Photoelectric sensing system with light source compensating mean

Details Photoelectric sensing system with light source compensating mean Photoelectric sensing system with light source compensating mean

1975-12-16

1977-10-18

Smith, Alfred E.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250552, 250214AG, G01J 132

Patent

active

040547957

ABSTRACT:
A photoelectric sensing system for detecting the occurrence of interruptions of a light beam is arranged to compensate for non-interrupting short-term variations occurring during transmission of the light beam. A clock controlled memory element enables a light emitting generator to generate a serial train of light pulse signals. Each generated light pulse signal is sensed by a sensor arranged to control the memory element to modulate the emitted light pulse signal to compensate for short-term variations occurring in the light signal transmission path.

REFERENCES:
patent: 3742222 (1973-06-01), Endl
patent: 3819947 (1974-06-01), Johnson et al.
Thomas, Jr. and Tyndall, Jr. "Digital Feedback Light-Emitting Diode Control" IBM Technical Disclosure Bulletin, vol. 16, No. 8, Jan. 1974.

Affiliated with

Also associated with

Rating

Photoelectric sensing system with light source compensating mean does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoelectric sensing system with light source compensating mean, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectric sensing system with light source compensating mean will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1448807