GE WINDOW THINGS TO KNOW BEFORE YOU BUY

Something in excess of one hundredºC isn't suggested. By the point it reaches 200ºC it is nearly opaque whatsoever wavelengths. If you need a substantial temperature window, you’re much better suited to stick with a cloth like MgF2, YAG or our previous Good friend sapphire.The deviation in parallelism of these windows is below three arc minutes