US PATENT SUBCLASS 356 / 353
.~ With shearing

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

345  DF  BY LIGHT INTERFERENCE (E.G., INTERFEROMETERS) {11}
353.~ With shearing

DEFINITION

Classification: 356/353

With shearing:

(under subclass 345) Subject matter wherein the beam to be tested is combined with itself after the introduction of either a radical or lateral shear.