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:
Dec. 25, 2018
Filed:
Nov. 20, 2015
Nikon Corporation, Tokyo, JP;
Radka Tezaur, Belmont, CA (US);
NIKON CORPORATION, , JP;
Abstract
A method for estimating an optics point spread function () of a lens assembly () includes (i) providing a test chart (); (ii) providing a capturing system (); (iii) capturing a test chart image () of the test chart () with the capturing system () using the lens assembly () to focus light onto the capturing system (); (iv) selecting an image area () from the test chart image (); (v) dividing the image area () into a plurality of area blocks (); and (vii) estimating an area point spread function () of the image area () using a PSF cost function that sums the fidelity terms of at least two of the area blocks ().
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