Laser radiation, short for "Light Amplification by Stimulated Emission of Radiation," is a highly focused and coherent form of electromagnetic radiation. Lasers are widely used in various fields, including medicine, industry, communication, entertainment, and military applications. However, due to their concentrated energy and specific wavelengths, laser radiation can have significant effects on the human body-both beneficial thiab kev phom sij . Cov ntawv no tshawb fawb txog nws lub cev, tsom mus rau nws cov roj ntsha, kev siv kev nyab xeeb, thiab muaj kev phom sij {}}
{{0 {}}}} S nkag siab laser hluav taws xob
Ua ntej kev kuaj xyuas nws cov kev cuam tshuam rau tib neeg lub cev, nws yog qhov tseem ceeb kom nkag siab dab tsi ntawm lub teeb ci ntsa iab uas txiav txim siab txog nws cov xim (hauv kev pom lub ntsej muag) thiab qhov tob nkag tob rau hauv Cov nqaij mos . lasers tau faib raws li kev ua phem thiab muaj kev phom sij thiab muaj peev xwm ua rau muaj kev phom sij thiab ua rau muaj kev phom sij thiab muaj peev xwm ua rau muaj kev phom sij)
Thawj txoj kev ua kom muaj hluav taws xob ua rau tib neeg lub cev yog los ntawm cov teebmeem thermal, photochemical cuam tshuam, thiab cov teebmeem kev cuam tshuam, thiab cov kev cuam tshuam cov tshuab)
Thermal cuam tshuam:Thaum Laser Zog nqus tau los ntawm cov ntaub so ntswg, nws tau hloov pauv mus ua cua sov, muaj peev xwm ua rau hlawv lossis cov ntaub so ntswg .
DuabileMical cuam tshuam:Qee qhov wavelength, tshwj xeeb hauv ultraviolet thiab pom spectrum, tuaj yeem ntxias cov tshuaj hloov pauv hauv cov ntaub so ntswg, xws li DNA kev puas tsuaj lossis xim hloov .
Neeg kho tshuab cuam tshuam:Kev siv cov roj av siab muaj peev xwm tsim kom muaj kev cia siab los yog hloov siab uas yuav ua rau muaj nqaij tawv lub cev, tshwj xeeb hauv ocular nqaij {}}
2. cuam tshuam ntawm laser hluav taws xob ntawm lub qhov muag
Lub qhov muag yog cov hluav taws xob uas tsis yooj yim tshaj plaws rau laser expure vim yog lawv lub peev xwm ua rau muaj kev puas tsuaj yog tias pom ncaj qha lossis cuam tshuam txog cov chaw ci iab.
2.1 retorke kev puas tsuaj
Lub retina, nyob ntawm sab nraum qab ntawm lub qhov muag, muaj cov photoreceptor hlwb lub luag haujlwm rau lub zog kub thiab tsis pom kev zoo rau cov cua sov thiab cov dig muag {{2 2}} liab thiab ze-infrared lasers (600-900 nm) ua rau muaj kev pheej hmoo loj tshaj plaws vim tias lawv tau nkag mus rau cov neeg muaj kev phom sij tsis muaj kev phom sij.
2.2 Corneal thiab Lens puas
Lasers nyob rau hauv ulaviolet ntau yam (qis dua 400 nm) thiab lens {}}}}}}}} Kev mob no yuav mob thiab tsis pom kev tsis pom kev ib ntus lossis mus tas li .
2.3 flash blindness thiab pom kev ntxhov siab
Txawm tias tsis-ua laser sprosation, xws li los ntawm Handheld Cov Ntsiab Lus, qhov twg tuaj yeem ua rau muaj kev phom sij rau lub davhlau vim kev cuam tshuam ib ntus vim laser.
3. cuam tshuam ntawm laser hluav taws xob ntawm daim tawv nqaij
Laser hluav taws xob kuj tseem cuam tshuam rau daim tawv nqaij, nyob ntawm seb lub wavelength, lub hwj chim, ntev ntawm daim tawv nqaij .
