US PATENT SUBCLASS 250 / 559.09
.~.~ With polarization

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
559.01  DF  .~ With circuit for evaluating a web, strand, strip, or sheet {13}
559.09.~.~ With polarization

DEFINITION

Classification: 250/559.09

With polarization:

(under subclass 559.01) Subject matter having polarizing means in the optical path between a light source and the photocell.

SEE OR SEARCH THIS CLASS, SUBCLASS:

225, for polarizing means in a photocell circuit with an optical or pre-photocell system.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

364+, for polarized light examination.

359, Optics: Systems (Including Communication) and Elements, 483+, for polarizers, per se.