Back to results
US 2010/0149490 A1Published application
Compact adaptive optic- optical coherence tomography system
AssigneeLawrence Livermore National Security, LLC
InventorsScot S. Olivier, Diana C. Chen, Steven M. Jones, Sean M. McNary
Life of this patent
Estimating the term…
Abstract
Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes.
Claims24
An apparatus, comprising:
- a light source for providing an input beam;
- means for splitting said input beam into a reference beam and an input sample beam;
- a Badal optometer configured for adjusting the focus of said input sample beam into the eye of a patient, wherein a portion of said input sample beam reflected from said eye will produce an output sample beam having an optical axis;
- a pair of cylindrical lenses positioned to rotate on said optical axis and configured to compensate for at least a portion of astigmatism in said output sample beam to produce an astigmatism compensated output sample beam;
- a reference beam path configured to produce an output reference beam that has traveled the same distance as said input sample beam combined with said astigmatism compensated output sample beam;
- and
- means for combining said output reference beam and said astigmatism compensated output sample beam to produce a combined output beam.
4 more elements
An apparatus, comprising
- a light source for providing an input beam;
- means for splitting said input beam into a reference beam and an input sample beam;
- means for producing an output sample beam comprising a retinal image from an eye;
- at least one of a means for (i) adjusting the focus of said input sample beam into said eye, wherein said eye will reflect a portion of said input sample beam to produce an output sample beam or (ii) compensating for at least a portion of astigmatism in said retinal image from said eye in said output sample beam;
- a reference beam path configured to produce an output reference beam that has traveled the same distance as said input sample beam combined with said output sample beam;
- and
- means for combining said output reference beam and said output sample beam to produce a combined output beam.
4 more elements
A method, comprising:
- providing an input beam;
- splitting said input beam into a reference beam and an input sample beam;
- adjusting, with a Badal optometer, the focus of said input sample beam into the eye of a patient, wherein a portion of said input sample beam reflected from said eye will produce an output sample beam having an optical axis;
- compensating, with a pair of cylindrical lenses positioned to rotate on said optical axis, for at least a portion of astigmatism in said output sample beam to produce an astigmatism compensated output sample beam;
- producing an output reference beam that has traveled the same distance as said input sample beam combined with said astigmatism compensated output sample beam;
- and
- combining said output reference beam and said astigmatism compensated output sample beam to produce a combined output beam.
4 more elements
A method, comprising
- providing an input beam;
- splitting said input beam into a reference beam and an input sample beam;
- producing an output sample beam comprising a retinal image from an eye;
- at least one of (i) adjusting the focus of said input sample beam into said eye, wherein said eye will reflect a portion of said input sample beam to produce an output sample beam or (ii) compensating for at least a portion of astigmatism in said retinal image from said eye in said output sample beam to produce an astigmatism compensated output sample beam;
- and
- producing an output reference beam that has traveled the same distance as said input sample beam combined with said output sample beam;
- and
- combining said output reference beam and said output sample beam to produce a combined output beam.
5 more elements
Dependencies are inferred from the claim text.