Patent Number: 6,297,915

Title: Image pickup lens

Abstract: In a biconvex lens 1, at least one of faces thereof is formed into anaspherical shape, so that the radius of curvature of the second face ofthe lens 1 is equal to or larger than 0.65 times the focal length, and theradius of curvature of the first face is over 3 times the radius ofcurvature of the second face. Thus, the lens can be produced easily at asmall size and a light weight.

Inventors: Kaneko; Isamu (Kawaguchi, JP), Saito; Tomohiro (Kawaguchi, JP)


International Classification:

Expiration Date: 10/02/2013