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:
Mar. 07, 2023

Filed:

Nov. 17, 2021
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yuki Yonetani, Kanagawa, JP;

Shigeru Ichihara, Tokyo, JP;

Yasuhiro Sekine, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/44 (2006.01); G01N 21/65 (2006.01);
U.S. Cl.
CPC ...
G01J 3/44 (2013.01); G01N 21/65 (2013.01);
Abstract

An identification apparatus includes a plurality of collecting units configured to collect scattered light from a plurality of test items, a first spectroscopic unit configured to disperse light from part of the plurality of collecting units, a second spectroscopic unit configured to disperse light from a remaining part of the plurality of collecting units, an imaging unit configured to acquire a first spectrum projected from the first spectroscopic unit and a second spectrum projected from the second spectroscopic unit, the imaging unit including a plurality of light receiving elements arranged at least in a first direction, and an acquisition unit configured to acquire information about the test items based on an output signal from the imaging unit. One of a wavenumber of the first spectrum and a wavenumber of the second spectrum in the first direction increases while the other one decreases.


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