Small-size wide angle lens

Details Small-size wide angle lens Small-size wide angle lens

1983-03-14

1984-12-18

Corbin, John K.

350455, G02B 960

Patent

active

044887884

ABSTRACT:
Improvement in a small-size wide angle lens having a refractive power arrangement of so-called telephoto type, which has been demanded to meet the need of miniaturization of cameras. The lens of this type is composed of a front group having a positive refractive power and a rear group of negative meniscus lenses wherein a convex surface thereof is directed towards the image and greatly curved. In accordance with the present invention, there is provided a small-size wide angle lens wherein said rear group comprises two negative meniscus lenses, and the specific conditions are imposed on the lenses of said rear group to thereby make the aperture ratio small and provide well-corrected various aberrations, particularly, coma aberration.

REFERENCES:
patent: 4429958 (1984-02-01), Yamaguchi

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1985745