Photochromic glasses exhibiting dichroism, birefringence and col

Details Photochromic glasses exhibiting dichroism, birefringence and col Photochromic glasses exhibiting dichroism, birefringence and col

1976-11-05

1978-11-14

Vertiz, O. R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 47R, 106 47Q, 106 52, 106DIG6, 106 53, 65 30R, C03C 326, C03C 308, C03C 330

Patent

active

041254040

ABSTRACT:
Silver halide-containing photochromic glasses are rendered optically anisotropic by darkening with actinic radiation and irradiating with linearly polarized bleaching light. A photochromic glass so treated will be optically isotropic when it returns to the clear state, but may again become optically anisotropic when redarkened. Color adaptation results when darkened silver halide-containing photochromic glasses are irradiated with colored optical bleaching light.

REFERENCES:
patent: 3208860 (1965-09-01), Armistead et al.
patent: 3540793 (1970-11-01), Araujo et al.
patent: 3734754 (1973-05-01), Randall et al.
patent: 3920463 (1975-11-01), Simms
patent: 4017318 (1977-04-01), Pierson et al.
patent: 4075024 (1978-02-01), Armistead

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