Optics: measuring and testing – By light interference – Having wavefront division
Reexamination Certificate
2011-01-04
2011-01-04
Toatley, Gregory J (Department: 2877)
Optics: measuring and testing
By light interference
Having wavefront division
Reexamination Certificate
active
07864340
ABSTRACT:
The method comprises positioning a diffraction grating with a two-dimensional meshing on the path of the beam to be analyzed and processing at least two interferograms of at least two different colors, each interferogram being obtained in a plane from two sub-beams with different diffraction orders. The invention can be used to analyze and correct divided wavefronts.
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