Abstract: The envelope of a compact halogen-cycle incandescent lamp is made from hard glass and the uncoiled legs of the tungsten filament are used as filament connector-support members by fastening them directly to flattened ends of a pair of single lead wires and embedding the resulting electrical junctures in the hermetic seal of fused glass which is formed on the end of the envelope. The lead wires originally comprise the legs of a hairpin-shaped wire member which permits the filament-mount to be made and handled as a separate subassembly. The U-bent part of the hairpin-shaped wire member is severed and removed after the mount has been sealed into the envelope to provide the required pair of separate lead wires.

Abstract: The efficacy, life and beam intensity of a sealed-beam headlamp are enhanced by employing a compact baseless halogen-cycle incandescent lamp as the inner light source and mounting it in optically coupled relationship with the reflector component of the sealed-beam housing by a holder assembly that is rugged, light in weight, and inexpensive from both a material and manufacturing standpoint. The holder assembly comprises one or several sheet-metal components that are locked in embracing interfitting relationship with the press seal of the lamp envelope by welding the components to one or more of the lamp lead-in conductors and to the rigid main conductors carried by the reflector component. The halogen-cycle lamp and its rigid lead-in conductors thus constitute integral structural parts of the finished mount that mechanically retain the various components in their assembled relationship.

Abstract: A single pair of headlamps that each contain a single on-focus light source and produce different but complementary beam patterns are mounted on a motor vehicle to provide a composite beam of intense non-glare light that is used for city, rural and turnpike driving and thus remains "fixed" and constant for all driving conditions. The use of a single light source in each headlamp improves the optical efficiency of the lighting system and provides both long range and short range illumination of the roadway with a minimum amount of energy and drain on the electrical system of the vehicle. The headlamps are not interchangeable and must be mounted in proper relationship on the vehicle to provide the single-mode illumination.

Abstract: The efficacy, life and beam intensity of a sealed-beam headlamp are enhanced by employing a compact baseless halogen-cycle incandescent lamp as the inner light source and mounting it in optically coupled relationship with the reflector component of the sealed-beam housing by a holder assembly that is rugged, light in weight, and inexpensive from both a material and manufacturing standpoint. The holder assembly comprises one or several sheet-metal components that are locked in embracing interfitting relationship with the press seal of the lamp envelope by welding the components to one or more of the lamp lead-in conductors and to the rigid main conductors carried by the reflector component. The halogen-cycle lamp and its rigid lead-in conductors thus constitute integral structural parts of the finished mount that mechanically retain the various components in their assembled relationship.