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The accuracy of any spectroradiometric measurement can only be as good as that of the standard source used to calibrate the system. We manufacture a range of sources calibrated in our own laboratory using NPL calibrated versions of the same product. The following table is a representative but not complete list of devices available.
Product Code
Standard of...
Wavelength range
Units
Luminous parameter
Spectral Radiance
380-800nm
mW/sr.m2.nm)
Luminance (cd/m2)
SRS8/RI
Spectral Radiant Intensity
380-2500nm
mW/(sr.nm)
Luminous intensity
CL2
Spectral Irradiance
250-3000nm
mW/(m2.nm)
Illuminance
CL3
Spectral Irradiance
200-400nm
mW/(m2.nm)
n/a
CL6
Spectral Irradiance
200-3000nm
mW/(m2.nm)
Illuminance
CL7
Spectral Irradiance
200-400nm
mW/(m2.nm)
n/a
CL-Hg
Wavelength, spectral lines
250-600m
nm
n/a
TSRF
Total Spectral Radiant Flux
300-800nm
mW/nm
Total luminous flux
(lumens)
Si-CAL
Detector Responsivity
200-1100nm
A/W
n/a
Ge-CAL
Detector Responsivity
900-1800nm
A/W
n/a
