Optical information reading apparatus

Details Optical information reading apparatus Optical information reading apparatus

1984-06-20

1986-12-30

McElheny, Jr., Donald

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369118, 369122, G11B 7125, G11B 718

Patent

active

046334572

ABSTRACT:
An optical information reading apparatus wherein the intensity distribution of a light beam projected onto a video disk through an objective optical system is so made that the intensity in the direction along an information track is larger than the intensity in the direction intersecting at right angles with the information track in order to improve S/N and to eliminate cross-talks.

REFERENCES:
patent: 3913076 (1975-10-01), Lehureau et al.
patent: 4006293 (1977-02-01), Bouwhuis et al.
patent: 4125859 (1978-11-01), Oshida et al.
patent: 4142210 (1979-02-01), Otobe et al.
patent: 4198701 (1980-04-01), Reddersen et al.
patent: 4209793 (1983-06-01), Ueno
patent: 4235507 (1980-11-01), Kataoka et al.
patent: 4310910 (1982-01-01), Sheng
patent: 4325135 (1982-04-01), Dil et al.
patent: 4375096 (1983-02-01), Gorog et al.

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