Ngokwesilinganiso seWorld Health Organisation (WHO), inani labantu abaphethwe yi-MyopiaomkhuluPhakathi kwabantu abanamehlo aphansi kwezempilo, futhiinefikaed2.6 billion ngo-2020. I-Myopia isiphenduke inkinga enkulu yomhlaba, ikakhulukazi sinae-Asia. Izinga laseMyOPIA eChina lingama-47.1%, cishe isigamu sabantu bonke.Kusho eyodwaKubo bonke abantu ababili kuseduze.
Izinga le-myopia emazweni ahlukene
Kulezi zinsuku,ne-ukwanda okukhulu kwezinga i-myopia, izinga leegqokileIzibuko nazo ziyanda unyaka nonyaka.Njengomunye weiklophicIziguli, have wenawanaka isicislokhotermine theIkhwalithi yelensi lapho ecabangaihloWear Design and Lens umsebenzi?
Ake sifunde okuthileinthovat le khasiI-Lens Material and Reusauding Index.
Ilensi enhle idinga ukufana,ukudluliselanokucacisa. TI-lens evamile namuhla ingumphumela weminyaka yokuhlola.
| Ukuthuthukiswa kwezinto zelensi Iningi lamalensi okuqala lenziwa ngesandla ngezinto zemvelo ezifana ne-quartz ne-crystal. Ngokuthuthukiswa kokukhiqizwa kwengilazi kanye nobuchwepheshe bezimboni, izinto zemvelo zathathelwa indawo ngokushesha ngengilazi ye-optical eyaqala ukunikeza imisebenzi eminingi. Kusukela ngawo-1960s kuya kuma-1980s, izinto zokwakha, ezenziwe ngengilazi, zithathe indawo yezakhiwo zayo ezingcono kakhulu, ukucubungula okuphephile kanye nokusebenza okuyinhloko kwe-eyeglass lens kuze kube manje. |
Njenge-lens ethandwa kakhulu emakethe, izinto zokuhlala kabusha zimelelwa ikakhulukazi yi-CR-39 resin ezakhiwe yi-PPG, Mnu Resin athuthukiswe yiMitsui,na-I-KR Resin yathuthukiswa yiKoc, Korea, njll.
Izinto zelensi zinquma inkomba yelensi. I-Lens Deactive Index yisilinganiso sejubane lokusakazeka kokukhanya ku-Vacuum ukulula Ngokuvamile, kukhuphuka inkomba evulekayo yelensi, omncane welensi.
Okwamanje,I-Universal OpticalInkomba eyesiko le-1.50, 1.53, 1.56, 1.60, 1.67, 1.74 nezinyeizinkomba zeamalensi. Ngokuya kwezinto zokwakha, sigcine ukubambisana okuhle kwe-PPG ye-United States kanye neMitsui Chemical of Japankanye neEzinye izinkampani ezisetshenziswayo ze-Resers ezinempumelelo evelele.
CR-39 Izinto ezingavuthiwe ezithengiwe kusuka ku-PPG, e-USA, zisetshenziselwa ukwenza inkomba eyi-1.50 lens.Ithandwa kakhulu emakethe bI-Aboase Yokusebenza Kwayo Okuphezulu Kwama-ABBE, Ukusebenza okuhle kakhulu kwe-Optical, Ukusebenza Kwezokuphephana-kubiza kakhulu.
Ilensi ye-Index eyi-1.53 ye-1.53 itholakala kokuqukethwe okukhethekile, i-Trivex, futhi kusuka ku-PPG e-US. I-Trivex lens impahla imelana nomthelela omkhulu kakhulu. Ngoba zilula kunelensi ejwayelekile, ama-trivex lenskuhle kakhuluUkuzikhethela kwe-eyewear yezingane, i-Eyewear enobuhle, ama-googges ezemidlalo, ama-eyewear ezokuphepha, kanye ne-helletic eyewear.
Ngeukuthuthukiswa oF Izibuko, "ilensi", njengesengezo esikhulu sezibuko, zihlale ziqala futhi zithuthuka ngokushintsha kwezikhathi.Umhlaba wonke kanye nezuluI-Optical 1.60, 1.67, 1.74-phezuluinto ekhombayoIzinto zokwenziwa zelensi zenziwe ngoMnu uchungechunge lweMitsui Chemical. MR Serieszisezingeni eliphakeme nezinto ezithuthukisiwe, ezinenkomba evulekayo ephakeme, inombolo ephezulu ye-ABBE, amandla aphansi aphansi, ukumelana nomthelela omkhulu nezinye izinzuzo.
Ukuthuthuka okuqhubekayo kwezinto zelensiR & DnobuchwepheshekhuthazaUmkhiqizo we-lenssisendithaneihhashi. Izinto zokusetshenziswa zelensinquma i-qinisazekhwalithi, ukudluliselwa, ukucaca nokubonakalayo okubonakalayo.
Umhlaba wonke kanye nezuluI-Optical ibibambe iqhaza kwinqubomgomo yokubambisana nokuwina kokuwina kanye nokuphumelela. ThinaLalela izwi lamakhasimende,Funa ukwaziikhasimendes'Izidingo, unake imaketheimvamisa, Ngakho keukwakha umbono ocacile.