Patent ID: 11883854
Assignee: SATAKE CORPORATION
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 5:
6. The optical sorter according to claim 1, wherein the determination part is configured to determine both the foreign object and the defective product,
the color shift amount calculation part is configured to:
extract, from the color image, a first region which contains a foreign object image region that is an image region indicating the foreign object and does not contain a non-foreign object image region that is an image region indicating the sorting target other than the foreign object, and a second region which does not contain the foreign object image region and contains the non-foreign object image region; and
calculate each of a color shift amount of the first region and a color shift amount of the second region,

the speed calculation part is configured to calculate each of a transit speed of the foreign object and a transit speed of the sorting target other than the foreign object as the transit speed of the sorting target,
the specific sorting target includes the foreign object and the defective product, and
the sorting device is configured to perform the trajectory change operation with respect to the foreign object at a timing determined based on the transit speed of the foreign object and perform the trajectory change operation with respect to the defective product at a timing determined based on the transit speed of the sorting target other than the foreign object.