Patent ID: 8526006

Claim:
A system for optical coherence tomography comprising: an interferometer for emitting light with which a specimen is irradiated, the interferometer comprising a beam splitter and at least one reflector the optical distance of which from the beam splitter is changeable by a control unit, a specimen objective by means of which light emitted by the interferometer is focussed in a focus lying within the specimen, and a detector for collecting light which is reflected by the specimen, wherein during a change of the optical distance between the reflector and the beam splitter by the control unit the light respectively reflected at a number of different depths of the specimen is collected by the detector, wherein during the collection of the light respectively reflected at the different depths of the specimen the imaging properties of the specimen objective are changed by the control unit such that the focus comes within the range of the respective depth of the specimen, wherein the specimen objective comprises one or a number of moveably arranged lenses the position of which is changed synchronously with the change of the optical distance between the reflector and the the beam splitter by the control unit with the focus coming within the range of the respective depth of the specimen, and wherein the change by the control unit of the optical distance between the reflector and the beam splitter takes place at a first speed, and the position of the one or number of moveably arranged lenses is changed at a second speed which is lower than the first speed of the change of the optical distance between the reflector and the beam splitter.