Muraayadaha indhaha ayaa ka dhumuc weyn oo ka yar; Muraayadaha Fresnel waa kuwo dhuuban oo cabbirkoodu weyn yahay.
Mabda'a muraayada Fresnel waa physicist Faransiis Augustine. Waxa ikhtiraacay AugustinFresnel, kaas oo u beddelay lenses-spherical and aspherical lenses oo u beddelay muraayadaha qaab-dhismeedka iftiinka iyo khafiifka ah si loo gaaro saameyn isku mid ah. Dabadeed, tiro badan oo xadhig indhaha ah ayaa lagu farsameeyay dusha sare ee qorshaysan iyada oo loo marayo habayn aad u sax ah, koox kastaa waxay ciyaartay doorka muraayad madax banaan. Muraayada Fresnel waa habka ugu fiican ee lagu ogaan karo lens weyn, fidsan oo dhuuban.
Soo saarista muraayadaha Feist Fresnel, gaar ahaan muraayadaha cabbirka waaweyn, waxay ku lug leeyihiin jilitaanka naqshadaynta indhaha, tignoolajiyada wax soo saarka ee aadka u saxsan, agabka polymer iyo habka qaabaynta saxda ah. Muraayada Fresnel waxaa si weyn loogu isticmaali karaa iftiinka, navigation, cilmi-baarista sayniska iyo wixii la mid ah.
Lenska Fresnel waa qaab saxan fidsan oo ka tarjumaya oo xooga saaraya fallaadhaha. Isticmaalka mabda'a this iyo technology splicing, waxaan u bedeli kartaa paraboloid, ellipsoid iyo nidaamka sare ee lenska indhaha korka ee dalool kasta galay qaab diyaarad, si ay u ogaadaan splicing lens Fresnel ee cabbir kasta, iyo sahamiyaan codsiga of tamarta qorraxda meel bannaan iyo milicsada Rafaa (sida. sida guizhou Tianyan 500-mitir daloolin raadiyaha telescope).
Farsamada Mosaic ee aan dhamaadka lahayn ee lenska Fresnel waxaa loo isticmaali karaa laga bilaabo dhowr mitir, ilaa boqolaal mitir, ilaa cabbir kasta oo weyn. Guizhou Tianjia oogada muraayadda parabolic oo leh dhexroor 500 oo mitir ah waxay isticmaali kartaa farsamadan Mosaic si ay ugu ekaato dusha sare ee muraayada Fresnel, taas oo yaraynaysa dhibka habaynta oo ay fududahay in la rakibo lana hagaajiyo.
Waqtiga post: Dec-24-2021
