US 12,085,514 B2
Inspection device and coating apparatus equipped with the same
Masahiro Ooe, Hinocho (JP); and Shuei Seno, Hinocho (JP)
Assigned to Daifuku Co., Ltd., Osaka (JP)
Filed by Daifuku Co., Ltd., Osaka (JP)
Filed on Jun. 30, 2022, as Appl. No. 17/854,069.
Claims priority of application No. 2021-110027 (JP), filed on Jul. 1, 2021.
Prior Publication US 2023/0003666 A1, Jan. 5, 2023
Int. Cl. G01N 21/95 (2006.01); G01N 21/88 (2006.01)
CPC G01N 21/95 (2013.01) [G01N 2021/8812 (2013.01); G01N 2021/8887 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An inspection device for inspecting a state of a coating agent applied to a target surface having an uneven portion, the inspection device comprising:
an image capture device configured to capture an image of a predetermined inspection target region of the target surface; and
an illumination device configured to emit light capturable by the image capture device, toward the inspection target region,
wherein the illumination device comprises:
a first light source configured to emit diffuse light toward an entirety of the inspection target region; and
a second light source configured to emit direct light toward a shadow that is cast by the uneven portion due to emission of the diffuse light by the first light source.