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Iilensi ze-Optical ze-1.71 ze-Single Vision HMC
Ilensi eyi-1.71 Igama elipheleleyo Ilensi ye-1.71 refractive index, ene-refractive index ephezulu, i-transmittance ephezulu, iimpawu zenani le-Abbe eziphezulu, kwimeko ye-myopia efanayo, inokunciphisa kakhulu ubukhulu belensi, inciphise umgangatho belensi, kwangaxeshanye, yenze ilensi ibe nyulu kwaye ikhanye ngakumbi, kungabi lula ukuyisasaza i-rainbow grain. Kufunyaniswe ukuba ukongeza i-cyclic sulfide resin kwizinto zelensi kunokuphucula i-refractive index yelensi, kodwa i-cyclic sulfide resin eninzi iya kukhokelela ekunciphiseni i-light transmittance kunye nokuqhekeka kwezinto. Ngokulawula ngokuchanekileyo umxholo we-ring sulphur resin kwi-1.71KR resin, ilensi eyi-1.71 ifumana i-refractive index ephezulu kunye nenani le-abbe ngelixa iqinisekisa i-light transmittance elungileyo, i-dispersion ephantsi kunye nombono ocacileyo.
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1.56 I-HMC yoMbono omnye
Ilensi, ikwabizwa ngokuba yiziko lesipili, liziko lokupeyinta emva kokulifaka, lifanelekile ukubethelela kwisakhelo sesipili, ngoko ke libizwa ngokuba liziko lesipili. Imo yalo ingaba tye, imile nkqo, lufakelo olulula nolulula.
Ulwahlulo: Iilensi zingahlulwa zibe ziintlobo ezine ezilandelayo ngokwezixhobo ezahlukeneyo:
Ilensi yeglasi yelensi ekhethekileyo yelensi yesithuba seresin
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1.49 I-Single Vision UC
Isalathisi sokujika kwelensi, 1.49, 1.56, 1.60, 1.67, 1.71, 1.74 kuphawu oluphezulu lwelensi sibhekisa kwisalathisi sokujika kwelensi. Kwiiglasi ze-myopic, okukhona isalathisi sokujika kwelensi siphezulu, kokukhona umphetho welensi uncipha, ngesizathu sokuba ezinye iiparameter ziyafana.
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Iilensi zeglasi ze-CR39
Iiglasi zelanga luhlobo lwemveliso yokhathalelo lwamehlo ukuthintela umonakalo emehlweni abantu obangelwa kukukhanya kwelanga okunamandla. Ngokuphuculwa kwezinto zabantu kunye nenqanaba lenkcubeko, iiglasi zelanga zingasetyenziswa njengezixhobo ezikhethekileyo zobuhle okanye isitayile somntu.
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Iilensi ze-optical ze-1.74 MR-174 FSV High Index HMC
Ngokubanzi, xa sithetha ngesalathisi seelensi ye-resin, siqala kwi-1.49 – 1.56 – 1.61 – 1.67 – 1.71 – 1.74. Ngoko ke amandla afanayo, i-1.74 yeyona incinci, okukhona amandla ephezulu, kokukhona isiphumo sibonakala ngakumbi.
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Iilensi ze-optical ze-1.67 MR-7 FSV High Index HMC
Ilensi yesalathisi ye-1.67 idla ngokuba neentlobo ezimbini zezinto, izinto ze-MR-7 kunye nezinto ze-MR-10.
Kodwa izinto ze-MR-7 zezona zisetyenziswa kakhulu kwaye zaziwa kakhulu kunezinto ze-MR-10.
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Iilensi ze-optical ze-1.61 MR-8 FSV High Index HMC
Ilensi ye-1.61 index idla ngokwahlula iintlobo ezimbini, ilensi ye-1.61 MR-8 kunye nelensi ye-Acrylic ye-1.61.
Ilensi ye-MR-8 eyi-1.61 iya kuba mnandi xa uyinxiba, ngenxa yexabiso layo elihle le-Abbe:41.
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Iilensi ze-polycarbonate HMC ze-1.59 Optical
Iilensi ze-resin eziqhelekileyo zizinto eziqinileyo ezishushu, oko kukuthi, izinto eziluhlaza zilulwelo, kwaye iilensi eziqinileyo zenziwa emva kokufudumeza. Iilensi zePC, ezaziwa ngokuba “ziilensi zesithuba”, “iilensi zecosmic”, ezibizwa ngokuba yi-polycarbonate ngokwekhemikhali, zizinto ze-thermoplastic.
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1.56 I-Bifocal Flat top / Round Top / Iilensi ze-HMC ezixutyiweyo
Iilensi zeBifocals ziilensi zemiboniso eziqulathe zombini iindawo zokulungisa kwaye zisetyenziselwa kakhulu ukulungiswa kwe-presbyopia. Indawo apho ii-bifocals zilungisa khona umbono okude ibizwa ngokuba yindawo yombono okude, kwaye indawo elungisa indawo yombono okufutshane ibizwa ngokuba yindawo yombono okufutshane kunye nendawo yokufunda. Ngokwesiqhelo, indawo ekude inkulu, ngoko ke ikwabizwa ngokuba sisilayi esiphambili, kwaye indawo ekufutshane incinci, ibizwa ngokuba sisilayi esincinci.
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Iilensi ze-optical ze-HMC eziyi-1.56 ezi-Porgressive
Ilensi eqhubekekayo yilensi enobude obuziifocal ezininzi, eyahlukileyo kwiiglasi zokufunda zemveli kunye neeglasi zokufunda eziziifocal ezimbini. Iilensi eziqhubekekayo azikhathali ngokuba kufuneka zilungise ubude befocal rhoqo xa kusetyenziswa ubude befocal ezimbini, kwaye akukho mgca ucacileyo phakathi komgca wokwahlulahlula ubude obuziifocal ezimbini. Ikhululekile ukunxitywa kwaye inenkangeleko entle, kwaye kancinci kancinci ibe lolona khetho lufanelekileyo kubantu abane-presbyopia.
