Title:
INSPECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/090827
Kind Code:
A1
Abstract:
This inspection device (1) comprises: an illumination unit (21) that, in relation to a light-transmitting object (60) under inspection that includes one surface (60S1) bent so as to protrude and another surface (60S2) opposing the one surface (60S1) and bent so as to be recessed, is disposed on the side of the other surface (60S2) and emits light L1 onto the other surface (60S2); an imaging unit (30) that, in relation to the object (60) under inspection, is disposed on the side of the one surface (60S1) and images light (L1) from the illumination unit (21) that has passed through the object (60) under inspection; and an inspection unit (40) that determines whether there is a defect on the one surface (60S1) and the other surface (60S2) of the object (60) under inspection on the basis of an image captured by the imaging unit (30).
Inventors:
KAMEOKA YASUHIRO (JP)
Application Number:
PCT/JP2020/041175
Publication Date:
May 14, 2021
Filing Date:
November 04, 2020
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
G01N21/958; G01N21/896
Domestic Patent References:
| WO2018088423A1 | 2018-05-17 |
Foreign References:
| US20100051834A1 | 2010-03-04 | |||
| JP2008249568A | 2008-10-16 | |||
| JP2007040783A | 2007-02-15 | |||
| KR20180083135A | 2018-07-20 | |||
| JP2009537022A | 2009-10-22 | |||
| JP2013040915A | 2013-02-28 | |||
| JP2014025884A | 2014-02-06 | |||
| JP2018146239A | 2018-09-20 | |||
| JP2018112478A | 2018-07-19 |
Attorney, Agent or Firm:
MORIMURA Yasuo (JP)
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