Photosensitive element having supplementary light sensitive regi

Details Photosensitive element having supplementary light sensitive regi Photosensitive element having supplementary light sensitive regi

1985-03-05

1987-06-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

354403, G01J 120

Patent

active

046755179

ABSTRACT:
A photosensitive element having first and second sensitive regions arranged to receive a light spot in such a way that as the light spot lies astride the boundary therebetween, the ratio of the areas of the two parts of the spot light which are received by the first and second sensitive regions, respectively, varies depending on the received position of the light spot, whereby the received position of the light spot is detected from the variation of the ratio of the outputs of the first and second sensitive regions, wherein an error of variation of the ratio of the outputs of the first and second sensitive regions for the received position of the light spot, which takes place when the diameter of the received spot light is so large as to overrun the first and second sensitive regions, is corrected by providing a supplementary sensitive region surrounding the first or second sensitive region.

REFERENCES:
patent: 4381557 (1983-04-01), Jebens

Affiliated with

Also associated with

Rating

Photosensitive element having supplementary light sensitive regi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photosensitive element having supplementary light sensitive regi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photosensitive element having supplementary light sensitive regi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-723165