Maererano nekufungidzira kweWorld Health Organization (WHO), nhamba yevanhu vane myopia ndeyechikurupakati pevanhu vane maziso ehurwere, uyezvaitakusvikaed2.6 bhiriyoni muna 2020. Myopia yave dambudziko guru repasi rose, kunyanya zvakakombamuAsia. The myopia rate muChina i47.1%, inenge hafu yehuwandu hwevanhu.Rinoreva imwepavanhu vaviri voga voga anoona zviri pedyo.
Myopia Rate munyika dzakasiyana
Mazuvano,pamwekuwedzera kwakakosha kweyero myopia, chiyero chekupfekamagirazi ari kuwedzerawo gore negore.Seimwe yemyopicvarwere,have iweakateerera chinhu chachoskuti dekugumisalens quality kana uchifungazisokupfeka dhizaini uye lens basa?
Ngatidzidze chimwe chinhuinokoshat nezve thelens zvinhu uye refractive index.
Lens yakanaka inoda kufanana,transmittanceuye kujeka. Tiye anonyanya kuzivikanwa lenzi nhasi mhedzisiro yemakore ekuongorora.
| Kuvandudzwa kwezvinhu zve lens Mazhinji ekutanga lenses akagadzirwa nemaoko neakasikwa zvinhu zvakaita sequartz nekristaro. Nekuvandudzwa kwekugadzirwa kwegirazi uye tekinoroji yeindasitiri, zvinhu zvakasikwa zvakakurumidza kutsiviwa negirazi remaziso iro rakatanga kupa mamwe mabasa. Kubva kuma1960 kusvika kuma1980s, resin zvinhu, zvakagadzirwa kubva mupetroleum, zvakatsiva girazi kune zvaro zviri nani zvemaziso, kuchengetedzwa kwakachengeteka uye kutetepa kwemuviri zvimiro, uye kuve chinhu chikuru chegirazi remaziso kusvika zvino. |
Seyakanyanya kufarirwa lens zvinhu pamusika, resin zvinhu zvinomiririrwa neCR-39 resin yakagadziriswa nePPG, MR resin yakagadziriswa naMitsui,uyeKR resin yakagadzirwa neKOC, Korea, nezvimwe.
Iyo lens zvinhu inosarudza iyo refractive index ye lens. Lens refractive index ndiyo chiyero chekumhanya kwechiedza chekuparadzira muvacuum kune chiedza chekuparadzira kukurumidza mune lens zvinhu, zvichiratidza kugona kwekuramba kwelens kuchiedza. Kazhinji kutaura, iyo yakakwira iyo refractive index ye lens, iyo lens yakatetepa.
Parizvino,Universe Opticaline refractive index ye1.50, 1.53, 1.56, 1.60, 1.67, 1.74 nezvimwe.indexes oflenzi. Panyaya yezvishandiso, takachengeta kudyidzana kwepedyo nePPG yeUnited States uye Mitsui Chemical yekuJapan.naizvozvowomamwe makambani ezvekushandisa ane budiriro huru.
CR-39 raw material yakatengwa kubva kuPPG, USA, inoshandiswa kugadzira refractive index 1.50 lens.Inofarirwa zvakanyanya pamusika bnekuda kweiyo yakakwirira Abbe coefficient, yakanakisa optical performance, kuchengetedza kuitauyeinodhura-inoshanda.
Iyo 1.53 refractive index lens inotorwa kubva kune yakakosha zvinhu, Trivex, zvakare kubva kuPPG kuUS. Trivex lens zvinhu zvakanyanya kukanganisa-resistant. Nekuti iwo akareruka kupfuura akajairwa lenzi, Trivex lenzi ndizvokugona chosesarudzo yezvipfeko zvemaziso zvevana, zvipfeko zvemaziso zvisina rimless, magirazi emitambo, zvipfeko zvemaziso ekuchengetedza, uye zvipfeko zvemaziso zvemitambo.
With thekusimukira of magirazi, iyo "lens", sechinhu chikuru chegirazi, inogara ichivandudza nekuvandudza nekuchinja kwenguva.UniverseOptical 1.60, 1.67, 1.74highindexlens raw materials anogadzirwa neMR akatevedzana eMitsui Chemical. MR serieszvinhu zvemhando yepamusoro uye zvemhando yepamusoro, zvine yakakwira refractive index, yakakwira Abbe nhamba, yakaderera chaiyo giravhiti, yakakwira kukanganisa kuramba uye zvimwe zvakanakira.
Iko kuenderera mberi kwekuvandudza kwema lens zvinhuR&Duye tekinorojiboost thelens chigadzirwasinnovation. The lens mbishi zvinhusarudza iyokugadzikanazvemhando, transmittance, kujeka uye maitiro ekuona.
UniverseOptical yanga ichiomerera kune iyo mutemo wekuhwina-kuhwina kushandirapamwe uye kubudirira pamwe chete. Isuteerera inzwi revatengi,kuzivamutengis'zvinodiwa, teerera kumusikatendency, so askugadzira chiono chakajeka.