Lub koob yees duab soj ntsuam yog cov khoom siv pem hauv ntej kom tau txais cov duab saib xyuas. Nws siv thaj tsam array CCD duab sensor ua cov ntsiab lus tseem ceeb, ntxiv rau synchronization teeb liab tsim Circuit Court, video teeb liab ua Circuit Court thiab fais fab mov.
Nyob rau hauv xyoo tas los no, tus nqi qis MOS cov duab sensors tshiab tau tsim sai heev, thiab cov koob yees duab raws li MOS duab sensors tau pib siv hauv videophone lossis video conferencing systems uas tsis xav tau cov duab zoo. Txij li thaum qhov kev daws teeb meem thiab teeb pom kev tsis zoo ntawm MOS cov duab sensors tsis zoo li CCD cov duab sensors kom txog rau thaum cov ntsuas tseem ceeb, cov koob yees duab siv hauv kev soj ntsuam tseem yog CCD lub koob yees duab.
Cov koob yees duab muab faib ua xim dub thiab dawb thiab xim. Vim tias cov koob yees duab dub thiab dawb muaj qhov zoo ntawm kev daws teeb meem siab thiab teeb pom kev tsawg, tshwj xeeb tshaj yog lawv tuaj yeem ua duab hauv qab lub teeb infrared. Yog li ntawd, hauv TV saib xyuas, cov koob yees duab dub thiab dawb CCD tseem muaj kev sib koom ua lag luam siab. Los ntawm txoj kev, cov koob yees duab nyob rau hauv daim ntawv teev cov khoom siv soj ntsuam CCTV feem ntau tsis muaj lo ntsiab muag (tshwj tsis yog cov koob yees duab sib xyaw). Yog li ntawd, hauv kev siv tiag tiag, cov koob yees duab yuav tsum tau nruab nrog lub koob yees duab tsim nyog raws li qhov tseeb ntawm qhov chaw soj ntsuam thiab cov neeg siv khoom xav tau. Kev siv lub lens lub koob yees duab yog qhov yooj yim heev, feem ntau yog tias lub lens raug teeb tsa kom raug, lub teeb liab cable txuas nrog, thiab lub hwj chim qhib ua haujlwm. Txawm li cas los xij, hauv kev siv tiag tiag, yog tias lub lens tsis tuaj yeem teeb tsa kom raug thiab lub xeev ntawm lub koob yees duab thiab lub lens tuaj yeem hloov kho, qhov kev cia siab siv yuav tsis ua tiav. Nws yuav tsum raug sau tseg seb qhov sib txuas ntawm lub lens thiab lub koob yees duab yog C-hom interface lossis CS-hom interface.
Thaum txhim kho lub koob yees duab soj ntsuam lub lens, ua ntej tshem lub koob yees duab thiab lub npog tiv thaiv ntawm lub lens, thiab maj mam muab lub lens rau hauv lub lens interface ntawm lub koob yees duab thiab ua rau hauv qhov chaw. Rau qhov tsis siv neeg iris lo ntsiab muag, cov kab tswj ntawm lub lens yuav tsum tau txuas nrog lub koob yees duab tsis siv neeg iris interface. Rau lub cev muaj zog ob lub lens lossis peb lub lens sib txawv, tsuav yog lub lens tig nyob rau hauv qhov chaw, tsis tas yuav kho nws qhov nyiaj tshuav ib ntus (tsuas yog nyob rau tom qab Tom qab kev kho kom pom tseeb, nws yog qhov yuav tsum tau ua kom tiav thaum kawg calibrate. nws balance state).
Kho lub lens aperture thiab tsom. Tua lub kaw lus hluav taws xob thiab cov teeb pom kev rov qab hloov pauv ntawm lub koob yees duab, tsom lub koob yees duab ntawm qhov xwm txheej kom saib xyuas, thiab kho lub lens aperture thiab tsom lub nplhaib kom ua kom zoo dua cov duab ntawm lub monitor. Yog tias lub koob yees duab siv nyob rau hauv qhov xwm txheej uas lub teeb pom kev hloov pauv zoo heev, nws yog qhov zoo tshaj plaws los txuas lub koob yees duab iris thiab teeb lub koob yees duab' lub tshuab hluav taws xob hloov mus rau OFF. Yog tias phau ntawv iris raug xaiv, lub tshuab hluav taws xob hloov hluav taws xob ntawm lub koob yees duab yuav tsum tau teeb tsa rau ON, thiab lub lens iris yuav tsum qhib kom dav li sai tau thaum daim ntawv thov qhov chaw yog qhov ci tshaj plaws (lub teeb ci ntsa iab yog qhov loj tshaj) thiab cov duab tseem nyob. qhov zoo tshaj plaws (tsis txhob ua kom cov duab ci dhau). Dawb thiab overload), lub lens yog kho. Nruab lub hau tiv thaiv thiab mount lub bracket. Thaum lub sij hawm kev hloov kho saum toj no, yog tias koj tsis xyuam xim qhib lub lens aperture kom dav li sai tau thaum lub teeb ci, tab sis kaw nws me me li sai tau, lub koob yees duab' lub kaw lus hluav taws xob yuav raug hloov kho. mus rau qhov qis qis, Yog li nws tseem tuaj yeem tsim cov duab zoo dua ntawm tus saib; tab sis thaum lub teeb tsaus, vim lub lens aperture kuj me me, thiab lub kaw lus hluav taws xob twb tau qeeb tshaj plaws (1/50s), cov duab nyob rau lub sijhawm no yuav dim.
