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:
Oct. 05, 2021
Filed:
Mar. 26, 2019
Applicant:
Hoya Lens Thailand Ltd., Pathumthani, TH;
Inventor:
Yoichi Ogo, Tokyo, JP;
Assignee:
HOYA LENS THAILAND LTD., Pathumthani, TH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/08 (2006.01); G02B 5/28 (2006.01); G02B 1/115 (2015.01); G02B 1/04 (2006.01); G02C 7/10 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
G02C 7/088 (2013.01); G02B 1/041 (2013.01); G02B 1/115 (2013.01); G02B 5/22 (2013.01); G02B 5/28 (2013.01); G02B 5/285 (2013.01); G02C 7/10 (2013.01);
Abstract
The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 21.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm measured on an object-side surface is 1.00% or less, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on an eyeball-side surface is 1.00% or less.