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:
Oct. 15, 2013
Filed:
Nov. 01, 2006
Tsukasa Murata, Yamato, JP;
Tsukasa Murata, Yamato, JP;
Nikon Corporation, Tokyo, JP;
Abstract
In a distortion correcting method for an image taken by an optical system, the invention makes it possible to increase the calculation accuracy of distortion of an image while reducing the amount of information to be prepared in advance. To this end, approximation information that is obtained when distortion aberration (A) of the optical system is approximated by a function (S: A(f, d)) of a shooting condition (d, f) that is set in the optical system is prepared in advance, and distortion of an image taken by the optical system is calculated based on the shooting condition that was set when the image was taken and the approximation information prepared in advance. Though being small in information amount, this approximation information makes it possible to calculate distortion aberration under every shooting condition.