en

Sparrow criterion

1

Terminological databases

Metroloogia terminibaas

ID 1142950 Last modified 17.05.2025
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Domain metrologymeasuring instrumentsmeasuring procedures
  • suurus, mis iseloomustab optilist külgeraldusvõimet, mis saadakse kahe punktallika eraldamisel, mille juures intensiivsuse jaotuse teine tuletis kaob kahe optiliselt kombatud punkti vahel
  • quantity characterizing the optical lateral resolution given by the separation of two point sources at which the second derivate of the intensity distribution vanishes between the two imaged points
Sparrowi kriteerium
Usage examples
  • Teoreetiliselt täiusliku, mittekoherentse optilise süsteemi puhul on optilise süsteemi Sparrow kriteerium 0,47 λ0/AN, mis on ligikaudu 0,77 osa Rayleighi kriteeriumist.
Sparrow criterion
Usage examples
  • For a theoretically perfect, incoherent optical system with filled objective pupil, the Sparrow criterion of the optical system is equal to 0,47 λ0/AN, approximately 0,77 times the Rayleigh criterion.

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