Izinzwa zokukhanya zandisa ubomi bebhetri kwaye zibonelele ngezixhasi

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NgoMeyi ka-2008, i-Intersil, isanda kwazisa i-optical esetyenziswa ngokulula kwi-digital sensor kwishishini. Xa isetyenziswe kwiifowuni eziphathwayo, iikhomputha kunye ne-electronics yabathengi, inzwa inokwandisa ubomi bebhetri kwaye inikeze umsebenzi ophuculweyo kunye nokusebenza. Zombini i-ISL29010 entsha kunye ne-ISL29013 zizivamvo ezichanekileyo ezilinganisa kwaye zifake kwidijithali ixabiso lokukhanya okujikeleze, kwaye emva koko zivumela ukufikelela kolu lwazi ngojongano oluqhelekileyo lwe-I2C.

Ngokulungelelanisa izicelo ezahlukeneyo ngokuzenzekelayo ngeemeko ezahlukeneyo zokukhanya, indlela elula yokuphucula ukusebenza kakuhle kunye nokusebenza inikezelwa kwiimveliso zokuphela. Inzuzo yokusebenza kwayo ibandakanya ukwandisa ubomi bebhetri ukusuka kwibhodi yezitshixo, ukufiphaza ukuqaqamba komboniso wesixhobo esiphathwayo kunye nokusebenza kwephaneli yeLCD, isakhelo sefoto yedijithali, kunye neekhamera zedijithali. Ukusabela okubonakalayo kwezi zixhobo kuncitshiswa ngemitha ye-infrared engeyomfuneko, nakwimeko yokukhanya okuphantsi kakhulu, umlinganiselo wokukhanya ochanekileyo unokubonelelwa.

Oku kuphunyezwa ngokudibanisa ukukhanya okupheleleyo kwisisombululo sedijithali, kubandakanywa iifotodiode ezilungelelanisiweyo ngokukodwa ukususa yonke ingxolo ye-infrared engabonakaliyo, i-15-bit eyakhelwe-ngaphakathi isimboli yokulinganisa ukuguqulwa kwedijithali ekukhanyeni okuphantsi kokukhanya kunye nengxolo yokuphelisa ngokuzenzekelayo Qaphela. Iimpawu ze-ISL29010 kunye ne-ISL29013 zikwabandakanya ukhetho lokuzuza, ukuqinisekisa ukuba abaqulunqi banokukhetha uluhlu oluguquguqukayo kunye novakalelo oluphantsi lokukhanya, ukwenzela ukuba umdlalo ogqibeleleyo uhambelana neemfuno zabo zesicelo. Lo msebenzi uphunyezwe yi-software, oko kukuthi, phakathi kobuthathaka bokukhanya obuphantsi kunye noluhlu olubanzi oluguquguqukayo, luqinisekisa ukusebenza okuphezulu kunye nokuguquguquka okungenakulinganiswa.

Isixhobo sine-voltage esebenzayo ye-2.5V ukuya kwi-3V kwaye inikezela kuphela i-250 micro-hustle currents, ephantsi kunakuphi na ukukhanya okukhoyo kwi-digital sensor chip. Ukongezelela, imodi yokucima amandla inokulawulwa yi-software ngokusebenzisa i-interface ye-I2C, ngaloo ndlela inciphisa ukusetyenziswa kwamandla ngaphantsi kwe-1 microamily.

Zombini iimodeli zinesimboli eyakhelwe-ngaphakathi i-ADC, kwaye inokuguqula imiqondiso emincinci yangoku kwimeko yengxolo yomjikelezo we-AC. I-ADC inokubonelela ngemodi edibeneyo eguquguqukayo kunye nexesha lokuguqulwa kumsebenzisi ngokusebenzisa imodi yangaphakathi okanye yangaphandle, ngelixa icinezela i-flash ye-50 Hz kunye ne-60 Hz ebangelwa ngumthombo wangaphandle. Abasebenzisi banokuhlengahlengisa uluhlu lweLux lokukhanya kokukhanya ukuze bandise ukubala / umlinganiselo wokukhanya.

Njengomsebenzi owongezelelweyo, i-ISL29013 ibandakanya i-pin yokuphazamiseka, umsebenzisi unokumisela umda wokubona ukukhanya okuphezulu okanye okuphantsi kokukhanya. I-ISL29010 ibandakanya iphini lokukhetha idilesi, ngoko ke izinzwa zokukhanya ezimbini zingasetyenziswa kwibhasi enye ye-I2C. Amaxabiso kunye nokufumaneka kwe-ISL29010 kunye ne-ISL29013 ngoku sebenzisa i-6-pin ye-ODFN iphakheji (2mmx2.

1mm) ixabiso leyunithi ye-1000 tablets kwi $ 1.2. .