lensị anya anya – convex na anya anya m
Nkọwa ngwaahịa
Igwe anya anya dị mkpa - oghere nke ọkpụrụkpụ nke akụkụ etiti dị ukwuu ma e jiri ya tụnyere radi nke curvature nke akụkụ ya abụọ. N'oge mbụ, igwefoto nwere naanị oghere convex, ya mere a na-akpọ ya "lens otu". Site na mmepe nke sayensị na teknụzụ, lenses nke oge a nwere ọtụtụ oghere convex na concave nwere ụdị na ọrụ dị iche iche iji mepụta oghere na-agbakọta, nke a na-akpọ "lens compound". Igwe oghere concave dị na oghere oghere na-arụ ọrụ nke na-agbazi ihe dị iche iche.
Atụmatụ
Ugogbe anya nwere nghọta dị elu, ịdị ọcha, enweghị agba, udidi edo, yana ike ntugharị dị mma, yabụ na ọ bụ isi akụrụngwa maka mmepụta oghere. N'ihi ihe mejupụtara kemịkalụ dị iche iche yana ndetu refractive, enyo anya nwere:
● A na-agbakwunye glazed glazed n'ime iko iko iji mee ka ndeksi refractive dịkwuo elu.
● Ugegbe okpueze mere site n'ịgbakwụnye sodium oxide na calcium oxide n'ihe mejupụtara ugegbe iji belata ndetu ihe nkwụghachi ya.
● Lanthanum okpueze iko - achọpụtara dịgasị iche iche, ọ nwere magburu onwe àgwà nke elu refractive index na ala dispersion ọnụego, nke na-enye ọnọdụ maka e kere nke nnukwu-caliber elu anya m.
Ụkpụrụ
Otu iko ma ọ bụ plastik a na-eji na luminaire gbanwee ntụziaka nke ìhè ma ọ bụ ijikwa nkesa ọkụ.
Anya anya bụ ihe kacha mkpa ngwa anya nke mejupụtara microscope ngwa anya usoro. Ngwa ndị dị ka lenses ebumnobi, nku anya, na condensers bụ nke nwere otu oghere ma ọ bụ ọtụtụ. Dị ka ọdịdị ha si dị, enwere ike kewaa ha ụzọ abụọ: lenses convex (lenses ziri ezi) na anya anya anya (anya anya na-adịghị mma).
Mgbe ìhè dị n'akụkụ axis nke isi na-agafe na oghere convex na intersects n'otu oge, a na-akpọ ebe a "elekwasị anya", ụgbọ elu na-agafe na nlebara anya na perpendicular na axis anya a na-akpọ "ụgbọ elu focal". ". Enwere isi ihe abụọ, ebe a na-ahụ maka oghere ihe a na-akpọ "ihe focal point", ebe a na-akpọkwa ụgbọ elu ebe ahụ "ihe focal plane"; N'aka nke ọzọ, a na-akpọ ebe mgbakwasị ụkwụ dị na oghere ihe onyonyo a "ebe ihe onyonyo". A na-akpọ ụgbọ elu focal na bụ "ihe oyiyi square focal flight".
