Magnification vs Resolution
Kev daws teeb meem thiab kev nthuav dav yog ob lub ntsiab lus tseem ceeb uas tau tham hauv qab optics. Cov kev xav ntawm kev daws teeb meem thiab kev nthuav dav ua lub luag haujlwm tseem ceeb hauv thaj chaw xws li astronomy, astrophysics, navigation, biology thiab lwm yam uas muaj kev siv optics. Hauv tsab xov xwm no, peb yuav tham txog qhov kev daws teeb meem thiab kev nthuav dav yog dab tsi, lawv cov lus txhais, qhov kev daws teeb meem thiab qhov loj tuaj yeem hloov kho lossis hloov pauv, kev siv ntawm kev daws teeb meem thiab kev nthuav dav, qhov zoo sib xws ntawm kev daws teeb meem thiab kev nthuav dav, thiab thaum kawg qhov sib txawv ntawm kev daws teeb meem. thiab magnification.
Nyob zoo
Magnification yog cov cuab yeej sib tham hauv optics. Hauv ntau lo lus, magnification txhais tau hais tias pes tsawg lub sij hawm tus thawj daim duab yog magnified los ntawm ib yam khoom los yog ib txoj kev. Qhov yooj yim tshaj plaws ntawm magnification yog lub iav magnification. Qhov no kuj yog lub npe hu ua lub microscope yooj yim.
Nws muaj ob txoj hauv kev rau kev suav cov magnification thiab lwm yam khoom siv kho qhov muag. Cov no yog cov duab hluav taws xob thiab cov sawv cev matrix. Cov duab hluav taws xob yog ib txoj hauv kev yooj yim siv los xam cov khoom xws li kev nthuav dav, qhov deb ntawm cov duab, seb daim duab puas yog tiag tiag lossis kev xav, thiab lwm yam tshwm sim. Txoj kev matrix kuj muaj peev xwm ua tau tag nrho cov kev suav no.
Daim duab duab hluav taws xob tsim nyog rau qee qhov me me ntawm cov khoom siv kho qhov muag (1 txog 3), thiab txoj kev matrix yooj yim dua thaum nws los txog rau cov tshuab loj thiab nyuaj. Qhov loj ntawm cov khoom pom los ntawm telescopes thiab compound microscopes nyob ntawm lub focal ntev ntawm lub hom phiaj lub ntsiab thiab lub qhov muag lens. Lub hom phiaj lub ntsiab tuaj yeem yog daim iav lossis lub lens.
Resolution
Qhov kev daws teeb meem yog lwm lub ntsiab lus tseem ceeb uas tau tham hauv optics. Thaum tib neeg lub qhov muag lossis ib qho khoom siv pom pom ib yam khoom, qhov nws pom tau tiag tiag yog tus qauv diffraction tsim los ntawm cov khoom. Lub iris ntawm tib neeg lub qhov muag los yog lub aperture ntawm lub cuab yeej ua hauj lwm raws li ib tug ntse ntug, tsim diffraction. Thaum ob yam khoom, uas nyob ze rau ib leeg, pom los ntawm cov cuab yeej zoo li no, cov qauv diffraction ntawm ob yam khoom no zoo li sib tshooj. Yog tias cov qauv diffraction ntawm ob yam khoom no sib cais txaus, lawv pom tias yog ob yam khoom sib cais. Yog tias lawv sib tshooj, lawv pom tias yog ib qho khoom.
Qhov kev daws teeb meem yog lub peev xwm ntawm cov cuab yeej los daws cov khoom ze. Qhov kev daws teeb meem yog txhais raws li qhov tsawg kawg nkaus angular sib cais ntawm ob yam khoom, kom pom lawv ua cov khoom sib cais. Qhov kev daws teeb meem nyob ntawm qhov aperture ntawm lub ntsuas thiab lub wavelength ntawm lub teeb pom kev.
Qhov kev daws teeb meem kuj yog qhov sib tham hauv kev ua cov duab. Cov duab muaj qhov kev daws teeb meem tshwj xeeb uas qhia txog cov ntsiab lus nws muaj.
Kev nthuav dav thiab kev daws teeb meem
