optical flat

listen to the pronunciation of optical flat
الإنجليزية - التركية
optik düzlük
الإنجليزية - الإنجليزية
a disk of high-quality quartz glass having at least one side ground and polished with a deviation in flatness less than 50 nanometers all over, and a surface quality of 5 microfinish or less; used, in an interferometer, to measure the flatness of other surfaces
optical flat

    الواصلة

    op·ti·cal flat

    التركية النطق

    äptîkıl flät

    النطق

    /ˈäptəkəl ˈflat/ /ˈɑːptɪkəl ˈflæt/
المفضلات