Zoom viewfinder

Details Zoom viewfinder Zoom viewfinder

1991-10-28

1992-12-22

Gellner, Michael L.

Optical: systems and elements

Prism

With reflecting surface

359644, G03B 1310

Patent

active

051737272

ABSTRACT:
A compact Galilean-type zoom finder suitable for compact cameras, and the like whose zoom ratio is about 2. The zoom finder is comprised of four units having negative, negative, positive and negative refractive powers in order from an object side. The first and the fourth lens units are fixed and the second and the third lens units are moved to perform zooming.

REFERENCES:
patent: 4725130 (1988-02-01), Ozawa
patent: 4854680 (1989-08-01), Kikuchi
patent: 4906078 (1990-03-01), Inabata et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-977230