Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2005-04-05
2005-04-05
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
C356S492000
Reexamination Certificate
active
06876451
ABSTRACT:
A multi-axis interferometer includes a multiplexer portion and a beam splitter portion integrated into the same optically transmissive monolith. The multiplexer portion is configured to split an input beam into a corresponding plurality of intermediate beams, each of which is directed toward the beam splitter portion through a corresponding output port of the multiplexer portion. The beam splitter portion is configured to separate the intermediate beam into a measurement component and a reference component.
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Fish & Richard P.C.
Lyons Michael A.
Toatley , Jr. Gregory J.
Zygo Corporation
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