| CPC G02B 27/0172 (2013.01) [G01B 9/02004 (2013.01); G01B 9/02007 (2013.01); G01S 7/4915 (2013.01); G01S 17/34 (2020.01); G06T 19/006 (2013.01)] | 15 Claims |
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1. An eye accommodation distance determining device comprising:
an interferometer configured to:
generate a plurality of frequency modulated laser beams in different directions, and
generate a plurality of interferometric signals using laser beams reflected from eye reflecting surfaces among the plurality of frequency modulated laser beams;
a signal processer configured to generate a signal spectrum using each of the plurality of interferometric signals;
a distance determiner configured to:
analyze the signal spectrum, and
determine distances to the eye reflecting surfaces for each of the plurality of frequency modulated laser beams;
a point coordinates determiner configured to determine coordinates of points on each of the eye reflecting surfaces for each of the plurality of frequency modulated laser beams based on the determined distances to the eye reflecting surfaces and laser beam direction information;
a reconstructor configured to generate an eye inner structure model based on the determined coordinates of points on the eye reflecting surfaces; and
an eye accommodation distance determiner configured to determine, based on the eye inner structure model, an eye accommodation distance.
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