Abstract: A multi-color semiconductor lamp includes a semiconductor light source activable so as to generate a light output, a dispersing prism and a lens. The prism has an input side located in front of the light source to receive the light output, and an output side, and separates the light output of the light source into a plurality of chromatic components that radiate at different angles at the output side. The lens is disposed in front of the output side of the prism such that a vertex of a conical focusing region associated with the lens is located at the output side of the prism. The light source is activated when the spatial position of one of the light source and the prism relative to the other one of the light source and the prism has been varied such that a selected one of the chromatic components is registered with the conical focusing region of the lens. The semiconductor lamp can thus be controlled so as to generate different colored light outputs.

Abstract: A light source for categorical color perception has major light emitting bands in ranges from 530 to 580 and from 600 to 650, with correlated color temperature of the lamp light color in a range from 1700 to 6500 and with DUV (distance from perfect radiator locus on UV coordinates) in a range from 0 to 70, and allows categorical perception of at least red, green, blue, yellow and white of surface colors of an illuminated object.

Abstract: A casing of darkroom illumination equipment is composed of a base assembly and a lid. A substrate mounting light emitting diodes, a milky colored plate, a filter and a transparent plate are placed in the casing. The light emitting diode which emits the light for which spectrum has its peak at the wavelength of 585 nm is used so as not to affect photographic color paper. The filter eliminates the light having wavelengths in the lower slope apart from the peak in the spectrum and allows only the light having the wavelengths at the peak and in the proximity of the peak to pass through.

Abstract: Interior vehicle intense local illumination of a target location of a vehicle interior is provided by an interior rearview mirror assembly incorporating a solid-state light source which emits light generally downwardly from the bottom of the assembly. Preferably, the solid-state light source consists of a grouping of multiple light emitting diodes. At least one light emitting diode preferably has a luminous intensity of at least 500 mcd when operated at a forward current of 20 mA, emits light with a dominant wavelength within the range of about 530 nm to about 680 nm, emits light having a color selected from green, orange, yellow, amber, reddish-orange, red and blue, is formed from a material including at least one of aluminum, indium, gallium arsenic and phosphorous, and may be connected by a series resistor to the vehicle ignition/battery.

Abstract: Apparatus for mixing light from discrete LED light sources utilizes beam splitters which each have a semi-reflective layer which partially transmits and partially reflects light of any wavelength incident thereon. Each semi-reflective layer is situated in a transparent prismatic black between reflective surfaces on parallel outside faces of the block so that two parallel input beams are mixed and transmitted as two parallel mixed beams of like color. For a square array of light sources, a first mixing stage consists of two such prismatic blocks arranged side-by-side, and a second mixing stage consists of two such prismatic blocks arranged side-by-side and rotated 90 degrees to the first stage. The second stage is arranged to receive a square array of mixed beams and produces four identical output beams. The colors of the light sources are chosen so that all output beams are white.

Abstract: An illuminator assembly, having a plurality of LEDs on a vehicular support member in a manner such that, when all of the LEDs are energized, illumination exhibiting a first perceived hue, e.g., blue-green, and projected from at least one of the LEDs overlaps and mixes with illumination exhibiting a second perceived hue, e.g., amber, which is distinct from said first perceived hue and which is projected from at least one of the remaining LEDs in such a manner that this overlapped and mixed illumination forms a metameric white color and has sufficient intensity and color rendering qualities to be an effective illuminator.

Abstract: The present invention incorporates a series of light emitting diodes which transmit an ultra-violet region of the electromagnetic spectrum to a bed of phosphorous to provide a fluorescent light source.

Abstract: An illuminator for use in a darkroom or with scientific instrumentation with several light emitting diodes arranged in a regular array, a transparent structure to house the LED array, two circular end caps to prevent radiation from the end zones, an opaque decorative adhesive film surrounding the outer surface of the cylinder housing, an attachment means comprising hook and loop strips with adhesive backing and a two wire lead originating in a connector to bring power to the LED array.

