optical device(n = noun.artifact) - a device for producing or controlling light;
is a kind of device
has particulars: autofocus, biprism, camera lucida, coelostat, collimator, diffraction grating, grating, diffuser, diffusor, finder, view finder, viewfinder, kerr cell, laser, optical maser, lens, lens system, lense, nicol prism, planetarium, polarimeter, polariscope, optical prism, prism, projector, rochon prism, wollaston prism, stereoscope, viewer

acoustic device, birth control device, breathing device, computing device, contraceptive device, data input device, detonating device, device, device characteristic, device driver, elastic device, electrical device, electromechanical device, electronic device, exercise device, explosive device, flotation device, guidance device, holding device, homing device, improvised explosive device, input device, intrauterine device, lifting device, measuring device, mechanical device, memory device, monitoring device, nuclear device, optical, optical aberration, optical activity, optical bench, optical cable, optical condenser, optical crown, optical crown glass, optical disc, optical disk, optical fiber, optical fibre, optical flint, optical fusion, optical glass, optical illusion, optical instrument, optical lens, optical maser, optical opacity, optical phenomenon, optical prism, optical pyrometer, optical telescope, peripheral device, projective device, prophylactic device, prosthetic device, rhetorical device, safety device, semiconductor device, signaling device, storage device, warning device