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:
Apr. 29, 2003
Filed:
May. 09, 2001
Moriyasu Shirayanagi, Saitama-ken, JP;
Pentax Corporation, Tokyo, JP;
Abstract
A design method of a spectacle lens includes step for selecting one or more lens parameters as variables among a plurality of lens parameters, step for assigning values of the same optical aberration at different evaluation points on the lens to all of evaluation functions that evaluate optical aberration and step for optimizing the selected lens parameters by setting target values of the evaluation functions to zero. The optimizing step includes repetition of step for calculating the magnitude of the evaluation function at each evaluation point on the lens and step for adjusting the values of the selected lens parameters such that the evaluation functions are closer to zero.