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. 24, 2017
Filed:
May. 12, 2015
Applicant:
High Performance Optics, Inc., Roanoke, VA (US);
Inventors:
Andrew Ishak, Havre de Grace, MD (US);
Ronald Blum, Roanoke, VA (US);
Anita Trajkovska-Broach, Christiansburg, VA (US);
Assignee:
High Performance Optics, Inc., Roanoke, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/10 (2006.01); G02B 1/11 (2015.01); G02B 5/20 (2006.01); G02B 1/14 (2015.01);
U.S. Cl.
CPC ...
G02C 7/104 (2013.01); G02B 1/11 (2013.01); G02B 5/20 (2013.01); G02B 5/208 (2013.01); G02C 7/10 (2013.01); G02C 7/108 (2013.01); G02B 1/14 (2015.01);
Abstract
A system is provided that selectively blocks blue light in addition to having low overall transmittance values. The average value of the transmission spectrum of the system across the wavelength range 400 nm-470 nm is between 0% and 30% and the average value of the transmission spectrum across the wavelength range 470 nm-700 nm is between 0% and 70%. The transmission spectrum of the system has a first local minimum in transmission between 400 nm-470 nm.