Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1981-10-30
1984-05-15
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
250227, 455612, 455618, 350 9615, G01J 132, G02B 514
Patent
active
044490437
ABSTRACT:
An optical power source control system having a four port optical coupler, an optical receiver and associated comparator circuits operably connected to the optical transmission line connecting the source to an output connector. When the output connector is mated with another connector, the receiver senses the optical energy reflected from the glass/air and air/glass interfaces of the connectors and provides an appropriate signal. This signal is sufficiently high when compared to a threshold voltage level to permit the power source to operate. When the output connector is in the unmated condition the reflected optical power from the air/glass interface is no longer present and therefore the signal from the receiver falls below the threshold voltage level. With this reduced signal level, power flow to the optical source is removed or reduced thereby controlling the operation of the optical power source.
REFERENCES:
patent: 2679595 (1954-05-01), Spencer
patent: 3069624 (1962-12-01), Friedman
patent: 3943573 (1976-03-01), Budmiger
patent: 4032860 (1977-06-01), LeVeen
patent: 4054366 (1977-10-01), Barroski et al.
patent: 4076375 (1978-02-01), Muska et al.
patent: 4281245 (1981-07-01), Brogardh et al.
Brophy J.
Erlich Jacob N.
Nelms David C.
Singer Donald J.
The United States of America as represented by the Secretary of
LandOfFree
Optical power source control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical power source control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical power source control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-847401