Vehicle visor

Details Vehicle visor Vehicle visor

1994-10-05

1995-12-05

Lazarus, Ira S.

Illumination

Sound equipment illuminator

362135, 362311, 362330, B60Q 300

Patent

active

054735165

ABSTRACT:
A vehicle visor includes a visor body for attachment to a vehicle, a mirror and a light source mounted to the body, and a lens attached to the body for controlling the distribution of light from the light source. The lens includes a surface with microvariations formed therein to define a holographic optical element that directs the light into a predetermined pattern for illuminating the face of the user. The lens so formed eliminates undesirable uneven light distribution such as "spider webbing," light/dark patchiness and chromatic aberrations in and around the predetermined light pattern.

REFERENCES:
patent: D324111 (1992-02-01), Arbisi
patent: 4000404 (1976-12-01), Marcus
patent: 4421355 (1983-12-01), Marcus
patent: 4486829 (1984-12-01), Marcus et al.
patent: 4536833 (1985-08-01), Davis
patent: 4916593 (1990-04-01), Moss et al.
patent: 5186533 (1993-02-01), Hori
patent: 5347435 (1994-09-01), Smith et al.
patent: 5365354 (1994-11-01), Jannson et al.
Exhibit B is a paper entitled "Holographic Light Shaping Diffusers" presented in Feb. 1994 by employees of Physical Optics Corporation, Torrance, Calif., disclosing information on holographic diffusing lenses.
Exhibit A is a product brochure entitled "Holographic Diffusers" published by Physical Optics Corporation, Torrance, Calif., disclosing holographic diffuser technology and its properties, publication date unknown but the price list being dated May 1, 1994.

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