Abstract: A lamp assembly includes a lamp capsule having a tubular lamp envelope, and a reflector disposed around the lamp envelope. The reflector defines an aperture for emission of light from the lamp capsule. The reflector has a reflecting surface facing the lamp envelope. The aperture has a dimension transverse to the longitudinal axis of the lamp envelope that is less than the diameter of the lamp envelope. The reflecting surface preferably has a diffuse reflecting characteristic. The lamp capsule may be a low pressure discharge lamp, such as a neon lamp. The lamp assembly may, for example, be used as a center high mount stop light in a vehicle.

Abstract: A lamp housing assembly is provided for mounting upon the facia of a motor vehicle. In one embodiment, the lamp housing assembly may be useful in housing and mounting a fog lamp to a motor vehicle. The lamp housing assembly includes a cup-shaped body having a key formed on the upper surface of the body. A mounting bracket is provided which includes a first portion having a keyway, which may be engaged with the key to attach the mounting bracket to the cup-shaped body. The mounting bracket also includes a second portion which extends beyond the cup-shaped body for attaching the mounting bracket to the facia.

Abstract: A neon lamp providing white light is disclosed. The lamp is operated to stimulate the neon to emit both ultraviolet light, and visible red light. A phosphor coating responsive to the ultraviolet light produces a complementary green blue light that in combination with the neon red light yields a white light. The lamp is small, efficient, and not subject to the effects of cold that cause mercury based fluorescent lamps to operate poor in cold conditions typical of out of door operation.

Abstract: A method of molding resin having substantial amounts of fiber and mineral fillers that provides, without the necessity of a base coat, a metallizable surface of reflector quality is possible. The method is useful for making a vehicle lamp reflector with a substantially organic skin over a substantially inorganic core. The organic skin may be metallized without using a base coat. The reflector may even be molded to give a surface gloss sufficient to be metallized without a base coat, and still meet the optical and durability requirements necessary for a vehicle headlamp.

Abstract: A flexible lamp tube support having lamp support end a coupling to hold a lamp tube on one end and a latching portion to couple into a through hole is disclosed. The flexible, soft body coupler is inexpensive, has low heat conduction, can securely hold the lamp and cushion the lamp. The simple construction is adaptable to differing lamp, housing, and through hole configurations.

Abstract: A high intensity discharge lamp with a heat treated inner electrode rod has been found to form an advantageous crack pattern. As a result seal failures have been reduced and lamp life increased.

Abstract: An incandescent lamp with shock resisting supports having filament, first support rod, envelope, spacer, spacer, cap seal, and block is disclosed. The incandescent lamp with shock resisting supports yielding an incandescent lamp with a heavy filament structure supported by two support rods protected by a shock conditioning spacer and spring.

Abstract: A vehicle headlamp may be formed from a light source; a divergent lens; and a reflector facing in a forward direction to the lens. The reflector has one or more first regions, and one or more second regions. The first region is a section of an ellipsoid of revolution with one focal point coincident with the light source, and one focal point located at the first focal point of the lens. The second regions have a surface with an elliptical vertical cross section having a first focal point coincident with the light source and a second focal point coincident with the first focal point of the lens. The second surface additionally has a horizontal axial cross section having a first focal point coincident with the light source and a second focal point axially offset from the first focal point of the lens. The horizontal axial cross section may be elliptical, parabolic or hyperbolic. Light from the first regions is convenient to form the beam hot spot.

Abstract: A long life, two filament tungsten halogen lamp having light transmissive envelope, a first filament with a first lead, second lead, filament coil; a second similar filament, and a fill material is disclosed. The filament coil has an increased wire weight, increased over what is commonly used. The fill material comprises a halogen for the tungsten halogen cycle, a getter, and the remainder is approximately equal portions of krypton and xenon. The basic life improvement comes from the heavier tungsten wire weight, combined with the heavier molecular weight of xenon and krypton. The new filament and fill gives a two filament tungsten halogen lamp yielding substantially longer lamp life.

Abstract: An EMI shielding lens for a lamp, e.g., an automotive lamp. The lens includes a transparent, unitary, polymeric lens blank and a thin, heat transferred grid layer including an electrically conductive grid pattern disposed on the lens blank inner or outer surface. The grid pattern may be formed from indium tin oxide or from a conductive, heat transferable, inks or polymer. The grid layer may also include colored or opaque indicia. Linear elements of the grid pattern are spaced apart by less than 1/2 .lambda. of the EMI to be shielded. Also discloseed is an electromagnetic interference shielded lamp assembly including an electrically conductive housing, a light source within the housing, the EMI shielding lens fixed to the housing, and grounding means. Methods for fabricating the lens and the lamp assembly are also disclosed.

