Electronic controller of exposure time of photosensitive...

Details Electronic controller of exposure time of photosensitive... Electronic controller of exposure time of photosensitive...

G - Physics

01

J

95/28, 73/51

G01J 1/10 (2006.01) G03B 27/73 (2006.01) G03B 27/80 (2006.01)

Patent

CA 1065666

Abstract of the Disclosure This invention relates to a control apparatus for regulating the exposure time of a photosensitive material comprising a first photo- electrical transducer means adapted to be exposed to light from a source adapted to illuminate the photosensitive material and operative to produce an electrical output signal corresponding to the intensity of the light from the light source, electric motor means adapted to be driven in accordance with the value of said output signal, mechanical means for the division of a light beam into light pulses, said mechani- cal means being adapted to be driven by said motor means, a second photoelectrical transducer means adapted to receive the light pulses from said mechanical means, and counter means for comparing the num- ber of output pulses derived from said second photoelectrical transducer means with a predetermined number of pulses representing a desired exposure time.

246299

Affiliated with

Also associated with

Rating

Electronic controller of exposure time of photosensitive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic controller of exposure time of photosensitive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic controller of exposure time of photosensitive... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1103149