cmos (ƙaddamar da ƙarfe-oxide semiconductor) firikwensin ne rinjayemai ɗaukar hotofasaha da ake amfani da ita a yawancin kyamarorin dijital a yau, daga wayoyi zuwa Dslr.

cibiyar kula dawani sashi

Ƙungiyar hotunan hoto
wani matattarar photodiode shine babban abu a cikin layi tare da firikwensin cmos. kowane ɗayan irin wannan pixel yana ƙunshe da mai gano hoto, wanda shine na'urar semiconductor wanda ke samar da wutar lantarki lokacin da aka canza radiation mai shiga cikin wutar lantarki. ana canza haske zuwa cajin lantarki ta hanyar photodiode ta hanyar da

rawar da transistors
kewaye da kowane pixel a cikin firikwensin CMOS ya ƙunshi masu wucewa banda photodiode. transistors sune na'urorin lantarki waɗanda ke karɓar siginar lantarki mai rauni kuma suna ƙarfafa siginar kuma suna canja wurin siginar daga wannan yanki zuwa wani. waɗannan da'irorin,suna ɓoye halin yanzu na analog,wanda shine sakamakon karɓar

tsarin karantawa
to sai photodiodes (na'urori masu auna sigina) su bi haske kuma su canza shi zuwa cajin lantarki. mataki na gaba shine karatu. da'irori tare da transistors ga kowane pixel suna karɓar cajin lantarki da suke haɓaka kuma suna tura su zuwa kewaye wanda a ƙarshe ya canza su zuwa siginar dijital da ke fitowa daga

da kuma

Ga wani babban bayyani game da yadda suke aiki:

• mai ɗaukar hoto na CMOS yana ƙunshe da jerin hotunan hoto, tare da kowane hoto da aka yi da haske mai haske da kuma samun damar transistor.
• Lokacin da haske ya buga photodiode, yana samar da caji daidai da ƙarfin haske. wannan yana gina ƙarfin lantarki wanda ke wakiltar darajar haske.
• Ana amfani da transistors don "karanta" ƙimar ƙarfin lantarki pixel ta pixel kuma canza su zuwa bayanan dijital.
• Masu canzawa na analog zuwa dijital (adc) a kan guntu suna canza ƙarfin pixel zuwa lambobi waɗanda za a iya sarrafa su azaman hoton dijital.
• Masu sa ido na hoto na CMOS suna da abubuwan ganowa, dijital da sauran ayyuka da aka yi kai tsaye akan firikwensin kanta, ba kamar kwakwalwan CCD ba.
• wannan yana ba da damar na'urori masu auna sigina na CMOS don samun damar takamaiman pixels don ayyuka kamar rikodin bidiyo yayin da suke kiyaye wasu marasa aiki don adana ƙarfinr.

a zahiri, firikwensin CMOS suna canza photons na haske zuwa ƙimar ƙarfin lantarki wanda za'a iya yin dijital da sarrafa shi azaman hoto na dijital. wannan fasaha tana yaduwa saboda babban aikinta, ƙarancin amfani da wutar lantarki, da kuma haɗin masana'antar semiconductor.

da kuma

Tambayoyi masu yawa:

Tambaya: Menene bambanci tsakanin CMO da CCD firikwensin?

a: CCD na'urori masu auna sigina na bukatar sarrafawa a waje da guntu yayin da CMOS ke haɗa shi a cikin guntu, yana ba da damar yin aiki mafi kyau kamar ƙananan amfani da wutar lantarki da ƙarin ayyuka a cikin na'urori masu auna sigina a cikin CMOS.

da kuma

Ƙarshe

fahimtar tsarin canzawar hoto da dijital a cikin firikwensin CMO yana ba da haske game da dalilin da yasa suke mafi yawan fasahar firikwensin hoto da ke ba da wutar lantarki ga kyamarorin dijital a yau. Tsarin su na kan guntu yana ba da fa'idodi masu mahimmanci akan CCDs waɗanda suka sa su zama zaɓi mai mashahuri.