Method and apparatus for determining position of an eye
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United States of America Patent
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Apr 24, 2001
Grant Date -
N/A
app pub date -
Feb 10, 2000
filing date -
Feb 10, 2000
priority date (Note) -
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Abstract
An embodiment of the present invention is an apparatus to determine position of an eye that includes: (a) two off-axis, radiation emitter-photodetector pairs, wherein an emitter of a pair is disposed to transmit radiation toward the eye and a photodetector of the pair is disposed to receive radiation reflected by the eye; and (b) a controller that analyzes output from the photodetectors to determine the position of the eye.
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