Dab tsi yog cov txiaj ntsig ntawm qhov muag tiv thaiv teeb
Nws paub zoo tias cov menyuam yaus Suav tau ris lub nra rau hauv tsev kawm ntawv. Lawv mus kawm ntawv tag ib hnub thiab ntsib tej pawg ua homework tom qab rov los tsev. Tam sim no hais tias cov menyuam yaus nrog khoos phis tawj tau kawm dhau los hauv Is Taws Nem, ntau lub ntsiab lus tau sib xyaw ua ke. Hauv ib hmos, qhov muag poob qis. Raws li kev txheeb cais, tus naj npawb ntawm myopia ntawm cov tub ntxhais kawm theem pib thiab theem nrab tau mus txog 80%. Myopia tsis tsuas yog ua rau cov me nyuam tsis yooj yim' lub neej niaj hnub, tab sis tseem ceeb tshaj, nws yuav cuam tshuam rau lawv txoj kev tawm. Vim tias qee txoj haujlwm tsis tso cai rau myopia, ntxiv rau, astigmatism, glaucoma, thiab cataracts kuj nce zuj zus tuaj. Hauv qhov xwm txheej no, nws yog ib qho tseem ceeb heev uas yuav tsum nrhiav kev ntsuas zoo los tiv thaiv koj tus menyuam' lub qhov muag, thiab lub qhov muag tiv thaiv teeb yog qhov kev xaiv zoo rau koj.
1. Los ntawm lub teeb pom kev, xim yog mos thiab yuav tsis ua mob rau lub qhov muag. Kev siv lub teeb ci qhov muag tiv thaiv lub teeb tseem tuaj yeem zam lub zog poob; los ntawm qhov ntsuas kub ntawm qhov pom, LED qhov muag tiv thaiv lub teeb yuav pom tau ntev, thiab qhov kub yuav tsis siab heev. Qhov no qhia tau hais tias lub tshav kub dissipation nyhuv ntawm LED qhov muag tiv thaiv teeb yog zoo heev, kev nyab xeeb yog heev, thiab nws yuav tsis ua rau muaj kev huam yuaj.
2. Lub zaus hloov hluav taws xob ballast yog siv los ua kom cov hluav taws xob ntau zaus ntawm 50Hz mus rau 30-50kHz, thiab lub teeb hloov me me vim yog cov nyhuv tom qab ntawm phosphor, yog li tib neeg lub qhov muag tsis hnov lub strobe txhua, thiab lub teeb siv peb xim thawj. Phosphors ua rau lub teeb maj mam, thiaj li txo qhov muag nkees.
3. Lub qhov muag tiv thaiv teeb yog siv nrog tsis muaj flicker, tsis muaj flicker, tsis muaj qhov muag nkees, tag nrho cov hlau zoo nkauj, elegant thiab classic. Siv high-brightness thiab low-light-decay LED thaj ua rau thaj, low-voltage DC12V switching tas tam sim no tsav, tsis flicker, tsis muaj hluav taws xob. Qhov tshwj xeeb polarizing zaj duab xis lub teeb qhia kev siv tshuab tuaj yeem ua rau cov teeb pom kev zoo ntawm LED nyob rau hauv qhov nruab nrab kev taw qhia yam tsis muaj glare thiab dazzling, tiv thaiv myopia.
Lub zog ntawm lub qhov muag tiv thaiv teeb
Niaj hnub no, thaum cov me nyuam nyeem cov me nyuam' cov phau ntawv dab neeg, cov niam txiv feem ntau xaiv lub rooj teeb, thiab lub rooj teeb yog ib qho khoom siv teeb pom kev zoo hauv tsev neeg niaj hnub no. Nws tsuas yog tsom rau cov teeb ci hauv thaj chaw me me, uas yooj yim rau kev ua haujlwm thiab kawm. Raws li kev txheeb cais, qhov nruab nrab tus menyuam hnub nyoog 6 xyoo hauv kuv lub tebchaws siv li 2-3 teev hauv qab lub rooj teeb txhua hnub, thiab qhov deb ntawm lub hlwb thiab lub rooj teeb yog feem ntau tsuas yog 30-40 cm, thiab World Health. Lub koom haum soj ntsuam daim ntawv tshaj tawm hais tias tus nqi hluav taws xob ntawm lub teeb pom kev siab tiv thaiv qhov muag Nws yog 40UT-400UT.
Tus nqi no ntau dua li lub teb chaws tus qauv ntawm 0.12UT. Hauv lwm lo lus, tus menyuam raug hluav taws xob ntau dhau ntawm lub sijhawm ze txog li 3 teev hauv ib hnub, thiab nws suav nrog ze li 1,000 teev hauv ib xyoos. Tshwj xeeb, nws tau taw qhia tias lub hlwb ntawm cov tub ntxhais hluas tsis paub tab, thiab nws yuav ua rau kev puas siab puas ntsws ntawm cov hluas rau lub sijhawm ntev. Txawm li cas los xij, vim muaj kev ua homework ntau dhau ntawm peb lub teb chaws cov tub ntxhais kawm theem pib thiab theem nrab, lawv sau ntawv nyob ze rau lub sijhawm ntev, uas ua rau qhov muag qaug zog thiab txhawb kev tsis pom kev. Raws li kev txheeb cais, 66% ntawm cov tub ntxhais kawm theem pib thiab theem nrab hauv kuv lub tebchaws raug kev txom nyem los ntawm myopia ntawm ntau qib. Yog li ntawd, txhawm rau tswj lub zeem muag, peb yuav tsum xaiv lub teeb zoo li cas yog thawj qhov teeb meem uas peb yuav tsum tau ntsib, txawm tias nws yog tus menyuam hnub nyoog 3-6 xyoo, Cov neeg ntawm txhua lub hnub nyoog yuav tsum tiv thaiv lawv ob lub qhov muag.
