Txawm tias thawj laser tau lees paub tias yog kev tsim txom. Theodore Maiman pom thawj laser li muaj lub zog ntawm ib qho "Gillette" raws li nws yuav hlawv dhau ib qho Gillette rab phom hniav. Niaj hnub no, nws tau txais tias qis qis zog lasers nrog tsuas yog ob peb lub teb chaws ntawm cov khoom siv tawm tau ua rau tib neeg pom thaum lub nqaj hits lub qhov muag ncaj qha los yog tom qab kev xav ntawm lub ci ntsa iab. Ntawm wavelengths uas yog lub pobtawb thiab lub lens tau ua kom zoo, qhov sib thooj thiab qhov sib txawv ntawm laser lub teeb txhais tau hais tias nws tuaj yeem teem rau ntawm lub qhov muag mus rau hauv ib qho chaw me me rau ntawm retina, ua rau muaj kev kub ntxhov thiab kev puas tsuaj nyob hauv vib nas this los yog tsawg dua sij hawm.
Lasers feem ntau sau nrog tus nab npawb kev ruaj ntseg, uas qhia tau hais tias yuav ua li cas lub laser yog:
Qib 1 yog kev nyab xeeb, feem ntau vim hais tias lub teeb muaj nyob rau hauv ib qho chaw thaiv, piv txwv li hauv CD players.
Hoob 2 yog kev nyab xeeb thaum siv lub sijhawm; qhov muag ntses ntawm lub qhov muag yuav thaiv kev puas tsuaj. Feem ntau mus txog 1 mW zog, piv txwv li laser pointers.
Cov chav kawm 3R (yav dhau los IIIa) lasers feem ntau yog txog li 5 mW thiab koom nrog ib qho kev pheej hmoo ntawm kev puas qhov muag thaum lub sij hawm ntsais muag me ntsis. Kev nkag mus rau hauv lub voj voog kom ntev li ob peb feeb yuav ua rau muaj kev puas tsuaj rau ntawm qhov chaw retina.
Hoob 3B tuaj yeem ua rau lub qhov muag pom kev puas tsuaj thaum muaj kev cuam tshuam.
Cov hoob kawm 4 lasers tuaj yeem hlawv ntawm daim tawv nqaij, thiab qee zaum, txawm hais tias lub teeb tawg txawm ua rau lub qhov muag thiab / lossis daim tawv nqaij puas. Muaj ntau yam kev lag luam thiab cov lasers nyob hauv hoob no.
Cov cim powers yog rau pom teeb, nruam-yoj lasers. Rau cov pulsed laser thiab pom tsis meej wavelengths, lwm cov hwjchim pub siv. Cov neeg ua hauj lwm nrog chav kawm 3B thiab chav kawm 4 lasers tuaj yeem tiv thaiv lawv lub qhov muag nrog kev ruaj ntseg yas uas tsim los kom nqhuab lub teeb ntawm ib qho kev tshav puam.
Infrared lasers nrog wavelengths ntev dua li ntawm 1.4 micrometers feem ntau hu ua "qhov muag-nyab xeeb", vim hais tias lub pob npaus nyhav dhau lub teeb ntawm cov wavelengths, tiv thaiv cov retina los ntawm kev puas tsuaj. Daim ntawv qhia "qhov muag-nyab xeeb" tuaj yeem yuav tsis tseeb, tiam sis, raws li nws tsuas yog siv rau lub hwj huam qis zog nruam ntug; ib lub hwj chim loj los yog Q-switched laser ntawm cov wavelengths tuaj yeem hlawv lub pobntseg, ua rau qhov muag raug puas tsuaj, thiab txawm qev qis zog yuav ua rau lub qhov muag raug mob.
Lasers tuaj yeem tsim kev puas tsuaj rau ob qho tib si dav dav thiab civil av qeeg, vim tias muaj peev xwm yuav tsis cuam tshuam rau cov neeg tsav tsheb tsis ntev los yog cov neeg dig muag dig muag. Saib Lasers thiab kev nyab xeeb ntawm kev tsav dav hlau ntxiv rau hauv nqe lus no.
