(under subclass 345) Subject matter wherein the interference phenomenon is used to analyze the spectral characteristics of light.
(1) Note. See Search Notes under subclasses 300+ above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300+, for dispersed light spectroscopic measuring and testing.
402+, for filter photometers which analyze the wavelength and intensity of emitted or absorbed light by materials as a result of reflective or transmissive tests, where filters rather than dispersive mediums are used to isolate wavelengths of light.
