Muraayadaha maadiga ah ee ka fiican?

1.67 HMC
Muraayadaha ayaa si tartiib tartiib ah u noqday shay ay qasab ku tahay dadka intiisa badan, laakiin dad badan ayaa runtii ku jahwareersan doorashada muraayadaha. Haddii isbarbardhigga uusan fiicnayn, kaliya kuma guuldareysan doono in la saxo aragga, laakiin sidoo kale waxay dhaawaceysaa caafimaadka indhahayaga, sidaa darteed sida loo doorto muraayadda saxda ah marka la helayo muraayadaha?

 

(1) khafiif ah oo khafiif ah

Tusmooyinka dib-u-celinta caadiga ah ee muraayadaha CONVOX waa: 1.56, 1.59, 1.61, 1.67, 1.71, 1.74.Isla shahaado la mid ah, mar kasta oo uu sareeyo index refractive lens-ka, waxa sii xoogaysanaya awoodda dib-u-celinta iftiinka dhacdada, muraayadda khafiifka ah iyo miisaanka ayaa sii kordha.Fufud oo raaxo badan in la xidho.

(2) Hufnaan

Tusmada dib-u-celinta kaliya ma go'aamiso dhumucda muraayadda, laakiin sidoo kale waxay saamaysaa lambarka Abbe.Inta uu bato nambarka Abbe, waa sii yaraanayaa kala firdhisanaanta.Taa beddelkeeda, tirada Abbe ee yar, ayaa sii weynaan doonta kala firdhisanaanta, iyo ka sii xumaanta caddaynta sawirka.Laakiin guud ahaan marka la hadlo, index-ka dib-u-celinta sarreeya, ayaa sii weynaanaya kala firdhisanaanta, sidaas darteed khafiifinta iyo caddaynta muraayadda inta badan lama tixgelin karo.

(3) Gudbinta fudud

Gudbinta iftiinka ayaa sidoo kale ah mid ka mid ah arrimaha saameeya tayada muraayadda.Haddii iftiinku aad u madoobaado, fiirinta shay kasta waxay keenaysaa daal aragga, taas oo aan ku habboonayn caafimaadka indhaha.Qalabka wanaagsani wuxuu si wax ku ool ah u dhimi karaa luminta iftiinka, saameynta gudbinta iftiinka waa mid wanaagsan, cad oo hufan.Ha ku siiyo aragti ifaysa.

 (4) Ilaalinta UV

Iftiinka ultraviolet waa iftiin leh mawjada dhererkeedu yahay 10nm-380nm.Falaadhaha ultraviolet ee xad-dhaafka ah waxay dhaawac u geystaan ​​jidhka bini'aadamka, gaar ahaan indhaha, waxayna xitaa sababi karaan indho la'aan xaaladaha daran.Waqtigaan, shaqada ka hortagga ultraviolet ee muraayadda ayaa si gaar ah muhiim u ah.Waxay si wax ku ool ah u xannibi kartaa fallaadhaha ultraviolet iyada oo aan saameyn ku yeelan marinka iftiinka muuqda, iyo ilaalinta indhaha iyada oo aan saameyn ku yeelan saameynta muuqaalka.


Waqtiga boostada: Jun-12-2023