SETO 1.56 lenska bifocal-sare ee fidsan HMC
Tilmaamid
| 1.56 lenska indhaha ee bifocal-sare | |
| Qaabka: | 1.56 muraayad indhaha ah |
| Meesha Asal ahaan: | Jiangsu, Shiinaha |
| Summada: | SETO |
| Qalabka muraayadaha: | Resin |
| Shaqada | Bifocal-sare |
| Midabka muraayadaha | Cad |
| Tusmada Dib-u-celinta: | 1.56 |
| Dhexroor: | 70mm |
| Abbe Value: | 34.7 |
| Cuf-jiid gaar ah: | 1.27 |
| Gudbinta: | >97% |
| Doorashada Dahaarka: | HC/HMC/SHMC |
| Midabka dahaarka | Cagaaran |
| Qiyaasta Awoodda: | Sph: -2.00~+3.00 Kudar: +1.00~+3.00 |
Tilmaamaha Alaabta
1.Waa maxay sifooyinka bifocals?
Tilmaamaha: waxaa jira laba dhibcood oo diiradda saaraya muraayadda, taas oo ah, muraayad yar oo leh awood kala duwan oo lagu dul saaray muraayadda caadiga ah;
Loo isticmaalo bukaanada qaba presbyopia si ay u arkaan meel fog iyo meel u dhow;
Midka sare waa iftiinka marka aad fiirineyso meel fog (mararka qaar waa fidsan), iftiinka hoosena waa iftiinka marka wax la akhrinayo;
Heerka fogaanta waxaa loo yaqaannaa awoodda sare, heerka u dhowna waxaa loo yaqaannaa awoodda hoose, farqiga u dhexeeya awoodda sare iyo xoogga hoosena waxaa loo yaqaan ADD (added power).
Marka loo eego qaabka gabal yar, waxa loo qaybin karaa laba-geesood oo fidsan, bifocal-korka sare iyo wixii la mid ah.
Faa'iidooyinka: Bukaannada presbyopia uma baahna inay beddelaan muraayadaha marka ay arkaan meel dhow iyo mid fog.
Khasaaro: ifafaale boodbood marka la eegayo beddelka fog iyo kan dhow;
Marka loo eego muuqaalka, way ka duwan tahay muraayadaha caadiga ah.
2.Waa maxay Balacyada Qaybaha lens-ka laba-geesoodka ah?
Muraayadaha laba-geesoodka ah ayaa diyaar ah oo leh hal ballac oo kala ah: 28 mm.Nambarka ka dambeeya "CT" ee magaca alaabta ayaa tilmaamaya ballaca qaybta millimitirka.
3.Waa maxay lenska ugu sarreeya ee 28 bifocal?
Lenska ugu sarreeya ee 28 wuxuu bixiyaa hagaajinta fog iyo fog labadaba.Waa lens multifocal oo caadi ahaan loogu talagalay kuwa qaba presbyopia iyo hypermetropia labadaba, xaalad ay, da'da, isha ku muujiso awoodda si tartiib tartiib ah u yaraynaysa si ay diiradda u saarto walxaha dhow iyo kuwa fog.Muraayada sare ee fidsan waxa ku jira qayb ku taal badhka hoose ee muraayadda oo leh warqad dhakhtar u qoray (masaafada u dhow).Ballaca dabaqa sare ee 28 bifocal waa 28mm ballac ah xagga sare ee bifocal wuxuuna u eg yahay xarafka D 90 darajo.
Sababtoo ah bifocal sare ee fidsan waa mid ka mid ah lenses-ka ugu fudud ee multifocal si loola qabsado, waa mid ka mid ah muraayadaha bifocal ee ugu caansan adduunka.Way kala duwan tahay "boodboodka" fogaan ilaa aragga u dhow waxay siinaysaa dadka xidha laba aag oo si fiican u go'ay oo muraayadahooda ah inay isticmaalaan, iyadoo ku xidhan hawsha ay hayaan.Xariiqdu waa iska caddahay sababtoo ah isbeddelka awooduhu waa isla markiiba iyadoo faa'iidada ay tahay inay ku siiso aagga wax-akhriska ee ugu ballaadhan adigoon aad hoos ugu eegin muraayadda.Sidoo kale way fududahay in qof la baro sida looga faa'iidaysto bifocal-ka in aad si fudud u isticmaasho xagga sare ee fogaanta iyo hoosta si aad wax u akhrido.
4. Waa maxay faraqa u dhexeeya HC, HMC iyo SHC?
| Dahaarka adag | Daahan AR / Daahan badan oo adag | daahan Super hydrophobic |
| waxay ka dhigtaa muraayadda aan dahaadhka ahayn mid adag oo kordhisa iska caabbinta nabarrada | waxay kordhisaa gudbinta muraayadda waxayna yaraynaysaa milicsiga dusha sare | muraayada waxay ka dhigtaa mid aan biyuhu ahayn, antistatic, silbasho lid ku ah iyo caabbinta saliidda |
Shahaado
Warshadayada
