Abstract: An apparatus for improving the performance of flashlights includes a substantially cylindrical housing (10) having a first end (12) and a second end (14). A battery cap (18) is operatively connected to the first end of the housing and functions to secure a series of batteries in place. A series (30) of light emitting diodes (LED) (32-48) are mounted within the flashlight housing at the end opposite the battery cap. The series of LEDs form an LED array which operates as the light source for the flashlight. A substantially cone-shaped optical assembly (50) extends outward from the second end of the housing and operates to focus and disperse the LED beam emitted by the LED array. The flashlight further includes an adjustable switch (56) disposed on the exterior of the housing. The switch is coupled to a variable resistor (58) which permits control over the light level and/or battery life.

Abstract: A plasma lamp head that has a spherical plasma bulb whose upper hemisphere serves as the top of the head, a decorative face and lower back of the head covering the lower hemisphere of the bulb. Operative components are provide to enable the bulb to illuminate in response to receipt of appropriate energy delivery to excite the plasma within the bulb to illuminate. The face preferably has eyes, a nose, a mouth and ears, any of which may be transparent or translucent so that light shines through when the bulb illuminates. The remainder of the decorative face and lower back of the head may be opaque or translucent material.

Abstract: A gutter system has decorative ropelights held in a longitudinal groove in the face of the gutter. The groove is adapted to hold a ropelight without using clips or other separate attachment devices. The gutter can also have two or more longitudinal grooves, each holding a ropelight. The system is easy to install on a building and eliminates the need for annual installation and removal of decorative lights.

Abstract: A surgical headlamp containing dual lamp housings, each containing one or more LED light sources is featured. Both lamp housings may be adjusted so that light beams emitted by each may be selectively converged at a spot a predetermined distance in front of the lamp housings. Each lamp housing typically contains, in addition to the LED(s), one or more reflectors to gather and direct light generated by the LED(s) forward to an illuminated work area. Batteries, preferably rechargeable, mounted either on the headband supporting the headlamp on a user's head or external to the headband, are used to power the LED(s). Switch and/or dimming circuitry may be provided. Hot swapping, a capability whereby batteries may be interchanged during a lengthy surgical procedure, is also provided.

Abstract: The invention proposes an indicator lamp comprising an optical axis oriented from the rear to the front, on which there is a light source which is provided for emitting a light flux towards the front, and of the type comprising an optical device for recovering and distributing the rays of light emitted by the source, with a view to providing an indicating faction that meets the regulations, wherein the optical device comprises a coaxial annular reflector and, in front of the light source a central optical part known as the light engine which is provided for distributing the rays of light emitted by the source in directions that are generally transverse about the optical axis, towards the coaxial annular reflector that is provided for distributing the rays of light axially towards the front.

Abstract: A system for providing a uniform source of light. The system includes a light pipe having an input surface for receiving light from a light source and an output surface for transmitting the light. The system also includes an optical element having an entrance surface positioned adjacent to the output surface of the light pipe for receiving the light and an exit surface for transmitting the light.

Abstract: There is provided an optical structure. The optical structure includes a light source. The optical structure also includes an organic light management film having an index of refraction of less than 1.7 disposed above the light source, and a transparent inorganic film having an index of refraction of greater than 1.7 disposed adjacent the organic light management film. A optical device is also provided including the organic light management film and the transparent inorganic film. A method of forming the optical structure is also provided. The method includes depositing the transparent inorganic film under vacuum.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A ceiling lamp suspending device comprise the following elements. A wire connecting box has two ears arranged at two edges thereof. A retaining sheet is below the wire connection box. A through hole is near a center of the retaining sheet. One edge of the through hole is extended with and communicable to a long hole. A stop elastomer is disposed aside the through hole. A part of the stop elastmoer covering the through hole. A retaining block is installed below the retaining sheet. The retaining block has a threaded section and a shaft extended from the threaded section upwards. An upper end of the shaft is a neck portion and a suspending portion. A via hole is formed on the shaft. The suspending portion passes through the through hole of the retaining sheet; and the neck portion is movable in the long hole.

Abstract: An LED flashlight construction is formed from molded plastic housing members joined to provide a tubular section connected to a battery chamber capable of holding one or more disc batteries capable of providing adequate voltage for operating a light emitting diode positioned at the distal end of the tubular section. A conductive metal pocket clip may be elastically deformed for closure of the circuit to provide power to the light emitting diode.

Abstract: The present invention provides a lighting system for illuminating the interior of a trolling boat wherein the light is attached to or contained within the trolling motor assembly. The invention comprises in one form thereof, a trolling motor assembly having a motor control compartment, a shaft and a motor/propeller assembly. The motor control compartment further comprises a light assembly attached thereto. In a particular embodiment of the invention the light assembly is fixedly attached to the motor control compartment as to provide a lighting means for the interior of the boat. A further embodiment is contemplated wherein the lighting means is contained within the motor compartment and portion of the motor compartment housing is the appropriate material to permit the passage of light through the motor compartment.

