Izindaba Zesayensi Ezintsha
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Umthetho wokuthwebula i-convex lens
Kuma-optics, isithombe esakhiwe ukuhlangana kokukhanya kwangempela sibizwa ngokuthi isithombe sangempela;kungenjalo, kubizwa ngokuthi isithombe esibonakalayo.Othisha abanolwazi lwefiziksi bavame ukusho indlela enjalo yokuhlukanisa lapho besho umehluko phakathi kwesithombe sangempela nesithombe esibonakalayo: “Isithombe sangempela sithi...Funda kabanzi -
Kuyini ukuhlanekezela kwamalensi?
Lokhu kuyinkinga ngaphakathi kwendawo ye-optics, enencazelo yayo ejwayelekile kuma-optics.Isithombe esikhiqizwa ngokuthatha isithombe ngekhamera sizohlanekezelwa.Isibonelo, sonke sinolwazi lokuthatha izithombe ngamakhamera ajwayelekile ekhaya.Kukhona uhlobo lwamalensi olubizwa ngokuthi “...Funda kabanzi -
Ungalungisa kanjani ukuvuleka kwe-lens?
Lapho ulungisa iris, iris ihlale isendaweni yokuvula enkudlwana.Kuphela uma inkinobho yokuvala icindezelwa ukuze kukhululwe isivalo, indawo yokuvula ifinyela ngokuzenzakalelayo ku-f-factor ebekiwe, bese imbobo ibuyela endaweni enkulu ngemva kokuchayeka.Iyini ilensi?Ilensi ineminwe emibili...Funda kabanzi -
Ulwazi mayelana namapharamitha amalensi (lesi sihloko singahlukaniswa sibe esisodwa noma ezimbili ngokuya ngokuqukethwe)
1.Usayizi wesithombe Usayizi wesithombe nawo uwusayizi wesibuko;Usayizi wesithombe senzwa: Qhubeka nokusebenzisa usayizi wefomethi evamile yeshubhu yekhamera, usayizi ongaphandle wedayamitha weshubhu yekhamera.2.Ubude obugxilile Umqondo ubhekisela ebangeni ukusuka enkabeni yelensi ukuya endaweni okugxilwe kuyo yesango lokukhanya...Funda kabanzi
