Optical information processing device using optical shutter elem

Details Optical information processing device using optical shutter elem Optical information processing device using optical shutter elem

1987-07-27

1989-04-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250212, 250209, G01D 534

Patent

active

048188670

ABSTRACT:
An optical information processing device includes a light receiving and driving circuit including photo voltaic elements adapted to receive an incident light and to produce a drive voltage, and an optical shutter driven by the drive voltage produced by the light receiving and driving circuit. With this structure, various basic logical operations are performed by the device according to the present invention. As a feature of the invention, the device receives a pair of incident lights having a complementary relation in strength with each other and produces a pair of output lights from the optical shutters which also are complementary in strength with each other. Thus, the possibility of errors in logical operations is greatly reduced.

REFERENCES:
patent: 3270187 (1966-08-01), Fomenko
patent: 3612847 (1971-10-01), Jorgensen
patent: 3996455 (1976-12-01), Schaefer et al.

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