Illuminance thiab uniformity standard rau Chaw nres tsheb teeb pom kev zoo
Tam sim no cov lus pom zoo tsim los ntawm Illuminating Engineering Society of North America (IESNA) rau qhov chaw nres tsheb teeb pom kev zoo muaj nyob rau hauv qhov tseeb version ntawm RP-20 (2014).
Teeb pom kev zoo
Illuminance qhov tseem ceeb uas phim cov yam ntxwv ntawm lub cev thiab lub teeb pom kev tshwj xeeb ntawm qhov chaw nres tsheb yuav tsum tau txiav txim siab. RP-20 muab cov lus pom zoo.
Kev tsis sib xws
Teeb pom kev zoo uniformity (tshwj xeeb rau tib neeg kev xaav ntawm cov teeb pom kev zoo sib xws ntawm cov teeb pom kev zoo thoob plaws hauv qhov chaw nres tsheb) yog qhia raws li qhov piv ntawm qhov siab tshaj plaws teeb pom kev zoo mus rau qhov tsawg kawg nkaus teeb pom kev zoo. Qhov kev pom zoo tam sim no IESNA yog 15: 1 (txawm tias 10: 1 feem ntau yog siv). Qhov no txhais tau hais tias thaum ntsuas hauv ib cheeb tsam ntawm qhov chaw nres tsheb, nws qhov illuminance yog 15 npaug ntawm lwm qhov chaw.
Ib qho piv txwv ntawm 15: 1 lossis 10: 1 yuav tsis tsim cov neeg feem coob hu ua teeb pom kev zoo. Qhov no yuav ua rau qhov kaj thiab tsaus nti ntawm qhov chaw nres tsheb. Qhov tsis sib xws no yuav ua rau cov neeg uas taug kev hauv lub tsheb xav tias tsis muaj kev nyab xeeb. Tsis tas li ntawd, cov chaw tsaus ntuj no tuaj yeem txhawb nqa tus cwj pwm tsis raug cai.
Qhov tsis muaj qhov sib xws ntawm cov teeb pom kev zoo yog qhov ua haujlwm ntawm HID cov teeb pom kev zoo siv hauv chaw nres tsheb. HID teeb tsim lub teeb los ntawm arc ntawm tungsten electrodes hauv arc raj. Lub arc raj tuaj yeem suav tau tias yog qhov chaw teeb pom kev zoo. Lub luminaire tsim redirects lub teeb mus rau qhov xav tau kev faib tawm. Qhov tshwm sim feem ntau yog teeb pom kev siv hluav taws xob siab lossis siab siv lub teeb ncaj qha hauv qab HID teeb, tab sis nyob rau hauv qhov tsaus ntuj ntawm ib lub teeb thiab lwm qhov.
Nrog lub advent ntawm LEDs, qhov teeb meem ntawm uniformity nyob rau hauv qhov chaw nres tsheb teeb pom kev zoo yuav daws tau nyob rau hauv ib txoj kev uas nyuaj los yog tsis yooj yim sua ua ntej HID. Piv nrog HID teeb, LED teeb inherently muab siab dua uniformity. Lub teeb tawm los ntawm LED teeb tsis yog tsim los ntawm ib qho chaw teeb pom kev zoo (xws li HID), tab sis los ntawm ntau qhov sib cais LEDs. Thaum siv LED teeb, qhov tseeb no feem ntau tso cai rau qhov qis tshaj plaws-tsawg yam tsis sib xws.
