I. Nheyo yeMagirazi ePhotochromic
Munzanga yemazuva ano, sezvo kusvibiswa kwemhepo kuri kuramba kuchikura uye ozone layer ichikuvadzwa zvishoma nezvishoma, magirazi emaziso anowanzo sangana nezuva rine UV yakawanda. Magirazi ePhotochromic ane ma microcrystals e photochromic agents - silver halide ne copper oxide. Kana akasangana nechiedza chakasimba, silver halide inoora kuita sirivha ne bromine; makristaro madiki esirivha anoumbwa mukuita uku anoshandura magirazi kuita brown yakasviba. Kana chiedza chapera, sirivha ne bromine zvinobatanazve kuita silver halide pasi pe catalytic action ye copper oxide, zvichiita kuti magirazi aya avheneke zvakare.
Kana magirazi e photochromic akasvibirwa nemwaranzi ye ultraviolet (UV), kupenya kwawo kunobva kwasviba ukuwo kuchivharira kupinda kweUV, zvichidzivirira zvakanyanya UVA neUVB kuti zvisakuvadze maziso. Munyika dzakabudirira, magirazi e photochromic ave achizivikanwa kwenguva refu nevatengi vane hanya nehutano nekuda kwekubatsira kwavo pahutano, nyore, uye runako. Kuwedzera kwegore negore kwenhamba yevatengi vanosarudza magirazi e photochromic kwasvika manhamba maviri.
II. Kuchinja kwemavara ePhotochromic Lenses
Pamazuva ane zuva: Mangwanani, mhepo ine makore matete, izvo zvinoita kuti UV isavharidzike zvakanyanya, zvichiita kuti mwaranzi yakawanda yeUV isvike pasi. Nekuda kweizvozvo, malenzi ephotochromic anosviba zvakanyanya mangwanani. Manheru, simba reUV rinoderera—izvi zvinokonzerwa nekuti zuva riri kure nepasi, uye mhute inoungana masikati inovhara mwaranzi yakawanda yeUV. Saka, ruvara rwemalenzi runova rwakajeka panguva ino.
Pamazuva ane makore: Mwaranzi yeUV inogona kusvika pasi nesimba rakanyanya dzimwe nguva, saka magirazi ephotochromic anoramba akasviba. Mukati, anoramba akajeka zvishoma kana asina ruvara rwakawanda. Magirazi aya anopa dziviriro yakakwana yeUV nechiedza munzvimbo ipi neipi, achigadzirisa ruvara rwawo nekukurumidza zvichienderana nemamiriro echiedza. Kunyange zvazvo achichengetedza kuona, anopa dziviriro yehutano hwemaziso chero nguva, chero kupi.
Hukama netembiricha: Mumamiriro ezvinhu akafanana, tembiricha painokwira, ruvara rwemalenzi e photochromic runopenya zvishoma nezvishoma; zvakasiyana, tembiricha painodzikira, malenzi anosviba zvishoma nezvishoma. Izvi zvinotsanangura chikonzero nei ruvara rwacho rwuchipenya muzhizha uye rwuchisviba muchando.
Kumhanya kwekuchinja kwemavara uye kudzika kweruvara rwemavara zvine hukama hwakati neukobvu hwelenzi.
Nguva yekutumira: Nyamavhuvhu-28-2025