Miniaturized semi-wide-angle photographic lens

Details Miniaturized semi-wide-angle photographic lens Miniaturized semi-wide-angle photographic lens

1977-09-07

1979-05-15

Clark, Conrad J.

G02B 934

Patent

active

041545095

ABSTRACT:
A miniaturized semi-wide-angle photographic lens having a field of view angle of from .+-.27.degree. to .+-.28.degree. is composed of five lenses grouped in four lens components. In order from the object side to the image side, the first lens is a positive lens having its surface of greater curvature toward the object, and the second lens is a double concave lens. The third lens and the fourth lens are respectively a negative lens and a positive lens, both of which constitute a cemented doublet lens. The fifth lens is a positive meniscus lens having its surface of greater curvature toward the image.

REFERENCES:
patent: 2587347 (1948-11-01), Lowenthal
patent: 3011401 (1958-09-01), Sandback
patent: 3011402 (1958-12-01), Johnson
patent: 4093348 (1978-06-01), Yasukuni

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1094636