Patent ID: 7593626

Claim:
An optical tomography system for obtaining a tomographic image of an object to be measured comprising a light source unit which emits light, a light dividing means which divides light emitted from the light source unit into measuring light and reference light, an optical path length adjusting means which adjusts an optical path length of the measuring light or the reference light which has been divided by the light dividing means, a probe which guides the measuring light to the object, a light combining means which combines the reflected light from the object when the measuring light is projected onto the object and the reference light, an interference light detecting means which detects interference light of the reflected light and the reference light which have been combined by the light combining means, and a tomographic image obtaining means which obtains a tomographic image of the object on the basis of the interference light detected by the interference light detecting means, the probe being provided with a distance measuring means for measuring the distance from the probe to the object, and the optical path length adjusting means adjusting the optical path length of the measuring light or the reference light by the use of the distance to the object measured by the distance measuring means to adjust the tomographic image obtainment initiating position from which the tomographic image is started.