Variable light distribution type automobile lamp

Details Variable light distribution type automobile lamp Variable light distribution type automobile lamp

1991-03-26

1991-11-26

Husar, Stephen F.

Illumination

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

Tie rod element controlled

362277, 362268, 362319, 362331, B60Q 104

Patent

active

050687689

ABSTRACT:
A variable light distribution type automobile lamp capable of varying the range of diffusion of a flux of light by changing the position of one of two cylindrical lenses. Flat areas are formed at the centers of both lenses to produce a spot beam at the center of the ouput light flux. The lenses are aligned with one another using this spot beam. The invention also provides a device for varying the distance between the lenses in the direction of the optical axis without rotating the lenses relative to one another.

REFERENCES:
patent: 3522424 (1970-08-01), Fritsch
patent: 4293892 (1981-10-01), Plummer
patent: 4345303 (1982-08-01), Gerard et al.
patent: 4739456 (1988-04-01), Little
patent: 4771372 (1988-09-01), Litetar et al.

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