Electrically operated automatic focalizing camera

Details Electrically operated automatic focalizing camera Electrically operated automatic focalizing camera

1980-01-22

1981-10-06

Gellner, Michael L.

G03B 310

Patent

active

042932068

ABSTRACT:
A camera including an automatic focalizing device with which the camera will automatically focus only upon objects within a predetermined range set by the photographer. The wiper of a potentiometer is coupled to the lens so that its operative position is determined by the position of the lens. The wiper is also electrically coupled to respective positive and negative comparison inputs of first and second comparators to the other inputs of which are applied voltages from a second potentiometer which are determinative of the selected range at which focalization may be achieved. The combined outputs of the comparators are coupled to the control input of an analog switch device coupled between the output of a focus detector and the control circuit of a lens positioning motor.

REFERENCES:
patent: 4223988 (1980-09-01), Jyojiki et al.

Affiliated with

Also associated with

Rating

Electrically operated automatic focalizing camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically operated automatic focalizing camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically operated automatic focalizing camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1203751