Lilense tsa Optical-Convex le Concave Lenses
Tlhaloso ea Sehlahisoa
Lense e tšesaane ea Optical - Lense eo botenya ba karolo e bohareng e leng kholo ha e bapisoa le radii ea kobeho ea mahlakore a eona a mabeli. Matsatsing a pele, khamera e ne e e-na le lense ea convex feela, kahoo e ne e bitsoa "lense e le 'ngoe". Ka nts'etsopele ea mahlale le thekenoloji, lilense tsa sejoale-joale li na le lilense tse 'maloa tsa convex le concave tse nang le mefuta le mesebetsi e fapaneng ho theha lense e fetohang, e bitsoang "lense e kopaneng". Lense ea concave ka har'a lense ea kompone e bapala karolo ea ho lokisa liphoso tse fapaneng.
Likaroloana
Khalase ea optical e na le pepenene e phahameng, e hloekileng, e se nang 'mala, sebopeho se ts'oanang, le matla a matle a refractive, kahoo ke eona thepa e ka sehloohong e tala bakeng sa tlhahiso ea lense. Ka lebaka la sebopeho se fapaneng sa lik'hemik'hale le index ea refractive, khalase ea optical e na le:
● Khalase ea Flint - lead oxide e eketsoa sebopeho sa khalase ho eketsa index ea refractive.
● Khalase e entsoeng ka moqhaka ka ho eketsa sodium oxide le calcium oxide ho motsoako oa khalase ho fokotsa index ea eona ea refractive.
● Khalase ea moqhaka oa Lanthanum - mefuta e sa tšoaneng e sibolotsoeng, e na le litšobotsi tse babatsehang tsa index e phahameng ea refractive le tekanyo e tlaase ea ho hasana, e fanang ka maemo a ho theha lilense tse tsoetseng pele tse kholo.
Melao-motheo
Karolo ea khalase kapa ea polasetiki e sebedisoang ka lebone ho fetola tsela ya kganya kapa ho laola kabo ya kganya.
Lilense ke likarolo tsa mantlha tsa optical tse etsang microscope optical system. Likarolo tse kang lilense tsa sepheo, li-eyepieces, le li-condensers li entsoe ka lilense tse le 'ngoe kapa tse ngata. Ho ea ka libopeho tsa tsona, li ka aroloa ka mekhahlelo e 'meli: lilense tse convex (positive lenses) le concave lense (negative).
Ha lebone la khanya le bapileng le axis ea mantlha ea mahlo le feta lenseng ea convex 'me le kopana le ntlha, ntlha ena e bitsoa "focus",' me sefofane se fetang moo ho tsepamisitsoeng maikutlo ho sona se bitsoa "focal plane". ". Ho na le lintlha tse peli tse tsepamisoang maikutlo, ntlha e shebaneng le sebaka sa ntho e bitsoang "object focal point", 'me sefofane se shebaneng le sona se bitsoa "sefofane se shebaneng le ntho"; ka lehlakoreng le leng, ntlha e shebaneng le sebaka sa setšoantšo e bitsoa "image focal point". Sefofane se shebaneng le sona se bitsoa "image square focal plane".