Abstract: A light source, particularly suited for surgical and other medical illumination applications, includes an electrodeless lamp assembly, a reflector having the electrodeless lamp assembly mounted therein and high frequency power source for supplying high frequency power to the electrodeless lamp assembly. The electrodeless lamp assembly includes an electrodeless high intensity discharge lamp capsule including a light transmissive discharge envelope enclosing a discharge volume containing a mixture of starting gas and chemical dopant material excitable by high frequency power to a state of luminous emission. The luminous emission has a color rendering index greater than 85 and preferably has a color rendering index greater than 90. The luminous emission preferably has low energy in the spectral range of 800 to 1000 nanometers relative to energy in the visible spectral range.

Abstract: A vehicle headlamp system having optical reflector, lamp capsule, and gasket is disclosed. The vehicle headlamp system uses surfaces formed as part of the optical surface yielding located light source. As a result, the light source is more accurately positioned with respect to the reflector, and a more accurate beam pattern is formed. The lamp capsule is assisted in its location by a spring to force the capsule in proper location. The headlamp system no longer uses an O-ring to provide location, but an improved flat resilient gasket provides a sealing and locking force to maintain proper face to face coupling. The preferred lamp capsule uses a cup to shield light reflected from the press seal. The preferred lamp capsule uses a cup, and pedestal system mounting providing five axes of light source positioning. The preferred lamp capsule uses a clip coupling to join the light source holder to the plastic base.

Abstract: An electric discharge lamp with an internally threaded electrode is disclosed. The lamp includes an envelope, a support rod, and an electrode can with an interior surface having a multiplicity of peaks, points, of sharp edge regions. These equal height prominences evenly extended around the inside wall of the electrode can. The threaded electrode yields a highly emissive electrode with no emissive material to be eroded.

Abstract: The invention concerns an electrical incandescent lamp with a low-beam cap, articularly a two-filament halogen incandescent lamp and a production process for such a lamp, as well as a low-beam cap. Low-beam screening cap (12) has an opening (14), through which one end (6a) of low-beam filament (6) is threaded. This filament end (6a) is welded to the back side of low-beam screening cap (12) or to a current lead wire (8a), which is attached by a projection welding to the back side of low-beam screening cap (12). The fastening of low-beam filament (6) according to the invention makes possible materials savings in the case of a low-beam screening cap (12) and lower cost lamp manufacture.

Abstract: The invention concerns a high pressure discharge bulb. Such bulbs involve a wo-sided sealed bulb with and without an outer bulb. The bulb is sealed by a pinch on at least one side. It generally has a discharge vessel made of quartz. These bulbs particularly comprise metal halide bulbs, which have a metal halide filling in addition to mercury, but they also include mercury high pressure discharge bulbs or xenon high pressure discharge bulbs. The bulbs are used preferably for optical systems, particularly larly for photo-optical purposes, for example, in head-lights, overhead projectors, and decorative lighting devices. They particularly find application in lighting systems for the stage, film and television. Typical lamp powers are 400 to 2000 W. A discharge lamp pinched on each end has pinches in which the ratio of the total width of each wide side is smaller than or equal to 2.2 times the thickness of the wide side. Tube pieces carrying the base sleeves are formed on the outer ends of the pinches.

Abstract: An electrodeless high intensity discharge lamp including a sealed light-transmissive envelope, a volatilizable chemical fill and an inert gas or nitrogen within the envelope. The chemical fill includes as a primary active component phosphorus or a volatilizable compound of phosphorus. The inert gas or nitrogen is at a pressure of less than 760 torr at ambient temperature, and assists in starting the lamp. Sufficient mercury may be added to the lamp fill to improve resistive heating, but addition of mercury is not required for emission. Sulfur, a sulfur compound, or a metal halide may be added to the fill as a secondary active component. The lamp envelope is coupled to a high frequency power source to produce a light emitting plasma discharge within the envelope.

Abstract: A lamp capsule with lug connectors, having a lamp bulb, a holder, and a lug is disclosed. The lamp capsule lead extends through the holder passage to fit closely with the lug foot. The lug foot is then rotary swaged to the lamp lead. The swaging mechanically and electrically seals the lead and the lug. An interference coupling is exactly formed along the lead by the swaging, so the lead and lug are precisely located and cannot move with reference to one another. The lug and lead are then tightly held and located with reference to the holder. The mechanical interference fit also forms an electrical connection that cannot separate like a cold weld. The swaging may additionally remove any excess exterior extension of the lead. As a result, the lug is quickly, accurately, and permanently coupled to the lamp lead, and holder preventing subsequent loosening or displacement that may effect lamp positioning or connection durability.