Blue Light Hazards of Vertical LED Classroom Lights
Chav kawm teeb pom kev zoomuaj kev cuam tshuam loj rau cov tub ntxhais kawm qhov pom kev noj qab haus huv thiab kev kawm tau zoo. Vertical LED teeb, vim lawv lub zog ua tau zoo dua qub thiab kev ua neej ntev dua, tau maj mam hloov cov teeb fluorescent. Txawm li cas los xij, LED teeb qhov chaw muaj qhov feem ntau ntawm cov teeb xiav. Kev raug mob ntev ntev ntawm lub teeb xiav yuav ua rau pom kev qaug zog thiab tsis tsaug zog zoo, thiab vim tias cov tub ntxhais hluas muaj lub lens transmittance siab, qhov no tuaj yeem ua rau kev loj hlob ntawm myopia.
Lub teeb xiav yog hais txog lub teeb pom kev nrog wavelengths nyob rau hauv thaj tsam ntawm 400-500 nm, muaj lub zog siab thiab luv wavelength. Nws lub cev txhais muaj xws li ib tug nqaim txhais thiab ib tug dav txhais. Lub ntsiab lus nqaim yog hais txog lub wavelength ntawm 400-460 nm, tshwj xeeb yog xa mus rau lub zog loj xiav-violet lub teeb (415-455 nm) uas muaj peev xwm ua rau lub retina puas. Qhov wavelength no tuaj yeem nkag mus rau lub lens thiab ncav cuag lub macula, ua rau cov tshuaj tiv thaiv oxidation photochemical.
Ua ntej lub teeb pom kev zoo nrog lub teeb xiav peak wavelengths qis dua 430 nm lossis siab dua 480 nm, zam qhov siab -kev pheej hmoo wavelength ntau ntawm 430-480 nm (yog tias cov koob tshuaj xiav xiav tswj tau nyob rau hauv RG0 txwv, nws kuj tuaj yeem siv yam xyuam xim). Lub teeb xiav teeb meem ntawm chav kawm linearLED teebyog kev txhawj xeeb. Los ntawm kev xaiv qis-xiav- qhov chaw teeb pom kev zoo, siv qhov tsim teeb pom kev zoo, siv qhov muag- tiv thaiv cov teeb pom kev zoo, thiab tswj lub sijhawm siv, qhov teeb meem xiav xiav tuaj yeem txo qis, tiv thaiv cov tub ntxhais kawm qhov muag pom kev noj qab haus huv thiab txhim kho kev kawm.
