US PATENT SUBCLASS 356 / 352
.~ With partially reflecting plates in series (e.g., Fabry-Perot type)

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

345  DF  BY LIGHT INTERFERENCE (E.G., INTERFEROMETERS) {11}
352.~ With partially reflecting plates in series (e.g., Fabry-Perot type)

DEFINITION

Classification: 356/352

With partially reflecting plates in series (e.g., Fabry-Perot type):

(under subclass 345) Subject matter wherein the beams to be interfered are created by at least two surface in optical alignment, at least one of which is partially transmissive.