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.

Date of Patent:
Jan. 06, 2026

Filed:

Oct. 29, 2020
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Yurika Tsubakino, Osaka, JP;

Hideki Wada, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/10 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
G02C 7/108 (2013.01); G02B 5/223 (2013.01); G02B 5/226 (2013.01); G02C 7/104 (2013.01);
Abstract

An optical filter in which, in a transmission spectrum of the optical filter, when: a minimum value of transmissivity for a wavelength range of from 400 nm to 450 nm, inclusive, is defined as first minimum value MIN1; a minimum value of transmissivity for a wavelength range of from 525 nm to 595 nm, inclusive, is defined as second minimum value MIN2; a maximum value of transmissivity for a wavelength range of from 450 nm to 525 nm, inclusive, is defined as first maximum value MAX1; and a maximum value of transmissivity for a wavelength range of from 595 nm to 600 nm, inclusive, is defined as second maximum value MAX2, first minimum value MAX1 and second minimum value MIN1 are each at most ½ a smaller one of first maximum value MAX1 and second maximum value MAX2.


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