Scanner

Not applicable. A scanner for optical coherence tomography for linear scanning of an object with electromagnetic radiation, in which the scanning direction runs transversely of the direction of propagation of the electromagnetic radiation, includes a deflecting element rotatable around a rotation axis that deflects the electromagnetic radiation, incident along a direction of incidence, toward the object and, by its rotation, effects the linear scanning of the object. A beam forming optics is arranged on the object side of the rotatable deflecting element and concentrates electromagnetic radiation coming from the deflecting element. The rotation axis of the rotary deflecting element is parallel to the direction of incidence of the electromagnetic radiation.