Abstract: A light-emitting diode reflector assembly having a heat pipe and a reflector body is provided. The assembly further includes a mounting member for mounting a circuit board having an array of light-emitting diodes. The mounting member and reflector body are made from a thermally-conductive polymer composition comprising: i) about 20% to about 80% by weight of a base polymer matrix such as polycarbonate; and ii) about 20% to about 80% by weight of a thermally-conductive material such as carbon graphite.

Abstract: The present invention provides a lighting head assembly that incorporates a high intensity LED package into an integral housing for further incorporation into other useful lighting devices. The present invention primarily includes two housing components, namely an inner mounting die and an outer enclosure and an optical component for collimating and focusing the light output. The inner and outer components cooperate to retain the LED package, provide electrical and control connections, provide integral heat sink capacity. Further the integrally incorporated optical lens captures, homogenizes and transmits substantially all of the light emitted by a light source, such as a light emitting diode. The present invention transmits 85% of the light emitted by the light source and produces a uniformly illuminated circular image in the far field of the device.

Abstract: This specification discloses an illuminating apparatus having a light source and an optical unit disposed forwardly on the object side of the light source, the optical unit being provided with an incidence surface on which light from the light source is incident, a light emergence surface provided with a Fresnel lens, and a side reflecting surface for totally reflecting the light incident on the incidence surface toward the Fresnel lens, wherein the light totally reflected by the side reflecting surface is refracted by the Fresnel lens and efficiently irradiates the object.

Abstract: A backlight assembly for a liquid crystal display panel, including a lamp housing; a lamp; a diffuser plate; and a plurality of supports. The supports each has first and second members. The first member has a body and a groove formed in the body for holding the lamp and attaching the lamp to the lamp housing. A ring-shape member may be disposed about a section of the lamp for providing cushioning between the lamp and the first member. The second member has an elongated body for supporting the diffuser plate when it attempts to sag or distort.

Abstract: A reflector has a curved part covering the light source and a pair of end parts extending at the two sides of the curved part. The inside surface of each end part has a plurality of substantially parallel projections or depressions. The light-guiding plate has an incident surface and an emission surface substantially perpendicular to the incident surface, the incident surface having a plurality of projections or depressions extending substantially parallel to the emission surface. Also, the reflection surface of the light-guiding plate has projections.

Abstract: An illumination device includes a light source and a planar illuminator for emitting light of the light source portion from one surface thereby to illuminate a liquid crystal panel. The planar illuminator has a reflection surface, on which minute concavo-convex shapes are substantially randomly formed. Surface emission is performed by diffuse reflecting the light irradiated from the light source portion by the reflection surface.

Abstract: The invention relates to an adapter (1) having an integrated ballast and starting arrangement for annular fluorescent lamps (2) having a pin base (3) for connecting them to conventional incandescent lamp sockets. The adapter (1) has a cuboidal housing and has at each end a holder which partially encloses the pin base (3) of the fluorescent lamp (2) or the discharge vessel (12) of the fluorescent lamp (2). The first holder in this case also contains a socket for accommodating and making electrical contact with the pin base (3) and the other holder contains a sliding apparatus for locking the lamp (2).

Abstract: A lighting system has a light string, a mounting bracket, an a plurality of light covers. The light string has a main electrical cord and a plurality of light strands connected to and extending outwardly from the main electrical cord. The mounting bracket is adapted to receive a plurality of fasteners and to support the main electrical cord. The plurality of light covers are each adapted to receive one of the light strands and comprising a connecting member for connecting the light cover to the mounting bracket.

Abstract: An aperture lamp system that facilitates improved reliability and performance in a display system is provided. The aperture lamp system provides improved reliability by providing a second lamp coupled to a first lamp through a coupling aperture. When the first lamp fails, the second lamp can be used to provide illumination to the display. Specifically, light from the second lamp passes through the coupling aperture to the first lamp, where it can exit the first lamp and illuminate the display. Thus, by coupling the first and second lamps together through a coupling aperture, a lamp system is provided where either the first lamp or second lamp can be used to provide illumination for the display. Thus, the first and second lamps provide redundancy, with this redundancy used to improve the reliability of the display system.

Abstract: A lighting apparatus (10) includes a wave guide (14) formed from a translucent material. The wave guide has a top surface (30), a bottom surface (32) that has a pre-defined curvature, and at least one side surface (34) that receives light (40) injected therein. A plurality of microstructures (36) is arranged on selected areas of the bottom surface (32) of the wave guide (14). The plurality of microstructures (36) cooperates with the pre-defined curvature of the bottom surface (32) to scatter at least a portion of the light (40) injected into the at least one side surface (34). The scattered light (42) exits the wave guide (14) through the top surface (30). At least one light emitting diode (16) injects light (40) into the at least one side surface (34) of the wave guide (14). The scattered light (42) that exits the wave guide (14) forms at least one symbol viewable by an associated observer.

Abstract: An illumination system employs a light distribution cylinder with an exterior surface in the form of a plurality of progressively smaller-diameter cylindrical steps. The outside surface of each cylindrical step is interrupted by V-shaped grooves perpendicular to the axis of the cylinder. Each surface of these V-shaped grooves acts to internally reflect divergent light from a light source positioned at the end of the tube. The light distribution cylinders may be solid or hollow and configured with bilateral symmetry to receive light from either end. The illumination system rearranges divergent directional light from a light source into non-directional light emitted in a cylindrical pattern useful for area illumination.

