Peb cov ntaub ntawv tseem ceeb ntawm cov lo ntsiab muag kho qhov muag: dab tsi yog qhov txawv thiab qhov zoo thiab qhov tsis zoo ntawm peb qhov nrov optical lo ntsiab muag.Haum tsom iav ntawm lub lens kev paub, peb tau qhia txog hom kev ua haujlwm ntawm lub lens, qhov tshwj xeeb ntawm cov khoom siv me ntsis dhau mus, lub sijhawm no peb tsom mus rau peb lub ntsiab lus ntawm lub lens: iav lens / resin lens / PC lens.
Peb cov ntaub ntawv tseem ceeb ntawm cov lo ntsiab muag kho qhov muag: dab tsi yog qhov txawv thiab qhov zoo thiab qhov tsis zoo ntawm peb qhov nrov optical lo ntsiab muag.Haum tsom iav ntawm lub lens kev paub, peb tau qhia txog hom kev ua haujlwm ntawm lub lens, qhov tshwj xeeb ntawm cov khoom siv me ntsis dhau mus, lub sijhawm no peb tsom mus rau peb lub ntsiab lus ntawm lub lens: iav lens / resin lens / PC lens.
Peb cov khoom faib
iav lo ntsiab muag
Thaum ntxov, cov khoom tseem ceeb rau lo ntsiab muag yog optical iav.Qhov no tsuas yog vim hais tias xav txog qhov siab transmittance thiab clarity ntawm optical iav lo ntsiab muag, thev naus laus zis kuj paub tab thiab yooj yim.Txawm li cas los xij, qhov teeb meem loj tshaj plaws ntawm cov iav lo ntsiab muag yog kev nyab xeeb, nws qhov cuam tshuam tsis zoo, nws yooj yim tawg, thiab vim nws cov khoom hnyav, nws tsis xis nyob rau hnav, yog li nws tsis tshua muaj siv hauv kev ua lag luam tam sim no.
Resin lo ntsiab muag
Resin lens yog ib hom optical lens ua los ntawm cov khoom siv raw, ua tiav, sib xyaw thiab polished los ntawm cov txheej txheem tshuaj lom neeg.Tam sim no, resin lens yog cov khoom siv tshaj plaws.Qhov hnyav ntawm cov iav lo ntsiab muag yog sib zog dua li ntawm cov iav kho qhov muag, thiab qhov cuam tshuam kuj muaj zog dua iav, thiab nws tsis yooj yim rau tawg, yog li nws muaj kev nyab xeeb dua rau kev siv.Hais txog tus nqi, resin lo ntsiab muag kuj pheej yig dua.Tab sis qhov hnav tsis kam ntawm lub lens resin tsis zoo, oxidation ceev ceev, lub lens nto yog yooj yim dua los khawb.
PC lo ntsiab muag
PC lens yog ib hom lens ua los ntawm polycarbonate (thermoplastic khoom) tom qab cua sov thiab shaping.Cov khoom siv no tau tsim los ntawm qhov chaw ua haujlwm, yog li nws tseem hu ua qhov chaw zaj duab xis lossis qhov chaw zaj duab xis.PC resin yog ib yam khoom siv thermoplastic nrog kev ua haujlwm zoo, yog li nws tsim nyog rau kev ua cov tsom iav.PC lens cuam tshuam kuj zoo heev, yuav luag tsis tawg, muaj kev nyab xeeb heev.Nyob rau hauv cov nqe lus ntawm qhov hnyav, nws yog sib dua li resin lo ntsiab muag.Tab sis PC lens yuav muaj teeb meem hauv kev ua, yog li tus nqi kuj siab.
Los xaus:
| Khoom siv | Qhov zoo | Kev tsis txaus |
| iav lens | High transmittance thiab refractive index, hnav tsis kam | Hnyav thiab yooj yim tawg |
| Resin lens | Lub teeb, tsis yooj yim tawg, tus nqi qis | Nws yooj yim rau khawb |
| PC lens | Lub teeb thiab tsis yooj yim tawg | Yooj yim rau khawb thiab tus nqi siab |
Cov khoom tsim nyog rau cov neeg laus
Cov neeg laus presbyopia tau hais kom xaiv cov iav lo ntsiab muag lossis cov lo ntsiab muag resin.Feem ntau, presbyopia yog qhov qis-degree hyperopia zaj duab xis, uas tsis tas yuav tsum muaj qhov hnyav ntawm lub lens, thiab cov lus tsa suab ntawm cov neeg laus tsis siab.iav los yog super-hard resin zaj duab xis yog ntau resistant rau khawb, thiab optical kev ua tau zoo kuj yuav ua tau ntev.
Khoom haum rau cov neeg laus
Resin lo ntsiab muag yog tsim rau cov hluas thiab nruab nrab hnub nyoog.Lub selectivity ntawm resin lens yog dav, raws li lub refractive index distinction, functional distinction, refractive focus distinction, muaj peev xwm ua tau raws li cov kev xav tau ntawm cov neeg sib txawv.
Cov khoom tsim nyog rau cov menyuam yaus thiab cov hluas
Cov niam txiv raug qhia kom xaiv lo ntsiab muag ua los ntawm cov ntsiav tshuaj PC lossis Trivex cov ntaub ntawv.Piv nrog rau lwm cov lo ntsiab muag, cov lo ntsiab muag no tsis yog lub teeb hauv qhov hnyav xwb, tab sis kuj muaj kev cuam tshuam zoo dua thiab kev nyab xeeb dua.Tsis tas li ntawd xwb, PC ntsiav tshuaj thiab Trivex lo ntsiab muag tseem tiv thaiv koj ob lub qhov muag los ntawm UV rays.
Hom lens no muaj zog toughness thiab tsis yooj yim rau tawg, yog li nws yog hu ua kev ruaj ntseg lens.Ntawm tsuas yog 2 grams ib cubic centimeter, nws yog cov khoom siv tshaj plaws muaj rau lo ntsiab muag.Cov iav lo ntsiab muag rau cov menyuam yaus tsis haum rau cov iav lo ntsiab muag, vim tias cov menyuam yaus ua haujlwm, thiab cov iav lo ntsiab muag tsis yooj yim, yog tawg, nws yuav ua rau lub qhov muag raug mob.
Sau kawg
Lenses ntawm cov khoom sib txawv muaj cov yam ntxwv ntawm cov khoom sib txawv.Cov ntawv iav yog qhov hnyav thiab muaj kev nyab xeeb tsawg, tab sis nws tiv taus khawb thiab siv sijhawm ntev.Nws yog qhov tsim nyog rau cov neeg laus uas tsis muaj kev tawm dag zog thiab qib qis presbyopia.Resin lens muaj ntau yam kev ua haujlwm, haum rau cov tub ntxhais hluas hauv ntau yam kev kawm thiab kev ua haujlwm;Cov menyuam yaus lub lens kev nyab xeeb, qhov yuav tsum tau txav mus los yog siab, PC lens yog qhov kev xaiv zoo dua.
Post lub sij hawm: Oct-03-2022