Patent ID: 7633623

Claim:
An optical tomography system for obtaining a tomographic image of an object to be measured, the system comprising: a light source unit which emits light, a light dividing means for dividing light emitted from the light source unit into measuring light and reference light, an optical path length adjusting portion which adjusts an optical path length of the measuring light or the reference light which has been divided by the light dividing means, an optical fiber which guides the measuring light or the reference light to the optical path length adjusting portion, a mixing means for mixing light reflected from the object when the measuring light is projected onto the object and the reference light, an interference light detecting means for detecting interference light of the reflected light and the reference light which have been mixed by the mixing means, and a tomographic image obtaining means for obtaining a tomographic image of the object by carrying out a frequency analysis on the interference light detected by the interference light detecting means, wherein the optical path length adjusting portion comprises: a reflecting mirror which reflects the measuring light or the reference light radiated from the optical fiber, a first lens which is disposed between the reflecting mirror and the optical fiber to make parallel the measuring light or the reference light radiated from the core of the optical fiber and at the same time, to collect the measuring light or the reference light reflected by the reflecting mirror on the core of the optical fiber, and a second lens which focuses the measuring light or the reference light made parallel by the first lens on the reflecting mirror and at the same time, makes parallel the measuring light or the reference light reflected by the reflecting mirror.