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.

Date of Patent:
Jun. 20, 2017

Filed:

May. 01, 2015
Applicant:

Frontier Scientific, Inc., Logan, UT (US);

Inventors:

Dustin Robert Cefalo, Hudrum, UT (US);

Jerry Charles Bommer, Franklin, ID (US);

Anita Trajkovska-Broach, Christiansburg, VA (US);

Ronald David Blum, Roanoke, VA (US);

Andrew Ishak, Havre de Grace, MD (US);

Sean McGinnis, Roanoke, VA (US);

Assignee:

Frontier Scientific, Inc., Logan, UT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/23 (2006.01); C09B 47/00 (2006.01); G02B 1/04 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01); C07B 47/00 (2006.01); C07D 487/22 (2006.01); C09D 1/00 (2006.01); C09D 11/00 (2014.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09K 3/00 (2006.01);
U.S. Cl.
CPC ...
C09B 47/00 (2013.01); G02B 1/04 (2013.01); G02B 1/041 (2013.01); G02B 1/043 (2013.01); G02B 5/208 (2013.01); G02B 5/223 (2013.01);
Abstract

A system is provided comprising an optical filter. The optical filter comprises a Cu-porphyrin dye compound. The transmission spectrum of the system has an average transmission across the wavelength range of 460 nm-700 nm of at least 80%. The transmission spectrum of the system has an average transmission across the wavelength range 400 nm-460 nm that is less than 75%.


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