US PATENT SUBCLASS 250 / 559.38
.~.~.~ Determining range from detector

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}
559.29  DF  .~.~ Measuring position {9}
559.38.~.~.~ Determining range from detector

DEFINITION

Classification: 250/559.38

Determining range from detector:

(under subclass 559.19) Subject matter wherein the reference frame used to express the position of the material is centered at the photocell or optical system.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

4, for range finding optical systems with a photocell.