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Light distribution measurement systems



The emission of devices like organic LEDs or other light sources varies strongly with the viewing angle. For proper characterization of such samples it is therefore necessary to measure brightness, chromaticity and the emission spectrum for different detection angles. Hamamatsus C9920-11 Light distribution characteristics measurement system meets these needs by using a rotating stage as sample mount and a highly sensitive detector.

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Type number C9920-11
Rotating stage Minimum angle setting 1°
Angle setting range 0 ° to +80 °, -80 ° to +80 °
Minimum step setting 1 °
Resolution 0.1 ° or less
Detector BT (back thinned) cooled CCD
Cooling temperature (CCD) -15 ℃
No. of photosensitive device channels 1024 ch
Wavelength measurement range 380 nm to 780 nm (detector: 200 nm to 950 nm)
Fiber probe 1.5 m
Measurement spot size 200 μm
Range for brightness measurements 10 cd/m2 to 10 000 cd/m2

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