Txawm hais tias nws yog LED teeb lossis lub teeb txuag hluav taws xob, txhua tus muaj nws qhov zoo thiab qhov tsis zoo
Qhov laj thawj tseem ceeb yog lub zog siab-yoj luv-yoj xiav lub teeb hauv LED teeb.
Lub teeb dawb tso tawm los ntawm lub teeb LED feem ntau yog nyob ntawm lub teeb xiav ntawm 450-455nm wavelength los ua kom muaj zog phosphor, thiab qhov qis dua lub wavelength, lub zog hluav taws xob. Feem ntau lub wavelength ntawm LED teeb qhov chaw yog tswj nyob rau hauv 500nm, feem ntau 450-455nm los yog 455-460nm, uas yog ib tug kuj muaj zog kis tau tus mob wavelength band. Yog hais tias lub wavelength loj dua, lub peev xwm ua kom cov phosphor txo qis, thiab lub zog luminous yuav txo. Txhawm rau kom ua raws li qhov ci ntsa iab, qee cov tuam ntxhab feem ntau nce lub teeb xiav siv ntawm LED teeb qhov chaw. Yog hais tias tib neeg lub qhov muag saib ntawm lub teeb pom kev zoo li lub sijhawm ntev, lub qhov muag yuav raug mob los ntawm lub teeb xiav.
Tsis tas li ntawd, qhov ntev ntawm lub teeb LED yog qhib, qhov ntau dua qhov attenuation ntawm phosphor nyob rau hauv lub teeb ci, uas yuav ua rau lub teeb xiav yuav ua rau muaj kev kub ntxhov ntau dua, uas yuav ua rau tib neeg lub qhov muag. Yog li ntawd, yog tias lub qhov muag saib ntawm lub teeb ci LED tau ntev, qhov kev xav tsis zoo thiab tsis xis nyob yuav tshwm sim, thiab txawm tias qhov muag puas yuav tshwm sim, uas ua rau muaj feem ntau ntawm qhov muag. Yog li, tsis txhob' tsis txhob ntsia ntawm lub teeb ci LED uas ci dhau lub sijhawm ntev. [2]
Lub teeb txias dawb tshaj tawm los ntawm qee lub teeb LED yog khaus heev (cov xim kub ntawm lub teeb yog siab dhau). Kev nyeem ntawv hauv qab no yuav ua rau koj ob lub qhov muag dazzling thiab ua rau pom kev qaug zog. Vim li cas qhov no? Qhov tseeb, thaj chaw daj nyob rau hauv tib neeg lub qhov muag, thaj chaw macular muaj nyias retina, ntom pigment epithelial hlwb, thiab ntom capillaries qab lub retina nrog tsis muaj zog reflections, yog li cov xim yog tsaus liab. Rau cov menyuam yaus, cov xim yog reddish xim av. Qhov siab tshaj plaws yog lub teeb daj es tsis yog lub teeb dawb. Qhov no yog qhov laj thawj tseem ceeb vim li cas kev nyeem ntawv thiab sau ntawv hauv qab lub teeb daj yuav hnov zoo thiab xis nyob, thaum nyob hauv lub teeb dawb nws yuav hnov dazzling lossis qaug zog.
Electromagnetic teeb liab
Lub teeb fluorescent siv hluav taws xob rectifiers: Txawm hais tias hom teeb fluorescent no ua rau tsis pom qhov muag liab qab, lawv tsim hluav taws xob cuam tshuam ntawm 30-50kHz.
Ntau" qhov muag tiv thaiv teeb" nyob rau hauv kev ua lag luam yog tiag tiag fluorescent teeb uas siv hluav taws xob rectifiers. Yuav kom muab tso ncaj, lawv yog lub teeb txuag hluav taws xob. Nws lub ntsiab feature yog tsis flicker, uas yog txheeb ze rau fluorescent teeb. Lub teeb tiv thaiv qhov muag siv lub tshuab hluav taws xob ntau zaus los kho qhov zaus tam sim no mus rau 30k-50kHz, thiab lub teeb ci ntsa iab nrawm heev; thiab vim yog cov nyhuv tom qab ntawm phosphor, lub teeb hloov pauv tau txo qis, yog li tib neeg lub qhov muag tsis xav tias lub teeb ci txhua. Nws zoo li ruaj khov. Tab sis nruj me ntsis hais lus, lub teeb txuag hluav taws xob tsis yog dawb ntawm flicker, tab sis me me amplitude thiab siab flicker. Nws yog tus yam ntxwv no uas lub teeb nws tshaj tawm yog ruaj khov thiab xis dua li cov teeb fluorescent. Txawm li cas los xij, high-frequency electronic rectifiers tsim high-frequency electromagnetic signals.
Rau cov khoom lag luam fluorescent kom ua tiav" tsis muaj flicker thiab tsis muaj hluav taws xob cuam tshuam teeb liab", qhov no yog qhov nyuaj, thiab nws kuj yog lub ntsiab lus nyuaj hauv ntiaj teb.
Cov ntsiab lus: Txawm hais tias nws yog LED teeb lossis lub teeb txuag hluav taws xob, txhua tus muaj nws qhov zoo thiab qhov tsis zoo. Rau cov tsev neeg dav dav, sim xaiv lub teeb sib xyaw kom tsis txhob muaj qhov tsis zoo ntawm ib qho teeb pom kev zoo. Tsis tas li ntawd, seb lub" qhov muag tiv thaiv teeb" tiv thaiv lub qhov muag los yog tsis yog nyob ntawm qhov tseem ceeb ntawm txoj kev siv lub teeb, tsis yog lub teeb nws tus kheej. Feem ntau, lub teeb lub teeb yuav tsum tsis txhob siab dhau kom tsis txhob pom qhov muag lossis lub teeb lub rooj zaum tsaus dhau; lub teeb lub teeb yuav tsum tsis txhob qis dhau, txwv tsis pub lub tabletop teeb muaj zog heev thiab nws tsis zoo rau qhov muag. Yog tias koj tuaj yeem' tsis paub meej tias qhov ci ntawm lub teeb puas tsim nyog, koj tuaj yeem siv tus cwj mem tiv thaiv qhov muag los ua qee qhov kev sim.
