APPARATUS AND METHOD FOR TESTING A REFLECTOR COATING

摘要

A method of testing a coating (14) on a reflector (10) having a first focal point (16) includes placing a mirror (40) at the first focal point (16) of the reflector (10) and angled to orient with an area (130) on the coating (14). Electromagnetic (EM) radiation (30) is directed to the mirror (40) which then directs the EM radiation (30) on the area (130). The EM radiation (30) which is reflected from the coating is collected onto a sensor (50) disposed at a second focal point (18). The intensity of the EM radiation (30) collected on the sensor (50) is detected.