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:
Nov. 04, 2008
Filed:
May. 30, 2006
Applicants:
Moriyasu Shirayanagi, Saitama-ken, JP;
Hiroaki Fujii, Tokyo, JP;
Inventors:
Moriyasu Shirayanagi, Saitama-ken, JP;
Hiroaki Fujii, Tokyo, JP;
Assignee:
Seiko Optical Products Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spectacle lens having an aspherical surface on its one of front and back surfaces is provided. An outward normal line normal to the front surface at a centration point inclines with respect to an axis passing through the centration point and a center of rotation of an eye. A cross section of the aspherical surface defined by a plane including the outward normal line and the axis is asymmetrical.