Filter device for reflex optical system zoom lens

Details Filter device for reflex optical system zoom lens Filter device for reflex optical system zoom lens

1981-09-10

1986-05-13

Corbin, John K.

350315, G02B 522

Patent

active

045882665

ABSTRACT:
A filter device for a reflex optical system zoom lens having a front group of lenses and a rear group of lenses has filters in turret form located between said front and rear group of lenses and means for rotating the filters as a filter ring is turned. Since the diameter of a bundle of rays in the rear part of the zoom lens utilizing a reflex optical system is larger than the diameter of the bundle of rays between the front and rear groups of lenses, the size and weight of the filters is substantially reduced.

REFERENCES:
patent: 2460507 (1949-02-01), Johnston
patent: 2687669 (1954-08-01), Bolsey
patent: 3914024 (1975-10-01), Tanabe et al.

Affiliated with

Also associated with

Rating

Filter device for reflex optical system zoom lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter device for reflex optical system zoom lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter device for reflex optical system zoom lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1766743