Ka nānā ʻana i nā aniani

1. ʻO ke kumumanaʻo o ka lens UV transmittance detection

ʻAʻole hiki ke hana ʻia ke ana transmittance o nā aniani aniani ma ke ʻano he awelika maʻalahi o ka transmittance spectral i kēlā me kēia nalu nalu, akā pono e loaʻa ma ke kaupaona ʻana o ka transmittance spectral e like me ke kaumaha o nā nalu like ʻole.He ʻōnaehana optical maʻalahi ka maka kanaka.I ka loiloi ʻana i ka maikaʻi o nā aniani, pono e noʻonoʻo mua ʻia ka naʻau o ka maka o ke kanaka i ka radiation māmā o nā hawewe like ʻole.I ka pōkole, ua maʻalahi ka maka o ke kanaka i ka'ōmaʻomaʻo'ōmaʻomaʻo, no laila,ʻo ka transmittance o ka'ōmaʻomaʻo'ōmaʻomaʻo'ōmaʻomaʻo i mea nui i ka hoʻounaʻana i ke kukui o ka lens,ʻo ia hoʻi,ʻoi aku ka nui o ke kaumaha o ke kukui'ōmaʻomaʻo;ma ka ʻokoʻa, no ka mea, ʻaʻole pili ka maka o ke kanaka i ke kukui poni a me ke kukui ʻulaʻula, no laila ʻO ka transmittance o ke kukui poni a me ka ʻulaʻula he hopena liʻiliʻi i ka transmittance māmā o ka lens, ʻo ia hoʻi, ke kaumaha o ke kukui poni a liʻiliʻi nō hoʻi ka pūnaʻi ʻulaʻula.ʻO kahi ala kūpono e ʻike ai i ka hana anti-ultraviolet o nā lens, ʻo ia ka hoʻoholo ʻana a me ka nānā ʻana i ka transmittance o UVA a me UVB spectra.

2. Mea ho'āʻo a me nā ʻano hana

Hiki ke hoʻohana i ka spectral transmittance tester e ana i ka spectral transmittance o nā makaaniani aniani ma ka ʻāpana ultraviolet e hoʻoholo ai i ka maikaʻi o ka hoʻoiho ultraviolet o ka hāpana.Hoʻohui i ka mika transmittance spectral i ke awa serial kamepiula, hoʻomaka i ka papahana hana, hana i ka calibration kaiapuni ma 23 ° C ± 5 ° C (ma mua o ka calibration, pono e hōʻoia ʻia ʻaʻohe lens a kānana paha ka ʻāpana ana), a hoʻonohonoho i ka hoʻāʻo. ka lōʻihi o ka nalu i 280~480 nm, e nānā i nā kukuna ultraviolet o ka lens ma lalo o ke kūlana o ka hoʻonui ʻana i ka pihi transmittance.ʻO ka hope loa, e kau i nā lens i hoʻāʻo ʻia ma luna o nā pahu hoʻāʻo e hoʻāʻo ai i ka hoʻouna ʻana i ka māmā (noka: holoi i nā lens a me nā pahu hoʻāʻo ma mua o ka hoʻāʻo ʻana).

3. Nā pilikia i ke ana

I ka ʻike ʻana i nā aniani aniani, ʻo ka helu transmittance o ka hui ultraviolet e hoʻohana i kahi ala maʻalahi o ka averaging i ka spectral transmittance, i wehewehe ʻia ʻo ka awelika transmittance.No ka laʻana like ma lalo o ka hoʻāʻo ʻana, inā hoʻohana ʻia nā wehewehe ʻelua o QB2457 a me ISO8980-3 no ke ana ʻana, ʻokoʻa loa nā hopena o ka transmittance waveband ultraviolet.Ke ana ʻia e like me ka wehewehe ʻana o ISO8980-3, ʻo ka hopena i helu ʻia o ka transmittance i ka hui UV-B he 60.7%;a inā e ana ʻia e like me ka wehewehe ʻana o QB2457, ʻo ka hopena i helu ʻia o ka transmittance i ka hui UV-B he 47.1%.Ua ʻokoʻa nā hopena i ka 13.6%.Hiki ke ʻike ʻia ʻo ka ʻokoʻa o ka maʻamau kuhikuhi e alakaʻi pololei i ka ʻokoʻa i nā koi ʻenehana, a hopena i ka pololei a me ka objectivity o nā hopena ana.Ke ana ʻana i ka transmittance o nā huahana eyewear, ʻaʻole hiki ke mālama ʻia kēia pilikia.

ʻO ka transmittance o nā huahana aniani a me nā mea lens e hoʻāʻo ʻia a ʻike ʻia, a loaʻa ka waiwai kūpono e ka hoʻohui paona ʻana o ka spectral transmittance, a loaʻa nā hopena o nā pono a me nā hopena o nā huahana sunglasses.ʻO ka mea mua, pili ia inā hiki i ka mea o ka lens ke pale i nā kukui ultraviolet, UVA a me UVB, a hiki ke hoʻouna i nā kukui ʻike ʻia e hoʻokō i ka hana anti-glare.Ua hōʻike ʻia nā hoʻokolohua ʻoi aku ka maikaʻi o ka hoʻoili ʻana o nā lens resin, a ukali ʻia e nā aniani aniani, a ʻo nā aniani aniani ka mea ʻino loa.ʻOi aku ka maikaʻi o ka hoʻoili ʻana o nā lens CR-39 ma waena o nā lens resin ma mua o PMMA.