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. 01, 2019
Filed:
Jan. 29, 2016
Applicant:
Mitsui Chemicals, Inc., Tokyo, JP;
Inventors:
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 26/00 (2006.01); G02B 5/20 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
G02B 26/007 (2013.01); G02B 5/20 (2013.01); G02B 5/30 (2013.01); G02B 27/288 (2013.01); G02C 7/10 (2013.01); G02C 7/104 (2013.01); G02C 7/12 (2013.01);
Abstract
Disclosed are: a practical color changeable optical filter that can change hue or saturation by a relatively simple structure, the color changeable optical filter including two or more polarizerscontaining a dichroism pigment and a framethat supports the polarizerswherein a polarization plane of light incident on at least one polarizeror a polarization plane of light output from at least one polarizeris rotated relatively, whereby the hue or saturation of light passing through the optical filter is changed; and eyeglasses provided with the color changeable optical filter.