Yuav ua li cas xaiv Laser Safety Glasses?

Laser Safety GlassesXaiv Phau Ntawv Qhia

Taw qhiaLaser Safety Glassesyog ib qho tseem ceeb ntawm cov khoom siv tiv thaiv tus kheej rau txhua tus neeg ua haujlwm nrog lasers. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov looj tsom iav uas tsim nyog los tiv thaiv ob lub qhov muag los ntawm teeb meem laser hluav taws xob. Phau ntawv qhia no muab cov ntaub ntawv qhia txog ntau hom lasers, qhov xav tau ntawm cov looj tsom iav rau txhua hom, thiab kev txiav txim siab rau kev xaiv cov looj tsom iav zoo laser.

Laser Classifications Ntau hom lasers muaj ntau theem ntawm hluav taws xob, uas yog cais raws li lawv cov kev pheej hmoo. Cov txheej txheem kev faib tawm muaj txij li Chav Kawm 1 (muaj kev nyab xeeb nyob rau hauv ib txwm muaj) mus rau Chav Kawm 4 (muaj zog lasers uas tuaj yeem ua rau raug mob hnyav). Cov lus hauv qab no qhia txog qhov kev faib tawm:

Raws li American laser kev nyab xeeb tus qauv ANSIZ136.1 thiab International Electrotechnical Commission thiab European Union laser kev nyab xeeb tus qauv IEC CE EN207 / EN208, lasers tuaj yeem raug cais raws li cov qauv hauv qab no.

1.American laser kev nyab xeeb tus qauv ANSIZ136.1: Ntsuas los ntawm qhov muag ntom ntom (OD, Optical Density), kev sib raug zoo ntawm beti.en optical ntom ntom OD thiab transmittance T: D=-log10 T.
2.International Electrotechnical Commission, European Union laser kev nyab xeeb tus qauv lEC CEEN2O7 / EN208: xav txog qhov opticaldensity OD, thiab tseem yuav tsum tau xav txog qhov kev puas tsuaj, uas yog, lub peev xwm ntawm laser tiv thaiv iav los tiv thaiv laser tawg.Lwm lub teb chaws suav nrog Tuam Tshoj, Nyiv etc. feem ntau ua raws li tus qauv no.

Laser Safety GlassesYuav Tsum Muaj Ntau hom lasers xav tau ntau qib kev tiv thaiv. Cov looj tsom iav yuav tsum muaj peev xwm thaiv tau qhov tshwj xeeb wavelengths ntawm cov hluav taws xob laser, nrog rau muab qhov muag pom qhov muag txaus (OD) kom txo cov hluav taws xob kom muaj kev nyab xeeb. OD qhia txog lub peev xwm ntawm lub lens kom attenuate (txo) qhov kev siv hluav taws xob. Cov lus hauv qab no qhia txog qhov pom zoo OD rau cov chav kawm laser sib txawv:

Kev txiav txim siab tseem ceeb Thaum xaiv Laser Safety Glasses, xav txog cov hauv qab no:

(1) Txheeb xyuas qhov ua haujlwm wavelength ntawm lub laser.
(2) Paub meej tias lub zog tso zis ntawm lub laser.
Nruam laser: tso zis zog
Pulse laser: ib leeg mem tes zog, mem tes dav, mem tes repetition zaus, thiab lwm yam.
(3) Xam MPE (Qhov siab tshaj plaws tso cai)
(4) Ntsuas qhov ntev tshaj plaws ntawm qhov raug
(5) Ntsuam xyuas qhov raug ntau tshaj plaws
(6) Xam qhov yuav tsum tau kho qhov muag ceev
(7) Thaum siv lasers nyob rau hauv qhov pom band, paub meej tias nws puas tsim nyog pom lub laser?
(8) Xaiv cov duab uas tsim nyog ntawm cov iav tiv thaiv laser (txawm tias koj yuav tsum hnav tsom iav kho, xws li myopia, thiab lwm yam)

