Varifocal lens system

Details Varifocal lens system Varifocal lens system

1985-02-20

1987-11-24

Corbin, John K.

350465, 350469, G02B 1502, G02B 934, G02B 960

Patent

active

047084421

ABSTRACT:
A varifocal lens system equipped with an auxiliary lens group comprising a master lens system consisting of a front lens group having positive refractive power and a rear lens group having negative refractive power, and an auxiliary lens group arranged in such a manner that it can be freely inserted and removed, for varying focal length, between said front and rear lens groups. Said varifocal lens system is equipped with a simple mechanism capable of varying focal length of said lens system in a very short time.

REFERENCES:
patent: 4146305 (1979-03-01), Tanaka
patent: 4157211 (1979-06-01), Tanaka et al.
patent: 4596447 (1986-06-01), Yamada et al.

Affiliated with

Also associated with

Rating

Varifocal lens system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2421972