Dab tsi yog Ultraviolet Lim?

Kev siv hauv kev yees duab, lub lim zeb ultraviolet feem ntau yog ib txoj hlua zoo meej uas ntsaws rau qhov kawg ntawm lub koob yees duab lens. Lawv siv los lim tawm ultraviolet rays uas yuav ua rau sab nraum zoov photography mus saib hazy thiab xiav. Feem ntau cov koob yees duab lens tau txais lub UV lim, nrog rau video, digital thiab movie cameras. Cov ntxaij lim dej no feem ntau tsis yog siv rau ntawm qhov taw-thiab-tua cov koob yees duab nrog lo ntsiab muag.

Txawm tias ultraviolet lub teeb tsis tuaj yeem pom nrog tib neeg qhov muag, qee cov noog thiab noog tau pom nws - thiab thiaj ua tau lub koob yees duab. Nyob rau hauv cov xwm txheej nyob sab hauv tsev no tsis yog qhov teeb meem, tab sis nyob rau sab nraum zoov photography UV teeb yuav ua rau muaj duab tsis yog nkig thiab muaj ib qho kev tshawb nrhiav indigo. Yuav zam tau qhov no, lim ultraviolet siv tau los pab nqus ultraviolet rays, ntxiv clarity thiab txo extraculate hues.

Tsis tsuas yog ultraviolet teeb ntau dua ntawm ib qho teeb meem nyob rau hauv sab nraum zoov chaw tshaj sab hauv tsev, nws cuam tshuam zaj duab xis ntau dua nws cov counterparts. Tseem, ultraviolet lim tau pab tau rau ob zaj duab xis thiab digital koob yees duab. Hauv cov digital photography, cov lim dej ultraviolet kuj pab thaiv teeb meem xim uas muaj lub npe hu ua ntshav ntses - ib kab ntsig yeeb yam zoo li kab ib ncig ntawm cov duab.

Qhov lim ultraviolet lim yog ntshiab thiab cov ntxaij lim dej tawm luv luv wavelength UV -B thiab UV- C xob, thaum yuav luag tag nrho kom pom lub teeb. Vim li no, cov ntxaij lim dej no yuav tsum tau nyob rau ntawm kev txhaj tshuaj. Ultraviolet cov ntxaij lim dej muab kev pab ntxiv ntawm kev tiv thaiv kev lens zoo li; Yog hais tias lub lens poob, lub lim yuav nqus qhov kev puas tsuaj es tsis yog lub lens. Nws tseem yuav pab kom lub lens huv si thiab dawb ntawm khawb los ntawm kev ntxuav tsev; nws feem ntau yog pheej yig dua los hloov cov xim lim khawb ultraviolet dua lub lens scratched lub koob yees duab.

Muaj qee tus lim dej ultraviolet uas lim cov dej ntau dua los yog ntau dua ultraviolet muaj peev xwm txiav tawm ib co pom lub teeb nyob rau hauv lub violet ib feem ntawm cov xim spectrum, ua rau daj ntxim rau duab. Txawm li ntawd los, lawv ua haujlwm zoo tshaj ntxiv rau kev tiv thaiv ntshav liab. Vim li ntawd, siv cov xim lim ultraviolet no yuav tsum tau qee cov xim nyiaj thaum tua duab lossis thaum yees duab ua.