Tazama chanzo cha Leza

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[[Picha:Lasers.JPG|thumb|Leza Nyekundu(660 & 635 nm), kijani(532 & 520 nm) na bluu (445 & 405 nm)]]

'''Leza''' (kutoka [[Kiingereza]] '''laser''', [[akronimi]] ya [[fungu la maneno]] ''"Light Amplification by Stimulated Emission of Radiation"''<ref name=":0">{{Cite web|url=https://spaceplace.nasa.gov/laser/en/|title=What is a laser? :: NASA Space Place|author=NASA|date=25 May 2017|language=en-US|work=spaceplace.nasa.gov|accessdate=2018-07-09}}</ref><ref>{{Cite web|url=https://lasers.llnl.gov/education/how_lasers_work|title=How Lasers Work|author=Lawrence Livermore National Laboratory|date=|language=en-US|work=lasers.llnl.gov|accessdate=2018-07-09}}</ref>) ni [[chombo]] cha kukuza na kushadidisha [[mwali|miali]] kuelekea upande mmoja kutengeneza ''[[mwangaza leza]]''. 

[[Kifaa]] hiki ni maalumu, si kama [[taa]] nyingine za kutoa [[mwangaza]] na miali yake ina matumizi mengi.

== Historia ==
Leza ina [[historia]] kubwa na ni mojawapo wa nyanja zilizofanyiwa [[utafiti]] mkubwa tangu [[mwaka]] [[1917]]. Utafiti wa leza umekua kutokana na utafiti wa [[mnururisho]] (radiation) na utafiti wa [[usumakuumeme]] (electromagnetism).

== Manufaa ya leza ==
Leza ina matumizi mengi yakiwemo:
* [[Burudani]] - inatumika kwa vifaa vinavyosoma vijisahani rekodi (''disc drives'') na vifaa zinazotoa miali ya [[rangi]] tofautitofauti katika [[nyumba]] za burudani
* [[Biashara]] kwa vifaa kama vile vya kupiga chapa, vya kupima [[joto]] vya leza, vielekezi leza na vinginevyo
* [[Viwanda|Viwandani]] kutengeneza vifaa vya leza vya kukata, kuchomelea, kupima [[urefu]] [[dijiti|kidijiti]], kutia [[alama]] vitu na kuchomea vitu zinazoundwa kwa joto
* [[Mawasiliano]] - kupeperusha [[mawimbi]] ya [[runinga]] na [[intaneti]]<ref name=":0" />
* [[Usalama]] - katika [[ala]] za [[vita]] hasa [[tochi]] za kulenga shabaha katika vifaa vya kivita kama vile [[bunduki]] za kisasa, kuelekeza [[kombora]] za kisasa
* [[wikt:matibabu|Matibabu]] - kufanya [[wikt:operesheni|operesheni]] isiyo ya [[upasuaji]]<ref>{{Cite Web|url=https://www.glaucoma.org/treatment/laser-surgery.php|title=Laser Surgery|author=Glaucoma Research Foundation|accessdate=9 July 2018|date=25 August 2017|language=en|work=Glaucoma Research Foundation|archivedate=2018-11-14|archiveurl=https://web.archive.org/web/20181114002109/https://www.glaucoma.org/treatment/laser-surgery.php}}</ref>
* [[Upodozi]] - kufanya operesheni zisizo za [[upasuaji]] za kubadilisha [[umbile]] ili kuongeza [[urembo]] kama vile operesheni ya [[lipo ya leza]] (ijulikanayo kwa Kiingereza kama ''"Liposuction"'') inayopunguza [[mafuta]] [[Mwili|mwilini]]. Operesheni ya lipo hufanywa na [[mashine]] ya lipo ya leza ambayo ilibatilisha mfumo wa zamani wa operesheni ya lipo ambao watu walifanyiwa upasuaji. 

== Tanbihi ==
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