Tus qauv siv los xam tus nqi ntawm prism hu ua Prentice's Rule. Cov mis rau Prentice's Rule yog: Prism (diopters)=Fais fab (diopters) X Decentration (centimeters).
Prism Decentration yog dab tsi?
Yog tias lub lens fais fab txaus, txhawm rau ua kom lub prism tau sau tseg, lub lens tuaj yeem raug txiav tawm hauv nruab nrab kom ua tiav cov txiaj ntsig xav tau. Qhov no yog hu ua prism los ntawm decentration. … Prentice txoj cai hais tias prism hauv diopters (Δ) yog sib npaug rau qhov decentration nrug (c) hauv centimeters muab faib los ntawm lub lens hwj chim (D).
Prentice txoj cai nyob rau hauv optics yog dab tsi?
Prentice's Rule yog tus qauv uas txiav txim siab tus nqi ntawm prism uas yog ntxias thaum saib . qhov chaw uas tsis yog qhov chaw kho qhov muag hauv lub lens. Cov nyhuv prismatic yog qhia hauv prism. cov diopters.
Kuv yuav xam prism li cas?
Cov mis rau qhov ntim ntawm lub prism yog V=Bh, qhov B yog thaj tsam puag thiab h yog qhov siab. Lub hauv paus ntawm prism yog ib daim duab plaub. Qhov ntev ntawm daim duab plaub yog 9 cm thiab qhov dav yog 7 cm. Thaj tsam A ntawm ib daim duab plaub nrog qhov ntev l thiab dav w yog A=lw.
Cov iav prism puas nyuaj rau siv?
Rau cov neeg feem coob, cov iav tshiab yog xis nyob thiab ua kom lawv zoo dua txij li thawj zaug lawv hnav. Rau lwm tus, nws tuaj yeem siv ob peb hnub los kho cov iav.
