Patent · US Active

Image sensing lens and image sensing module

US8373936B2 · kind B2 · utility

3Cited by

11References

8Claims

0Family size

Assignee

SHARP KABUSHIKI KAISHA · JP

Inventors

Norimichi Shigemitsu · Sakai, JP
Hiroyuki Hanato · Tokyo, JP

Key dates

Filing date	Mar 22, 2011
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Jun 8, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/004
WIPO fieldOptics
WIPO sectorInstruments

Abstract

To provide an image sensing lens and an image sensing module each of which includes four lenses and each of which corrects aberrations well and has a great resolving power and a reduced height, an image sensing lens includes (i) a third lens which has a surface facing an image surface, the surface being an aspheric surface and (ii) a fourth lens which has a surface facing an object and a surface facing the image surface, the surfaces being each an aspheric surface. The image sensing lens satisfies the following Formulae (1) through (3):0.51<f1/f<0.78 (1)−1.63<f2/f<−0.97 (2)v1−v2>20 (3).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.