Liprism tsa Optical
Li-prism ke li-optics tse tiileng tsa khalase tse fatše 'me li bentšitsoe ka libopeho tsa geometrical le optically bohlokoa. Sekhutlo, boemo, le palo ea libaka li thusa ho hlalosa mofuta le mosebetsi. Li-prism ke li-blocks tsa khalase ea optical e nang le libaka tse bentšitsoeng tse bataletseng ka li-angles tse laoloang hantle, mofuta o mong le o mong oa prism o na le angle e ikhethileng eo tsela e bobebe e kobehang. Li-prism li sebelisetsoa ho khelosa, ho potoloha, ho khelosa, ho hasanya leseli kapa ho fetola polarization ea leseli la ketsahalo. Li bohlokoa bakeng sa ho mena lisebelisoa tsa optical kapa litšoantšo tse potolohang. Li-prism li ka sebelisoa ho fetola le ho khutlisetsa litšoantšo ho latela lits'ebetso. Likh'amera tsa SLR le libonela-hōle ka bobeli li sebelisa li-prism ho etsa bonnete ba hore setšoantšo seo u se bonang se shebile nthong e le 'ngoe. Ntho e 'ngoe ea bohlokoa eo u lokelang ho e hopola ha u khetha prism ke hore sefate se bonahatsa libaka tse ngata ka har'a optic, sena se bolela hore bolelele ba tsela ea optical ka har'a prism bo bolelele ho feta kamoo bo ka bang ka seiponeng.
Ho na le mefuta e mene ea mantlha ea li-prism tse ipapisitseng le mesebetsi e fapaneng: li-prism tsa ho hasana, ho kheloha, kapa li-prism tse bonts'ang, li-rotation prism, le li-prism tse fallang. Ho kheloha, ho falla, le li-prism tse potolohang li tloaelehile lits'ebetsong tsa litšoantšo; dispersion prism li entsoe ka thata bakeng sa leseli le qhalakanya, ka hona ha li loketse ts'ebeliso efe kapa efe e hlokang litšoantšo tsa boleng. Mofuta o mong le o mong oa prism o na le angle e itseng eo tsela ea leseli e kobehang. Ntho e 'ngoe ea bohlokoa eo u lokelang ho e hopola ha u khetha prism ke hore sefate se bonahatsa libaka tse ngata ka har'a optic, sena se bolela hore bolelele ba tsela ea optical bo bolelele ho feta kamoo bo ka bang kateng ka seipone.
Li-Prisms tsa Phatlalatso
Prism dispersion e ipapisitse le geometry ea prism le index ea eona ea ho hasana, ho ipapisitsoe le bolelele ba maqhubu le index ea refraction ea substrate ea prism. Lehlasedi la ketsahalo le mahlasedi a fetisoang ke angle e nyane ka ho fetisisa. Leqhubu le letala la khanya le kheloha ho feta bofubelu, le boputsoa ho feta bofubelu le botala; bofubelu hangata bo hlalosoa e le 656.3nm, botala e le 587.6nm, le boputsoa joalo ka 486.1nm.
Li-Prisms tsa ho kheloha, ho potoloha, le ho falla
Li-prism tse khelosang tsela ea mahlaseli, ho potoloha setšoantšo, kapa ho tlosa setšoantšo sebakeng sa sona sa pele li thusa lits'ebetsong tse ngata tsa litšoantšo. Ho kheloha ha mahlaseli hangata ho etsoa ka li-angles tsa 45 °, 60 °, 90 °, le 180 °. Sena se thusa ho fokotsa boholo ba sistimi kapa ho lokisa tsela ea ray ntle le ho ama sistimi e setseng. Li-prism tse potolohang, joalo ka li-prism tsa maeba, li sebelisoa ho potoloha setšoantšo ka mor'a hore se fetoloe. Li-prism tsa displacement li boloka tataiso ea tsela ea mahlaseli, leha ho le joalo li fetola kamano ea eona le e tloaelehileng.
