Replaceable lamp unit for automobile headlight

Details Replaceable lamp unit for automobile headlight Replaceable lamp unit for automobile headlight

1987-02-06

1988-01-12

Davis, Jr., Albert W.

Illumination

Sound equipment illuminator

362226, 362267, 219 1043, 219 1053, 219 1057, B60Q 104

Patent

active

047195436

ABSTRACT:
An improved replaceable lamp unit for use in an automobile headlight wherein the exterior surface of the unit's metallic insert is provided with a roughened surface (e.g., 125 RMS) such that an improved bond between the insert and the unit's plastic holder is possible. Alignment between the unit's lamp (e.g., tungsten halogen bulb) and holder, and thus the reflecting surfaces of the reflector in which the unit eventually will operate, is significantly improved, as is the time for attaining same. The roughened texture may be sandblasted, knurled, acid-etched or embossed.

REFERENCES:
patent: 3923580 (1975-12-01), Leatherman
patent: 4547838 (1985-10-01), Wabimizu
patent: 4569005 (1986-02-01), Bergin et al.
patent: 4609977 (1986-09-01), Eckhardt et al.

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