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1.59 Polycarbonate HMC Optical lenses
Cov iav resin feem ntau yog cov khoom siv thermal solid, uas yog, cov khoom siv raw yog kua, thiab cov iav khov kho tau tsim tom qab cua sov. Cov iav PC, tseem hu ua "space lenses", "cosmic lenses", hu ua polycarbonate, yog cov khoom siv thermoplastic.
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1.56 Bifocal Flat top / Round Top / Blended HMC optical lenses
Cov tsom iav bifocals yog cov tsom iav uas muaj ob qho chaw kho thiab feem ntau yog siv rau kev kho qhov muag presbyopia. Thaj chaw uas cov tsom iav bifocals kho qhov pom kev deb hu ua thaj chaw pom kev deb, thiab thaj chaw uas kho qhov pom kev ze hu ua thaj chaw pom kev ze thiab thaj chaw nyeem ntawv. Feem ntau, thaj chaw deb loj dua, yog li nws kuj hu ua daim tseem ceeb, thiab thaj chaw ze me dua, hu ua daim seem.
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1.56 Porgressive HMC optical lenses
Lub tsom iav progressive yog lub tsom iav uas muaj ntau lub focal length, txawv ntawm cov tsom iav nyeem ntawv ib txwm muaj thiab cov tsom iav nyeem ntawv bifocal. Cov tsom iav progressive tsis ua rau lub qhov muag nkees thaum siv cov tsom iav bifocal lengths, thiab tsis muaj kab pom tseeb ntawm ob lub focal lengths. Nws yooj yim hnav thiab muaj tsos zoo nkauj, thiab maj mam dhau los ua qhov kev xaiv zoo tshaj plaws rau cov neeg uas muaj presbyopia.
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1.56 FSV Xiav Thaiv HMC Xiav Txheej Optical lenses
Lub Lens Xiav Thaiv, peb kuj hu ua Lub Lens Xiav Txiav lossis Lub Lens UV420. Thiab nws muaj ob hom lens xiav thaiv sib txawv, ib qho yog cov khoom siv lens xiav thaiv, hom no yog thaiv lub teeb xiav los ntawm cov khoom siv; lwm qhov yog ntxiv cov txheej txheej xiav thaiv los thaiv lub teeb xiav. Cov neeg siv khoom feem ntau xaiv cov khoom siv lens xiav thaiv, vim tias nws pheej yig dua thiab yooj yim los xyuas nws cov haujlwm thaiv, tsuas yog xav tau lub cwj mem teeb xiav txaus.