Hais txog MPE (Qhov Kev Pom Zoo Tshaj Plaws Tshaj Plaws)
Tus nqi MPE yog txhais raws li: 1/10 ntawm lub laser tso zis zog thaum qhov tshwm sim ntawm kev puas tsuaj yog 50 feem pua ​​​​nyob rau hauv ncaj qha laser irradiation. Tus nqi no yog ib qho kev ntsuas ntsuas uas sawv cev rau tib neeg kev nyab xeeb. Tus nqi MPE qhia nyob rau hauv ob qhov ntau ntawm laser wavelength thiab lub sij hawm raug. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias MPE tus nqi yog nyob ntawm qhov chaw txais lub teeb, qee lub zog ceev (w / m2) thiab lub zog ntom ntom (J / m2).
Cov cheeb tsam no yog qhov txwv qhov chaw txais lub teeb. Tus nqi sib txawv nyob ntawm seb hom kev puas tsuaj, laser wavelength, ib feem (qhov muag lossis tawv nqaij), thiab lub sijhawm irradiation.

Hais txog Optical Density OD Tus Nqi (Optical Density)
Qhia qhov degree ntawm lub teeb kis tau tus mob, thiab qhov taw qhia siv ntau dua yog qhov kis tau tus mob (%).
Feem ntau, peb siv qhov feem pua ​​​​tus nqi (feem pua) ntawm qhov kev xa tawm los qhia qhov degree ntawm kev xa tawm.
Tab sis kuj tseem muaj qee lub sij hawm thaum nws yooj yim dua los siv nws tus nqi logarithmic, peb txhais cov nqi xa tawm uas sawv cev los ntawm logarithm li OD tus nqi (optical ntom).
Optical density feem ntau yog siv nyob rau hauv cov ntxaij lim dej kho qhov muag, qhov twg nws sawv cev rau tus nqi attenuation ntawm laser lub teeb emitted los ntawm laser tsom iav. Nws cov qauv kev suav yog:

(PI: Tib neeg Txhaj PT: Transmittance, T: Transmittance ntawm Specific Wavelength)

* Qhov loj dua tus nqi OD, qhov loj dua qhov attenuation tus nqi ntawm qhov teeb meem beam, thiab lub zog tiv thaiv muaj nuj nqi.
* Qhov loj dua tus nqi OD, qhov qis dua qhov kev xa tawm.

Xaus Xaiv qhov zoo laser tsom iav tsom iav yog qhov tseem ceeb los tiv thaiv ob lub qhov muag los ntawm teeb meem laser hluav taws xob. Cov looj tsom iav uas tsim nyog yuav tsum raug xaiv raws li cov chav kawm laser, tshwj xeeb wavelengths, lub zog, thiab qhov xav tau ntawm qhov muag pom. Nws yog ib qho tseem ceeb uas yuav tau xav txog tej yam xws li kev nplij siab, thav duab style, ntawv pov thawj, thiab kev huv huv thaum xaiv cov looj tsom iav laser. Ua raws li cov lus qhia no yuav pab xyuas kom koj muaj kev tiv thaiv zoo thaum ua haujlwm nrog lasers.

Daim ntawv ceeb toom

• Thov tsis txhob saib ncaj qha ntawm lub laser thaum hnav looj tsom iav tsom iav.
• Tsis txhob muab lub teeb laser ncaj qha rau ntawm cov iav tiv thaiv, txwv tsis pub nws yuav ua rau cov tsom iav puas.
• Thov tsis txhob siv nws nyob rau lub sijhawm uas tsis yog lub laser thiab wavelength teev. (txawm tias lub npe laser yog tib yam, nws lub wavelength yuav txawv)
• Thaum lub sijhawm ua haujlwm, thov tsis txhob tshem tawm cov tsom iav laser. Laser kev nyab xeeb tsom iav tsis tuaj yeem siv los ua cov tsom iav kev nyab xeeb.
• Ua tiav absorbing laser tsom iav tsis tuaj yeem nqus tag nrho lub teeb laser. (Thov xa mus rau daim duab nqus cov yam ntxwv)
• Thov tsis txhob siv cov tsom iav tiv thaiv laser nrog kev xa tawm hauv qab 20 feem pua ​​​​hauv chav tsaus xws li chav tsaus. Thov tsis txhob siv cov iav tiv thaiv laser txuas ntxiv uas tau ncaj qha irradiated los ntawm lub teeb muaj zog laser lossis puas lawm.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.