CONTROL SYSTEM FOR AN OCT IMAGING SYSTEM, ARRANGEMENT WITH AN OCT IMAGING SYSTEM AND METHOD FOR ADJUSTING AN OCT IMAGING SYSTEM

Abstract

The invention relates to a control system for an optical coherence tomography imaging system to be used with a microscopy system for viewing and/or imaging a subject (190, 192), the microscopy system comprising an objective (164) and a viewing lens system (170) including a relay lens (172), wherein the viewing lens system (170) is arranged at a subject’s side of the objective (164), the control system being configured to perform the following steps: controlling the optical coherence tomography imaging system to perform at least one radial scan of a surface (176) of the relay lens (172), determining, from data of the at least one radial scan at least one curve corresponding to a shape of the surface (176) of the relay lens (172), determining (520), from the at least one curve a lateral offset (178) between a center of the relay lens (172) and an origin of the optical coherence tomography imaging system, and adjusting the origin of the optical coherence tomography imaging system taking into account to the lateral offset (178), to an arrangement with an OCT imaging system and a method for adjusting an OCT imaging system.

Description

Claims

1. A control system for an optical coherence tomography imaging system to be used with a microscopy system for viewing and/or imaging a subject, the microscopy system comprising an objective and a viewing lens system including a relay lens, wherein the viewing lens system is arranged at a subject’s side of the objective, the control system being configured to perform the following steps: controlling the optical coherence tomography imaging system to perform at least one radial scan of a surface of the relay lens,determining, from data of the at least one radial scan, at least one curve corresponding to a shape of the surface of the relay lens,determining, from the at least one curve, a lateral offset between a center of the relay lens and an origin of the optical coherence tomography imaging system, andadjusting the origin of the optical coherence tomography imaging system taking into account to the lateral offset.

2. The control system of claim 1, wherein the least one radial scan comprises at least two different radial scans, and wherein the at least one curve comprises at least two different curves corresponding to the shape of the surface of the relay lens .

3. The control system of claim 1, wherein determining, from the at least one curve, the lateral offset comprises: determining an apex of the at least one curve, determining a lateral position of the apex, and determining the lateral offset from a difference of the lateral position of the apex and the origin of the optical coherence tomography imaging system.

4. The control system of claim 1, wherein determining, from the at least one curve,the lateral offset comprises: determining offset components in two different lateral directions with respect to imaging coordinates of the optical coherence tomography imaging system.

5. The control system of claim 1, the control system further being configured to perform the following steps: determining, from the at least one curve, an angular offset between a center axis of the relay lens and an optical axis of the microscopy system, andadjusting the optical coherence tomography imaging system taking into account to the angular offset.

6. The control system of claim 1, wherein the viewing lens system further includes a reduction lens, the reduction lens being arranged between the objective and the relay lens.

7. The control system of claim 1, wherein the subject includes or is a retina of an eye, and wherein the viewing lens system is or includes a retinal viewing lens system.

8. The control system of claim 1, wherein the viewing lens system is configured as an attachable and removable accessory.

9. An arrangement comprising an optical coherence tomography imaging system and a microscopy system for viewing and/or imaging a subject, the microscopy system comprising an objective and a viewing lens system including a relay lens, wherein the viewing lens system is arranged at the subject’s side of the objective, further comprising the control system of claim 1.

10. A method for adjusting an optical coherence tomography imaging system to be used with a microscopy system for viewing and/or imaging a subject, the microscopy system comprising an objective and a viewing lens system including a relay lens, wherein the viewing lens system is arranged at a subject’s side of the objective, comprising the following steps: performing at least one radial scan of a surface of the relay lens, by means of the optical coherence tomography imaging system,determining, from data of the at least one radial scan, at least one curve corresponding to a shape of the surface of the relay lens,determining, from the at least one curve, a lateral offset between a center of the relay lens and an origin of the optical coherence tomography imaging system, andadjusting the origin of the optical coherence tomography imaging system taking into account to the lateral offset.

11. The method of claim 10, wherein the viewing lens system is attached to the objective before performing the at least one radial scan.

12. The method of claim 10, further comprising the following steps: determining, from the at least one curve, an angular offset between a center axis of the relay lens and an optical axis of the microscopy system, andadjusting the optical coherence tomography imaging system taking into account to the angular offset.

13. The method of any one of claims 10, wherein the viewing lens systemfurther includes a reduction lens, the reduction lens to be arranged between the objective and the relay lens.

14. The method of any one of claims 10, wherein the subject includes a retina of an eye, and wherein the viewing lens system is or includes a retinal viewing lens system.

15. A non-transient computer readable storage medium comprising a computer program including a program code for performing the method of claim 10, when the computer program is run on a processor or on the control systemof claim 1.