BAR polariser

Set between the led and the diffuser, the polariser helps to delete the reflection of the lighting on the workpieces to be controlled. The camera, equipped with a polariser filter, a.k.a analyser, can then start the analysis of the parts, without being disturbed by shiny effects. Polarisers can be very useful to lead the quality control of workpieces packed in transparent plastic bags. Only available for visible wavelengths, the polariser highly reduces the lighting power (about 50%). Beware! Since it has a short lifespan, the polarisation properties of the polariser have to be checked regularly.