Reference wavelength light generating apparatus

Details Reference wavelength light generating apparatus Reference wavelength light generating apparatus

G - Physics

02

B

G02B 27/00 (2006.01) G01J 3/10 (2006.01) G01J 3/28 (2006.01) G01N 21/27 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2345167

A reference wavelength light generating apparatus is disclosed in which light emitted by a light source is split into two beams by a beam splitter. One of the two beams is extracted as a measuring beam. The other beam is extracted as reference wavelength light after passage through a collimator and a band-stop filter and after being reflected back toward and through the beam splitter.

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