CPC G02B 27/0068 (2013.01) [G02B 27/0988 (2013.01); G02B 27/1066 (2013.01); G02B 27/64 (2013.01)] | 10 Claims |
1. A wavefront calibration method for a wavefront tester of one of a lens and an optical system under test, said method comprising:
(a) measuring an air wavefront of the wavefront tester without the lens or the optical system under test;
(b) measuring a sample wavefront to generate an actual wedge angle and refractive index of said sample based on said air wavefront;
(c) calculating a measured wedge angle and refractive index based on the actual wedge angle and refractive index of said sample; and
(d) linear fitting between said actual wedge angle and refractive index and said measured wedge angle and refractive index to produce an actual magnification of said sample.
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