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Journal: Journal of Experimental Biology
J Exp Biol (2016) 219 (6): 772–778.
Published: 15 March 2016
... it; it does not know what it is looking at. So setting a spectrometer to measure radiance or irradiance depends on what are called the ‘sampling optics’, in most cases something screwed onto the end of the fiber optic cable that determines the field of view. If the sampling optic is a Gershun tube ( Fig. 5...