The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2013
Filed:
Jul. 09, 2010
Norimichi Shigemitsu, Osaka, JP;
Kenji Hirano, Osaka, JP;
Norimichi Shigemitsu, Osaka, JP;
Kenji Hirano, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
To realize an image pickup lens that can be applied to an image pickup module in which a solid-state image sensing device is used, that allows a reduction in manufacturing cost, and that easily maintains its desired resolving power, etc., the second lens has a surface facing the subject, and the surface includes a central portion sticking out toward the subject and a peripheral portion surrounding the central portion and sinking in toward the image surface. Further, the image pickup lens satisfies the mathematical expression 0.30<d/d<0.45, where dis the length of a segment between the center of that surface of the first lens which faces the subject and the center of that surface of the first lens which faces the image surface and d is the whole optical length of the image pickup lens.