Optical system for reproducing information

Details Optical system for reproducing information Optical system for reproducing information

1980-06-06

1983-10-25

Corbin, John K.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369118, 369122, 372 43, G02B 1700

Patent

active

044115008

ABSTRACT:
An optical system characterized in that a plano-convex lens for guiding onto a disk a light beam emitted from a semiconductor laser, and a prism for deriving reflected light from the disk are unitarily formed.

REFERENCES:
patent: 1712112 (1929-05-01), Kauffel
patent: 3396344 (1968-08-01), Broom
patent: 3773404 (1973-11-01), Moore
patent: 3784286 (1974-01-01), Dudrange
patent: 3974507 (1976-08-01), Chemelli et al.
patent: 4171870 (1979-10-01), Bruning et al.
patent: 4283147 (1981-08-01), Dreyfus et al.
patent: 4333173 (1982-06-01), Yonezawa et al.
Takeda et al., "Use of Heterostructure Diode Lasers in Video Disk Systems," Applied Optics; vol. 17, No. 6; Mar. 15, 1978.

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