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. 03, 2015
Filed:
Jul. 29, 2011
Tetsuma Yamakaji, Saitama, JP;
Tetsuma Yamakaji, Saitama, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An optical system is configured using a coordinate system such that an originis placed at a middle point of centers of rotationsL andR of both eyeballsL andR, and an object is specified in a viewing direction from the origin. A reference value of an angle of convergence θis calculated with lines of fixationsLandR, a viewing direction of the lines of fixation being an objectwhich is placed at an intersection point at which the lines of fixationsLandRcross after passing through design reference pointsPL andPR of eyeglass lensesL,R. The angle of convergence is calculated with the lines of fixations which extend to an object evaluation point in an arbitrary viewing direction and pass the eyeglass lenses, and a convergence aberration is calculated from a difference between the angle of convergence and the reference value of the angle of convergence θ.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile