Claims
- 1. A system for measuring errors in an eye comprising:
a projecting optical system which delivers light onto a retina of the eye; a pre-correction system which compensates a light beam to be injected into the eye for aberrations in the eye, the pre-correction system being positioned in between the projecting optical system and the eye; an imaging system which collects light scattered by the retina; and a detector receiving light returned by the retina from the imaging system.
- 2. The system of claim 1, wherein the detector is a Shack-Hartmann wavefront sensor.
- 3. The system of claim 1, wherein the detector is a shearing interferometer.
- 4. The system of claim 1, wherein the detector is a Moiré deflectometer.
- 5. The system of claim 1, wherein the pre-correction system comprises a telescope having at least one movable lens.
- 6. The system of claim 1, wherein the pre-correction system comprises fixed lenses inserted at an intermediate image plane.
- 7. The system of claim 1, wherein the pre-correction system comprises adaptive optical elements.
- 8. The system of claim 1, wherein the pre-correction system corrects for focus errors in the eye.
- 9. The system of claim 1, wherein the pre-correction system corrects for focus and astigmatism.
- 10. The system of claim 1, further comprising an aperture that limits the angular dynamic range of the system.
- 11. The system of claim 1, further comprising a polarizing beam splitter between the eye and the wavefront sensor.
- 12. The system of claim 1, further comprising an aligner that determines an appropriate eye alignment of the system.
- 13. The system of claim 1, wherein the projecting optical system provides light to the eye at an angle to a central axis of the eye.
- 14. The system of claim 1, further comprising an additional optical system between the detector and the eye.
- 15. The system of claim 1, further comprising a power monitor which monitors power of the light beam being injected in the eye.
- 16. The system of claim 1, further comprising an eye position detection system including a target projected on the eye, a position detector sensing the eye, and an adjustment system which adjusts a position of the system relative to the eye until the eye is in focus on the detector.
- 17. The system of claim 1, wherein the pre-correction system is a cylindrical telescope.
- 18. The system of claims 1, wherein components used in the pre-correction system also are used in the imaging system.
- 19. The system of claim 1, wherein the pre-correction system includes a feedback loop which determines an appropriate pre-correction to be supplied by the pre-correction system.
- 20. The system of claim 19, wherein said feedback loop includes a detector receiving light returned from the retina, a processor comparing detected light with a desired feature of the light and adjusting at least one parameter of the pre-correction system in accordance with the comparison.
- 21. The system of claim 20, wherein said feedback loop further includes a return optical system for gathering the light from the retina.
- 22. The system of claim 21, wherein said return optical system includes said pre-correction system.
- 23. The system of claim 20, wherein said desired feature is a minimized spot size on the retina.
- 24. The system of claim 5, wherein said telescope is arranged so that a fixed lens of the telescope is one focal length away from the eye.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 60/182,088 filed on Feb. 11, 2000, the entire contents of which are hereby incorporated by reference for all purposes.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60182088 |
Feb 2000 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09692483 |
Oct 2000 |
US |
Child |
10419072 |
Apr 2003 |
US |