FIELD: medicine.
SUBSTANCE: invention refers to medical equipment, namely to optical coherence tomography scanners. The scanner comprises a scanning unit, a second lens, an optical path branching unit, a focusing lens arranged between the above branching unit and the above scanning unit on the optical path of measuring light for adjusting a coupled relation between the above eye ground and the above light source. The scanning unit is arranged in a position coupled with an anterior eye segment on the optical path of measuring light, and scans the measuring light on the eye ground. The second lens is arranged between the above scanning unit and the above first lens of the optical path of measuring light. The optical path branching unit is arranged between the first lens and the second lens and branches out the measuring light on the optical path of eye monitoring. The branching unit splits the light emitted from the light source on the measuring light and reference light. The second lens and the above scanning unit are arranged so that to generate a set of optical beams received by the above scanning module scanning the measuring light between the above first lens and the above second lens, almost in parallel to each other.
EFFECT: invention enables reducing the variations of polarisation state.
9 cl, 6 dwg
