LED Wavelength Vs LED Xim
Dab tsi yog wavelength?
Wavelength yog siv los sib txawv xim, UV thiab IR LEDs, tab sis tsis yog LEDs dawb. Lub wavelength ntawm LED yog txiav txim los ntawm cov khoom siv semiconductor siv hauv nws. Thaum xaiv koj lub LED, tus nqi wavelength yuav muab koj lub tswv yim ntawm cov xim ntawm lub teeb nws yuav tawm mus.
Xaiv ib qho xim LED
Cov lus piav qhia xim tuaj yeem ua yuam kev, tshwj xeeb yog cov xim tshiab hloov zuj zus. Lawv feem ntau muaj cov npe nrov xws li "xiav-xiav" (puas yog ntshav liab?). Lwm qhov teeb meem tuaj yeem yog, tom qab xaj cov txiv kab ntxwv LEDs rau koj lub vaj huam sib luag ntsuas, koj teeb nws thiab nws zoo li liab. Qhov no yog vim hais tias LED muaj lub wavelength siab dua, tej zaum nyob ib ncig ntawm 625nm. Qhov zais cia feem ntau nyob hauv cov lus siv, xws li "Teeb", "Deep" thiab "Hyper", tab sis qhov ntawd tsis yog qhov zoo tshaj plaws los ntawm. Siv tus nqi wavelength muab rau hauv nanometers (nm) thiab muab piv rau daim duab xim:
Lub wavelength yuav qhia koj cov xim ntawm lub teeb LED, tab sis kuv tseem yuav siv qhov "sim ua ntej koj yuav" mus kom ze. Tsis txhob mus tom ntej nrog kev tsim khoom loj ua ntej koj tau pom nws zoo li tus neeg. Xav txog tias nws zoo li pleev xim rau chav tsev, koj ib txwm sim ua tus qauv ua ntej, txawm tias ib puag ncig nws tuaj yeem hloov pauv nws yuav zoo li cas.
Lenses - tinted los yog ntshiab?
Lwm qhov yuav tsum tau xav txog yog xim ntawm lub pob LED lossis lub lens. Blue LEDs tuaj yeem muaj lub lens xiav tinted lossis lub lens tsis muaj xim. Ib qho kev txiav txim siab tseem ceeb ntawm no yog qhov koj xav kom LED tshwm sim thaum nws tawm. Nto mount LEDs feem ntau muaj pob dawb; Txawm li cas los xij qee qhov muaj pob dub uas ua rau siab dua rau / tawm qhov sib txawv, zoo rau siv hauv cov lus qhia.
Dawb LEDs
Raws li tau hais ua ntej, LEDs dawb tsis tuaj yeem sib txawv los ntawm wavelength. Lawv tshwm sim "txias", "nruab nrab" lossis "sov" dawb vim lawv cov xim kub, ntsuas hauv Kelvin (K).
