Meaning of OPTICAL DEVICE

WordNet Dictionary
	Definition:		[n]  a device for producing or controlling light
	See Also:		biprism, camera lucida, coelostat, collimator, device, diffraction grating, diffuser, diffusor, finder, grating, Kerr cell, laser, lens, lens system, Nicol prism, optical maser, optical prism, planetarium, polarimeter, polariscope, prism, projector, Rochon prism, stereoscope, view finder, viewer, viewfinder, Wollaston prism