Waa maxay sababta muraayadaha nalka buluuga ah ee xannibaya ay huruud isu beddelaan?

Muraayadaha dadka qaarkood waxay u egyihiin buluug, qaar guduudan, iyo qaar cagaar ah.Ookiyaalaha xannibaya iftiinka buluuga ah ee lagu taliyay waa hurdi.Haddaba maxay tahay sababta muraayadaha iftiinka buluuga ah ee xannibaya ay huruud isu beddelaan?

Si muuqaal ahaan, iftiinka cad wuxuu ka kooban yahay toddobo midab oo iftiin ah, kuwaas oo dhammaantood ah lama huraan.Iftiinka buluuga ah waa qayb muhiim ah oo ka mid ah iftiinka muuqda, dabeecadda lafteedu ma laha iftiin cad oo gooni ah.Iftiinka buluuga ah waxaa lagu qasaa iftiin cagaaran iyo iftiin jaale ah si loo soo bandhigo iftiin cad.Iftiinka cagaarka ah iyo iftiinka huruudda ah waxa ay leeyihiin tamar yar oo indhuhu way ka cadhaysiiyaan,halka iftiinka buluugga ahi uu leeyahay hirar gaaban iyo tamar sare,taas oo aad uga cadhaysiisa indhaha.

Marka laga eego dhinaca midabka, muraayadda iftiinka buluugga ah waxay muujin doontaa midab gaar ah, iyo muujinta xoogga leh waa huruud khafiif ah.Sidaa darteed, haddii muraayadda aan midabka lahayn ay xayeysiiso inay iska caabin karto iftiinka buluuga ah, asal ahaan waa nacas.Sababtoo ah shaandhaynta iftiinka buluuga ah waxay la macno tahay in spectrum ay aqbaleen indhuhu aanu dhamaystirnayn marka la barbar dhigo spectrum dabiiciga ah, sidaas darteed waxaa jiri doona aberration chromatic, iyo qadarka aberration chromatic waxay ku xiran tahay qiyaasta aragtida qof kasta iyo tayada muraayadda lafteeda.

Marka, muraayadda mugdiga ah miyay ka fiican tahay?Dhab ahaantii, arrintu maaha.Muraayadaha jaalaha ah ee hufan ama mugdiga mugdiga ah si wax ku ool ah uma xannibi karaan iftiinka buluuga ah, halka muraayadaha huruudka ah ay ka hortagi karaan iftiinka buluuga ah iyaga oo aan saameyn ku yeelan marinka iftiinka caadiga ah.Qodobkan waxaa laga yaabaa inay si fudud u ilduufi karaan saaxiibo badan marka ay iibsanayaan muraayadaha iftiinka buluugga ah.Kaliya qiyaas, haddii in ka badan 90% nalka buluuga ah la xannibo, waxay la macno tahay inaadan asal ahaan arki karin iftiin cad, markaa waxaad kala saari kartaa inay u wanaagsan tahay ama u xun tahay indhaha?

Tayada lensku waxay ku xidhan tahay index refractive, dispersion coefficient, iyo lakabyada hawlo kala duwan.Marka uu sareeyo index refractive, lensku wuu sii dhuuban yahay, firidhsanuna wuu sarreeyaa, aragtida ayaa sii caddaanaysa, lakabyada kala duwanina waxa ay u badan yihiin anti-ultraviolet, iftiinka buluugga ah ee shaashadda elektaroonigga ah, anti-static, boodhka, iwm.

Khubaradu waxay yiraahdeen sidan: "Ilayska buluuga ah waa iftiin muuqda oo tamar sare leh oo dhererkiisu yahay 400-500 nanometer, kaas oo ah iftiinka ugu tamarta badan iftiinka muuqda.Iftiinka buluuga ah ee tamarta sare leh ayaa 10 jeer ka dhib badan indhaha marka loo eego iftiinka caadiga ah.Tani waxay muujinaysaa awoodda iftiinka buluuga ah.Sidee weyn!Ka dib markii uu ogaaday khatarta iftiinka buluuga ah, tifaftiruhu wuxuu sidoo kale u tegey inuu xidho laba muraayadaha iftiinka buluuga ah, sidaas darteed muraayadaha tifaftiruhu sidoo kale waxay isu beddeleen jaale!