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:
Sep. 05, 2017
Filed:
Oct. 27, 2014
Applicant:
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Inventors:
Assignee:
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/58 (2006.01); G02B 1/11 (2015.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); G02B 27/09 (2006.01); G02B 5/00 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
G02B 27/58 (2013.01); G02B 1/11 (2013.01); G02B 5/005 (2013.01); G02B 5/205 (2013.01); G02B 5/206 (2013.01); G02B 5/208 (2013.01); G02B 5/223 (2013.01); G02B 5/281 (2013.01); G02B 27/0927 (2013.01);
Abstract
An optical element in which transmittance of light monotonically decreases from a center portion toward a peripheral portion, the optical element includes an absorbing material portion made of a material that absorbs a part of light and formed such that its thickness monotonically increases from the center portion toward the peripheral portion; and a transparent material portion made of a material that transmits light and is stacked on the absorbing material portion, a total thickness of the absorbing material portion and the transparent material portion being substantially constant.