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Tsatanetsatane wa Zamalonda

1.50 CR-39

Zogulitsa Tags

Magalasi owoneka bwino ndi omwe amagwiritsidwa ntchito kwambiri pokonza zowonera.Kupereka kumveka kwapamwamba kwambiri, kuchepetsa kunyezimira kwa kuwala, kuwongolera kusiyanitsa ndi kupititsa patsogolo magwiridwe antchito, ntchito yawo ndikupereka masomphenya owoneka bwino bwino.Magalasi owoneka bwino ndi abwino kwa iwo omwe amavala magalasi tsiku lonse.Zimakhalanso zabwino kwa iwo omwe amakonda mawonekedwe omwe kuvala magalasi kumawapatsa, ngakhale maso awo ali abwino.Mwachidule, magalasi omveka bwino ndi abwino kwa aliyense
Hopesun imapereka zosankha zabwino kwambiri zamagalasi omveka bwino pazinthu zonse kuchokera pa 1.50 index mpaka 1.74 index.Magalasi onse amapangidwa ndi zida zabwino kwambiri padziko lonse lapansi, monga CR-39 yochokera ku PPG, mndandanda wa MR wochokera ku Mitsui Chemicals kuti muwonetsetse kumveka bwino, chitetezo, kulimba.Hopesun imakhala ndi mitundu yambiri komanso kuchuluka kwa magalasi omveka bwino omalizidwa mumasomphenya amodzi, abifocal komanso opita patsogolo.

Ngati mumayamikira khalidwe, machitidwe ndi luso mwafika pamalo oyenera.

nyimbo

Index&Zinthu Zilipo

ZakuthupiZakuthupi Mtengo wa CR-39 Mtengo wa NK-55 Polycarbonate MBU-8 MR-7 MR-174
imhRefractive Index 1.50 1.56 1.59 1.60 1.67 1.74
AbbeMtengo wa Abbe 58 35 32 42 32 33
SpecSpecific Gravity 1.32g/cm3 1.28g/cm3 1.20g/cm3 1.30g/cm3 1.36g/cm3 1.46g/cm3
UVUV Block 350nm pa 385nm pa 380nm pa 395nm pa 395nm pa 395nm pa
KupangaKupanga SPH SPH SPH SPH/ASP ASP ASP

CR39 (1.50 refractive index):CR39 imadziwika ndi kuchuluka kwa Abbe, kuwonekera kwambiri, kukana mwamphamvu (popanda zokutira), kachulukidwe kakang'ono (pafupifupi theka lochepera la mandala agalasi), ntchito yabwino yopaka utoto, kukana zosungunulira, kukana kwamankhwala ndi kukana kutentha.Ndipo chifukwa njira yopanga ndi yokhwima, yotsika mtengo, mpaka pano idakali imodzi mwazinthu zodziwika bwino zamagalasi.Komabe, CR39 ndi yocheperako poyerekeza ndi zida zina potengera kukana komanso kulimba kwamphamvu, kotero siyoyenera magalasi opanda mipiringidzo (magalasi amatha kusweka akabowola), komanso ili ndi index yotsika kwambiri yowonetsera, kupangitsa kuti magalasi achuluke pamadigiri apamwamba.

1.56 Refractive index:Zopangira nthawi zambiri zimakhala NK55, zomwe nthawi zambiri zimatchedwa acrylic.Mtengo wake ndi wotsika ndipo mtengo wogwiritsa ntchito ndi wokwera, koma mphamvu yopepuka ndiyofooka.Diso lake ndi losalimba, ndipo ndi losavuta kusweka pobowola chimango.

1.59 PC zinthu:Zinthu za PC ndi Polycarbonate, yomwe ndi pulasitiki ya thermoplastic yokhala ndi refractive index ya 1.59 komanso kukana mwamphamvu.Itha kugwiritsidwa ntchito ngati magalasi oteteza zipolopolo ndi zipewa zankhondo.Itha kugwiritsidwa ntchito m'magalasi osadandaula za kusweka kwa magalasi.Ndizoyenera magalasi opanda malire.Ndipo refractive index ndi wapamwamba kuposa CR39, mandala amatha kukhala ochepa thupi.Koma monga zakuthupi thermoplastic, ntchito yake processing ndi kukana mankhwala si zabwino, osati TACHIMATA pamwamba ndi zosavuta kukanda, kuvala kukana.Kuphatikiza apo, nambala yake ya Abbe ndi 30, yomwe ndi 28 yosiyana ndi CR39.

MR zinthu (1.60MR-8, 1.67MR-7, 1.74MR-174):MR™ ndi mndandanda wazinthu zapakatikati komanso zapamwamba za refractive index resin zopangidwa ndi Mitsui Chemical Company ku Japan.Kupatula MR174, mndandanda wonsewo umapangidwa ndi zinthu za polyurethane (MR174 ndi mphete ya sulfure yokhala ndi kukana bwino kwa kubalalitsidwa).Ngakhale kukana kwamphamvu sikuli kwabwino ngati PC ndi Trivex, kuli ndi zabwino zodziwikiratu kuposa CR39.Kuonjezera apo, chiwerengero cha abbe cha mndandanda wa zipangizozi ndi chochepa, kukana kutentha, kukana kwa nyengo ndi kukana kwa mankhwala ndi kwabwino, kotero kumakhala ndi ntchito yabwino yokwanira.

Onani magalasi Athu Oyera

Masomphenya Amodzi

● SV 1.50
● SV 1.56
● SV 1.74
● SV 1.59PC
● SV 1.60
● SV 1.67

Bifocal

● BF 1.50
● BF 1.59

Zopita patsogolo

● PRG 1.50
● PRG 1.59PC
● PRG 1.56

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