Qhov feem ntau siv rau kev ntsuasLED teeb siv zog(feem ntau hu ua illuminance, piv txwv li lub brightness ntawm lub illuminated nto) yog siv ib tug lux meter. Nov yog cov lus qhia ntxaws ntxaws thiab ceev faj:
1. Cov cuab yeej tseem ceeb: Lux meter
Txoj Cai:
Lub lux meter ntsuas lub luminous flux tau txais ib cheeb tsam (unit: Lux=lumen/square meter lm/m²), uas yog raws li qhov rhiab heev ntawm tib neeg lub qhov muag kom pom lub teeb.
Siv tau scenarios:
Cov ntawv thov txhua hnub xws li teeb pom kev zoo sab hauv tsev, rooj teeb ci ci, tso saib backlight, thiab lwm yam.
2. Kev ntsuas cov kauj ruam
Npaj ib puag ncig:
Tua lwm qhov chaw teeb kom tsis txhob cuam tshuam.
Cia lub LED teeb preheat rau 10-15 feeb (lub teeb tso zis txawv nrog kub).
Teeb lub lux meter:
Xaiv qhov ntau (xws li 0 ~ 50,000 Lux).
Paub meej tias cov cuab yeej txhawb nqa LED spectrum kho (xyuas seb phau ntawv qhia puas cim nrog "f₁"<5%" or "Class L").
Tso lub sensor:
Teem lub taub hau ntawm lub ntsuas hluav taws xob vertically rau lub teeb ci LED thiab muab tso rau ntawm qhov chaw ntsuas (xws li lub desktop lossis phab ntsa).
Qhov kev ncua deb ntawm lub taub hau sensor thiab LED yuav tsum tau kho (qhov ntau dua qhov kev ncua deb, qhov qis dua qhov illuminance).
Nyeem cov ntaub ntawv:
Khaws nws ruaj khov rau 3 ~ 5 vib nas this thiab sau tus nqi ruaj khov.
Siv tus nqi nruab nrab ntawm ntau qhov kev ntsuas (txo qhov yuam kev).
III. Cov ntsiab lus tseem ceeb
Qhov cuam tshuam nrug:
LEDs muaj zog directionality. Thaum qhov kev ncua deb yog ob npaug, qhov illuminance poob rau 1/4 (inverse square law).
Piv txwv li: 1000 Lux ntsuas ntawm qhov deb ntawm 10 cm → txog 250 Lux ntawm 20 cm.
Lub kaum sab xis calibration:
Lub taub hau sensor yuav tsum tau perpendicular rau lub teeb (tilts yuav ua yuam kev).
Professional illuminance meters yuav tsum tau txhawb kev kho cosine (kom tiv nrog oblique teeb meem teeb).
Spectral sib piv:
Pheej yig illuminance meters yuav underestimate xiav lub teeb / txias dawb LEDs (lub tib neeg lub qhov muag tsis tshua rhiab rau xiav lub teeb).
Kev daws: Xaiv lub ntsuas ntsuas nrog "Class L" lossis "CIE spectral teb".
3. Cov txheej txheem ntsuas qib siab
Kev ntsuas lub hom phiaj Cov cuab yeej Siv tau cov xwm txheej
Tag nrho cov luminous flux (lumens) Kev sib xyaw ua ke + spectrometer LED teeb / raj Hoobkas kuaj
Beam angle siv (candela) Distributed photometer Directional lighting design xws li tsheb teeb thiab tsom teeb
Spectral fais fab faib Spectral radiometer Cog kev loj hlob teeb, kev kho mob lub teeb qhov chaw tshawb fawb thiab kev loj hlob
💡 Cov neeg siv ib txwm tsis xav tau cov cuab yeej no tshwj tsis yog lawv koom nrog kev kho qhov muag.
4. Lwm txoj kev daws teeb meem (txoj kev yooj yim)
Mobile APP illuminance meter (xws li "Lux Light Meter"):
Qhov zoo: dawb thiab yooj yim.
Disadvantages: tsawg raug (yuam kev ntau tshaj ± 20%), rau siv xwb.
Txoj kev sib piv:
Siv cov teeb ci LED uas paub tsis meej (xws li 500 lm cim rau ntawm pob) kom irradiate ntawm tib qhov deb thiab sib piv qhov sib txawv ntawm qhov ci.
5. Kev to taub yuam kev
❌ Siv "wattage (W)" los ntsuas qhov ci: wattage tsuas yog sawv cev rau kev siv lub zog, thiab qhov ci ntawm LEDs nrog tib lub wattage yuav txawv ntawm 2 zaug!
❌ Tsis quav ntsej LED qhov kub thiab txias: Lub LED ua haujlwm ntev dua, qhov qis dua qhov ci ntsa iab (lub teeb lwj), thiab ntsuas lub xeev txias tsis raug.
📌 Tswv yim: Calibrate lub ntsuas ua ntej ntsuas (siv txheem lub teeb los yog xa mus rau ib tug kws tshaj lij lub tsev)!
Yog tias koj xav tau ntsuas tag nrho cov luminous tso zis (lumens) lossis spectrum ntawm LED, nws raug nquahu kom xa nws mus rau chav kuaj (tus nqi yog li 300 ~ 1000 / sijhawm). Lub lux meter yog kiag li txaus rau kev siv txhua hnub! rau ntau lux siv, thov mus saib http://www.benweilight.com
