Lub ntsiab nti ntawm lub koob yees duab - CMOS duab sensor

Lub ntsiab nti ntawm lub koob yees duab - CMOS duab

sensor

Lub CMOS (complementary hlau oxide semiconductor) duab sensor lub tswv yim kev khiav hauj lwm tau pom nyob rau hauv lub thib ob ib nrab ntawm lub xyoo 1960, tab sis cov cuab yeej tsis tau ua lag luam mus txog rau thaum microfabrication technology evolved txaus nyob rau hauv 1990s.CCD (them khoom sib txuas) lossis CMOS (cov khoom siv hlau hlau oxide semiconductor ntxiv) cov duab sensors feem ntau siv rau niaj hnub no cov koob yees duab digital thiab xov tooj ntawm tes.

CCD thiab CMOS yog ob qho tib si semiconductor uas ua haujlwm li "qhov muag hluav taws xob."

Lawv ob leeg siv photodiodes, tab sis lawv cov txheej txheem ntau lawm thiab cov teeb liab nyeem txoj kev sib txawv.Txawm hais tias CCD thev naus laus zis tau nrov thaum pib vim muaj kev nkag siab zoo dua thiab cov duab zoo, CMOS sensors tau pib ntau dua CCD sensors hauv ntim ntim khoom pib xyoo 2004.

Cov ntaub ntawv tus nqi nrawm dua li CCD.
Ib qho array ntawm capacitors nyob rau hauv lub charge-coupled ntaus ntawv (CCD) duab sensor nqa ib tug hluav taws xob nqi raws li lub teeb siv ntawm ib pixel.Txhua tus capacitor cov ntsiab lus raug xa mus rau nws cov neeg nyob ze los ntawm kev tswj xyuas Circuit Court, thiab lub capacitor kawg hauv cov array empties nws cov nqi mus rau hauv lub amplifier charger.CCD sensors paub txog lawv txoj kev xa cov ntaub ntawv thoob-brigade.

Ib qho ntxiv hlau oxide semiconductor (CMOS) duab sensor

Ntawm qhov tod tes, muaj lub photodiode thiab CMOS transistor hloov rau txhua pixel, uas tso cai rau lub pixel teeb liab yuav tsum tau amplified nyias.Cov teeb liab pixels tuaj yeem nkag ncaj qha thiab ua ntu zus, nrawm dua li CCD sensor, los ntawm kev tswj cov matrix ntawm cov keyboards.Lwm qhov zoo dua ntawm kev muaj lub suab nrov rau txhua pixel yog tias nws txo cov suab nrov uas tshwm sim thaum nyeem cov hluav taws xob teeb liab hloov dua siab tshiab los ntawm lub teeb sib sau.

CMOS duab sensors tsis tshua kim dua los tsim dua CCD cov duab sensors vim tias cov khoom siv hluav taws xob semiconductor uas twb muaj lawm tuaj yeem rov siv dua rau lawv cov khoom.Tsis zoo li CCD sensors, uas siv high-voltage analog circuits, CMOS sensors siv ib tug me me digital circuitry uas siv tsawg zog thiab yog, nyob rau hauv lub tswv yim, tsis muaj smear ( ntsug dawb streak nyob rau hauv ib tug kaj-teeb duab) thiab blooming (kev ua txhaum ntawm cov duab xws li. raws li cov pob dawb).Vim tias cov logic circuitry tuaj yeem muab tso rau hauv lub nti thaum lub sijhawm tsim khoom, CMOS sensors nrog rau ntawm daim duab ua haujlwm tau tsim los rau cov ntawv thov xws li kev lees paub cov duab thiab pom kev pom, nrog qee cov khoom siv tam sim no.

Ronghua, yog cov chaw tsim khoom tshwj xeeb hauv R & D, customization, ntau lawm, muag thiab kev pabcuam ntawm lub koob yees duab modules, USB lub koob yees duab modules, lo ntsiab muag thiab lwm yam khoom.Yog xav tiv tauj peb, thov:
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