Lux vs. Lumens: Qhov txawv yog dab tsi?
Ib qho kev nkag siab tsis zoo yog tias lub teeb lub teeb ci yog txiav txim siab los ntawm nws cov wattage. Hauv kev muaj tiag, wattage ntsuas lub zog siv, tsis yog lub teeb tso zis. Yuav kom nkag siab tiag tiag qhov ci, koj yuav tsum tau saibua luxthiablumens.
Thaum muaj feem xyuam, lux thiab lumens ntsuas qhov sib txawv ntawm lub teeb thiab tsis hloov pauv. Ntawm no yog ib qho yooj yim tawg.
Lumens: Tag Nrho Lub Teeb Tso Tawm
Nws yog dab tsi: Lumens (lm)ntsuas tag nrho cov teeb pom kev pom tshwm los ntawm qhov chaw nyob hauv txhua qhov kev qhia. Qhov no hu ua "luminous flux."
Ntsiab Lus:Nws yog qhov ntsuas ntawm lub teebntawm qhov chaw. Tus nqi lumentsis hloov nrog kev ncua deb.
Analogy:Xav txog lumens raws li tag nrho cov dej tawm ntawm lub taub hau da dej. Nws yog tag nrho cov ntim ntawm lub teeb tsim.
Lux: Lub teeb ntawm qhov chaw
Nws yog dab tsi: Lux (Lx)ntsuas ntau npaum li cas ntawm lub teeb tiag tiag tsaws rau ntawm thaj chaw tshwj xeeb. Nws yog "illuminance."
Formula:1 lux=1 lumen per square meter (lm/m²).
Ntsiab Lus:Lux yog nyob ntawm tag nrhonrug thiab tsom. Tib qhov teeb pom kev zoo yuav tsim tus nqi lux ntau dua rau ntawm qhov chaw uas nyob ze rau nws, thiab tus nqi qis dua rau ntawm qhov chaw uas nyob deb.
Analogy:Yog tias lumens yog cov dej los ntawm lub taub hau da dej, lux yog qhov kev siv ntawm cov dej uas koj xav tau ntawm koj daim tawv nqaij. Yog tias koj txav los ze zog, qhov kev siv (lux) nce.
Qhov tseem ceeb sib txawv ntawm ib saib
| Feature | Lumens | Lux |
|---|---|---|
| Kev ntsuas | Tag nrho lub teebtso zislos ntawm qhov chaw | Teebtau txaisnyob rau saum npoo |
| Kev vam meej | Independent ntawm qhov deb lossis cheeb tsam | Kev vam meej heevnyob deb thiab beam angle |
| Siv Case | Muab piv rau qhov ci ntsa iab ntawm lub teebqhov muag teev | Kev txiav txim siab qhov ci ci siv tau hauv aqhov chaw lossis thaj chaw ua haujlwm |
Vim li cas Ob Qhov Metrics Tseem Ceeb
Kev nkag siab txog ob qho txiaj ntsig pab koj xaiv qhov teeb pom kev zoo rau txhua qhov xwm txheej.
Lumensqhia koj lub teeb lub peev xwm tag nrho.
Luxqhia rau koj seb qhov chaw tshwj xeeb yuav ci li cas.
Piv txwv:
Lub teeb 800-lumen lub rooj teeb yuav muab qib siab heev ntawm koj phau ntawv vim tias lub teeb ci ntsa iab thiab kaw. Tib lub 800-lumen qhov muag teev uas siv nyob rau hauv chav tsev loj, siab-qab nthab yuav hnov dim vim tias lub teeb tawg, ua rau cov qib qis qis thoob plaws hauv pem teb.
Tswv yim tswv yim:Thaum sib piv cov khoom uas sau lux (xws li tsom teeb lossis lub teeb ua haujlwm), nco ntsoov xyuas ntawm dab tsinyob debqhov ntsuas tau coj. Tus nqi lux tsis muaj qhov nrug yog ib daim duab tsis tiav.
