Shaded beam vehicular discharge-type head lamp

Details Shaded beam vehicular discharge-type head lamp Shaded beam vehicular discharge-type head lamp

1987-01-21

1988-01-26

Scott, Samuel

Illumination

Light source and modifier

Including reflector

362 61, 362226, 362263, 313 15, 313113, F21V 712, H01J 6102

Patent

active

047220392

ABSTRACT:
To control the light distribution of light emitted from a high-pressure dharge bulb (1) asymmetrically, to meet automotive head lamp legal and design requirements, a single unitary combination bulb holder and light distribution element (11) is secured to the base sleeve (4) for example by plastic rivets (8) securing a unitary bottom plate (9) to an alignment body (5, 6) which, in turn, is positioned in the base in predetermined relation to a base positioning ring (15) formed thereon. The light distribution body is trough-shaped, with the concave surface (14) facing the bulb, and extends parallel thereto.

REFERENCES:
patent: 4140385 (1979-02-01), Shaw et al.
patent: 4423348 (1983-12-01), Greiler
patent: 4623815 (1986-11-01), Krieg et al.
patent: 4626734 (1986-12-01), Greiler
patent: 4658184 (1987-04-01), Gaspar

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