B270 flat window – Israel optical windows
B270 flat window – Israel optical windows B270 flat window, size 65.0×163.7+/-0.2mm, thickness 4.0+/-0.15mm, both sides SQ 80-50s/d, surface power/irregularity 3/1 fringes at 633nm per inch, Transmitted Wavefront distortion one L per inch at 633nm, parallelism <1arcmin, bevels 0.4-0.6mm x45deg, clear aperture central size 5mm from the edge, coated surface A: Tavg<0.1% @800-1100nm and Tavg>85% …