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:
Jan. 14, 2020
Filed:
Mar. 13, 2018
Applicant:
Enchroma, Inc., Berkeley, CA (US);
Inventor:
Donald McPherson, Oakland, CA (US);
Assignee:
ENCHROMA, INC., Berkeley, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P 5/00 (2006.01); G02B 5/22 (2006.01); D06P 3/00 (2006.01); D06P 3/24 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
G02B 5/223 (2013.01); D06P 3/00 (2013.01); D06P 3/24 (2013.01); G02B 1/04 (2013.01);
Abstract
Described herein are optical filters that provide regulation and/or enhancement of chromatic and luminous aspects of the color appearance of light to human vision, and methods for designing and making the same. The filters have applications in ophthalmics, e.g., in prescription and nonprescription lenses.