Terms for subject Optics

English	German
dispersive front member	Vorderglied mit zerstreuender Wirkung
front collective member	sammelndes Vorderglied
front collective member	Telepositiv
front dispersive member	Vorderglied mit zerstreuender Wirkung
front member	Vorderglied (e.g. of a photographic lens)
moving member	bewegliches Teil
rear collective member	Hinterglied mit sammelnder Wirkung
rear member	Hinterglied (of an optical system)
rear member	hinteres Glied
stationary member	festes Glied
stationary rear member	festes Hinterglied