Abstract: A polychrome lighting device, including at least one light source for each one of the three primary colors and elements for adjusting the light sources, the adjustment elements being adapted to independently control the adjustment of the luminous intensity of the light sources in order to combine the light beams emitted by the sources into a light beam having the desired shade of color, remote control elements being also provided for setting, storing, and retrieving desired luminous intensity values of the light sources and therefore desired light colors.

Abstract: A lamp assembly for illumination of a vehicle license plate includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a lens for directing the light emitted from the light emitting diodes onto the license plate. A housing encases the substrate and the lens. An attachment member fixedly secures the housing to a vehicle displaying the license plate.

Abstract: An illuminator assembly, having a plurality of LEDs on a vehicular support member in a manner such that, when all of the LEDs are energized, illumination exhibiting a first perceived hue, e.g., blue-green, and projected from at least one of the LEDs overlaps and mixes with illumination exhibiting a second perceived hue, e.g., amber, which is distinct from said first perceived hue and which is projected from at least one of the remaining LEDs in such a manner that this overlapped and mixed illumination forms a metameric white color and has sufficient intensity and color rendering qualities to be an effective illuminator.

Abstract: A vehicular headlamp assembly with an auxiliary lamp which is small in size and does not require the provision of a special mounting space. A lamp chamber is defined by a generally capsule-shaped lamp body and a transparent front cover applied to the front opening of the lamp body, a reflection or projection lamp for forming a normal running beam, a projection lamp for forming a passing light beam, and an auxiliary lamp are disposed side by side within the lamp chamber, and a mirrored-surface inner cover having an opening through which the front end of the projection lamp is exposed. A bulb for the auxiliary lamp supported by the lamp body is disposed at a position located aslant on the side of the projection lens when viewed from the front in a state such that the bulb is directed forward. The lower edge of the inner cover corresponding to the bulb is substantially horizontally extended to form a horizontal extended part.

Abstract: A combined work station and phototherapy unit in which the fixture containing the light source is mounted on a vertical support to be placed on the base of the open area for work to be performed, the fixture being at an angle, preferably in the range of 30.degree.-60.degree., so that the user will not be staring directly into the light from the fixture. There will be light both impringing upon the eyes of the user for photobiological effect and also light will be directed to the work area.

Abstract: A decorator lamp is composed of a glass body having a surface concave toward the center of the surface and defining a through-hole formed at a desired position of the glass body in such a manner that the outer dense layer of the glass body is removed at the desired position, and a light source placed within the bore. The light source may be formed of a central bulb and a plurality of miniature bulbs arranged underneath the central bulb in such a way that the miniature bulbs are located within the through-hole and when seen in a plan view of the decorator lamp, the miniature bulbs surround the central bulb. The light from the light source is thus reflected back inwardly by the outer dense layer of the glass-made main body. It is also reflected by the walls of lands and recesses formed in the circumference of the glass-made main body. A variety of colors are thus produced at such dense layer, lands and recesses, depending on the angles of reflected light beams, thereby making the decorator lamp useful.

Abstract: A skin tanning fixture which may be in the form of a couch with an adjustable cover makes use of a battery of light emitting tubes on the lower side over which is a translucent body supporting sheet. A comparable battery of light emitting tubes are arcuately disposed beneath a reflector on the underside of the cover and also protected by a translucent sheet. There is a greater number of tubes used on the cover than on the lower side and tubes on both sides are arranged in a compact relationship sufficient to generate an energy density of ultraviolet A light rays sufficient to build up a tanning effect in the skin in substantially greater proportion than the proportionate increase in the amount of energy density present due to an increase in the number of tubes.

Abstract: In an apparatus for treating dental materials with radiation of a selected spectral range, a receptacle accommodating the material to be treated is surrounded by one or a plurality of fluorescent tubes. The maximum emission of the fluorescent tubes is about 460 nm. The receptacle which accommodates the dental material during the irradiation process is preferably hermetically sealed and is made of a material that is transparent to the radiation.

