Advanced Optics manufactures high quality, affordable optical mirrors and windows made of low expansion borosilicate glass, fused silica, zerodur, BK7 and borofloat from commercial grade polished up to 1/20 wave. In addition to our many off-the-shelf optics, we offer custom fabrication, custom coatings and free engineering services. All our optical components are excellent performers when it comes to aerospace, military and commercial avionics, medical instrumentation, academics and research, and industrial applications. In addition to our in-stock selection of optics, we offer custom fabrication to meet exact customer requirements. Please visit our web site at www.advancedoptics.com for further information.