Abstract: An underwater light includes a high intensity lamp placed in an enclosure that allows for easy lamp replacement in case of breakage or natural failure. Electrical wires are soldered to a metal fitting on the lamp. The metal fitting is received in a plastic nipple and the space between the fitting and nipple is filled with a sealant, leaving the ends of the wires exposed. The wires are connected by water proof twist-on wire connectors and the end of the lamp is enclosed by a rubber boot and an end cap. When the lamp burns out, it is easily replaced by fishing the light out of the water, removing the rubber boot to expose the twist-on wire connectors. The twist-on wire connectors are removed and the old lamp discarded. A new lamp is installed in reverse order.

Abstract: An illumination device includes: a light source; a polarization converter (114) that converts a light beam irradiated by the light source into a substantially uniform linear polarized light, the polarization converter (114) being slanted relative to a central axis of the light beam irradiated by the light source and including a plurality of polarization-separating films (1141) and a plurality of light reflection films (1143) alternately arranged in a direction substantially orthogonal to the central axis of the light beam irradiated by the light source; an optical filter (311) provided between the light source and the polarization converter (114) and having a plurality of optical conversion layers, which are formed striped with the pitch thereof corresponding to the arrangement of the polarization-separating films (1141) to optically convert the incident light beam; a holder frame (312) that holds the optical filter (311); and a filter-driving mechanism (313) that moves the holder frame (312) in a direction i

Abstract: A light collection system comprises a light source with a bulbous section for emitting radiant energy in the direction of first and second portions of the bulbous section. A reflecting surface directs visible light from the light source to the first portion. Another reflecting surface directs UV energy from the light source to the second portion. A first angle-to-area converter receives visible light in the first portion and decreases the angle of the visible light to a desired angle. A second angle-to-area converter receives UV energy in the second portion and decreases the angle of the UV energy to a desired angle. A phosphor layer receives UV energy downstream of the second angle-to-area converter and converts the UV energy to visible light. A third angle-to-area converter receives visible light from the phosphor and reducing the angle of such light to an angle optimized for entering a fiber optic cable.

Abstract: A vehicular lamp including, within its lamp chamber, a reflector 14, a led 20 disposed behind the reflector 14 and a mushroom-shaped light guide 30 that extends coaxially with the led 20 and guides light emitted from the led 20 to the reflector 14. The light guide 30 has an umbrella portion 40 at its front end and a plane of incidence 33, which guides light from the led 20 into the light guide 30, at its rear end. The umbrella portion 40 has a first light emitting surface 42 for emitting light guided into the light guide 30 in the forward direction, reflection surfaces 44 and 46 for internally reflecting the guided light in the rearward direction and radially outward direction, and a second light emitting surface 48 for emitting the internally reflected light toward the reflector 14.

Abstract: Apparatus and methods for an environmentally resistant germicidal lamp are disclosed. A cover may have a material resistant to at least one of dripping, light splashing, light spraying of liquid and condensation. The cover may have a first section having an opening for receiving a base of a lamp, and an inner surface for encompassing and being slightly larger than an outer cross section of the base when the first section receives the base. The cover may have a second section having an opening for receiving a socket of an electric discharge lamp fixture, and an inner surface for encompassing and being slightly larger than an outer cross section of the socket when the second section receives the socket. The cover may shield and partially enclose electrical contacts of either the base or the socket from at least one of dripping, light splashing, light spraying of liquid and condensation.

Abstract: A housing for a light source, the housing having: an outer shroud, the outer shroud including an outer surface, a front edge, and a hollow inner surface; and an inner shroud, the inner shroud including a front edge and a concentric bore within which the light source is affixed, the inner shroud fitting concentrically within the inner surface of the outer shroud and the front edge of the inner shroud being offset back from the front edge of the outer shroud; wherein the radius between the outer edge of the concentric bore and the outer edge of the inner shroud shades the front edge of the outer shroud from the light source.

Abstract: An infrared landing light is disclosed including a housing adapted for mounting in an aircraft, a lamp positioned within the housing and adapted to produce light having an infrared portion, and a louver positioned within the housing and adapted to receive the light and to substantially absorb a fraction of the light not directed in a forward direction.

Abstract: A sound, light and storage system which includes a sound and light module that may be placed adjacent to a bed, couch or other furniture. Various speakers and lights are provided on the sound and light module. The speakers may be connected to various entertainment or other equipment including televisions, video players, compact disk (CD) players, digital video disk (DVD) players, radios, computers and/or stereo systems, for example. The lights, as well as the speakers or the entertainment or other equipment to which the speakers are connected, may be wired to a control panel provided on the sound and light module to enable a person lying or sitting on the bed or couch convenient control of the lights, speakers and/or equipment. Alternatively or in addition, the lights, speakers and/or equipment may be connected to a remote control module and/or wireless control device.

Abstract: An illumination apparatus is disclosed, whose aperture portion can be made smaller while achieving miniaturization of the apparatus and higher condensing efficiency. The illumination apparatus comprising a light source, and a condensing unit that condenses light emitted from the light source toward the optical axis, wherein the condensing unit includes a negative lens portion that is arranged on a front side of the apparatus and has negative refractive power, a positive lens portion that is arranged near the optical axis and has positive refractive power, and a reflection portion that reflects emitted light that is not directed to the positive lens portion toward the optical axis.

