US PATENT SUBCLASS 356 / 370
.~ With light attenuation

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

364  DF  BY POLARIZED LIGHT EXAMINATION {4}
370.~ With light attenuation

DEFINITION

Classification: 356/370

With light attenuation:

(under subclass 364) Subject matter wherein the light to be tested or the light transmitted through or reflected from a sample or standard is reduced in intensity by means of polarizers and analyzers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

213+, for photometers generally.

402+, for shade or color measurements generally.

432+, for light absorption measuring generally.