Abstract: An apparatus for testing light fastness of a material having a housing with a test chamber therein and two downwardly and outwardly inclined specimen supporting walls on opposite sides of the chamber and two rows of horizontally positioned equal intensity ultraviolet fluorescent lamps one lying generally along each of the specimen supporting walls, with four lamps in each row. The uppermost lamp in each row is spaced downwardly from the upper edge of the specimen supporting wall and the next lower lamp is spaced above the midpoint of the vertical dimension of the wall substantially equal distances, the uppermost and next lower lamps being spaced from each other slightly less than twice the equal distance.

Abstract: A signal lamp having in its housing with an opening, a bulb, an optical elements installed in the housing for converting the light of the bulb into parallel rays of light, a colored lens being colored differently in plurality of regularly disposed patterns, a slit plate installed slidably and provided with portions pervious to light corresponding to said pattern in shape and a solenoid, by which the slit plate is shifted and the radiated light is converted in its color.

Abstract: An eye-safe compact laser simulator for simulating a laser spot on or off axis. The simulator used to test laser range and spot receivers.

Abstract: A lightweight emergency lighting system capable of arrangement into various subjective configurations is provided. A housing member supports a plurality of individual lighting elements mounted on a common semi-rigid bus bar. The upper configuration of the housing members is capable of a directional transmission of light towards a predetermined field angle, while the lower configuration is adaptable for mounting the lighting elements. The upper housing member can have an interior surface of a prismatic configuration to provide a refraction and reflection of light in combination with the exterior surface. The lighting elements, such as L.E.D.'s, can be excited through a pulsing circuit to maximize the light output while conserving power from an auxiliary battery source.

Abstract: The light comprises a cluster of lamp unts (100), pivotally mounted at (6,7), on respective chassis (8) running on a loop track. The lamp units are approximately equidistant from a central axis and illuminate a common patch on the axis. Each chassis (8) is connected to a respective chain (35) which may be driven to move individual chassis (8) along the track, changing the configuration of the cluster. A linkage (26,27,31) enables the lamp unit inclination to be varied and a linkage (12,13,14,16,18 ) enables the relative positions of a bulb (1) and a concave reflector (10) to vary, thereby varying the beam width. The rollers (18) of each unit roll on a surface of a first common hoop and the rollers (31) on a surface of a second common hoop. The hoops are movable enabling the inclination of beamwidth of all the lamp units to be varied simultaneously, changing the patch range or size.

Abstract: This invention is directed at a light box comprising a box-like base member and a cover. The base member has a storage compartment and a series of light chambers which are aligned with the storage chamber. The storage chamber includes a means of providing power to the source of light mounted in the light chambers. The cover is pivotally engaged to the base member by an L hinge and has an adjustable connector extending therefrom which is engageable with the base member. Each of the secondary walls has an upper side edge and a lower side edge. The upper side edge is positioned in close proximity to the opening of the base member and the lower side edge is positioned in spaced parallel relation to the upper side edge and has a notch formed therein. The notches of the secondary walls are in aligned, spaced relation to each other. A first channel is mounted in a shoulder formed at the opening to the base member and faces into the light chambers.

Abstract: A lens cap and mount for use with an electromagnetic radiation emitter or sensor in the cap has an integral lens for collimating or converging the emitted or received radiation.

Abstract: The present invention relates to lights for automobile vehicles. The present invention proposes a light which comprises an elliptical mirror associated with a lamp to form a light-emitting device supported on the inner face of a piece of bodywork of the vehicle in a position such that the filament of the lamp is substantially disposed at the first focus of the elliptical mirror, while the other focus of the elliptical mirror merges substantially with an orifice provided in said piece of bodywork; the dimensions of this orifice, while being small with respect to the surface circumscribed on the piece of bodywork by the reflector, are defined so that virtually all the beam reflected by the elliptical mirror emerges from the light; a globe is fixed on the outer face of said piece of bodywork, opposite the reflector.

