LENSLET ARRAY FOR RETINAL OXIMETRY

• US 20110261321A1
• Filed: 07/07/2011
• Published: 10/27/2011
• Est. Priority Date: 10/06/2008
• Status: Active Grant

• Current Assignee: Catholic University of America (Catholic University)
• Original Assignee: Catholic University of America (Catholic University)
• Inventors: RAMELLA-ROMAN, Jessica C., Mathews, Scott A., Mirotznik, Mark
• Granted Patent: US 8,308,299 B2
• Time in Patent Office: Days
• US Class Current: 351/206
• CPC Class Codes: A61B 5/14555 specially adapted for the eye fundus
• CPC Class Codes: G02B 27/28 for polarising used in stereoscopes G02B30/25
• CPC Class Codes: G02B 3/0056 arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085
• CPC Class Codes: G02B 5/201 in the form of arrays

Abstract

The multi-aperture system of the present invention provides a retinal oximetry apparatus for determining the level of oxygen saturation in retinal vessels using a lenslet array comprising at least seven lenses for the simultaneous measurement of reflected light with at least three wavelengths and at least four polarization states. The multi-aperture system of the present invention further provides an apparatus for determining the level of oxygen saturation in retinal vessels using a lenslet array comprising at least ten lenses for the simultaneous measurement of reflected light with at least three wavelengths for oxygen measurement, at least three wavelengths for melanin content, and at least four polarization states. Methods of operating the same are also provided.

Claims

1. (canceled)

15. A method, comprising the following steps:

(a) placing an eye of a subject at the entrance pupil of an optical device; and

(b) detecting a plurality of two-dimensional images of light reflected by the retina of the eye of the subject using the multi-aperture system of claim 1 attached to the exit pupil of the optical device.

16. The method of claim 15, wherein the step (b) of detecting a plurality of two-dimensional images is carried out by using a detection system.

17. The method of claim 15, wherein the optical device is a fundus ophthalmoscope.

2. (canceled)

3. (canceled)

4. (canceled)

5. (canceled)

6. (canceled)

7. (canceled)

8. (canceled)

9. (canceled)

10. (canceled)

11. (canceled)

12. (canceled)

13. (canceled)

14. (canceled)

18. (canceled)

19. (canceled)

20. (canceled)

21. (canceled)

22. (canceled)

23. (canceled)

24. (canceled)

25. (canceled)

26. (canceled)

27. (canceled)

28. (canceled)

29. (canceled)

30. (canceled)

31. (canceled)

32. (canceled)

33. (canceled)