Ngaba uyayiqonda "i-lumen" ukuba isibane simele sazi?

Ekuthengweni kwengaphandleintlokoizibanekwayeukumisa inkampuIzibane zihlala zibona igama elithi "lumen", uyayiqonda?

Lumens = Iziphumo zokukhanya. Ngamazwi alula, lumens (obekwe yi-LM) ngumgangatho wenani elipheleleyo lokukhanya okubonakalayo (kwiliso lomntu) kwisibane okanye umthombo wokukhanya.

Okuninzingaphandleukumisa inkampuukukhanya, I-Headlimp okanye iFlashlightImigca zizibane ze-LED, ezisebenzisa amandla amancinci kwaye ke zinenqanaba le-Watt elingaphantsi. Oku kwenza ukuba ii-watts esasiqhele ukulinganisa ukukhanya kwe-bulb ukukhanya akusekho, ngoko abavelisi batshintshela kwi-Lumens.

ULumen, iyunithi yomzimba echaza i-flux yokukhanya, ihlawulwe "lm", imfutshane "ye" lumen ". Ixabiso eliphakamileyo le-lumen, iqaqambile ibhalbhu. Ukuba awuqinisekanga malunga neenombolo ze-lumen, eli tshathi ye-incandescent kwizibane ezikhokelayo zinokukunika isikhokelo. Oko kukuthi, xa ufuna ukukhokelwa kunokufezekisa isibane se-100w ye-quandesescent, khetha i-16-20w ikhokelele kwaye uyakukhokelela ekuqaqambekeni okufanayo.

Ngaphandle, ngokweentlobo ezahlukeneyo zemisebenzi ngokubanzi zifuna amanqanaba ahlukeneyo e-lumen, ungabhekisa kule datha ilandelayo: I-100 ~ 500 ye-lumen malunga nemvula yemvula okanye i-500 ye-lumen.

Lumka xa usebenzisaIzibane zentloko ngaphandle. Ukukhanya okuqaqambileyo kunokubangela ukonakala kwamehlo abantu.