Optical recording and reproducing apparatus

Details Optical recording and reproducing apparatus Optical recording and reproducing apparatus

1987-04-13

1988-09-13

Faber, Alan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369110, 369111, 346 76L, G11B 712

Patent

active

047714131

ABSTRACT:
An optical recording and reproducing apparatus with a first light source for generating a recording laser beam, a second light source for generating a reproducing beam which has shorter wavelength than that of the recording laser beam. Information is recorded by forming pits on a recording member by the recording laser beam, and reproduced by directing the reproducing laser beam onto the pits and obtaining the beam reflected beam from the pits.

REFERENCES:
patent: 3736046 (1973-05-01), Zook
patent: 4085423 (1978-04-01), Tsunoda
patent: 4225873 (1980-09-01), Winslow
patent: 4564931 (1986-01-01), Ohara

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