Optical computed tomography equipment having image inverting optical device

摘要

Optical computed tomography equipment adapted to speed up the scanning of a subject under test using irradiated light so as to shorten the measuring time involved. The light from a light source (15-1, 15-2) is guided over an optical fiber thread (12-5c) to an image inverting optical system comprising a dovetail prism (13-1) and two lenses (14-2, 14-1). Past the optical system, the light enters one of the threads making up an optical fiber (12-1). As the dovetail prism (13-1) is rotated around its optical axis, the light from the optical fiber thread (12-5c) consecutively enters different threads of the optical fiber (12-1) , causing the irradiation position to scan a subject (11) of the test. The incident light, having passed through the subject (11) in various directions, goes through the respective threads of the optical fiber (12- 1) to reach the image inverting optical device. From there, the light enters the corresponding threads of an optical fiber (12-4) and is detected by photo detectors (16-2a, 16-2b, etc.).