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. 14, 2017
Filed:
Mar. 15, 2013
Citizen Holdings Co., Ltd., Tokyo, JP;
Kenji Matsumoto, Tokyo, JP;
Ayano Tanabe, Tokyo, JP;
Nobuyuki Hashimoto, Saitama, JP;
Makoto Kurihara, Saitama, JP;
Masafumi Yokoyama, Tokyo, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
Abstract
An aberration correction device () corrects wave front aberration arising in an optical system that includes an object lens () disposed in an optical path for light beams output by a coherent light source (). The aberration correction device () has a symmetrical aberration correction element () that corrects symmetrical aberrations, which are the wave front aberrations that are symmetrical with respect to the optical axis among the wave front aberrations generated in the optical path, and an asymmetrical aberration correction element () that corrects asymmetrical aberrations, which are wave front aberrations that are asymmetrical with respect to the optical axis, generated in light beams incident obliquely on the object lens ().