2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Rays ntawm lub teeb thaum uas tig mus rau lub hauv paus axis ntawm daim iav concave yuav tshwm sim los sib sau ua ke ntawm ib qho taw qhia ntawm daim iav qhov chaw ntawm daim iav ncej thiab nws qhov chaw ntawm curvature. Qhov no ua rau qhov no yog daim iav converging thiab lub ntsiab lus uas cov rays converge yog hu ua lub focal point los yog tsom.
Puas yog lub ntsiab lus ntawm daim iav concave zoo lossis tsis zoo?
Lub focal ntev f ntawm daim iav concave yog qhov zoo, vim nws yog daim iav converging. Daim duab 2. (a) Parallel rays reflected from a large spherical mirror do not all crossed at a common point. (b) Yog tias daim iav kheej kheej me me piv nrog nws lub vojvoog ntawm curvature, cov kab hluav taws xob sib txuas tau tsom mus rau qhov sib txawv.
Puas tsom ntawm daim iav concave ib txwm tsis zoo?
Qhov tsom ntawm daim iav concave yog nyob rau hauv pem hauv ntej ntawm daim iav ntawm sab laug, yog li focal ntev ntawm daim iav concave yuav tsis zoo (thiab sau nrog kos npe rho tawm, hais, -10 cm).
Yuav ua li cas koj pom qhov tsom ntawm daim iav concave?
Los ntawm kev tau txais cov duab tiag ntawm ib qho khoom nyob deb ntawm nws qhov kev tsom, qhov ntev ntawm lub iav concave tuaj yeem kwv yees raws li qhia hauv daim duab. Lub focal ntev ntawm daim iav convex yog qhov zoo, whereas ntawm daim iav concave yog qhov tsis zoo. Tib yam kuj tuaj yeem ua pov thawj los ntawm kev siv daim iav mis: (1/f=1/v +1/u).
Puas yog qhov tsom ntawm daim iav concave tiag tiag lossis virtual?
Daim iav concave reflecting nto yog khoovsab hauv kom pom tseeb, piv txwv li, deb ntawm lub teeb ci. Thaum lub nkhaus bounces lub teeb mus rau ib qho chaw, lawv tsim ib daim duab. Nws muaj tseeb tias daim iav convex muaj qhov tsom xam virtual lossis daim iav concave muaj qhov tseeb tiag.
Pom zoo:
Lub tsom iav siv lead ua nyob rau hauv mzulft nyob qhov twg?
Lub Focusing Crystal tuaj yeem pom hauv cov khoom muag ntawm Falmer. Nws tuaj yeem yooj yim rau kev saib xyuas cov yeeb ncuab uas koj tua thiab ua rau tsis meej pem hauv qhov kev tshawb nrhiav "Qhia kom pom qhov tsis pom" thaum koj nrhiav tsis tau lub Crystal.
Vim li cas cov tsom iav tsom iav meme?
Goggles tau yog ib lo lus tsis raug cai rau "cov tsom iav," rov qab mus rau 1700s. Clout tau xa mus rau ib qho kev cuam tshuam hauv zej zog txij li xyoo 1950, ib lo lus uas tau nce siab hauv lub hnub nyoog social-media. Los ntawm Clout Goggles, pom tau tias, Curry txhais tau tias leej twg tuaj yeem rub tawm hnav cov tsom iav tau swag thiab sway.
Yuav tsum looj tsom iav tsis muaj zog dua li tsom iav?
Cov tshuaj tiv thaiv kab mob thiab tsom iav yog tsis zoo ib yam. Lub lens tiv tauj yuav tsum phim qhov loj thiab cov duab ntawm koj lub qhov muag. … Cov tshuaj tiv thaiv kab mob ua kom ua raws li cov tshuaj tsom iav yuav muaj zog dua li qhov tsim nyog, uas tuaj yeem ua rau muaj teeb meem tsis pom kev.
Cov tsom iav tsom iav yog dab tsi?
Spectacle Magnifiers yog ib qho ntawm ntau pawg ntawm kev pom kev pom muaj rau siv los ntawm qhov tsis pom kev pom. Eschenbach muaj cov tshuab clip-on, prismatic eyewear, noves eyewear thiab high-powered magnifying spectacles nyob rau hauv ntau yam designs thiab magnification powers.
Vim li cas tsom iav tsom iav?
Anti-reflective txheej (tseem hu ua "AR txheej" lossis "anti-glare txheej") txhim kho qhov pom kev, txo qhov muag qhov muag thiab ua rau koj cov tsom iav zoo nkauj dua. … Los ntawm kev tshem tawm cov kev xav, AR txheej kuj ua rau koj lub tsom iav qhov muag pom ze li qhov tsis pom yog li cov neeg tuaj yeem pom koj lub qhov muag thiab lub ntsej muag kom pom tseeb dua.
