Photodetector arrangements and circuits

Details Photodetector arrangements and circuits Photodetector arrangements and circuits

1982-03-15

1983-08-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313574, 313542, H01J 3912

Patent

active

RE0313505

ABSTRACT:
An improved photodetector arrangement comprises positioning a photodetector having at least one semitransparent cathode so that the light beam striking the cathode passes through it at least twice before exiting from the photodetector. In another embodiment of the invention, a second photodetector is positioned relative to a first photodetector so that the light beam, after striking the first photodetector, strikes the second photodetector. Where the two photodetectors are employed, they may be electrically connected in parallel.

REFERENCES:
patent: 3218196 (1965-11-01), Jensen et al.
patent: 3609353 (1971-09-01), Paine
patent: 4070112 (1978-01-01), Tsunazawa et al.

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