Motor driven focal length changing device for a camera

Details Motor driven focal length changing device for a camera Motor driven focal length changing device for a camera

1984-10-25

1986-07-22

Adams, Russell E.

3541731, 354400, G03B 300

Patent

active

046015639

ABSTRACT:
In the automatic film transportation type camera using an electric motor in which upon a forward rotation thereof the film is wound and upon a reversed rotation thereof the film is rewound, a mechanism for moving a photographic lens barrel between a standard or wide angle setting and a telephoto setting is provided with a clutch capable of transferring the motion of the motor from a rewind fork to the moving mechanism, and a switch arranged to be closed when the clutch is cut off, thereby the motor is energized to rotate in the reverse direction, driving the barrel to move axially from one of the settings to the other, while leaving the rewind fork stationary.

REFERENCES:
patent: 4294527 (1981-10-01), Hashimoto et al.
patent: 4295715 (1981-10-01), Breen
patent: 4346972 (1982-08-01), Takahashi
patent: 4364649 (1982-12-01), Mamiya et al.

Affiliated with

Also associated with

Rating

Motor driven focal length changing device for a 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 Motor driven focal length changing device for a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor driven focal length changing device for a camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-862796