From: Bob Higgins
Ø The alumina transmission cuts off between 3-4 microns… So, unless the Optris has an unexpected sensitivity to light shorter than 6 microns, then it should assess the average temperature correctly. Well, yeah … the “unexpected sensitivity” is almost a given – at least as an unknown variable in this situation. I hate to focus on the obvious next step, but why not save a lot of time and tedious diversion - by taking the laser, the ceramic and the Optris – NOTHING else, and shine the laser through the ceramic onto the Optris at close range and see what you get. You should see nothing. If you see anything at all, and I predict that you will - then Rossi’s dog-bone is in deep dog-poo (because of the 4th power problem)
