Wavefront sensor for objective measurement of an optical system and associated methods
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United States of America Patent
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Jun 17, 2003
Grant Date -
Jan 10, 2002
app pub date -
Apr 19, 2001
filing date -
Apr 19, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wavefront sensor includes an afocal relay stage for magnifying an incoming wavefront reflected from a source plane. In an exemplary application, a retina of an eye reflects an impinging light beam thereon to form a series of wavefronts. A lenslet array is positioned at a reference plane of the afocal relay stage to receive the magnified wavefront. Further downstream is positioned a means for imaging and demagnifying a focal plane image of the lenslet array at a final image plane. This demagnified image then serves as input to an analyzer, such as a charge-coupled-device (CCD) camera.
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