Abstract: A portable utility light includes base support with a rechargeable battery. A light assembly is electrically connected to the rechargeable battery in the base support through a power cord removably connected to the base support. The power cord is adapted for selective connection to an auxiliary power source to provide a direct auxiliary power source for the light assembly. A power supply mechanism is also connected to a second connection portion of the base support to provide another power source to either charge the battery, power the light assembly or both. Another power cord may be employed to facilitate recharging the battery through the auxiliary power source. The work light thus provides multiple sources of power for the light as well as multiple sources of power for recharging the battery.

Abstract: A liquid crystal display apparatus has R, G, and B LEDs and a light guide plate for guiding and diffusing the light entering through an incident surface evenly over the plate. The bottom surface of the light guide plate has a diffusion portion where microdot pattern is printed to diffuse incident light. The liquid crystal display apparatus also has an optical sensor for receiving the light exiting from the light guide plate through a side surface, and a light-shielding member mounted in front of the optical sensor. The light-shielding member has pinholes to block the light incident on the optical sensor in the direction from the incident surface to the opposite surface at an incidence angle greater than a given angle. The luminance of the LEDs is controlled based on the light detected by the optical sensor.

Abstract: A lamp assembly (10) has a carrier (12) with a front side (14) and a backside (16) provided with a plurality of passages (18) therethrough. A circuit board (20) includes a first surface (22) and a second surface (24). A plurality of light sources (26) is mounted on the first surface (22), and the first surface (22) of the circuit board (20) is aligned with the backside (16) of the carrier (12). The plurality of light sources (26) is aligned with the plurality of passages (18) in one-to-one relationship. At least one heat sink (28) is mounted in thermal contact with at least one of the plurality of light sources.

Abstract: A multi-mode visible and infrared lighthead (100) for use as a landing light or searchlight. The multi-mode lighthead incorporates a modular design wherein at least one visible light source (200) and at least one infrared diode (302) are mounted into the rear sector (128) of a housing (102). Visible or infrared light is emitted out of the front sector (122) of the housing (102). Lenses (308) are installed onto the front sector (122) of the housing (102) and sealed to protect the interior of the lighthead (100) from the elements. Alternatively, and in combination, an imaging module (1), and infrared laser (400) and/or a fixed-position searchlight with rangefinder and positioning capability is provided in the multi-mode lighthead(100).

Abstract: A flashlight includes a circuit board received in a housing and having one or more light devices received in a front opening of the housing. One or more chargeable batteries are received in the housing and coupled to the light device for energizing the light device. An actuating device includes a follower rotatably attached to the housing, and a handle pivotally attached to the follower. A gearing device includes a gear coupled to actuate an electric generating device, to generate electric energy to energize the light device. A weight may be secured to the gear of the gearing device, to increase the moment of inertia of the gear, and to facilitate the rotational movement of the gear relative to the housing.

Abstract: The present invention provides an illuminating apparatus capable of carrying out an illumination operation excellently by guiding the light from light sources to an illuminating member efficiently, and having a low price. The illuminating apparatus is provided with a pointer 2 adapted to be turned around a rotary shaft 1, a dial 3 positioned on a rear side of the pointer 2 and constituting a display member to be transmission illuminated, light-emitting diodes 6 positioned on a rear side of the dial 3 and in the vicinity of the rotary shaft 1 and constituting light sources for illuminating index portions 13 of the dial 3, a case 20 positioned on the rear side of the dial 3 and constituting a reflector provided with a reflecting portion 30, and a light guide member 19 positioned on the rear side of the dial 3 and adapted to guide the light from the light-emitting diodes 6 to the rear side of the dial 3.

Abstract: A proportional brake light system having an LED display carried on a motor vehicle and capable of instaneously warning motorists following from behind whether and how quickly the vehicle is likely to stop in response to an operator generated foot pressure being applied to the brake pedal shoe. The brake pedal shoe of the vehicle has a hollow interior, and an optical signal is transmitted along an optical transmission path extending therethrough. As the pressure applied by the operator to the pedal shoe is increased, more of the optical signal being transmitted along the optical transmission path is interrupted. A multi-stage comparator is responsive to an interruption of the optical signal so as to cause a corresponding number of LEDs from the display to be illuminated. The LEDs are arranged in a pair of linear arrays that arc aligned in oppositely extending illumination paths, such that an identical number of LEDs from each array is simultaneously illuminated to create a highly visible bar graph display.

Abstract: For example, the reflector according to the present invention is a reflector made of glass for a projector which is composed of amorphous glass whose thermal expansion coefficient is 30 to 45×10?7/° C. and includes a reflective surface for reflecting light emitted from a light source and an opening for inserting a light source bulb or a conductor to the light source bulb, in which the opening is smoothed by heat-treating the surface thereof after opening-drilling, thus mechanical damage is removed from the processed part.

Abstract: This invention provides an elongated flexible member that is capable of being formed into a plurality of differing shapes so that it can be supported at a variety of locations and has retaining means for retaining it in a desired shape so that a holder connected to one end thereof can hold a flashlight at any desired position relative thereto.