A system and method for testing telescope optics are disclosed. The telescope optics can be testing in-situ, thus more accurately revealing the as-used optical conditions. The optical conditions are input to a test system which, by objective analysis, reveals a condition of the optics and an indication...http://www.google.de/patents/US7755766?utm_source=gb-gplus-sharePatent US7755766 - Telescope interferometric maintenance evaluation tool
