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:
Mar. 31, 2020
Filed:
Jun. 12, 2017
Applicant:
Agc Inc., Chiyoda-ku, JP;
Inventors:
So Ishido, Koriyama, JP;
Atsushi Koyanagi, Koriyama, JP;
Assignee:
AGC Inc., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); C09B 57/00 (2006.01); H04N 5/33 (2006.01); G01J 1/04 (2006.01); G02B 5/22 (2006.01); C09B 67/44 (2006.01); C09B 67/46 (2006.01); C09B 67/22 (2006.01);
U.S. Cl.
CPC ...
G02B 5/281 (2013.01); C09B 57/007 (2013.01); C09B 67/009 (2013.01); C09B 67/0033 (2013.01); C09B 67/0083 (2013.01); G01J 1/0488 (2013.01); G02B 1/14 (2015.01); G02B 5/208 (2013.01); G02B 5/223 (2013.01); H04N 5/33 (2013.01);
Abstract
An optical filter is provided with a structure that contains a green coloring matter and a black coloring matter and satisfies the following requirements (i) and (ii). Further a device is provided with such an optical filter. (i) An average transmittance of light in the wavelength range of 400 to 730 nm is 2% or less. (ii) A continuous 50 nm wavelength range where an average transmittance is 80% or more exists in the wavelength range of 800 to 1000 nm.