Title:
OPTICAL SORTING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/106964
Kind Code:
A1
Abstract:
This optical sorting machine is provided with a first optical sensor including an R element, a G element, and a B element. The R element, the G element, and the B element each have a spectral sensitivity peak in the visible wavelength region. At least two elements among the R element, the G element, and the B element have a non-zero spectral sensitivity in a prescribed wavelength region within the invisible wavelength regions. The optical sorting machine is additionally provided with: a first light source which emits first light having a wavelength in a prescribed wavelength region toward an object being selected; an integrating unit which integrates at least a portion of a signal acquired by means of at two elements, or at least a portion of a gradation value corresponding to said signal, when the first light is emitted by the first light source; and a first assessing unit which assesses a foreign body and/or a defective product on the basis of the signal or the gradation value integrated by the integrating unit.
More Like This:
Inventors:
NISHIDA TAKUYA (JP)
Application Number:
PCT/JP2020/043910
Publication Date:
June 03, 2021
Filing Date:
November 25, 2020
Export Citation:
Assignee:
SATAKE ENG CO LTD (JP)
International Classes:
B07C5/342; G01N21/85
Domestic Patent References:
| WO2016080003A1 | 2016-05-26 |
Foreign References:
| JP2014157119A | 2014-08-28 | |||
| JP2006109120A | 2006-04-20 | |||
| JP2011507353A | 2011-03-03 | |||
| JP2019103004A | 2019-06-24 | |||
| JPH11298800A | 1999-10-29 | |||
| JP2007333464A | 2007-12-27 |
Attorney, Agent or Firm:
YUCHI INTERNATIONAL PATENT FIRM (JP)
Download PDF: