lens system(n = noun.artifact) lens, lense - a transparent optical device used to converge or diverge transmitted light and to form images;
is a kind of optical device
is a part of optical instrument
has particulars: anastigmat, anastigmatic lens, camera lens, optical lens, compound lens, condenser, optical condenser, contact, contact lens, converging lens, convex lens, crown lens, concave lens, diverging lens, eyepiece, ocular, field lens, fresnel lens, intraocular lens, meniscus, eyeglass, monocle, object glass, object lens, objective, objective lens

N  optical instruments, lens, meniscus, magnifier, sunglass, magnifying glass, hand lens, microscope, megascope, tienoscope, spectacles, specs, glasses, barnacles, goggles, eyeglass, pince-nez, monocle, reading glasses, bifocals, contact lenses, soft lenses, hard lenses, sunglasses, shades, periscopic lens, telescope, glass, lorgnette, spyglass, opera glass, binocular, binoculars, field glass, burning glass, convex lens, concave lens, convexo-concave lens, coated lens, multiple lens, compound lens, lens system, telephoto lens, wide-angle lens, fish-eye lens, zoom lens, optical bench, astronomical telescope, reflecting telescope, reflector, refracting telescope, refractor, Newtonian telescope, folded-path telescope, finder telescope, chromatoscope, X-ray telescope, radiotelescope, phased-array telescope, Very Large Array radiotelescope, ultraviolet telescope, infrared telescope, star spectroscope, space telescope, altazimuth mount, equatorial mount, refractometer, circular dichroism spectrometer, interferometer, phase-contrast microscope, fluorescence microscope, dissecting microscope, electron microscope, transmission electron microscope, scanning electron microscope, SEM, scanning tunneling electron microscope, objective lens, eyepiece, barrel, platform, focusing knob, slide, slide glass, cover glass, counting chamber, illuminator, light source, polarizer, reticle, cross-hairs, light pipe, fiber optics mirror, reflector, speculum, looking- glass, pier-glass, cheval-glass, rear-view mirror, hand mirror, one-way mirror, magnifying mirror, fun house, prism, diffraction grating, beam splitter, half-wave plate, quarter-wave plate, camera lucida, camera obscura, magic lantern, stereopticon, chromatrope, thaumatrope, stereoscope, pseudoscope, polyscope, kaleidoscope, photometer, eriometer, actinometer, lucimeter, radiometer, ligth detector, photodiode, photomultiplier, photodiode array, photocell, X-ray diffractometer, goniometer, spectrometer, monochrometer, UV spectrometer, visible spectrometer, Infrared spectrometer, Fourier transform infrared spectrometer, recording spectrometer, densitometer, scanning densitometer, two-dimensional densitometer, abdominoscope, gastroscope, helioscope, polariscope, polemoscope, spectroscope, abdominoscopy, gastroscopy, microscopy, microscopist.

