US PATENT SUBCLASS 250 / 227.3
.~.~.~ With variable orientation of light conductor relative to viewed object (e.g., goniometer)

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

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
216  DF  .~ Optical or pre-photocell system {11}
227.11  DF  .~.~ Light conductor {14}
227.3.~.~.~ With variable orientation of light conductor relative to viewed object (e.g., goniometer)

DEFINITION

Classification: 250/227.3

With variable orientation of light conductor relative to viewed object (e.g., goniometer):

(under subclass 227.11) Subject matter in which means are provided to vary the angular relationship of the light source or photodetector with respect to the surface of the object under illumination and photodetection.

(1) Note. Devices with means to vary the angular relationship between light source, object surface and photodetector are conventionally known as goniometers.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

340, measuring particle light scattering with photocell detection at variable angle to the light beam.