SETO 1.56 Photochromic Round top bifocal Lens HMC/SHMC
Kufotokozera
1.56 Photochromic Round Top Bifocal mandala | |
Chitsanzo: | 1.56 magalasi owoneka bwino |
Malo Ochokera: | Jiangsu, China |
Mtundu: | Mtengo wa SETO |
Zida zamagalasi: | Utomoni |
Ntchito | Photochromic & Round top |
Mtundu wa Magalasi | Zomveka |
Refractive Index: | 1.56 |
Diameter: | 65/28 mm |
Mtengo wa Abbe: | 39 |
Specific Gravity: | 1.17 |
Kusankha Coating: | Mtengo wa SHMC |
Kupaka utoto | Green |
Mtundu wa Mphamvu: | Sph: -2.00~+3.00 Onjezani: +1.00~+3.00 |
Zamalonda
1) Kodi magalasi a bifocal ndi chiyani?
Ma bifocals ndi magalasi okhala ndi mphamvu ziwiri zowongolera.Bifocals nthawi zambiri amaperekedwa kwa presbyopes
zomwe zimafuna kuwongolera kwa myopia (kuwonera chapafupi) kapena hyperopia (kuwonera patali) ndi kuwongolera kapena popanda kuwongolera astigmatism (kusokoneza masomphenya chifukwa cha mawonekedwe owoneka bwino a lens kapena cornea).Cholinga chachikulu cha lens ya bifocal ndikupereka kuyang'ana koyenera pakati pa mtunda ndi pafupi ndi maso.
Nthawi zambiri, mumayang'ana mmwamba ndikudutsa mtunda wa mandala mukamayang'ana patali, komanso inu
yang'anani pansi ndikudutsa gawo la bifocal la mandala mukamayang'ana kwambiri zowerenga kapena zinthu mkati mwa 18
mainchesi a maso anu. Zimavomerezedwa kuti Benjamin Franklin anayambitsa bifocal.Bifocal yodziwika kwambiri masiku ano ndi Straight Top 28 Bifocal yomwe ili ndi mzere wowongoka pamwamba ndi 28mm radius.Pali mitundu ingapo ya ma bifocals owongoka omwe alipo lero kuphatikiza: Straight Top 25, Straight Top 35, Straight Top 45 ndi Executive (The original Franklin Seg) yomwe imayendetsa kukula kwa mandala.
Kuphatikiza pa ma bifocals owongoka pali ma bifocal ozungulira kwathunthu kuphatikiza Round 22, Round 24, Round 25.
ndi Blended Round 28 (palibe gawo lotsimikizika).
Ubwino wa gawo lozungulira ndikuti pali kudumpha kwazithunzi pang'ono ngati kusintha kumodzi kuchokera patali kupita ku gawo lapafupi la mandala.
2) Kodi mandala a photochromic ndi chiyani?
Magalasi a Photochromic amadziwikanso kuti "magalasi a Photosensitive".Malinga ndi mfundo yosinthira kusintha kwamitundu yowala, disolo limatha kuchita mdima mwachangu pansi pa kuwala ndi cheza cha ultraviolet, kutsekereza kuwala kwamphamvu ndikuyamwa kuwala kwa ultraviolet, ndikuwonetsa kusalowerera ndale pakuwala kowonekera.Kubwerera ku mdima, kumatha kubwezeretsanso mawonekedwe osawoneka bwino, kuonetsetsa kuti ma lens akudutsa.Choncho lens losintha mtundu ndiloyenera kugwiritsidwa ntchito m'nyumba ndi kunja panthawi imodzimodzi, kuteteza kuwala kwa dzuwa, kuwala kwa ultraviolet, kuwala kwa maso.Magalasi a Photochromic amadziwikanso kuti "photosensitive lens".Malinga ndi mfundo yosinthira kusintha kwamitundu yowala, disolo limatha kuchita mdima mwachangu pansi pa kuwala ndi cheza cha ultraviolet, kutsekereza kuwala kwamphamvu ndikuyamwa kuwala kwa ultraviolet, ndikuwonetsa kusalowerera ndale pakuwala kowonekera.Kubwerera ku mdima, kumatha kubwezeretsanso mawonekedwe osawoneka bwino, kuonetsetsa kuti ma lens akudutsa.Choncho magalasi osintha mtundu ndi oyenera kugwiritsidwa ntchito m'nyumba ndi kunja nthawi imodzi, kuteteza kuwala kwa dzuwa, kuwala kwa ultraviolet, kuwala kwa maso.
3) Kodi pali kusiyana kotani pakati pa HC, HMC ndi SHC?
Chophimba cholimba | AR zokutira / zokutira zolimba zambiri | Super hydrophobic zokutira |
imapangitsa mandala osatsekedwa kukhala olimba ndikuwonjezera kukana kwa abrasion | kumawonjezera kufalikira kwa ma lens ndikuchepetsa mawonekedwe a pamwamba | imapangitsa kuti mandala asalowe madzi, antistatic, anti slip ndi kukana mafuta |