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Technical Specifications for LED Measurements
Spectrometer Model UV - VIS VIS - NIR
Spectral range 250 – 830 nm 380 – 950 nm
Spectral resolution 2.7 nm 2.7 nm
Stray light (for LEDs) *1 5·10E-4 5·10E-4
Sensitivity range*2
Luminous intensity (I
LED-B
) 20 μcd – 5 cd
Luminous flux (ISP 75) 65 μlm – 15 lm
Measurement accuracy*3
Luminous intensity +/- 7 %
Luminous flux +/- 7 %
Dominant wavelength +/- 1 nm
Chromaticity (x,y) +/- 0.005
LED40-400 Mini-Goniophotometer
Angular range in theta axis +/- 90°
Angular resolution 0.06°
Angular accuracy +/- 5 %
Interface USB
LED-720 Current source
Current range 0 – 48 mA
Interface USB
*1 Measured at 100nm distance to the left of the peak wavelength, relative to the peak intensity of the unweighted spectral data
*2 Measured at 600 nm wavelength, a signal-to-noise ratio of 10:1, and without averaging
*3 Directly after calibration relative to the calibration standard