| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermography device of a simple structure which does not produce a parallax between an infrared image and a visible image. SOLUTION: The thermography device wherein a camera 2 sensitive to visible light wavelengths and a camera 1 sensitive to infrared light wavelengths are arranged crossing their optical axes C1 and C2, includes a moving chopper 3 having a mirror plane 12 on its one side on the side of an object O to be measured and having a light transmission hole 5, on the straight optical path C1 leading toward the object O from one camera 1 out of the two cameras. The moving chopper is so arranged that an optical path for reflected light by the mirror plane 12 of the chopper coincides with the optical axis C2 of the other camera 2 of the two cameras. COPYRIGHT: (C)2008,JPO&INPIT
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