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. 02, 2025
Filed:
Jun. 25, 2015
Applicants:
Nitto Denko Corporation, Osaka, JP;
Peng Wang, San Diego, CA (US);
Sergey Simavoryan, San Diego, CA (US);
Isamu Kitahara, San Diego, CA (US);
Sheng LI, San Diego, CA (US);
Inventors:
Peng Wang, San Diego, CA (US);
Sergey Simavoryan, San Diego, CA (US);
Isamu Kitahara, San Diego, CA (US);
Sheng Li, San Diego, CA (US);
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/00 (2006.01); G02B 5/20 (2006.01); G02C 7/10 (2006.01); G03H 1/04 (2006.01); G03H 1/18 (2006.01); G03H 1/26 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0005 (2013.01); G02B 5/203 (2013.01); G02C 7/104 (2013.01); G03H 1/0402 (2013.01); G03H 1/0408 (2013.01); G03H 2001/0439 (2013.01); G03H 2001/0441 (2013.01); G03H 2001/186 (2013.01); G03H 1/26 (2013.01); G03H 2227/02 (2013.01); G03H 2270/55 (2013.01);
Abstract
Described herein are devices, compositions, and methods for improving color discernment. In particular, devices and methods for correcting color blindness comprising a hologram that enhances the ability to distinguish a desired first bandwidth by decreasing the transmission of a second bandwidth. Advantageously, the device appears not tinted to outside observer.