Abstract: Ordinary incandescent lighting products, such as table lamps, floor lamps, ceiling fixtures, etc., are designed to be used with regular screw-in incandescent lamps, and can not be used with non-self-ballasted fluorescent lamps--even if these had been furnished with regular Edison screw-bases. The lighting products of the present invention, however, are capable of being used with either regular incandescent lamps or with screw-base-mounted non-self-ballasted fluorescent lamps.In one preferred embodiment, the invention is implemented by using an Edison-type lamp socket with three lamp-contacting terminals--such as are commonly used with three-way incandescent lamps.

Abstract: An apparatus for use in the cockpit of an aircraft which provides sufficient illumination to read the cockpit display indicators, controls and charts but does not destroy the pilot's night vision. A casing, which is normally worn on the wrist of the pilot, contains a microencapsulated electroluminescent phosphorus lamp which provides illumination that will not affect the pilot's night vision. The lamp is powered by an inverter which is connected through a switch to a power supply, all of which are also contained within the case.

Abstract: A solar simulator includes a lamp array of solar lamps pivotally connected to an array frame. The array frame is rotatably and pivotally mounted on a gantry crane, the elevation and lateral position of which are adjustable relative to the position of a solar collector to be tested. The solar simulator maintains the plane of the lamp array parallel to the plane of the test device for all elevations, lateral positions and rotational positions of the lamp array, and controls tilting of the lamps relative to the array frame to any desired angle of incidence. The solar simulator is operated to control the angle of incidence of radiation received by the solar collector to be tested and to vary the distance from the array of lamps to the solar collector in such a manner that the intensity of received radiation along the surface of the test device is uniform, thereby avoiding undesirable lateral gradients in temperature along the surface of the test device.

Abstract: Apparatus is disclosed for uniform exposure of a plurality of objects such as semiconductor wafers to radiation utilizing sources of radiation of linear configuration. The apparatus includes a baffle assembly of particular construction and constitution situated between the linear sources and the region to be irradiated.

Abstract: A connection system comprising a variety of metal connectors, a plurality of illuminated modules insertable into the connectors, and electrical leads hidden within the connectors to electrically join the modules in series relationship, and a step-up transformer for supplying the voltage needed to energize the plurality of modules. Each connector has a hollow body adapted to receive at least one illuminated module. Each illuminated module includes a rigid, transparent plastic sleeve with an annular collar at each end of the sleeve; a gas filled tube is retained in the sleeve by the collars. A foot with a mounting flange is operatively associated with some of the connectors to firmly support an assembled plurality of illuminated modules. The connectors and illuminated modules can be assembled into diverse configurations for applications previously unsuited for gas filled tubes, such as neon.

Abstract: First, second and third dichroic filters are positioned at corresponding ones of first, second and third light sources for deriving red, green and blue beams, respectively, from the light sources. A beam guide member has first, second and third branched bundles and a main bundle composed of the first, second and third branched bundles. Each branched bundle has an end surface at which a corresponding one of the beams derived from the dichroic filters is provided. The main bundle has an end surface for emitting the beams. A light quantity control circuit controls the quantities of light of the light sources.

Abstract: A search and warning light system is disclosed, in its preferred forms, as including a light assembly having first and second lamp assemblies. The light assembly is mounted about a vertical axis for rotation in either a clockwise or counterclockwise direction and the lamp assemblies are mounted to the light assembly about a horizontal axis for rotation in either an upward or downward direction. A control module located in a remote location provides appropriate electrical input to the motors controlling the rotation of the light assembly and the lamp assemblies, and to the lightbulbs included within the lamp assemblies. The motor for rotating the light assembly is located exteriorly of the light assembly in a first embodiment and is located interiorly of the light assembly in a second embodiment. The lamp assemblies can be independently rotated by providing separate motors and drive mechanisms or can be rotated together by rotatably relating the lamp assemblies.