Two-terminal optical sensor

Details Two-terminal optical sensor Two-terminal optical sensor

1978-11-02

1981-05-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250214R, G01J 132

Patent

active

042700469

ABSTRACT:
A two-terminal optical sensor circuit comprising a light-emitting diode, phototransistor, amplifier, and current source electrically and optically coupled so as to approximate an ideal switch in one quadrant of its V-I characteristic. A remote object is detected when it moves into the optical path between the light source and sensor.

REFERENCES:
patent: 3631250 (1971-12-01), Buskirk
patent: 3639768 (1972-02-01), Mancini
patent: 3721123 (1973-03-01), Heim
patent: 3725665 (1973-04-01), Talmo
patent: 4129785 (1978-12-01), Kadah
Adirovich et al., "Soviet Physics-Doklady," vol. 11, No. 5, pp. 419-421, Nov. 1966.
Adirovich et al., "Soviet Physics-Doklady, " vol. 14, No. 6, pp. 538-541, Dec. 1969.
Adirovich et al., "Soviet Physics-Doklady," vol. 14, No. 6, pp. 550-552, Dec. 1969.
Adirovich et al., "Soviet Physics-Doklady," vol. 14, No. 6, pp. 578-580, Dec. 1969.

Affiliated with

Also associated with

Rating

Two-terminal optical sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-terminal optical sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-terminal optical sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-454908