Koj yuav tsum nkag siab txog qhov ua tau zoo ntawm qhov muag tiv thaiv teeb
Thaum xaiv lub qhov muag tiv thaiv teeb, tau kawg, nws nyob ntawm seb nws puas muaj qhov muag tiv thaiv. Ntau tus neeg tsuas paub tias stroboscopic thiab xiav lub teeb yuav cuam tshuam rau qhov muag tiv thaiv, tab sis qhov tseeb, xim kub, xim rendering thiab illumination kuj tseem ceeb rau kev tiv thaiv qhov muag. muaj hwj chim.
1. Xim kub
Color temperature is a unit of measurement that indicates the color components contained in light, and the unit of measurement is "K" (Kelvin). Color temperature refers to the color of an absolute black body after it is heated from absolute zero. After the black body is heated, it will gradually change from black to red, yellow, white, and finally emit blue light.
Cov xim kub ntawm lub teeb ci yog muab faib ua xim kub (hauv qab 3300K), nruab nrab xim kub (3300-5300K) thiab xim kub kub (siab tshaj 5300K). Cov xim tsis muaj xim kub lub teeb yog daj thiab haum rau so; cov xim kub kub lub teeb ci yog dawb thiab zoo siab; qhov nruab nrab xim kub lub teeb qhov chaw yog softer thiab haum rau kev nyeem ntawv thiab kawm.
Yog li ntawd, nws yog qhov zoo tshaj rau peb mus yuav lub qhov muag teeb pom kev zoo nrog cov xim kub ntawm 4000-5000K, kom cov menyuam tuaj yeem nyeem ntawv thiab kawm thaum hmo ntuj uas tsis muaj kev puas tsuaj rau lub qhov muag.
2. Xim rendering
Xim rendering yog hais txog qib uas lub teeb muaj peev xwm rov qab tau cov xim ntawm cov khoom, thiab xim rendering Performance index (Ra) yog ib qho tseem ceeb qhia los ntsuas cov xim rendering. Cov xim rendering Performance index nqi ntawm 1 txog 100, thiab chav tsev yog Ra. Qhov ze dua cov xim rendering Performance index yog 100Ra, qhov zoo dua qhov kev kho kom zoo ntawm cov xim ntawm cov khoom, qhov tseeb ntau xim, thiab qhov zoo ntawm qhov teeb pom kev zoo.
If the color rendering is unqualified, the child will unconsciously approach the book when reading at night, which will damage the eyes and cause myopia. Therefore, it is best to choose a desk lamp with a color rendering index of 80 and above when purchasing a desk lamp. Such a desk lamp can be very good. Restore book colors and fonts without damaging children's eyesight.
3. Teeb pom kev zoo
Illuminance yuav tsum xav txog seb qhov ci ntsa iab puas tsim nyog thiab seb qhov ntau npaum li cas. Lub teeb muaj zog heev yuav ua rau cov menyuam kawm ntawv ntsws thiab ua rau lub qhov muag puas. Nyob rau tib lub sijhawm, lub teeb pom kev zoo yuav tsum tau muab sib npaug, txwv tsis pub cov ntawv sau yuav tsis yooj yim nyeem, thiab cov tub ntxhais kawm yuav raug hloov kho tsis nco qab, yog li ua rau lub nra ntawm lub qhov muag. Cov teeb pom kev zoo tshaj plaws tsuas yog tsim tau yog tias lub teeb muaj zog thiab sib npaug sib npaug.
my country's national standard "performance requirements for reading and writing desk lamps" stipulates two illumination levels: A-level and AA-level. A-level desk lamps require that the illumination should be higher than 150lx within 50 cm from the core area of the light, and at least 30 cm away from the core area. 250lx. The AA-level table lamp is twice that of the A-level table lamp, that is, the illumination within 50 cm from the core area of the light should be higher than 300lx, and at least 500lx at a distance of 30 cm.
