Aberrometer for Measuring Parameters of a Lens Using Multiple Point Sources of Light
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Feb 1, 2013
filing date -
Feb 7, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for measuring a lens, comprising apparatus for maintaining the lens at a location, at least a first point source, a second point source and a third point source, at least a first beam splitter, and a second beam splitter, and a wavefront sensor configured and arranged to receive a wavefront of light from the first source, a wavefront of light from the second source, and a wavefront of light from the third source after the light from each source has passed through the lens. The point sources and beam splitters are arranged such that the first source has a first object distance relative to the location, the second source has a second object distance relative to the location, the third source has a third object distance relative to the location, the first object distance, the second object distance, and the third object distance being different than one another.
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