In order to quantitatively measure stray light, the stray light measure equipment is established for infrared optical system by a point source transmission method. With 5W CO2 laser expanding and collimating, it gets incidence irradiance uniform field. With CO2 laser collimated transmitting the measured infrared image system, it gets distribution of image irradiance and PST in accordance with the viewing angle(-10°~-2.5°) and(2.5°~10°). The stray light measure equipment can effectively evaluate the level of...
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