Zoom lens mount and mechanism

Details Zoom lens mount and mechanism Zoom lens mount and mechanism

1976-04-29

1978-02-28

Pendegrass, Verlin R.

350206, 350255, G02B 1500, G02B 900, G02B 702

Patent

active

040763897

ABSTRACT:
A mount and mechanism for a symmetrical zoom lens in which the outer lens elements are stationary relative to the lens housing. The inner elements on one side of the center move in unison on one shaft driven in symmetrically opposite direction relative to another shaft on which the inner lens elements on the other side of the lens center move.
The entire zoom lens housing is mounted for sliding movement, between object and image, on a carriage which is in turn mounted for movement along a stationary frame. The frame includes an iris cam which is in engagement with an iris cam follower which in turn is connected by a linkage to the lens iris to control the lens aperture in response to the axial position along the carriage of the lens housing. The maximum opening of the lens iris is at the highest magnification and the minimum opening of the lens aperture is at the lower magnification.

REFERENCES:
patent: 2746350 (1956-05-01), Hopkins
patent: 2782683 (1957-02-01), Walker
patent: 3185029 (1965-05-01), Peck
patent: 3482500 (1969-12-01), Thomas
patent: 3591256 (1971-07-01), Hoyer
patent: 3631786 (1972-01-01), Crapsey

Affiliated with

Also associated with

Rating

Zoom lens mount and mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens mount and mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens mount and mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1672964