| | autofocus; biprism; camera lucida; coelostat; collimator; diffraction grating, grating; diffuser, diffusor; finder, viewfinder, view finder; Kerr cell; laser, optical maser; lens, lense, lens system; Nicol prism; planetarium; polarimeter, polariscope; prism, optical prism; projector; Rochon prism, Wollaston prism; stereoscope; viewer |