Kev daws lub zog vs Magnification
Kev daws lub zog thiab kev nthuav dav yog ob lub ntsiab lus tseem ceeb uas tau tham hauv qab optics. Cov kev xav ntawm kev daws lub zog 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 los sib tham txog qhov kev daws teeb meem lub zog thiab kev nthuav dav yog dab tsi, lawv cov ntsiab lus thiab kev siv, thiab thaum kawg piv kev daws lub zog thiab kev nthuav dav thiab nthuav tawm qhov txawv ntawm kev daws lub zog thiab kev nthuav dav.
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 tseem hu ua lub tshuab microscope yooj yim. Muaj ob txoj hauv kev rau kev suav qhov 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 lens eyepiece.
Kev daws lub zog
Lub zog 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 uas 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 los tsim diffraction. Thaum ob yam khoom uas nyob ze 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 tau sib cais txaus, cov no pom tau tias yog ob yam khoom sib cais. Yog tias lawv sib tshooj dhau lawm, lawv pom tias yog ib qho khoom. Lub zog daws teeb meem yog lub peev xwm ntawm cov cuab yeej los daws cov khoom ze. Lub zog daws teeb meem txhais tau tias yog qhov tsawg kawg nkaus angular sib cais ntawm ob yam khoom kom pom lawv ua cov khoom sib cais. Lub zog daws teeb meem nyob ntawm qhov aperture ntawm lub ntsuas thiab lub wavelength ntawm lub teeb pom kev.
Qhov txawv ntawm Kev Magnification thiab daws Lub Hwj Chim yog dab tsi?
• Magnification muab pes tsawg zaus cov duab tau magnified los ntawm qhov ntsuas. Kev daws lub hwj chim muab lub peev xwm los sib cais ntawm ob qho khoom uas muab tso rau ze.
• Lub zog daws teeb meem yog qhov zoo lossis qhov ntse ntawm daim duab. Qhov no yog vim li cas SLR koob yees duab, uas muaj apertures loj, tsim cov duab ntse heev, whereas taw tes thiab tua lub koob yees duab tsis muaj sharpness.
• Rau cov cuab yeej xws li telescopes thiab microscopes lub zog daws kuj txiav txim siab qhov siab tshaj plaws qhov ntsuas tau txais.
