Patent ID: 9033498
Filing Date: 2015-05-19
Classification: A61B,G01B

Abstract:
1. A photographing apparatus for photographing a tomographic image of an object based on combined light of return light from the object irradiated with measuring light and reference light corresponding to the measuring light, the photographing apparatus comprising: a moving unit configured to move a coherence gate corresponding to a difference between an optical path length of the measuring light and an optical path length of the reference light; a moving direction acquiring unit configured to acquire a moving direction of the coherence gate based on first combined light and second combined light, which are respectively acquired at a first position of the coherence gate and a second position at which the coherence gate is placed after being moved from the first position toward the object by the moving unit; and a control unit configured to control the moving unit so as to move the coherence gate in the acquired movement direction from the second position.