A lot of the hits for "Conrac" mention them being used in medical diagnostic equipment. In those applications, the displayed brightness needs to be linear, accu

A lot of the hits for "Conrac" mention them being used in medical diagnostic equipment. In those applications, the displayed brightness needs to be linear, accurate, and reproducible because the difference between "you're fine" and "you've got cancer" can be a slight difference in ultrasound return signal level.