1. Lub lens PC yog dab tsi?
PC yog ib qho kev ua tau zoo ntawm cov thermoplastic engineering yas, nws yog tsib engineering plastics hauv qhov pom zoo ntawm cov khoom, tab sis kuj nyob rau xyoo tas los no kev loj hlob sai ntawm cov yas engineering yas.Tam sim no, nws yog dav siv nyob rau hauv optics, electronics, architecture, tsheb, kev kho mob thiab lwm yam, tshwj xeeb tshaj yog rau zus tau tej cov tsom iav.

2. Vim li cas lawv thiaj hu ua qhov chaw lo ntsiab muag?
POLYCARBONATE (PC) yog cov khoom tsim los ntawm cov kws tshawb fawb los ua cov cuab yeej tshawb nrhiav chaw tsim nyog rau qhov chaw tshwj xeeb ntawm qhov chaw, yog li nws feem ntau hu ua qhov chaw lo ntsiab muag.

3. Dab tsi yog qhov zoo ntawm nws?
Cov khoom siv PC muaj qhov zoo ntawm ultra-nyias, ultra-light, siab sib tsoo tsis kam, UV tiv thaiv thiab lub teeb xa hluav taws xob zoo, yog dav siv hauv engineering plastics pob tshab cov ntaub ntawv, Nws muaj kev ruaj ntseg zoo thiab tsis muaj hluav taws xob conductivity, yog li daim ntawv thov dav dav, thiab ua los ntawm cov khoom siv PC lens xwm nrog cov txiaj ntsig saum toj no, tshwj xeeb tshaj yog haum rau cov lej siab, xyuam xim rau cov neeg zoo nkauj, cov neeg ua kis las, cov menyuam yaus hnub nyoog qis dua 3 xyoos yuav tsum hnav tsom iav, cov menyuam yaus hnub nyoog qis dua 3 xyoos. cov lenses PC.
Cov lo ntsiab muag dav dav yog cov khoom siv kub, uas yog, cov khoom siv raw yog kua, rhuab los ua cov khoom lo ntsiab muag.PC daim yog cov khoom siv thermoplastic, uas yog, cov khoom siv raw yog cov khoom, tom qab cua sov, shaping rau lub lens, yog li cov khoom siv lo ntsiab muag no yuav dhau los ua deformation, tsis haum rau cov av noo thiab cua sov.PC lo ntsiab muag muaj ib tug muaj zog toughness, tsis tawg (2cm yuav siv tau rau mos mos iav), yog li nws tseem hu ua kev ruaj ntseg lens.Qhov tshwj xeeb lub ntiajteb txawj nqus tsuas yog 2 grams ib cubic centimeter, ua rau nws cov khoom siv lightest tam sim no siv rau lo ntsiab muag.PC lens chaw tsim tshuaj paus yog lub ntiaj teb no ua Esilu, nws qhov zoo yog xav txog nyob rau hauv lub lens aspheric kho thiab hardening kho.
PC qhov chaw lo ntsiab muag yog ua los ntawm polycarbonate lo ntsiab muag, thiab zoo tib yam resin (CR-39) lo ntsiab muag muaj qhov sib txawv tseem ceeb!PC feem ntau hu ua mos mos iav, yog li PC lo ntsiab muag adhering rau cov yam ntxwv zoo heev ntawm raw cov ntaub ntawv super cuam tshuam tsis kam, thiab vim siab refractive index thiab lub teeb yuag, zoo heev txo qhov hnyav ntawm lub lens, muaj ntau yam zoo xws li: 100% UV tiv thaiv, 3-5 xyoo yuav tsis yellowing.Yog tias tsis muaj teeb meem hauv cov txheej txheem, qhov hnyav yog 37% sib zog dua li cov ntaub ntawv zoo tib yam, thiab qhov cuam tshuam tsis kam yog mus txog 12 npaug ntawm cov khoom qub!

4. Keeb kwm ntawm PC lo ntsiab muag
Xyoo 1957,
American GE (General Electric) lub tuam txhab tau ua tus thawj coj hauv kev txhim kho PC (polycarbonate) yas, thiab hu ua Lexan.Lub tuam txhab German Bayer ua raws li lawv cov PC yas Makrolen.
Hauv xyoo 1960s
Lub xyoo pua ob xaus.PPG tau hloov pauv CR-39 cov khoom siv los ntawm cov tub rog los ua cov lo ntsiab muag rau pej xeem siv.
Hauv xyoo 1970s
Thaum ntxov xyoo 1970, cov neeg mob pib tau txais CR-39 lo ntsiab muag.
Xyoo 1973,
85% iav lo ntsiab muag thiab 15% CR-39 lo ntsiab muag.
Xyoo 1978,
Nrog rau qhov zoo ntawm cov tub rog thiab aerospace tej yaam num, Gentex thawj zaug siv PC los tsim cov lo ntsiab muag kev nyab xeeb.
Xyoo 1979,
Hauv cov teb chaws tsim, cov khoom siv lens hloov los ntawm iav mus rau CR-39 resin.Xaus ze li ntawm 600-xyoo dominance ntawm iav lens.
Xyoo 1985,
Vision-ease Lenses Inc. pioneered qhov kev taw qhia ntawm PC tshuaj lo ntsiab muag.
Xyoo 1991,
Transitions, Inc. tso tawm thawj tiam ntawm cov xim hloov resin lo ntsiab muag.
Xyoo 1994,
PC lo ntsiab muag suav txog 10% ntawm Asmeskas kev lag luam.
Xyoo 1995,
Lub polarizing PC lens tau yug los.
Xyoo 2002,
PC lo ntsiab muag suav txog 35% ntawm Asmeskas kev ua lag luam, thaum iav lo ntsiab muag muaj tsawg dua 3%