Abstract: A backlight device 10 wherein a light source 13 and a light guide plate 12 for introducing light components from the light source 13 from the incident surface 12a provided on an end surface to emit the light from the surface 12b are included, a plurality of the wedge-shaped grooves 12e are formed on the surface 12b of the light guide plate 12 in stripes in plan view, and micro-irregularities 12g are formed between adjacent wedge-shaped grooves 12e is disclosed. A liquid crystal display device 1 having the backlight device 10 formed on the back surface of the liquid crystal display unit 20 is disclosed.

Abstract: A container, such as a tool box, has an interior storage compartment and a cover with a light opening therein. A light is mounted within the compartment and is selectively positionable to shine through the light opening or to illuminate the interior of the storage compartment. Preferably, the light is mounted on an articulated hinge allowing movement between a plurality of discrete positions and locks in place in a stored position. The light may be battery operated and may be removable if desired.

Abstract: It is an object of the present invention to provide a technique for making the effective use of cooling air for a motor within a power tool in order to rationalize the structure of the power tool. The representative power tool may have a tool bit case, a tool bit, a drive motor and a cooling air guiding member. The tool bit is provided within the tool bit case and performs a predetermined operation on a workpiece. The drive motor drives the tool bit. The cooling air guiding member guides cooling air for cooling the drive motor to a work area of the workpiece to be worked on with the tool bit, when the cooling air is discharged into the tool bit case. By such construction, the representative power tool can have rationalized structure that cooling air for cooling the drive motor of the power tool can also be utilized to clean the work area of the power tool.

Abstract: A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by conventional 120 or 240-volt electrical outlets, a DC generator, a battery, a battery pack, or a car adapter.

Abstract: A lamp standard for mounting in an air handling system composed of a stand having a plurality of channels wherein the channels span along the longitudinal axis of the stand and a plurality of lamp modules positioned over the channels. The lamp modules include a housing, a lamp bulb extending from the housing, and the wiring associated with the lamp modules are positioned within the channels. In use, the lamp standard can be installed within a heating, ventilation, or air conditioning (HVAC) system to minimize airborne and/or surface microorganism contaminants. The ultraviolet dosage delivered to the HVAC system can be controlled by varying the number of lamp standards, number of lamp modules coupled to the lamp standards, and spacing between the individual lamp standards.

Abstract: An illumination device confusing, in combination, a housing having a first elongated section and a second elongated section extending endwise relative to the first section, and an elongated lens assembled to the second section and having hinge support at or near one end of the lens to enable jaw-like opening bodily swinging the lens abut a hinge support axis defined by said hinge support, to gain access to elongated illumination bulb means carried by and within by the second elongated section.

Abstract: A light for use with computers containing light emitting diodes, which may be directional, on one or more movable supports which is powered via the computer's USB or IEEE 1394 port. An auxiliary USB or IEEE 1394 port may be combined with the plug-in light to allow for additional devices to be connected through the same port powering the light.

Abstract: Prismatic structures having at least certain conventionally linear surfaces thereof configured in a non-linear fashion to control the direction of light exiting said structures, the invention functions to reduce light losses in a luminaire or the like while facilitating the emanation of light from the luminaire at an acceptable viewing angle and with a reduction in glare. Prisms, particularly splitter prisms, configured according to the invention are formed with at least portions of conventionally linear surfaces as arcuate, curvilinear or generally curving segmented surfaces so as to direct light out of the luminaire for useful illumination rather than in a wasteful direction back into the luminaire. Prisms configured according to several embodiments of the invention function to increase light efficiencies either upwardly or downwardly depending on illumination requirements.

Abstract: A multifunction hydration container accessory system having (comprising) a hydration container of generally cylindrical shape having a planar bottom surface with bottom edges and having a top for filling and dispensing hydration liquids and having (comprising) an accessory system housing of generally cylindrical shape having a first end for attaching to the hydration container planar bottom and having a second end for holding a plurality container accessories such as a compass, safety signal reflective material and container storage module.

Abstract: An adjustable harp is disclosed for use with a lamp (10) having a base (11) and a base bracket (20). The adjustable harp (25) is coupled to the base bracket (20). The harp (25) has a top member (26) and two oppositely disposed, legs (27). Each leg (27) has a top portion (31) and a bottom portion (32) telescopically mounted within the top portion (31). The harp has locking means to releasably lock the relative positions of the top and bottom portions.

Abstract: A device for conducting light through an electromagnetic compliant faceplate is described. The device includes a first light pipe, a second light pipe, and a connector. The first light pipe has a first end to receive light from a first light source and a second end with an expanded endface. The second light pipe has a first end to receive light from a second light source and a second end with an expanded endface. The connector is attached to the first and second light pipes and has an elongated portion, a first attachment portion and a second attachment portion. The first and second attachment portions extend from the elongated portion and are coupled to the first and second light pipes.