Photo-recording media and photo-recording method

Details Photo-recording media and photo-recording method Photo-recording media and photo-recording method

1989-03-20

1992-06-02

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Liquid crystal process, composition, or product

430338, 430345, 430 19, 25229901, 252582, 252586, 252589, G03F 103, G03C 1100

Patent

active

051185865

ABSTRACT:
In accordance with the present invention, there are provided photo-recording media comprising photochromic compounds having been dispersed or dissolved in stretched films or nematic liquid crystals, the transition moment of light absorption of said photochromic compounds being orientated in a definite direction. In the photo-recording media as provided, an information recorded in the photochromic compounds can be read out without destroying the same.

REFERENCES:
patent: 3212898 (1965-10-01), Cerrata
patent: 3397059 (1968-08-01), Dorion et al.
patent: 4702945 (1987-10-01), Etzbach et al.
patent: 4963448 (1990-10-01), Ichimura et al.
patent: 5024784 (1991-06-01), Eich et al.

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