Static information storage and retrieval – Radiant energy
Patent
1987-08-25
1989-04-04
Popek, Joseph A.
Static information storage and retrieval
Radiant energy
365120, G11C 1300, G02F 126
Patent
active
048192066
ABSTRACT:
An optical recording system which includes a recording medium of which the light absorption spectrum changes when exposed to light; a first transparent substrate provided on a first side of the recording medium; a plurality of first parallel transparent elongated electrodes provided on the first substrate; a second substrate provided on a second side of the recording medium opposite to the first side; a plurality of second parallel elongated electrodes provided on the second substrate in the direction perpendicular to the first elongated electrodes so as to form a plurality of recording spots at their intersections; a light source for directing a light beam to a plurality of the recording spots on the recording medium; and an electric field applying device for controlling the field strength of an electric field applied to a plurality of the recording spots to control the degree of change in the light absorption spectrum so that multiplex information recording is made in a dimension of electric field.
REFERENCES:
patent: 3614200 (1971-10-01), Taylor
patent: 3871745 (1975-03-01), Waku et al.
patent: 4101976 (1978-07-01), Castro et al.
A. I. M. Dicker et al, "Stark Effect on the S.sub.1 .rarw.S.sub.0 Transition, etc.", Chemical Physics Letters, vol. 94, No. 1, pp. 14-20, Jan. 7, 1983.
I. Tsunoda et al., Eikisho No Saishin Gijitsu (Advanced Technology of Liquid Crystal), Kogyo Chosakai, pp. 1051-112.
Mitsubishi Denki K.K.
Popek Joseph A.
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