MONOCHROMATOR COMPRISINGVARIABLE EAVELENGTH SELECTOR IN COMBINATION WITH TUNABLE INTERFERENCE FILTER

摘要

A system for spectrally filtering light comprising a variable wavelength selector (12,22) for selecting a wavelength from a light source (4, 6); and a tunable interference f liter (60) for filtering light from the variable wavelength selector, wherein the interference filter is synchronously tunable to the output of the variable wavelength selector.