3.1 thermal hlawv
Cov khoom siv hluav taws xob siab, tshwj xeeb yog cov nyob rau hauv infrared ntau yam (e {} Qhov no yuav ua rau muaj cov dej kub ua ntej, ua rau qhov mob siab ceev, nyob ntawm qhov kev kub ntxhov siab, nyob ntawm peb cov khoom siv kom ceev Cov Khoom Siv Vuam feem ntau ua haujlwm ntawm cov qib hluav taws xob no thiab xav kom muaj kev nyab xeeb kev nyab xeeb kom tiv thaiv kev sib tsoo raug mob ....
3.2 Cov Duab Rov Ntaus
Ultraviolet lasers (xws li lasers ua kom zoo dua qub los ntawm kev ua kom tawv nqaij tawv nqaij {} {1} .
3.3 Pigmentation hloov
Tej lasers, tshwj xeeb tshaj yog cov siv hauv dermatology (e {{}}}}} pargeted (poob ntawm cov tawv nqaij), tsis muaj xim tawv nqaij) lossis hyperpigmentation (tsaus nti ntawm lub daim tawv nqaij) .
{{04. kev siv tshuaj kho mob ntawm laser hluav taws xob
Txawm hais tias muaj kev pheej hmoo, Laser Technology tau hloov kho cov tshuaj niaj hnub no
4.1 ophthalmology
Lasers tau siv ntau yam nyob rau hauv phais qhov muag:
Photocoagulation: siv los kaw cia cov hlab ntshav hauv cov hlab ntshav ntshav qab zib retinopathy lossis macular degeneration .
Lask phais: kho qhov tsis zoo xws li iopia, hyperopia, thiab astigmatism los ntawm remhaping lub cornering lub cornea .
Glauscoma kev kho: Qhib cov kev siv dej ntws tawm hauv lub qhov muag siv laser iridotomy .
4.2 dermatology
Lasers ua si ib lub luag haujlwm tseem ceeb hauv kev tu tawv nqaij thiab cov txheej txheem kom zoo nkauj:
Tattoo Tshem Tawm:Laj luv-pulsed lasers tawg tattoo mem tes hais, uas tau muab tshem tawm los ntawm lub cev tiv thaiv kab mob {}}
Vascular txhab:Cov Hom Phiaj Hemoglobin nyob rau hauv cov hlab ntshav los kho chaw nres nkoj-cawv stains thiab spider veins {}}
Daim tawv nqaij rov qab:Tshem tawm puas cov khaubncaws sab nraud povtseg ntawm daim tawv nqaij kom txo cov tawv nqaij, nti, thiab tsis hloov tsis ncaj .
4.3 oncology
Laser kho yog ua haujlwm hauv kev kho mob cancer:
Photodynamic txoj kev kho (PDT): sib xyaw ua ke ntawm cov yeeb tshuaj los rhuav tshem cov qog nqaij hlav cancer hauv pobxias, esophageal, thiab lub ntsws cancers .
Kev phais mob tsawg kawg: lasers tso cai rau kev txiav npluav thiab txoj kev noj haus thaum lub sij hawm cov qog tshem tawm .
4.4 Kho Tsev Kho Mob
Cov lasers Hniav yog siv rau:
Tshem tawm cov ntaub so ntswg lwj
Kho cov pos hniav
Ntxuav hniav dawb
Ua Rau Bioksies
Cov ntawv thov no tau txais txiaj ntsig los ntawm lasers 'precision thiab muaj peev xwm txo qis los ntshav thiab txhawb kev kho kom zoo dua .
5.} kev ua haujlwm thiab ib puag ncig muaj kev phom sij
Cov neeg ua haujlwm hauv kev lag luam uas muaj laser thev naus laus zis lub ntsej muag muaj kev pheej hmoo loj tshaj plaws {}}Kev ntsuas kev nyab xeeb kom muaj kev nyab xeebyog qhov tseem ceeb los tiv thaiv cov neeg ua haujlwm ntawm kev raug mob .
