Antiglare optical device

Details Antiglare optical device Antiglare optical device

1994-12-13

1996-07-30

Nguyen, Viet Q.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359265, 359237, 359298, 359238, 359239, 359242, G02B 2710, G02B 2300

Patent

active

055417620

ABSTRACT:
A device for viewing an object field containing intense light sources which could be disturbing or harmful to the human eye. Light from the object field is focused at a focal plane located within a layer of photochromic material. An intense light source produces an opaque mask in the photochromic layer. This mask matches the location and shape of the image of the intense light source at the image plane. An eyepiece permits a viewer to view the image plane to obtain an image of the object field with light from the intense light source dimmed by the opaque mask in the photochromic layer.

REFERENCES:
patent: 4447128 (1984-05-01), Ferrer
patent: 5351151 (1994-09-01), Levy

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