Optical recording/reproducing module having reduced size

Details Optical recording/reproducing module having reduced size Optical recording/reproducing module having reduced size

1988-11-29

1991-09-17

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 44140, 369120, 369121, G11B 7135

Patent

active

050501542

ABSTRACT:
An optical recording/reproducing module comprises a housing defined with a depression, a focusing actuator provided on one side of the housing for carrying an objective lens such that the lens is movable in a direction perpendicular to the aforementioned one side, an optical system accommodated in the depression, the optical system includes an optical source for producing a first optical beam to be directed to the objective lens, an optical detector for detecting a second optical beam received by the objective lens and incident to the optical detector, the optical detector further produces an electrical output signal responsive to the second optical beam, and an array of optical elements for guiding the first optical beam produced by the optical source to the objective lens and for guiding the second optical beam received by the objective lens to the optical detector, a cover lid adapted to be mounted on the one side of the housing, the cover lid has a shape adapted to close the depression, and an electrical system provided on the cover lid for driving the optical source and for amplifying the electrical output signal from said optical detector.

REFERENCES:
patent: 4564757 (1986-01-01), LaBudde et al.
patent: 4719614 (1988-01-01), Leterme et al.
patent: 4730899 (1988-03-01), Kime et al.
patent: 4791290 (1988-12-01), Noone et al.
patent: 4792674 (1988-12-01), Hirano
patent: 4879630 (1989-11-01), Boucard et al.
patent: 4890194 (1989-12-01), Derryberry et al.
patent: 4906839 (1990-03-01), Lee
patent: 4956833 (1990-09-01), Kokado et al.

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