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. 30, 2024

Filed:

Feb. 26, 2021
Applicant:

Satake Corporation, Tokyo, JP;

Inventor:

Takahiro Doi, Tokyo, JP;

Assignee:

SATAKE CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07C 5/342 (2006.01); G01N 21/25 (2006.01); G01P 3/38 (2006.01); G01N 21/85 (2006.01);
U.S. Cl.
CPC ...
B07C 5/3425 (2013.01); G01N 21/251 (2013.01); G01P 3/38 (2013.01); G01N 2021/8592 (2013.01);
Abstract

An optical sorter includes a light source, a color sensor, a determination part configured to determine a foreign object and/or a defective product, a color shift amount calculation part configured to calculate, based on a color image acquired by the color sensor, an amount of a color shift that occurs due to the fact that at least two element groups out of an R element group, a G element group, and a B element group are spaced apart from each other in a transit direction of a sorting target, a speed calculation part configured to calculate a transit speed of the sorting target based on a separation distance between the at least two element groups in the transit direction, the color shift amount, and a scan time, which is a time required for the color sensor to scan the sorting target once, and a sorting device configured to perform a trajectory change operation for changing a trajectory of a specific sorting target determined based on a result of the determination by the determination part at a timing determined based on the transit speed calculated by the speed calculation part.


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