ATIS Telecom Glossary
Tuesday, September 23, 2014

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conservation of radiance
A basic principle of optics, that no passive optical system can increase the quantity L/n2, where L is the radiance of a beam and n is the local refractive index. Note: "Conservation of radiance" was formerly called "conservation of brightness" or the "brightness theorem."

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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