Pehea e hoʻoholo ai inā pale ʻia nā makaaniani UV?

Makaanianianime ka pale ʻana o UV ma muli o ka hoʻohui ʻana o kahi uhi kūikawā ma nā lens, a ʻaʻole hiki i nā makaaniani haʻahaʻa ke pale i nā kukuna UV, akā hoʻemi nui hoʻi i ka transmittance o nā lens, e hoʻonui ai i nā haumāna, a e hoʻopiʻi ʻia nā kukuna ultraviolet i ka nui. , e poino ai na maka..No laila i kēia lā,IionaʻO ka optical e lawe iā ʻoe e hoʻomaopopo: pehea e ʻike ai inā pale ʻia nā maka aniani i ka pale UV?

Hana 1. E nānā i ka lepili o nā aniani.

ʻIke ʻia nā hōʻailona ʻike ʻia e like me "UV protection", "UV400", etc.makaaniani.ʻO ka "UV index" ka hopena o ke kānana ʻana i nā kukuna ultraviolet, he mea nui ia no ke kūʻai ʻana i nā aniani.ʻO ka mālamalama me ka lōʻihi o ka nalu o 286nm-400nm i kapa ʻia ke kukui ultraviolet.Ma keʻano laulā, hikiʻole i ka 100% UV index.ʻO ka helu UV o ka nui o nā makaaniani ma waena o 96% a me 98%.

ʻO nā aniani me ka hana anti-ultraviolet ka mea maʻamau i kēia mau ala kikoʻī:

a) E kaha "UV400": 'o ia ho'i, 'o 400nm ka lō'ihi hawewe o ka lens i ka malamalama ultraviolet, 'o ia ho'i, 'o ka τmax (λ) ka nui o ka transmittance spectral ma ka hawewe (λ) ma lalo o 400nm 'a'ole i 'oi aku. 2%;

b) E kaha i ka "UV" a me ka "UV protection": 'o ia ho'i, 'o 380nm ka lō'ihi o ka hawewe o ka lens i ka ultraviolet, 'o ia ho'i, ka waiwai nui loa τmax(λ) o ka transmittance spectral ma ka hawewe (λ) ma lalo o 380nm. ʻaʻole iʻoi aku ma mua o 2%;

c) E kaha "100% UV absorption": 'O ia ho'i, he 100% ka lawe 'ana o nā kukuna ultraviolet i ka lens, 'o ia ho'i, 'a'ole i oi aku ka nui o kona 'awelika ma ka laula ultraviolet ma mua o 0.5%.

ʻO nā makaaniani e hoʻokō i nā koi i luna aʻe, ʻo ia nā aniani e pale aku i nā kukui ultraviolet i ke ʻano maoli.

Kaʻina 2. E hoʻohana i ka peni panakō e nānā i ka hōʻoia

I ka loaʻa ʻole o nā mea kani, hiki i nā poʻe maʻamau ke ʻike inā loaʻa i nā aniani ka pale UV.E lawe i kahi waihona kālā, e kau i ka lens makaaniani ma luna o ka wai anti-hoʻopunipuni, a lawe i ke kiʻi ma ka lens me kahi mea ʻike kālā a i ʻole kahi ʻike kālā.Inā hiki iā ʻoe ke ʻike i ke kaha wai, ʻo ia hoʻi, ʻaʻole kūpaʻa nā aniani i ka UV.Inā ʻaʻole hiki iā ʻoe ke ʻike, ʻo ia hoʻi, pale ʻia nā makaaniani UV.

No ka hōʻuluʻulu ʻana i nā mea i luna: ʻO ke ala 2 kahi hōʻoia o kamakaanianie hōʻailona ma ke ʻano 1. Hiki ke ʻike ʻia inā pololei ka lepili o ka mea kūʻai aku a inā he anti-ultraviolet ka hana o nā aniani.Ke kūʻai aku nei i nā aniani aniani, hiki iā ʻoe ke hoʻāʻo iā lākou.Ma ke kaʻina o ke kūʻai ʻana a me ke kāʻei ʻana, inā he nīnau kāu, e ʻoluʻolu e ʻimi no ka ʻike pili.