Headlamp for vehicle

Details Headlamp for vehicle Headlamp for vehicle

1986-11-26

1987-07-21

Moore, David K.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313113, 313114, 362211, H01J 516

Patent

active

046820728

ABSTRACT:
The present invention provides a headlamp for a vehicle wherein a reflector is different in focal position of a paraboloidal surface between an upper surface and a lower surface thereof, a focal point on the lower surface side is formed to be positioned forwardly more than a length of a sub-filament from a focal point on the upper surface side, and the sub-filament is positioned between both the focal points to thereby efficiently utilize luminescense and obtain a light distribution pattern of high luminous intensity.

REFERENCES:
patent: 3688149 (1972-08-01), Pitkjaan
patent: 4140939 (1979-02-01), Bonazoli et al.

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