Sidee loo doortaa muraayadda muraayadda saxda ah ee saxda ah?

1. Sidee loo doortaa?

Marka muraayadaha isku midka ah, goorta la yimaaddo si loo doorto isku xirka Lens, Xisbiga Muraayadaha ma aha khasaare?Ma garanayo sida loo doorto muraayadda.Waa kan sida loo doorto muraayadda saxda ah ee shahaadadaada.

2. Tusmada refractive

Tusmada dib-u-celinta waa saamiga xawaaraha faafinta iftiinka ee faakuumka iyo kan iftiinka alaabta muraayadda.

Marka uu sareeyo index refractive, lens-ku wuu sii dhuuban yahay, taas oo ah, dhumucda isku midka ah ee xarunta Lens-ka, isla tirada darajo ee lens-ka walxaha isku midka ah, ayaa ka sarreeya index refractive marka loo eego dhumucda hoose ee Lens Edge.Markasta oo ay sareeyso tusmada wax-soo-celinta ee maaddadu, way sii xoogaysanaysaa awoodda dib-u-celinta iftiinka dhacdada.

Waqtigan xaadirka ah, tusaha ugu weyn ee muraayadaha muraayadaha ee suuqa waa: 1.56,1.61,1.67,1.74.

Caadiyan halbeegga ugu horreeya ee dad badan ay la kulmaan lensku waa index refractive.Markaa waa qaabka ugu dareensan ee muraayadda: Sarreeya tusmada dib-u-celinta, waa ka khafiifsan yahay muraayadda.

Shuruudaha quruxda iyo miisaanka, muraayadaha khafiifka ah ayaa ah doorasho wanaagsan.

3. Abbe number

Doorashada muraayadaha, erey kale oo muhiim ah oo xog muhiim ah oo la xidhiidha muraayadaha indhaha waa nambarka abbe.Haddaba waa maxay lambarka Abeliyan?

Lambarka Ernst Abbe waxa loola jeedaa qodobka kala firdhisan, kaas oo loo isticmaalo in lagu cabbiro muuqaalka sawirka muraayada.Markasta oo uu sareeyo nambarka ABBE, waa ay sii yaraaneysaa kala firdhinta, waa ay sii caddahay oo waaqiciga ah saameynta muuqaalka.

Isha bini'aadamku waxay leedahay abbe nambar oo ah 58.6, iyo marka uu u dhawaado nambarka Ernst Abbe ee lenska, lensku wuxuu noqon doonaa mid raaxo leh.

4. Qiimaha tixraaca tusmada dib u celinta

J, haddii shahaadodu tahay 0-200 digrii, waxaanu ku talinaynaa in la isticmaalo 1.56 lenses index refractive.

B, haddii heerka 200-350 darajo, waxaan ku talinaynaa isticmaalka 1.61 muraayadaha index refractive.

C, haddii shahaadadu ay tahay 350-550 digrii, waxaan kugula talineynaa isticmaalka lenses index refractive 1.67.

D, haddii heerka 550-800 darajo iyo in ka badan 800 darajo, waxaan ku talinaynaa isticmaalka 1.74 lenses index refractive.

5, Talooyin

Haddii masaafada ardaygu aad u yar yahay, ama cabbirka jir ee la doortay uu aad u weyn yahay, waxaa lagu talinayaa in la kordhiyo tusmada dib u soo celinta.

Markaad dooranayso jir, waa in qofku tixgeliyo isdhexgalka muraayadda:

Inta uu bato cabbirka jirku, waa weyn yahay dhexroorka muraayadda, iyo cidhifyada jirku way sii dhumunayaan.

Ha u malayn in doorashada index refractive sare Lens, ka dhigi cidhifka muraayadaha waxay noqon doontaa mid aad u dhuuban, tani waa qalad, sababtoo ah tiro la mid ah lenses sameeyey sababtoo ah dhumucda fogaanta ardayga, astigmatism, dhidibka, size jir. oo kala duwan.

Sidaa darteed, marka aan dooranno muraayadda ku habboon shahaadadayada, waa in aan tixgelinno dhammaan dhinacyada, si muraayadaha ay u noqdaan kuwo raaxo leh oo xiran.