Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2008-04-22
2008-04-22
Lyons, Michael A. (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
Reexamination Certificate
active
07362447
ABSTRACT:
An interferometer can achieve a high dynamic range for measurements along vertical and horizontal directions using a first measurement channel providing a high dynamic range measurement of a path including components respectively parallel and perpendicular to the optics-object separation and a second measurement channel providing a high dynamic range measurement with just a perpendicular component. Further, using the same techniques at multiple locations around permits a high dynamic range for measurements of the degrees of freedom of an object.
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Agilent Technologie,s Inc.
Lyons Michael A.
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