Puas yog luminous flux zoo ib yam li lumens?
Puas yog luminous flux zoo ib yam li lumens?

Video: Puas yog luminous flux zoo ib yam li lumens?

Video: Puas yog luminous flux zoo ib yam li lumens?
Video: Tuag ua Dab los yuav cab kom tau 14.11.2018 2024, Kaum ib hlis
Anonim

Luminous flux txawv ntawm lub zog (radiant flux ) hauv qhov ci ntsa iab ntawd flux suav nrog txhua qhov hluav taws xob hluav taws xob tawm, thaum luminous flux yog qhov hnyav raws li tus qauv (a " luminosity muaj nuj nqi ") ntawm tib neeg lub qhov muag rhiab heev rau ntau yam wavelengths. Lumens muaj feem xyuam rau lux nyob rau hauv uas ib tug lux yog ib tug lub lumen ib square meter.

Raws li, lub teeb ci ntsa iab txhais li cas?

Luminous flux yog ntsuas qhov ci ci ntawm a lub teeb qhov chaw hais txog lub zog raug tso tawm. Luminous flux SI SI units, yog ntsuas nyob rau hauv lub lumen (lm).

Ib yam li ntawd, lub teeb ci li 750 lumens? Txhawm rau pab koj kom tau txais lub tswv yim ntawm lub lumen scale, tus qauv 60-watt teeb tso tawm ib ncig 750 -850 lub lumens ntawm lub teeb Yog tias koj xaiv qhov muag teev rau teeb pom kev ua haujlwm, nrhiav qhov muag nrog 1000 lub lumens lossis ntau dua.

Ib yam nkaus, tib neeg nug, pes tsawg lumens nyob hauv Lux?

Lux yog ib chav ntsuas ntawm lub teeb uas qhov chaw kuj raug coj mus rau hauv tus account. 1lux ua 1 Lumen /m2, ua lwm yam lus - kev siv lub teeb nyob hauv ib cheeb tsam tshwj xeeb. Lux yog siv los ntsuas tus nqi ntawm lub teeb tso zis hauv ib cheeb tsam. Ib lux yog sib npaug rau ib lumn ib square meter.

SI unit ntawm luminous flux yog dab tsi?

Cov SI chav ntawm cov teeb pom kev zoo yog lumen (lm). Ib lub lumen yog txhais raws li luminous flux ntawm lub teeb tsim los ntawm lub teeb ci uas emits ib lub candela ntawm luminous siv zog hla lub kaum ntse ntse ntawm ib tus steradian. Hauv lwm qhov system units , luminous flux tej zaum muaj chav nyob ntawm lub zog.

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