| 摘要 |
<p>The present invention allows a device to be smaller and improves selection accuracy by forming read lines in an inspection region as straight lines. An imaging device (12) inspects for defects and contamination of foreign bodies while continuously transporting a material. The imaging device (12) comprises an imaging optical system (32) that reflects light from an inspection region (K) by way of a plurality of light reflecting bodies (28, 29, 30, 31), and imaging elements (33, 34) that forms an optical image of the material derived by the imaging optical system (32). At least a pair of light reflecting bodies (28, 30) of the plurality of light reflecting bodies (28, 29, 30, 31) of the imaging optical system (32) is formed to have a concave face.</p> |
