US PATENT SUBCLASS 356 / 338
.~ With photocell detection

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

337  DF  BY PARTICLE LIGHT SCATTERING {1}
338.~ With photocell detection {5}
339  DF  .~.~> At right angles to the light beam (e.g., nephelometer)
340  DF  .~.~> At variable angle to the light beam
341  DF  .~.~> For light comparison means
342  DF  .~.~> Of back-scattered light
343  DF  .~.~> Using plural photocells

DEFINITION

Classification: 356/338

With photocell detection:

(under subclass 337) Subject matter which includes photosensitive means activated by the scattered light received.