Abstract: A white light generating portion is comprised of a gas discharge light source and a rotated cylindrical lens. A red light generating portion is comprised of a plurality of light emitting diodes.

Abstract: A tubular electro-luminescent light includes an inner member around which an electro-luminescent panel having electrodes is coiled, and at least one additional wire connected between ends of the light for carrying electric signals related to the function of an external device. The external device may be an audio, video, or communications device, or a power supply for a household appliance or the like, and the electric signals carried by the additional wire, or sensors, may be used to trigger the light. For example, the external device may connect an ear-phone set of a cellular telephone, the device being arranged in a loop to be worn around a body part of the user, a handbag, or the like, and the light being triggered by electric signals indicative of an incoming telephone call.

Abstract: A manual-operation sound and light emitting device is used in a vehicle, particularly in a bicycle. Moving a movable rod, a gear will rotate. Then steel balls resists against a cover so as to rotate the cover. The rotation of the cover will drive a central rod and a bell body to rotate. Then a coil, a transparent light mask, and a hammer of the bell body displace to touch a block of a seat. By the elasticity of a spring, a hammer will vibrate after passing through the block so as to knock the bell body to emit sounds. A plurality of inclined grooves in the gear and the steel balls cause the bell body to rotate unidirectionally. When the central rod rotates, a coil will be driven. A magnet will cut through positive negative electrode sheets so as to light up LED lights in the bell body.

Abstract: A headlight for motor vehicles is provided that includes an optical element, which is connected to a support element by at least one ball-and-socket joint. The ball-and-socket joint has a spherical ball and a spherical socket. The socket encloses the ball with socket segments and is inserted together with the ball into a receptacle, and contacts, via its socket segments, the inside of the receptacle. The socket contacts the bottom of the receptacle with a base, and has on the other side freestanding elastic socket segments that enclose the ball. Elastic detent elements of the receptacle engage behind the base of the socket and retain the socket axially in the receptacle.

Abstract: An accessory cartridge for removable reception in a specialized lighting fixture. A circular cartridge ring is provided with an internal lower flange, for supporting one or more flat, circular, disc-like accessory elements, such as filters. Retainer clips are positioned to engage at least the uppermost one of the disc-like accessory elements, such that one or more of the disc-like accessory elements may be easily installed within the cartridge ring and the entire series thereof automatically retained therein by engagement of at least the uppermost accessory element. The entire cartridge is designed to be bodily installed in or removed from the lighting fixture, to facilitate expeditious changing of accessory elements utilized with the lighting fixture. Preferentially, the lighting fixture is provided with a hingedly connected front barrel portion, which is constructed to receive and support the cartridge.

Abstract: Various embodiments of a flashlight are provided. In one representative embodiment a flashlight includes a light source, a housing and at least two battery locations inside the housing. Each battery location inside the housing can accommodate at least one of at least two batteries, each of which can be a different size. The flashlight also includes an electro-mechanical structure that prevents a closing of an electrical circuit that electrically couples the batteries to the light source, when one of the at least two batteries in the flashlight is a different size than another.

Abstract: A fiberoptic lighting system has a light source with a bulbous section and a plurality of plastic light pipes having substantially circular cross sections. A collector has an inlet for receiving light from the light source and an outlet. The collector performs an area-to-angle conversion on light it collects from the light source. A plurality of rods receives light from the collector and passes such light to the plastic light pipes, while thermally isolating the plastic light pipes from the light source. A perimeter of an outlet of the collector has a plurality of shaped portions, each associated with, and each substantially shaped the same as, a substantial portion of an associated perimeter of a respective one of the plurality of rods. The foregoing system delivers a higher percentage of light from a light source into multiple light pipes than in a prior art system.

Abstract: A light source system, including light emitting diodes with different light emitting colors arranged at a predetermined ratio of quantities of diodes, the ratio of quantities of diodes is determined based on light emitting status for each diode of each color so that a projected light has chromaticity of a desired color, and total quantity of the light emitting diodes is set so as to satisfy the ratio of quantities of diodes.

Abstract: A shutter section includes a stack of circular plates independently rotatable in a nest formed as a laminar formation of rings. The plates have central openings defining a light path. Four central plates in the stack are shutter guide plates with radial guide slots slideably holding shutter blades. Two outer pairs of plates are shutter drive plates connected by cams to the shutter blades. Simultaneous rotation of a shutter guide plate and associated shutter drive plate causes rotation of an associated shutter blade around the light path. Rotation of a shutter drive plate while the associated shutter guide plate is stationary causes the cam to move the associated shutter blade radially. The nest is enclosed by end plates. A motor section has motors driving pinions to rotate the circular plates. The circular plates, rings pinions and shutter blades are made of sheet metal.