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R band

(R)
(band of visible light around 6500 angstroms)

The term R band is often used for a photometric system's red band, a typical example being centered round 658nm with a full width at half maximum of 138nm. R may indicate the band or a filter adhering to the specification.

The letter is also used to indicate the magnitude of the signal observed through the filter, e.g., citing "R = 1.5".


(EMR,infrared,near infrared,band,red,photometry)
http://en.wikipedia.org/wiki/Photometric_system
WaveLFreqPhoton
Energy
  
658nm456THz1.9eVR band

Referenced by:
dropout
infrared (IR)
passband
photometric system
UBV photometric system

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