Optical logic device with PNPN detection and laser diode output

Details Optical logic device with PNPN detection and laser diode output Optical logic device with PNPN detection and laser diode output

1990-03-07

1991-10-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250551, 377102, H01J 3150

Patent

active

050597884

ABSTRACT:
A laser diode and an optical switching device are connected in parallel relative to a power supply. The optical switching device is turned on by receiving an input light, and stores the ON state, so that the laser device is turned off. As a result, an electric power consumption is decreased, the structure is simplified, and the adjustment becomes easy.

REFERENCES:
patent: 3708672 (1973-01-01), Marinkovic
patent: 4475046 (1984-10-01), Nishida et al.
IBM Technical Disclosure Bulletin, vol. 4, No. 1, Jun. 1961.
IBM Technical Disclosure Bulletin, vol. 12, No. 10, Mar. 1970.

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