Fast diffusors

for lower Irradiance

A diffusor with increased transmission has a higher error in cosine matching, but there exist applications where this can be tolerated. One example is the measurement of point like sources as vehicle lamps in a longer distance. Therefore, two modified diffusors are offered as accessory for specbos 1211-2 and spectraval 15x1 - a version with medium transmission and a version with high transmission:

Angular behavior of the medium and high transmission type compared to the standard version
Angular behavior of the medium and high transmission type compared to the standard version

The transmission of the medium version is 20 times higher and the transmission of the high version is 60 times higher than that of the standard diffusor version.

Diffusor type Measuring range Illuminance (Illum. A) Part number for
specbos 1211-2
Part number for
specbos 1211UV-2
Medium transmission 0.05 ... 30 000 lx ACC 013Med No special version available for specbos 1211UV-2
High transmission 0.02 ... 12 000 lx ACC 013High No special version available for specbos 1211UV-2

Please note:
If you want to order such diffusor for a device, which was manufactured before 2019, please add the serial number and the desired measuring range to your request.

Diffusor type Measuring range Illuminance (Illuminant A)

Part number for spectraval

Medium transmission 0.05 ... 25 000 lx ACC 032Med
High transmission 0.02 ... 10 000 lx ACC 032High

Your request
Please calculate 9 plus 8.