Inverted telephoto type wide angle lens

Details Inverted telephoto type wide angle lens Inverted telephoto type wide angle lens

1980-07-18

1982-09-07

Corbin, John K.

G02B 1304

Patent

active

043480853

ABSTRACT:
An inverted telephoto type wide angle lens comprises, in succession from the object side, a divergent first group, a diaphragm-forward convergent second group and a diaphragm-rearward convergent third group. The first group includes a positive meniscus lens having its convex surface facing the object side, and three negative meniscus lenses having their convex surfaces facing the object side. The second group includes two positive lenses, a negative meniscus lens having its convex surface facing the object side, and a positive lens. The third group includes a positive meniscus having its convex surface facing the image side, a doublet biconcave negative lens and two positive lenses. The lens system satisfies certain conditions.

REFERENCES:
patent: 3663095 (1972-05-01), Mori
patent: 4145116 (1979-03-01), Ikeda
patent: 4150872 (1979-10-01), Sugiyama

Affiliated with

Also associated with

Rating

Inverted telephoto type wide angle 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 Inverted telephoto type wide angle lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inverted telephoto type wide angle lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1339911