Phantse zonke iifowuni zekhamera kule mihla zinokusetyenziswa njengeekhamera zedijithali.Ngokuqinisekileyo, abasebenzisi bafuna ukuthatha iifoto ezikumgangatho ophezulu nakwiimeko zokukhanya okuphantsi.Ke ngoko, ifowuni yekhamera kufuneka yongeze umthombo wokukhanya wokukhanya kwaye ayikhupheli ngokukhawuleza ibhetri yefowuni.Qala ukuvela.Ii-LED ezimhlophe zisetyenziswa ngokubanzi njengezibane zekhamera kwiifowuni zekhamera.Ngoku kukho izibane ezimbini zekhamera yedijithali onokuthi ukhethe kuzo: iityhubhu ze-xenon flash kunye nee-LED ezimhlophe.I-Xenon flash isetyenziswa ngokubanzi kwiikhamera zefilimu kunye neekhamera zedijithali ezizimeleyo ngenxa yokukhanya kwayo okuphezulu kunye nokukhanya okumhlophe.Uninzi lweefowuni zekhamera zikhethe ukukhanya kwe-LED emhlophe.

1. Isantya se-strobe se-LED sikhawuleza kunanoma yimuphi umthombo wokukhanya

I-LED iyisixhobo esiqhutywa ngoku, kwaye ukukhanya kwayo kugqitywe ngokugqithiswa kwangaphambili.Isantya se-strobe se-LED sikhawuleza kunomnye umthombo wokukhanya, kubandakanywa isibane se-xenon, esinexesha elifutshane kakhulu lokunyuka, ukusuka kwi-10ns ukuya kwi-100ns.Umgangatho wokukhanyisa wee-LED ezimhlophe ngoku uthelekiseka naleyo yezibane ezimhlophe ze-fluorescent ezipholileyo, kwaye isalathisi sokusebenza kombala sisondele kwi-85.

2. Isibane se-LED sinosetyenziso oluphantsi lwamandla

Xa kuthelekiswa nezibane ezikhanyayo ze-xenon, izibane ze-LED zinosetyenziso oluphantsi lwamandla.Kwizicelo zesibane, i-pulse current enomjikelezo omncinci womsebenzi ingasetyenziselwa ukuqhuba i-LED.Oku kuvumela umbane okhoyo kunye nokukhanya okwenziwa ngoku ngoku ukuba kwandiswe kakhulu ngexesha le-pulse yangempela, ngelixa ligcina i-avareji yangoku kunye nokusetyenziswa kwamandla e-LED ngaphakathi kokulinganisa okukhuselekileyo.

3. I-LED drive circuit ithatha indawo encinci kunye nokuphazamiseka kwe-electromagnetic (EMI) encinci

4. Isibane se-LED sinokusetyenziswa njengomthombo wokukhanya oqhubekayo

Ngenxa yeempawu zezibane ze-LED, ingasetyenziselwa usetyenziso lwemifanekiso yefowuni ephathwayo kunye nemisebenzi yesibane.