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:
Feb. 25, 2025

Filed:

Nov. 09, 2023
Applicant:

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

Inventors:

Yasuhisa Inada, Osaka, JP;

Atsushi Ishikawa, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); G01J 3/12 (2006.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); H01L 27/146 (2006.01); H04N 23/80 (2023.01); H04N 25/11 (2023.01);
U.S. Cl.
CPC ...
G01J 3/2823 (2013.01); G01J 3/12 (2013.01); G02B 5/201 (2013.01); G02B 5/288 (2013.01); H04N 23/80 (2023.01); G01J 2003/1213 (2013.01); G01J 2003/2826 (2013.01);
Abstract

An optical filter includes a filter array including filters two-dimensionally arrayed and a band-pass filter. The filters includes first and second filters. A transmission spectrum of each of the first and second filters has local maximum values of transmittance at three or more wavelengths included in a first wavelength region. The band-pass filter passes light in a second wavelength region including two or more wavelengths of the three or more wavelengths and not including one or more wavelengths of the three or more wavelengths. The filter array and the band-pass filter are disposed so that (a) the band-pass filter is located on an optical path of light that passes through the first and second filters or (b) the first and second filters are located on an optical path of light that passes through the band-pass filter.


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