Optical memory

Details Optical memory Optical memory

1987-10-06

1989-05-09

Sikes, William L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369100, 369113, 369114, 369115, 369121, 346 76L, 346125, 346138, 358296, 358300, G11B 700, G01D 1510, H04N 121

Patent

active

048295035

ABSTRACT:
Disclosure is made of an optical memory wherein a cylindrical information carrier (2) is disposed in a stationary cylindrical container (14) filled with a liquid or gaseous medium transparent for the radiation flux emitted by a source (1) of modulated coherent radiation. The cylindrical information carrier (2) is equipped with a rotational drive. A recording coating (12) is applied on a tubular base (11) of the cylindrical information carrier (2). The cylindrical information carrier (2) is optically connected with the source (1) of modulated coherent radiation and with an addressing unit (3) arranged so that its optical elements can move axially with respect to the cylindrical information carrier (2).

REFERENCES:
patent: 3373414 (1968-03-01), Carter
patent: 3925607 (1975-12-01), Hauber
patent: 4074282 (1978-02-01), Balas, Jr. et al.
patent: 4233612 (1980-11-01), Hirayama et al.
patent: 4297713 (1981-10-01), Ichikawa et al.
patent: 4351005 (1982-09-01), Imai et al.
patent: 4528580 (1985-07-01), Inoue et al.
patent: 4564850 (1986-01-01), Kazuharu
patent: 4693548 (1987-09-01), Tsunoi
patent: 4717925 (1988-01-01), Shibata et al.
IEEE Spectrum, 1979, II, No. 2, pp. 33-38.

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