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. 19, 2011
Filed:
Jun. 18, 2008
Applicants:
Yuji Kato, Okazaki, JP;
Hidenori Shoji, Okazaki, JP;
Tsuyoshi Fukagawa, Okazaki, JP;
Inventors:
Assignee:
Tokai Optical Co., Ltd., Okazaki-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spectacle lens is provided with a lens base material and an antireflection film provided on the lens base material (an inner surface and an outer surface seen from a spectacle wearing person). The lens base material is colored with a dye. The antireflection film (antireflection coating layer) is formed by a vapor deposition method such that it slightly reflects incident light in the same color as that presented by the lens base material and transmits all of the remainder. The same color as referred to herein means that the chromaticity coordinate values are equal to each other.