Illuminance meter thiab luminance meter kev sib raug zoo ntawm illuminance thiab brightness
Kev sib raug zoo ntawm illuminance thiab brightness pom los ntawm illuminance meter thiab luminance meter:
Nyob rau hauv peb lub neej niaj hnub, peb ib txwm raug rau lub teeb, thiab thaum nws los txog rau lub teeb, peb yuav tham txog qhov kaj thiab ci.
Yog li dab tsi yog qhov txawv ntawm brightness thiab illuminance?
Lub tswv yim ntawm illuminance pom los ntawm illuminance meter:
Nyob rau hauv luv luv, tag nrho cov nqi ntawm lub teeb emissions los ntawm lub teeb (luminous flux) nkag mus rau hauv ib tug tej yam nto txheej nrog ib tug tej yam kev siv - luminous siv (luminous siv), thiab ces lub luminosity ntawm no nto txheej yuav ntsuas.
Lub tswvyim ntawm brightness ntsuas los ntawm ib tug luminance meter:
Brightness yog hais txog lub cev kom muaj nuj nqis ntawm lub teeb (reflection) siv ntawm qhov chaw ntawm lub cev luminous (reflector). Tib neeg lub qhov muag pom lub teeb ci los ntawm ib qho kev taw qhia. Qhov sib piv ntawm lub teeb siv hauv qhov kev taw qhia no rau qhov siv ntawm tib neeg lub qhov muag "pom" thaj chaw teeb pom kev zoo txhais tau tias yog qhov ci ntsa iab ntawm chav tsev teeb pom kev zoo, uas yog, luminous siv ntawm chav tsev nthuav dav. Thaum peb sawv ntawm ib qho chaw thiab saib ntawm ib qho chaw, peb pom qhov ci ntsa iab (brightness) ntawm qhov chaw.
Piv txwv li: illumination yog lub hom phiaj parameter. Nws yog tag nrho cov teeb pom kev zoo uas peb siv cov cuab yeej los kuaj pom tias tau ncav cuag ib qho chaw; brightness yog hais txog theem ntawm lub teeb emitted los yog reflected los ntawm ib yam khoom pom los ntawm tib neeg lub qhov muag.
Tsis tas li ntawd, tus nqi teeb pom kev zoo tib yam txawm tias qhov chaw yog xim dub lossis dawb, ntoo lossis pob zeb. Qhov saum npoo yuav cuam tshuam lub teeb, txawm tias specularly los yog ntau dua diffusely. Lub teeb yog refracted nyob rau hauv ntau cov lus qhia nyob rau hauv qhov chaw.
Dab tsi cuam tshuam qhov illumination thiab brightness rau peb lub neej?
Nws tuaj yeem hais tau tias txhua qhov chaw teeb pom kev zoo sab hauv tsev yuav tsum ntsuas cov kab rov tav teeb pom kev zoo ntawm qhov chaw ua haujlwm, tab sis peb yuav tsum tau them sai sai rau kev hloov kho ntawm lub teeb pom kev zoo thiab xim kub. Piv txwv li, hauv peb txoj haujlwm, nws tsis txaus los hloov xim ntawm lub teeb chaw ua haujlwm, tab sis peb kuj yuav tsum tau xyuam xim rau lub teeb pom kev zoo.
▲ High illumination thiab qis xim kub yuav ua rau tib neeg kub siab, thaum lub teeb pom kev tsawg thiab xim kub yuav ua rau tib neeg xav tias tsaus muag thiab nkees, ua rau txo qis hauv kev ua haujlwm.
Cov kev ntsuam xyuas cuam tshuam qhia tau tias tib lub sijhawm ntawm 300lx thiab 500lx, raws li qib illumination nce, cov neeg ua haujlwm txaus siab yuav nce ntxiv; ntawm 500lx, cov neeg ua haujlwm qhov kev txaus siab yog qhov yooj yim saturated, thiab qhov nce ntawm cov teeb pom kev zoo yuav tsis cuam tshuam cov neeg ua haujlwm kev ntsuam xyuas ntawm qhov chaw teeb pom kev zoo. Yog li ntawd, Tuam Tshoj txoj kev teeb pom kev zoo tshaj plaws hauv chaw ua haujlwm yog 300 lx-500 lx, uas kuj yog qhov zoo tshaj plaws illumination rau qhov chaw ua haujlwm.
Tsis tas li ntawd, nyob rau hauv qhov chaw noj mov, yuav tsum muaj lub teeb txaus nyob rau hauv ib puag ncig sab hauv tsev thiab ntawm lub rooj noj mov kom tau raws li qhov xav tau ntawm cov neeg siv khoom noj. Raws li cov lus pom zoo ntawm Tuam Tshoj teeb pom kev zoo Association nyob rau hauv Tuam Tshoj tus architectural teeb pom kev zoo tsim qauv, 200 lx yog tsim nyog rau lub rooj noj mov teeb pom kev zoo.
