Zoom lens device

Details Zoom lens device Zoom lens device

1975-05-01

1977-03-01

Sacher, Paul A.

350 39, 350176, 350183, 350196, G02B 1506

Patent

active

040099423

ABSTRACT:
A zoom lens device comprises a zooming section including a group of focusing lenses, a group of variator lenses and a group of compensator lenses, and a relay section for focusing the light beam from the zooming section. The zoom lens device permits its zooming section alone to be interchanged with another zooming section. By fitting this other zooming section to the relay section, the zoom lens device having different magnification, and so on can be obtained. The light beam from this other zooming section is substantially equal in aberration and image forming conditions to the light beam from the original zooming section.

REFERENCES:
patent: 2632370 (1953-03-01), Shepard
patent: 2940373 (1960-06-01), Beng et al.
patent: 3293357 (1966-12-01), Doi et al.
patent: 3547521 (1970-12-01), Ichizuka et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1349912