optical glass Definition

lens, perspective, aperture, flint glass, kaleidoscope, eyepiece, prism, crown glass, optical flint, optical crown, binocular, collimated, cuvette, manograph, objective, phantasmagoria, shade, shades, biprism, crown lens, dense, lithium, catoptron, lead glass, perspicil, canada balsam, germanium, neodymium, omphaloptic, optical prism, thoria, camera, diffraction grating, eye, eyecup, eyes, finder, ghost, ghosting, glasses, illuminator, magnifier, optic, parallax, reflector, refractometer, sextant, spectacle, speculum, telescope, telescoped, fiberoptics, fibre optics, filter, filtered, filtering, optical fibre, refraction, viewfinder, eod, phantom, rod, diffuser, fiber, film, grating, lense, reticule, aberration, against, anamorphoscope, anastigmatic, asterism, barrel, canal, coelostat, collimate, collimator, condenser, diameter, diaphragm, distortion, enantiomer, erector, eyeglasses, fade-in, fade-out, focal length, focal plane, focus, focused, fresnel lens, galo, halo, image, imaging, laser, london smoke, microscope, mirage,