Vehicle lamp having inner lens and reflector

Details Vehicle lamp having inner lens and reflector Vehicle lamp having inner lens and reflector

1989-07-14

1990-11-20

Lazarus, Ira S.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362268, 362308, 362346, 362327, B60Q 100

Patent

active

049723022

ABSTRACT:
A vehicle lamp having inner and outer lenses and a reflector mirror surface. The inner lens is a Fresnel lens for converting light beams from a light source into parallel light beams, and the outer lens is an ordinary lens for obtaining a desired divergence property of the lamp. The reflector mirror may be a plane mirror, a mirror of a truncated cone shape, or a mirror of a parabolic cylinder shape. The Fresnel lens has as its focal point the virtual image of the light source as obtained by the reflector mirror, thus realizing a compact and small depth housing of the lamp while effectively using the light beams.

REFERENCES:
patent: 3798444 (1974-03-01), Brudy
patent: 4423475 (1983-12-01), Bartel
patent: 4558402 (1985-12-01), Tysoe
patent: 4577260 (1986-03-01), Tysoe
patent: 4670823 (1987-06-01), Kochi et al.
patent: 4729075 (1988-03-01), Brass

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