1.56 Muraayadaha indhaha ee hal aragga ah ee Semi Dhamaystiran
Faahfaahinta Wax-soo-saarka
| Meesha Asal ahaan: | Jiangsu | Magaca Summada: | BORIS |
| Nambarka Qaabka: | Muraayadda Cad | Qalabka muraayadaha: | NK-55 |
| Saamaynta Aragga: | Aragti keli ah | Filimka Dahaarka: | HC/HMC/SHMC |
| Midabka muraayadaha: | Caddaan | Midabka Dahaarka: | Cagaar/buluug |
| Tusmada: | 1.56 | Cuf-jiid gaar ah: | 1.28 |
| shahaado: | CE/ISO9001 | Abbe Value: | 35 |
| Dhexroor: | 70/75mm | Naqshad: | Asperical |
Qalabka muraayadda
1. muraayadaha caaga ah. Muraayadaha caaga ah ayaa badi loo qaybiyaa saddex nooc: lenses resin, lenses PC, acrylic lenses. Waxay leedahay faa'iidooyinka miisaanka fudud oo aan jabin karin. Marka la barbardhigo muraayadaha muraayadda, waxay leedahay wax-qabad ka-hortagga ultraviolet ka fiican. Laakiin waxqabadka xirashada u adkeysiga muraayadaha caagga ah waa mid liidata, ka baqaya saameynta, marka dib loo soo kabsado, baahi badan ayaa loo baahan yahay in fiiro gaar ah loo yeesho.
2. muraayad muraayad ah. Waxqabadka muraayadda muraayadda muraayadda waa mid deggan, ma fududa in la qaabeeyo, laakiin waa jilicsan, waxqabadka badbaadada waa mid aan ku filnayn, kiiskan, waxqabadka badbaadada ee muraayadaha muraayadda ee la xoojiyay ayaa noqon doona mid aad u sarreeya.
3. muraayadaha indhaha. Muraayadaha dabaylaha ah ayaa inta badan ah muraayad la sameeyay iyadoo la adeegsanayo mabda'a kala soocida iftiinka. Waxay ka dhigi kartaa aragga mid aad u cad oo gooya dhalaalka ka baxsan muraayadda. Waa muraayad si weyn looga isticmaalo suuqa maanta.
4. muraayadaha midabka beddela. Muraayadaha midabka beddela waa muraayadaha soo saara midabo kala duwan iyadoo ku xiran sida iftiinka loo beddelo. Waxay u ogolaataa indhuhu inay la qabsadaan iftiinka iftiinka ee kala duwan, muraayadaha muraayadaha leh muraayadaha midabka beddela ayaa sidoo kale loo yaqaannaa muraayadaha ugu habboon ee myopia.
Hordhac Wax-soo-saar
Tusmada dib-u-soo-celinta waxa loola jeedaa index refractive of lens-ka, iyo marka uu sareeyo index refractive, lensku wuu khafiifsan yahay. Tusmada dib-u-celinta guud ahaan waa 1.49, 1.56, 1.61, 1.67, 1.74.
Tusmada dib-u-celinta ku habboon waa in lagu qiimeeyaa si dhammaystiran iyadoo loo eegayo heerka, fogaanta ardayga iyo cabbirka jir ahaaneed. Guud ahaan, heerka sare ee darajada, ayaa sare u kaca index refractive ee lensku, wuxuu ka dhigi doonaa muraayada u muuqda mid khafiif ah. Sidoo kale, haddii masaafada ardaygu yar yahay oo jirku weyn yahay, waxaad u baahan doontaa inaad dooratid lens index refractive sare ah si aad muraayadda uga dhigto mid khafiif ah. Dhanka kale, haddii jirku yar yahay oo masaafada ardaygu weyn tahay, looma baahna in la raaco muraayad-index sare.
Habka Alaabta
