The invention provides a method and apparatus for determining the wavelength of a sample source of light, the apparatus having a reference light source of known wavelength, a collimator for collimating light from the sample source and from the reference source, a dispersing means for receiving and spatially...http://www.google.com.au/patents/US6683686?utm_source=gb-gplus-sharePatent US6683686 - Temporally resolved wavelength measurement method and apparatus
