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:
Jun. 11, 2013
Filed:
Mar. 27, 2009
Yusuke Hayashi, Tokyo, JP;
Tomoya Sugita, Tokyo, JP;
Naoto Ohara, Tokyo, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
An image pickup apparatus including an optical system having an optical element including an optical wavefront modulation function; and a detector at a focal position of the optical system, capturing an object image having passed through the optical system, wherein the optical element including the optical wavefront modulation function has a capability of decreasing an alteration of an optical transfer function in an entire screen due to a difference of object distances, and wherein an absolute value of a focal length of the optical element including the optical wavefront modulation function is greater than an absolute value of a focal length of the entire optical system.