Veiling glare control holographic windshield

Details Veiling glare control holographic windshield Veiling glare control holographic windshield

1992-12-22

1994-08-02

Lerner, Martin

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

156 99, 359 14, 359361, 359575, G02B 532, G02B 2742, G03H 100

Patent

active

053350995

ABSTRACT:
A zero-degree mirror reflection hologram is embedded into a vehicle windshield to reduce veiling glare. The hologram partially reflects sunlight in the visible wavelength range incident on the windshield between 0 and substantially 70 degrees, and therefore blocks a substantial portion of visible sunlight that would otherwise pass through the windshield and reflect off the dashboard. The portion of light that does reflect off the dashboard which could enter the driver's eyebox does not reflect appreciably off the hologram because the hologram reflection peak is in the ultraviolet at high off-axis angles.

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patent: 4981332 (1991-01-01), Smith
patent: 4998784 (1991-03-01), Freeman et al.
patent: 5066525 (1991-11-01), Nakamachi et al.
patent: 5138469 (1992-08-01), Wood et al.
patent: 5138470 (1992-08-01), Moss et al.
patent: 5153751 (1992-10-01), Ishikawa et al.
patent: 5162927 (1992-11-01), Moss et al.
patent: 5196951 (1993-03-01), Wreede
patent: 5214425 (1993-05-01), Wreede
patent: 5243449 (1993-09-01), Smith

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