US PATENT SUBCLASS 356 / 328
.~.~ Having diffraction grating means

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

300  DF  BY DISPERSED LIGHT SPECTROSCOPY {10}
326  DF  .~ Utilizing a spectrometer {3}
328.~.~ Having diffraction grating means {1}
329  DF  .~.~.~> Including servo slit adjustment means

DEFINITION

Classification: 356/328

Having diffraction grating means:

(under subclass 326) Subject matter wherein the dispersive element is a diffraction grating.