| 摘要 |
PROBLEM TO BE SOLVED: To reduce size of entire apparatus and to acquire a picture data comprising standardization element. SOLUTION: A support frame 5 comprises, outside a camera body 7 which photographs a crack of a surface 3 to be examined, a plurality of measurement beam emitters 9 and 10 which emit two or more parallel beams a-1 which is a standardization element, and a plurality of measurement beam emitters 11 and 12 which emit two or more tilted beams b-1 provided with a prescribed outward angle relative to an optical axis line Y penetrating the center of a camera lens 37. COPYRIGHT: (C)2003,JPO
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