Mitengo yowala ndi yowuma ndi yaying'ono; Magalasi a Fresnel ali owonda komanso akulu kukula.
Mfundo za Lens ya Fresnel ndi Katswiri wa French aku France. Inapangidwa ndi Augunsfrenels, omwe amasintha magalasi ozungulira komanso otupa a mawonekedwe owoneka bwino komanso owonda kwambiri kuti akwaniritse zomwezo. Kenako, ambiri amiyala adakonzedwa pa colinganalo kudzera pakukonzanso, ndipo gulu lililonse limachita lens odziyimira pawokha. Ma lens a Fresnel ndiye njira yabwino kwambiri yothetsera mandala akuluakulu komanso owonda.
Kupanga magalasi a festinel, makamaka magalasi akuluakulu, kumafuna mawonekedwe opangira makope, kugwiritsa ntchito ukadaulo wa ultration, zida za poyimmer ndi kuwumbidwa. Levesnel mandala amatha kugwiritsidwa ntchito kwambiri powunikira, kuyenda, kafukufuku wasayansi ndi zina zotero.
Ma lens a Fresnel ndi mawonekedwe athyathyathya omwe amawonetsera ndi kuwonda misewu. Pogwiritsa ntchito mfundozi komanso ukadaulo wopopera, titha kusintha paraboloid, ellipsoid ndi makonzedwe apamwamba owoneka bwino kwambiri mu mawonekedwe a ndege, kuti adziwe kugwiritsa ntchito mawonekedwe a Space Exers ndi Guizhou Tian 500-metay
Tekinolojely innology ya mandala azosala amatha kugwiritsidwa ntchito kuchokera mamita angapo, mpaka mazana a metres, mpaka kukula kwake. Guizhou Tianjia Parabolictofictofictority yokhala ndi mainchesi 500 amatha kugwiritsa ntchito ukadaulo wa Mose kuti muchepetse mawonekedwe a parabulic.
Post Nthawi: Disembala-24-2021