12-tone system, abo blood group system, abo system, accentual system, accounting system, achromatic lens, adp system, air transportation system, alarm system, anastigmatic lens, ardois system, articulatory system, audio system, auditory system, autokinetic system, automatic data processing system, automixte system, autonomic nervous system, backup system, banking system, basic point defense missile system, bell system of control, bertillon system, binary number system, binary numeration system, binary system, block system, brake system, british imperial system, british system, buddy system, bulletin board system, cable system, camera lens, cardiovascular system, cartesian coordinate system, cascade system, case system, caste system, central nervous system, cgs system, chautauqua system, circulatory system, classification system, closed-loop system, closeup lens, coding system, color television system, colour television system, communication system, compound lens, computer system, computing system, concave lens, consonant system, consonantal system, contact lens, continental system, contract system, control system, converging lens, convex lens, coolant system, cooling system, coordinate system, copernican system, coude system, credit system, crofton system, crown lens, crystalline lens, data system, database management system, decimal number system, decimal numeration system, decimal system, decimal system of classification, defence system, defense system, department of defense laboratory system, dewey decimal system, digestive system, disk operating system, diverging lens, drainage system, drive line system, duodecimal number system, duodecimal system, dynamical system, early warning system, economic system, electoral system, electrical system, electron lens, emergency alert system, endocrine system, engine cooling system, english system, exhaust system, explosive detection system, farm credit system, federal home loan bank system, federal reserve system, female reproductive system, feudal system, fiber-optic transmission system, fibre-optic transmission system, field lens, field-sequential color television system, field-sequential color tv system, file system, filing system, fire control system, fisheye lens, fixed-point representation system, floating-point representation system, force-feed lubricating system, fresnel lens, fuel injection system, fuel system, gambling system, ganz system, gas system, gastrointestinal system, genital system, genitourinary system, genus lens, global positioning system, guidance system, heating system, hexadecimal number system, hexadecimal system, hierarchical classification system, high fidelity sound system, highway system, honor system, hub-and-spoke system, hydraulic system, hydraulic transmission system, hypermedia system, hypertext system, ignition system, immune system, inertial guidance system, inertial navigation system, information processing system, information system, integumentary system, interactive multimedia system, intercommunication system, international system, international system of units, intraocular lens, judicial system, jury system, language system, legal system, lens, lens cap, lens capsule, lens cover, lens culinaris, lens implant, lens maker, life-support system, limbic system, list system, logical system, loudspeaker system, lubricating system, lymphatic system, macro lens, male reproductive system, marconi system, measuring system, mechanical system, medical literature analysis and retrieval system, mercantile system, merit system, metric system, microsoft disk operating system, milky way system, missile defence system, missile defense system, monaural system, monetary system, mononuclear phagocyte system, morphophonemic system, multimedia system, muscle system, musculoskeletal system, naval tactical data system, navigational system, nervous system, nonlinear system, notational system, number representation system, number system, numeration system, object lens, object-oriented database management system, objective lens, octal number system, octal numeration system, operating system, optical lens, p.a. system, pa system, parasympathetic nervous system, patent system, peripheral nervous system, philosophical system, phone system, phonemic system, phonologic system, phonological system, plumbing system, point system, political system, portal system, portrait lens, positional representation system, power system, pressure-feed lubricating system, pricing system, promotion system, propulsion system, prosodic system, ptolemaic system, public address system, pure binary numeration system, purkinje's system, pyramidal motor system, quadraphonic system, quadriphonic system, railway system, rating system, receiving system, recording system, reference system, refrigeration system, relational database management system, reproductive system, respiratory system, reticular activating system, reticuloendothelial system, root system, school system, scoring system, scrutin de liste system, scrutin uninomial system, scrutin uninominal voting system, security system, selective service system, sensory system, sewage system, sewer system, sexadecimal number system, ship-towed long-range acoustic detection system, shipboard system, si system, single-member system, skeletal system, small computer system interface, social system, software system, solar system, solar thermal system, somatic sensory system, somatosensory system, sound system, speaker system, spoils system, sprinkler system, steering system, stereo system, stereophonic system, subway system, support system, surface-to-air missile system, surveillance system, suspension system, sympathetic nervous system, system, system administrator, system call, system clock, system command, system components, system error, system of logic, system of macrophages, system of measurement, system of numeration, system of rules, system of weights, system of weights and measures, system program, tandem system, target acquisition system, tax system, telecom system, telecommunication system, telephone system, telephoto lens, television system, tense system, theological system, third-rail system, three-torque system of control, time-delay measuring system, tonal system, tone system, torrens system, touch system, transmission system, transportation system, twelve-tone system, uninominal system, uninominal voting system, united states customary system, unix operating system, unix system, urinary system, urogenital system, vascular system, venous blood system, ventilating system, ventilation system, vestibular system, visual system, voting system, vowel system, water system, water vascular system, weapon system, weapons system, wide-angle lens, word processing system, writing system, zoom lens