Ma lens opanga ma spectacle omwe amasintha ma lens omaliza kukhala ma lens omalizidwa molingana ndi momwe amalembera.
Ntchito yosinthira makonda a labotale imatipangitsa kuti titha kupereka mitundu ingapo ya kuphatikiza kwa kuwala kwa zosowa za omwe avala, makamaka pankhani yokonza presbyopia. Ma Laboratories ali ndi udindo wowonekera (kupera ndi kupukuta) ndi kuyanika (kupaka utoto, anti-scratch, anti-reflective, anti-smudge etc.) ma lens.
Crystal Vision (CR) ndi magalasi apamwamba kwambiri opangidwa ndi imodzi mwamakampani akulu kwambiri padziko lonse lapansi.
CR-39, kapena allyl diglycol carbonate (ADC), ndi polima pulasitiki yomwe imagwiritsidwa ntchito popanga magalasi agalasi.
Chidulechi chikuyimira "Columbia Resin #39", yomwe inali njira ya 39th ya pulasitiki ya thermosetting yopangidwa ndi pulojekiti ya Columbia Resins mu 1940.
Zokhala ndi PPG, izi zikusintha kupanga mandala.
Theka lolemera ngati galasi, silingathe kusweka, ndipo mawonekedwe ake amaoneka ngati galasi.
CR-39 imatenthedwa ndikutsanuliridwa muzoumba zamagalasi zowoneka bwino - kusintha mawonekedwe agalasi kwambiri.
a) Zachuma
b) Kuwala
c) Kusamva kusweka
d) Ikhoza kupangidwa ndi utoto komanso wokutidwa
e) Chitetezo cha UV
Lens yaulere nthawi zambiri imakhala ndi malo ozungulira kutsogolo ndi kumbuyo kovutirapo, katatu komwe kumaphatikizapo malangizo a wodwala. Pankhani ya lens yopita patsogolo yaulere, geometry yakumbuyo yakumbuyo imaphatikizapo mapangidwe opita patsogolo.
Njira yaulere imagwiritsa ntchito ma lens ozungulira omaliza omwe amapezeka mosavuta mumitundu yambiri yokhotakhota ndi ma indices. Ma lens awa amapangidwa molondola kumbali yakumbuyo pogwiritsa ntchito zipangizo zamakono zopangira ndi kupukuta kuti apange malo enieni a mankhwala.
• Kutsogolo kuli malo osavuta ozungulira
• kumtunda kumbuyo ndi zovuta zitatu-dimensional pamwamba
• Amapereka kusinthasintha kuti apereke mitundu yambiri yazinthu zapamwamba, ngakhale za labotale yaying'ono
• Zimangofunika kuchuluka kwa magawo omwe amalizidwa pang'ono muzinthu zilizonse kuchokera kugwero lililonse labwino
• Kasamalidwe ka labu ndi kosavuta ndi ma SKU ochepa kwambiri
• Malo opita patsogolo ali pafupi ndi maso - amapereka malo owoneka bwino mukhonde ndi malo owerengera
• Imachulutsanso bwino lomwe mamangidwe omwe akupita patsogolo
• Kulondola kwamankhwala sikumangotengera zida zomwe zimapezeka mu labotale
• Kukonzekera bwino kwamankhwala ndikotsimikizika