Lens 506429 220769715 2008-06-21T14:13:43Z Tresckow 288007 {{wiktionarypar|lens}} '''Lens''' can refer to: __NOTOC__ ==In optics== *[[Lens (optics)]], an optical element with perfect or approximate axial symmetry which transmits and refracts light **[[Lens (anatomy)]], a part of the eye **[[Corrective lens]] for correction of human vision **[[Photographic lens]], a lens designed for use on a camera. See also [[:Category:Photographic lenses]] **[[Sunglasses#Lens|Sunglass lenses]], which are light-attenuating elements {{Seealso|Category:Lenses}} ==Focussing of other radiation and forces== *[[Gravitational lens]], a massive astronomical object which bends the light from objects beyond it *[[Electrostatic lens]], a device used to focus or collimate electron beams *[[Explosive lens]], a shaped explosive charge with focussed blast used primarily in nuclear weapons *[[Acoustic lens]], a mechanical device used in loudspeaker design to improve the dispersion of high frequencies *[[Microwave lens]], used to focus microwave radiation and often employed in [[slotted waveguide]] antennas ==Uses associated with shapes== ''The word ''lens'' originally comes from the Latin for a [[lentil]]; the first, biconvex, optical lens was given its name because it was lentil-shaped.'' *[[Lens (genus)]], the genus of the lentil plant *[[Lens (geometry)]], a geometric shape formed from two arcs *[[Lens (geology)]], a body of ore or rock that is thick in the middle and thin at the edges *[[Lens (groundwater)]], a layer of fresh water derived from rainfall, overlying saline groundwater ==Other uses== * a metaphor for a [[Perspective (cognitive)|point of view]] *a fictional alien device in E. E. Smith's [[Lensman]] series, which gives its bearer telepathic and other abilities ==Place names== *[[Arrondissement of Lens]], in the ''département'' of Pas-de-Calais, France **[[Lens, Pas-de-Calais]], a ''commune'' in that arrondissement ***[[RC Lens]], its football (soccer) club *[[Lens, Belgium]] *[[Lens, Valais]], Switzerland ==Names of people== *[[Louis Lens]], Flemish rose breeder *[[Nicholas Lens]], Belgian composer ==Acronyms== *[[Laser Engineered Net Shaping]], a rapid prototyping technology capable of building fully-dense metal parts {{disambig}} [[ar:عدسة]] [[cs:Čočka]] [[de:Lens]] [[es:Lente (desambiguación)]] [[eo:Lenso]] [[fr:Lentille]] [[ko:렌즈 (동음이의)]] [[hr:Leća]] [[nl:Lens]] [[no:Linse]] [[ru:Линза (значения)]] [[sk:Šošovka]] [[th:เลนส์]] [[tr:Lens]] [[uk:Лінза (значення)]] [[vo:Lens]] [[it:Lens]] [[pt:Lens (desambiguação)]]