Marka la dooranayo muraayadda, waxaa jiri doona 1.56, 1.61, 1.67, 1.74 iyo qiyamka kale ee la dooranayo, qiimahani wuxuu loola jeedaa index refractive ee muraayadda.
Mar kasta oo uu sareeyo tusmada dib-u-celinta ee muraayadda, ayaa lensku sii dhuuban yahay, muraayadduna waa sii adkaanaysaa.Dabcan, mar kasta oo uu sareeyo index refractive-ka, tayada ayaa sii fiicnaaneysa, iyo muraayadda qaaliga ah.Haddii aad rabto in aad ku ekaato muraayadaha dhuuban ee aadka u dhuuban, ma aha oo kaliya tusmooyinka refractive, laakiin sidoo kale leh cabbirka qaabka iyo fogaanta ardayga.
Haddaba ujeeddadu waxay tahay, sidee ayaad u dooranaysaa tusmada dib-u-celinta ee muraayadda?
Dad badan oo muraayado leh ayaa kaliya dhumucda muraayadda, khafiifka ah ayaa ka sii fiican, waxay si toos ah u dooran doonaan muraayadda leh index refractive sare.Laakiin dhab ahaantii, index refractive ma aha kuwa sare ka wanaagsan, waa sida ay muraayadaha shakhsiga u gaar ah si ay u doortaan saxda ah.
Waa maxay sababta tusmada dib-u-celinta ee sare u roonayn?
Marka hore, wax walba waa ku habboon yihiin, ma aha qaali qaali ah ayaa ka sii fiican.
Marka labaad, mar kasta oo uu sareeyo index refractive, hoos ayuu u dhigayaa lambarka Abbe.Mar kasta oo nambarka Abbe uu sareeyo, ayaa sawirka uu sii caddaanayaa.Marka uu hooseeyo nambarka Abbe, waxaa sii caddaanaya sawirku.
Sidaa darteed, waxaa guud ahaan lagu talinayaa in la doorto index refractive habboon sida ay u gaar ah.
Guud.
Talo:
0°-400° myopia ama <200°-400° hyperopia: 1.56;
400°-600° myopia ama 400°-600° hyperopia: dooro 1.61;
600°-800° myopia: 1.67;
Ka sarreeya 800° dooro muraayadaha muraayadda ama 1.74 lens resin.
Rajeynayaa in qof kasta oo caafimaad qaba indhaha, daryeel badan oo nafta daaqada!!!Is arag todobaadka danbe
Waqtiga boostada: Agoosto-12-2022