Headlight for vehicle

Details Headlight for vehicle Headlight for vehicle

1986-10-17

1989-01-17

Yeung, James C.

Illumination

Light source and modifier

Including reflector

362310, 313113, 313620, F21V 700

Patent

active

047991356

ABSTRACT:
A headlight for a vehicle includes a metal halide lamp and a reflector having a focus and reflecting a light beam, emitted from the lamp, in a forward direction from the front of the vehicle. The lamp has a luminescent tube in which at least sodium is sealed, and positive and negative electrodes. The respective distal ends of the electrodes are located in the luminescent tube and spaced at a predetermined distance from each other. The lamp is positioned so that a straight line connecting the respective distal ends of the electrodes is horizontal and passes through the focus, and so as to meet the following requirement:

REFERENCES:
patent: 3341731 (1967-09-01), Wilson
patent: 3378713 (1968-04-01), Ludwig
patent: 3862449 (1975-01-01), Stuart et al.
patent: 4138621 (1979-02-01), Downing et al.
patent: 4253037 (1981-02-01), Driessen et al.

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