5.1 Chaw Muaj Khoom
Hauv kev tsim khoom, lasers siv rau kev txiav, engraving, thiab drawing . cov neeg ua haujlwm yuav tsum hnav tsim nyogCov tsom iav tiv thaivthiab ua raws cov kev nyab xeeb nruj me ntsis, suav nrog cov khoom sib txuas, cov cim, thiab ceeb toom cov phiajcim {}}
5.2 Tshawb nrhiav thiab kev txhim kho
Cov khw muag khoom siv uas siv cov lasers siab rau kev tshawb fawb yuav tsum tau ua cov kev tswj hwm engineering, cov tswj hwm cov kev nyab xeeb, thiabCov khoom siv tiv thaiv tus kheej (PPE) .Cov kev kawm kev cob qhia yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb tuav .
5.3 Kev Raug Pej Xeem
Cov xwm txheej uas muaj kev tso cai rau kev tso cai rau cov neeg siv nyiaj ntau, xws li muaj ntau lub teb chaws muaj kev txhawj xeeb txog kev muag khoom thiab siv cov khoom siv laser kom tiv thaiv tsis taus..
{{06. Cov Qauv Kev Nyab Xeeb thiab Cov Cai
Txhawm rau txo cov kev pheej hmoo cuam tshuam nrog laser hluav taws xob, cov qauv thoob ntiaj teb thiab cov txheej txheem thoob ntiaj teb tau tsim tsa .
6.1 Kev faib tawm ntawm lasers
Lasers tau faib rau hauv cov chav kawm raws li lawv lub zog thiab muaj peev xwm ua kom muaj kev phom sij:
Chav kawm I: Muaj kev nyab xeeb nyob rau txhua qhov xwm txheej; tsis muaj kev phom sij .
Chav Kawm Ntawv II: Tsawg zog; muaj kev nyab xeeb rau kev sib kis (<0.25 seconds).
Chav kawm IIIA / IIIB: Lub zog nruab nrab; kev phom sij raws li kev pom ncaj qha lossis reflections .
Kev kawm IV: High zog; kev puas tsuaj rau lub qhov muag thiab tawv nqaij; tuaj yeem ua rau hluav taws kub .
6.2 Kev Tiv Thaiv Tiv Thaiv
Kev cai kev nyab xeeb muaj xws li:
Siv tsim nyogCov tsom iav tiv thaivphim rau lub laser nthwv dej thiab hwj huam .
Txhim kho cov kev thaiv thiab cov ntaub qhwv rau kev tiv thaiv cov kab teeb meem nyuaj .
Ua kom muaj qhov cua kom tau tshem tawm cov pa lom toxic tsim tawm thaum lub sijhawm laser .
Qhia kev cob qhia thiab kos npe hauv cov chaw tswj hwm laser-.
Tom qab Ansi Z136 thiab iC 60825 qauv rau kev nyab xeeb siv siv siv .
7. tawm cov tshuab thiab yav tom ntej cov lus qhia
Raws li Laser Technology Txuas ntxiv mus Evolve, cov ntawv thov tshiab thiab cov nyom tawm .
7.1 ultrafast lasers
Femtosecond thiab picosecond lasers muaj ultra-precise kev puas tsuaj thiab tsawg thermal kev puas tsuaj, nthuav lawv siv hauv kev phais thiab microflabrication.
7.2 Quantum Cascade lasers
Siv hauv nruab nrab-infrared specroscopy, cov lasers qhia cog lus hauv kev ntes biomarkers rau cov kab mob thiab saib xyuas ib puag ncig.
7.3 hnav khaub ncaws thiab cov nyom
Kev nce qib hauv kev kawm hauv miniaturization yog tsim cov khoom lag luam laser laser rau kev kho mob hauv tsev thiab cov neeg siv khoom lag luam kev nyab xeeb txog kev siv thoob plaws .
8.} Xaus
Laser hluav taws xob muaj txiaj ntsig thiab cov txiaj ntsig ntawm cov ntaub so ntswg muaj txiaj ntsig nyob rau hauv cov tshuaj, thiab kev sib txuas lus tsis zoo rau hauv kev ua haujlwm tiag tiag hauv kev ua haujlwm ntawm cov tshuaj, thiab tsis raug cai. Yog li ntawd, nkag siab ob qho tib si Kev kho kom zoo nkauj thiab kev phom sij ntawm laser hluav taws xob yog qhov tseem ceeb rau kev ua haujlwm ntawm cov qauv kev nyab xeeb thaum muaj kev tsim kho lub zog ntawm lasers kom nyab xeeb thiab zoo.