Radiance describes the intensity of optical radiation from an irradiated or emitting surface in a particular direction measured with a specified solid angle. The unit of radiance is W/ (m2.sr). Detector heads with a defined angle of view are used to measure radiance.

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More information about radiance measurements can be found under:

 Products section: Radiance Detectors
                           SRT-M37-nn Front Lens Assemblies for RW-37 typ Detector
                           Possible Optometers: P-9710

 Tutorials: click Basic Radiometric Quantities or Measurement of Radiance  

 Download: Light_Detectors.pdf (1.2 MB)