You’re the first to ask 
I printed a layer of a model for with a sheet of paper in the tank. One print for each setting. I had my Canon EOS-60D camera in full manual mode and on a tripod above the printer. (15 second, ISO 100, f22, K3900)
Then I used software to read the average pixel value of the green channel in a region of the image I was interested in. And put the data into Excel. Viola, a very accurate table of laser intensities.
Clear01 Setting:
Black Setting:
