Vehicle headlamp

Details Vehicle headlamp Vehicle headlamp

1982-12-08

1985-03-19

Walsh, Donald P.

Illumination

Light source and modifier

Including reflector

362297, 362 61, 362 80, 362 83, 362346, F21V 700

Patent

active

045063150

ABSTRACT:
A vehicle headlamp comprises a reflector having a reflecting parabolic face, and a lens made of synthetic resin and attached to the front end of said reflector. The vehicle headlamp further includes a lamp held by said reflector, at least one filament in said lamp positioned ahead the focussing point of said reflector, and a zone formed on the reflecting face where a means is arranged to reduce the amount of light coming from the filament onto the lens at an upper area thereof, said zone being positioned above the lamp and along an axis vertically passing through an optical axis. Said light reducing means is intended to reflect light either irregularly or diffusedly. The irregularly reflecting means comprises using no undercoat which serves to make the reflecting coat flat and smooth, or making the reflector body rough and uneven and then applying reflecting coat onto this rough and uneven portion with the undercoat interposed therebetween. The diffusedly reflecting means comprises forming slanted faces on the inner face of said reflector body and applying the reflecting coat onto these slanted faces with the undercoat interposed therebetween.

REFERENCES:
patent: 1413315 (1922-04-01), Correll
patent: 1737027 (1929-11-01), Schoonmaker
patent: 4210841 (1980-07-01), Vodicka
patent: 4351018 (1982-09-01), Fratty
European Search Report

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