1. Ndi mitundu yanji ya zida zamagalasi zomwe zilipo?
Zida zachilengedwe: mwala wa kristalo, kuuma kwakukulu, kosavuta kugaya, kumatha kufalitsa cheza cha ultraviolet, ndipo kumakhala ndi birefringence.
Zipangizo zopanga: kuphatikiza magalasi osakhazikika, magalasi achilengedwe ndi utomoni wa kuwala.
Magalasi a inorganic: Amasungunuka kuchokera ku silika, calcium, aluminiyamu, sodium, potaziyamu, ndi zina zambiri, mowonekera bwino.
Plexiglass: Zomwe zimapangidwa ndi polymethyl methacrylate.
Utomoni wa kuwala: Zomwe zimapangidwa ndi propylene diethylene glycol carbonate. Ubwino wake ndi kulemera kopepuka, kukana mphamvu, kuponyera akamaumba, ndi utoto wosavuta.
2. Kodi ubwino ndi kuipa kwa magalasi a resin ndi chiyani?
Ubwino: kulemera kopepuka, kosalimba, kopanda m'mphepete kapena ngodya zikathyoka, zotetezeka
Zoyipa: magalasi osavala amakhala okhuthala ndipo mtengo wake ndi wokwera pang'ono
3. Kodi lens ya bifocal ndi chiyani?
Magalasi omwewo ali ndi kuwala kuwiri, kuwala kwapamwamba ndi malo akutali, ndipo kuwala kwapansi ndi pafupi.
4. Kodi ma lens a multifocal ndi ati?
Magalasi amatha kuona kutali, pakati ndi mtunda waufupi, wopanda msoko, wokongola, kwa achinyamata kuti athe kulamulira myopia, odwala azaka zapakati ndi okalamba omwe ali ndi presbyopia angapangitse moyo kukhala wosavuta.
5. Kodi disolo lowumitsidwa ndi chiyani?
Kuumitsa, monga momwe dzinalo likusonyezera, kumatanthauza kuti mandala ndi ovuta kuposa magalasi wamba. Ma lens owumitsidwa ali ndi kukana kwambiri kuvala. Mfundo yake ndi yakuti pamwamba pa mandala amadzazidwa ndi mankhwala apadera owumitsa tinthu tating'onoting'ono towonjezera kukana kwa lens ndikutalikitsa moyo wautumiki. .
Nthawi yotumiza: Oct-26-2021