1. Luminous Flux (F)
Cov txiaj ntsig ntawm lub zog tawm los ntawm lub teeb ci thiab tau txais los ntawm tib neeg lub qhov muag yog lub luminous flux (unit: lm (lumen)). Feem ntau, qhov siab dua lub zog ntawm tib hom teeb, qhov ntau dua qhov luminous flux. Piv txwv li, lub luminous flux ntawm 40 zoo tib yam incandescent teeb yog 350-470Lm, thaum lub luminous flux ntawm ib tug 40W zoo tib yam ncaj raj fluorescent teeb yog hais txog 28001m, uas yog 6 ~ 8 zaus ntawm incandescent teeb.
2. Luminous Intensity (I)
Lub luminous flux emitted los ntawm lub teeb qhov chaw nyob rau hauv ib chav tsev lub kaum ntse ntse nyob rau hauv ib tug muab kev taw qhia yog hu ua lub luminous siv ntawm lub teeb qhov chaw nyob rau hauv cov kev taw qhia, thiab indirectly hu ua lub luminous siv (unit yog cd (candela)), 1cd = 1m / 1s .
3.Illuminance (E)
Lub luminous flux tau txais ib chav tsev ntawm illuminated cheeb tsam yog hu ua illuminance (unit yog 1x (lux), uas yog, 11x = 1lm / m². Nyob rau lub caij ntuj no yog hais txog 20001x, thiab hauv av illuminance ntawm lub hli ntshiab yog hais txog 0.2lX.
4.Luminance (L)
Lub ci ci ntawm lub teeb ci nyob rau hauv ib qho kev taw qhia, chav tsev yog nt (nits), yog lub luminous flux emitted los ntawm chav tsev projected cheeb tsam thiab unit khoom lub kaum sab xis ntawm lub teeb qhov chaw nyob rau hauv cov kev taw qhia. Yog tias txhua yam khoom raug suav tias yog lub teeb ci, ces qhov ci ntsa iab piav qhia Lub ci ci ntawm lub teeb ci, thiab qhov illuminance tsuas yog kho txhua yam khoom raws li lub teeb pom kev zoo. Siv lub rooj ntoo los ua piv txwv. Thaum ib lub teeb ntawm lub teeb tsoo lub rooj tsavxwm ntoo, nws yog hu ua lub teeb ci ntau npaum li cas lub rooj tsavxwm muaj, thiab lub teeb pom kev ntau npaum li cas los ntawm lub rooj tsavxwm rau tib neeg lub qhov muag, nws hu ua qhov ci ntsa iab ntawm lub rooj tsavxwm, uas yog, qhov ci ntsa iab. yog sib npaug rau qhov illuminance multiplied los ntawm reflectivity, nyob rau hauv tib qhov chaw nyob rau hauv tib chav tsev, ib daim ntaub dawb thiab ib daim ntawm lub illuminance ntawm lub lag luam dub yog tib yam, tab sis lub brightness yog txawv.
5.Luminous efficiency ntawm lub teeb Source
Qhov piv ntawm tag nrho cov luminous flux tawm los ntawm lub teeb ci rau lub zog hluav taws xob (w) siv los ntawm lub teeb ci yog hu ua Luminous efficiency ntawm lub teeb ci, thiab chav tsev yog lumens / watt (Lm / W)
6.Xim kub (CCT)
Thaum cov xim ntawm lub teeb emissions los ntawm lub teeb qhov chaw nyob ze rau cov xim radiated los ntawm lub cev dub ntawm ib tug tej yam kub, qhov kub ntawm lub cev dub yog hu ua xim kub (CCT) ntawm lub teeb qhov chaw, thiab chav tsev yog K. Lub teeb qhov chaw nrog cov xim kub hauv qab 3300K muaj xim liab thiab ua rau tib neeg muaj kev sov siab. Thaum cov xim kub siab tshaj 5300K, cov xim yog xiav thiab ua rau tib neeg lub siab txias. Feem ntau, cov teeb pom kev zoo nrog cov xim kub siab dua 4000K yog siv rau hauv cov cheeb tsam uas muaj qhov kub thiab txias. Hauv qhov chaw qis dua, siv lub teeb ci hauv qab 4000K.
7.Xim Rendering Index (Ra)
Ob lub hnub ci thiab incandescent teeb radiate ib tug nruam spectrum. Cov khoom qhia lawv cov xim tiag tiag nyob rau hauv irradiation ntawm lub hnub ci loj thiab cov teeb pom kev zoo, tab sis thaum cov khoom raug teeb pom kev los ntawm cov teeb pom kev tsis tu ncua, cov xim yuav muaj qhov sib txawv ntawm qhov sib txawv, qhov degree ntawm lub teeb ci mus rau qhov tseeb xim ntawm cov khoom. ua cov xim rendering ntawm lub teeb qhov chaw. Txhawm rau kom suav cov xim rendering ntawm lub teeb ci, lub tswv yim ntawm cov xim rendering Performance index yog qhia. Raws li cov qauv teeb pom kev zoo, cov xim rendering Performance index yog txhais raws li 100. Cov xim rendering Performance index ntawm lwm yam teeb pom kev zoo yog qis dua 100. Cov xim rendering Performance index yog qhia los ntawm Ra. Qhov loj dua tus nqi, qhov zoo dua qhov xim rendering ntawm lub teeb ci.
8.Nruab Nrab Lub Neej
Qhov nruab nrab lub neej ncua yog hais txog cov sij hawm uas 50% ntawm cov teeb nyob rau hauv ib pawg ntawm cov teeb ci thaum lawv puas.
9.Kev lag luam lub neej
Kev lag luam lub neej yog hais txog tus naj npawb ntawm cov sij hawm thaum cov kab hluav taws xob sib xyaw ua ke raug txo qis rau ib qho piv txwv, suav nrog kev puas tsuaj ntawm lub teeb thiab qhov attenuation ntawm lub teeb tawm. Qhov piv yog 70% rau qhov chaw teeb pom kev sab nraum zoov thiab 80% rau qhov chaw teeb pom kev hauv tsev.
10.Luminous Efficiency
Lub luminous efficiency ntawm lub teeb ci yog hais txog qhov sib piv ntawm cov luminous flux tawm los ntawm lub teeb ci mus rau lub zog hluav taws xob P siv los ntawm lub teeb ci.
11.Dazzle teeb
Thaum muaj cov khoom ci ntsa iab heev hauv qhov pom, nws yuav pom qhov tsis xis nyob, hu ua dazzle light. dazzle lub teeb yog ib qho tseem ceeb cuam tshuam rau qhov zoo ntawm lub teeb qhov chaw.
Koj puas meej tam sim no? Yog tias koj muaj lus nug, tsis txhob yig tiv tauj nrog Liper.
Post lub sij hawm: Dec-03-2020
