Gte Products Corporation

Timothy A Benson

Peter R Gagnon

An electric reflector-type lamp having an improved eyelet construction in which there is utilized a uniquely contoured eyelet fitted into specially shaped apertures in the rear of the glass reflector. The eyelets consist of a hollow cylinder of brass with a bulged center portion which is held firmly within each aperture. The end portions of the eyelet are flared to permanently hold the eyelet in position after insertion. The apertures in the rear of the reflector are comprised of a plurality of sections which accommodate the eyelet and promote sturdy construction. A light source capsule is guided into the apertures by the flared ends of the eyelets, after which the leads are soldered to the eyelets. To seal the lamp and for additional strength, an adhesive can be added around the eyelet.

Reflector and eyelet construction for reflector-type lamps

Reflector-type electric lamp or the like

A high-voltage, low-wattage incandescent lamp having a tubular hard-glass envelope enclosing a coiled coil filament axially mounted with at least one, preferably two, intermediate filamentary supports. The lead-in wires and filamentary supports are mounted in the press seal of the lamp. Each end of the filament is mounted on an internal termination of a lead-in wire. The filament is mounted on the intermediate support(s) at point(s) along the filament body such that the body is divided into approximately equal segments or such that the operating temperature along the body is approximately uniform. Because of reduced filament sag, the tubular glass envelope has a reduced inner diameter and thinner wall thickness whereby the lamp may be more safely contained within an outer envelope in the unlikely event of a lamp burst. A lamp in accordance with the invention will exhibit enhanced operating characteristics and is well suited for applications in Europe.

High voltage hard glass halogen capsule

A multifunctional member and reflector lamp employing same for mounting a light-source capsule on the inside of the neck of the outer envelope, for optically aligning the capsule with respect to the reflector, for reflecting heat away from the base region of the lamp, for blocking convective heat transfer into the lamp neck, and for reflecting light incident on the member toward the lens. In performing these multiple functions, the member reflects heat back to the filament or light source which improves its efficiency, and the member redirects light toward the lens which improves the efficacy of the lamp. In a preferred embodiment, the multifunctional member is formed from stainless steel and has a bowl-shaped body with a somewhat flexible peripheral annular tab extending upward and outward conically. The peripheral tab may be crimped, slotted, or have a tapered thickness in order to provide flexibility sufficient for mounting. The bowl-shaped body preferably is paraboloidal having a focal center substantially coincident with the focal center of the reflector. In an alternate embodiment, the multifunctional member has a curvature matched to the curvature of the reflector and no peripheral tab so that the reflector has been optically extended to the press seal of the light-source capsule. A lamp constructed in accordance with the invention is particularly well suited for employing a heat-sensitive component, such as a diode, in the base region of the lamp.

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Winchester, MA, United States of America

Timothy A Benson