G
PHYSICS
G01
MEASURING; TESTING
G01J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3/00
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
G01J3/28
Investigating the spectrum
G01J3/45
Interferometric spectrometry
G01J3/453
by correlation of the amplitudes
G01J3/4535
Devices with moving mirror