Wahi a nā manaʻo o ka World Health Organization (WHO), ʻo ka nui o nā poʻe e loaʻa ana i ka myopiaka nui loai waena o ka poʻe me nā maka olakino, aua loaahiki akued2.6 biliona ma 2020. Ua lilo ʻo Myopia i pilikia nui o ka honua, koʻikoʻi koʻikoʻima Asia.ʻO ka helu myopia ma Kina he 47.1%, kokoke i ka hapalua o ka heluna kanaka.ʻO ke ʻano hoʻokahimai loko mai o kēlā me kēia ʻelua kanaka he ʻike maka.
Ka helu Myopia ma nā ʻāina like ʻole
I kēia mau lā,meka piʻi nui o ka myopia rate, ka wikiwiki oʻaʻahuKe piʻi nei nā aniani i kēlā me kēia makahiki.E like me kekahi o kaʻāʻīnā maʻi, haoehoʻolohe i ke kumuskēlā dehoopau i kamaikaʻi o ka lens i ka wā e noʻonoʻo aimakahoʻohana i ka hoʻolālā a me ka hana lens?
E aʻo kāua i kekahi meamea nuit pili ana kamea lens a me ka huahelu refractive.
Pono ka lens maikaʻi i ka kūlike,ka hoʻouna ʻanaa maopopo.Ua ʻōlelo ʻo TʻO ka lens maʻamau i kēia lā ka hopena o nā makahiki o ka ʻimi ʻana.
| ʻO ka hoʻomohala ʻana i nā mea lens ʻO ka hapa nui o nā lens mua loa i hana ʻia e ka lima me nā mea kūlohelohe e like me ka quartz a me ke aniani.Me ka hoʻomohala ʻana o ka hana aniani a me ka ʻenehana ʻenehana, ua hoʻololi koke ʻia nā mea kūlohelohe e ke aniani optical i hoʻomaka e hāʻawi i nā hana hou aku.Mai ka makahiki 1960 a hiki i ka makahiki 1980, ua hoʻololi nā mea resin, i hana ʻia mai ka ʻaila mai, i ke aniani no kona mau mea ʻoi aku ka maikaʻi, ka hana palekana a me nā waiwai kino lahilahi, a lilo i mea nui o nā aniani aniani a hiki i kēia manawa. |
Ma ke ʻano he mea lens kaulana loa i ka mākeke, hōʻike ʻia nā mea resin e CR-39 resin i hoʻomohala ʻia e PPG, MR resin i hoʻomohala ʻia e Mitsui,aHoʻokumu ʻia ka resin KR e KOC, Korea, etc.
Hoʻoholo ka mea lens i ka helu refractive o ka lens.ʻO ka huaʻōlelo hoʻohālikelike ʻo Lens ka lākiō o ka wikiwiki hoʻolaha māmā i loko o ka vacuum a me ka wikiwiki hoʻolaha māmā i nā mea lens, e hōʻike ana i ka hiki ke refraction o ka lens i ka māmā.ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka refractive index o ka lens, ʻoi aku ka lahilahi o ka lens.
I kēia manawa,Universe OpticalLoaʻa iā ia ka index refractive o 1.50, 1.53, 1.56, 1.60, 1.67, 1.74 a me nā mea ʻē aʻe.na kuhikuhi onā leka uila.Ma ke ʻano o nā mea, ua hoʻomau mākou i ka launa pū ʻana me ka PPG o ʻAmelika Hui Pū ʻIa a me Mitsui Chemical o Iapanaa ʻo kekahinā ʻoihana makaʻala ʻē aʻe me nā hoʻokō koʻikoʻi.
CR-39 mea maka i kūʻai ʻia mai PPG, USA, hoʻohana ʻia e hana i nā lens refractive 1.50.ʻOi aku ka makemake ma ka mākeke because o kona kiʻekiʻe Abbe coefficient, maikaʻi optical hana, palekana hanaaʻoi aku ka maikaʻi o ke kumukūʻai.
Loaʻa ka 1.53 refractive index lens mai kahi mea kūikawā, Trivex, mai PPG hoʻi ma US.ʻO nā mea lens Trivex he mea pale i ka hopena.No ka mea ʻoi aku ka māmā ma mua o nā lens maʻamau, ʻo nā lens Trivexmaikaʻi loakoho no nā maka maka o nā keiki, nā maka rimless, nā makaʻala haʻuki, nā maka maka palekana, a me nā maka haʻuki.
Me kahooulu ana of ka makaaniani, ka "lens", e like me ka mea hoohana nui o na makaaniani, e hana hou ana a hoonui me ka loli o ka manawa.UniverseOptical 1.60, 1.67, 1.74kiʻekiʻekuhikuhiHana ʻia nā mea maka lens me ka MR series o Mitsui Chemical.MR moʻoʻO nā mea kiʻekiʻe a me nā mea kiʻekiʻe, me ka index refractive kiʻekiʻe, ka helu Abbe kiʻekiʻe, haʻahaʻa haʻahaʻa haʻahaʻa, ke kūpaʻa hopena kiʻekiʻe a me nā pono ʻē aʻe.
ʻO ka hoʻomaikaʻi mau ʻana o nā mea lensR&Ka me ka ʻenehanahooikaika i kahuahana lenssmea houion.ʻO nā mea maka lenshoʻoholo i kakūpaʻao ka maikai, transmittance, akaka a me ka hopena ʻike.
UniverseUa hoʻopili ʻo optical i ke kulekele o ka hui win-win a me ka hoʻokō like.mākoue hoʻolohe i ka leo o nā mea kūʻai aku,e ikemea kūʻais'pono, e makaala i ka makekemanaʻo, pela noe hana i ka ike maopopo.