A ntsuas qhov poob ntawm ntug kev nthuav davvim cov khoom geometric ntawm cov khoom thiab cov duab kos duab thiab tsis ua rau cov duab nrov lossis X-ray tawg.
Dab tsi yog qhov tsis zoo ntawm cov duab hluav taws xob?
Unsharpness yog qhov poob ntawm qhov kev daws teeb meem hauv cov duab hluav taws xob… Hauv cov tshuab hluav taws xob digital nws yog qhov loj ntawm tus neeg nyias zaj duab xis transistors.
Dab tsi yog geometric unsharpness?
Geometric unsharpness yog hais txog qhov poob ntawm lub ntsiab lus uas yog tshwm sim los ntawm geometric yam ntawm cov khoom siv hluav taws xob thiab teeb tsa. Nws tshwm sim vim cov hluav taws xob tsis yog los ntawm ib qho chaw tab sis dhau ntawm ib cheeb tsam.
Qhov luaj li cas ntawm qhov chaw focal ua rau tsis meej?
Qhov geometric unsharpness yog tshwm sim los ntawm qhov loj me ntawm qhov chaw focalthiab sib txawv nrog qhov loj. Qhov loj ntawm ib qho kev nthuav dav nyob rau hauv tus neeg mob yog vim lub divergent beam thiab qhov kev ncua deb ntawm qhov nthuav dav thiab lub dav hlau daim duab thiab lub tsom-film nrug.
Koj suav geometric unsharpness li cas?
Ug=F (t / d)
- Qhov ua kom yuam kev yog nco ntsoov ntsuas mus-thiab-los ntawm sab saum toj-sab ntawm tus qauv rau tus t/d. Yog tias qhov no yog ib daim tuab, qhov sib txawv tuaj yeem ua tau zoo los ntawm ntu nyias …… …
- Tsis txhob hnov qab siv tib lub ntsuas UNITS rau txhua qhov kev suav. (inch lossis mm, thiab lwm yam)
- Maximum Geometric Unsharpness:
