube. The tube has two lids to close two ends thereof. A shaft is inserted through one lid to pivot the illuminating tube member on the pivot base, and a hook mount is pivoted on the other lid.

Abstract: In a vehicle headlight system with a light source (2) and at least one reflector (1) for shaping the light emitted by the light source into a high beam and a low beam, and with a shield (7) adjustable via an actuating element (9) between a position in which the light from the light source (2) is blocked across a maximum cross section and an essentially transmissive position in which this light is substantially allowed to pass through, the actuating element (9) adapted for adjusting the shield (7) in a plurality of intermediate positions between the maximal blocking and the essentially transmissive position in which intermediate position the blocked cross section is less than the maximal cross section.

Abstract: A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display displaying a predetermined image includes: a light source which emits light; a light guide panel having an incident surface facing the light source and which totally reflects light incident through the incident surface toward the flat panel display; and a holographic pattern that includes a plurality of diffraction gratings that are continuously repeated on at least one of an exit surface of the light guide panel and the opposing surface and diffracts light incident into the light guide panel. A depth of the diffraction grating progressively increases away from the incident surface along a length direction of the light guide panel.

Abstract: A light extraction plate can be used with a light emitting diode (LED) to efficiently extract and provide control over the spatial distribution of extracted light in terms of intensity and angle. The extraction plate can have millions of optical micro-elements and can be manufactured independently of the LED using conventional integrated circuit (IC) fabrication techniques. The extraction plate is preferably attached or bonded to an LED surface.

Abstract: The present invention is broadly directed towards a receiving container for an LCD apparatus for securing a lamp and lamp wiring connected to a lamp. The receiving container has features for substantially preventing the lamp wiring from being disconnected from the lamp. For example, a first through-hole for receiving the lamp wiring, a first trench, securing members, and securing projections are utilized to substantially prevent lamp wiring from being disconnected from a lamp. Additionally, the LCD apparatus is easily handled, dissipates heat effectively, and has a light weight.

Abstract: An illumination device (1,10,20,41) for illuminating an examination room (33) of an imaging medical examination device (31) has illuminants (7,21,55), which emit light when energized and can be electrically connected to a power source via connecting means (5A,5B,15A, . . . 15D), at least two of the illuminants (7,21,55) being connected by means of an electrical supply line (8) and the electrical supply line (8) having at least one high frequency filter (9,11) for reducing the interaction of the supply line (8) with a high frequency field.

Abstract: A light illumination system for projecting a color image to a digital micro-mirror display (DMD) panel includes a light-emitting diode (LED) illumination assembly (101, 102, 103), a dichroic combiner (107) for providing a single light source and a condenser lens system (FIGS. 20-23) for directing light from the single light source to the DMD panel. The invention provides a cost effective and efficient system for providing a non-polarized uniform light source to a DMD panel.