OPTICAL TOMOGRAPHIC IMAGE ACQUISITION DEVICE

PROBLEM TO BE SOLVED: To provide an optical tomographic image acquisition device for dentistry or the like which can display an accurate tomographic image.SOLUTION: The optical tomographic image acquisition device includes a tomographic image operation section 23 for performing arithmetic processing of interference light generated by an interference section 21 to generate tomographic image information on a measuring object, and outputting the tomographic image information to a display section 17. The tomographic image information operated by the tomographic image operation section 23 performs arithmetic processing of information that is two or more times as much as a display distance T in a depth direction at the display section 17 forward from a display start position S of the display section 17 along an optical path, and a light transmissive cover body 38 is provided at a position that is one time or more and three times or less as far as the display distance T backward from the display start position S of the display section 17 along the optical path of a probe 1.