Intshayelelo kuswir ikhameras
● Inkcazo kunye neMigaqo eSisiseko
Iikhamera ze-Short-Wave Infrared (SWIR) ziye zavela njengezixhobo eziyimfuneko kumacandelo ahlukeneyo afana nezolimo, ezokhuselo, ishishini kunye namashishini ezonyango. Ikhamera ye-SWIR yenzelwe ukubona ukukhanya kuluhlu lwe-SWIR ye-wavelength ye-0.9 ukuya kwi-2.5 micrometers. Ngokungafaniyo nokukhanya okubonakalayo, ukukhanya kwe-SWIR akubonakali ngeso lenyama, okwenza ezi khamera zikwazi ukuvelisa imifanekiso ephezulu kwiimeko apho ukucinga ukukhanya okubonakalayo kuya kusilela. Nokuba yeyokuhlolwa kwe-semiconductor, ukucupha, okanye ukubonwa kwezonyango, amandla eekhamera ze-SWIR abonelela ngoluhlu olubanzi lwezicelo.
● Ukubaluleka kunye nezicelo
Ukubaluleka kweekhamera ze-SWIR kulele ekukwazini kwazo ukubona ngemathiriyeli e-opaque ukuya ekukhanyeni okubonakalayo, njengeglasi okanye iipolima ezithile. Olu phawu lubaluleke kakhulu kwiinkqubo ezinjengolawulo lomgangatho ngexesha lokwenziwa kwemveliso, apho obunye ubuchwephesha bomfanekiso bunokuthi bube bufutshane. Iikhamera zeSWIR zikwagqwesa ekubekeni iliso kwezolimo, zivumela ukuchongwa kwesiqulatho samanzi kunye nempilo yezityalo, ezibaluleke kakhulu ekuphuculeni isivuno.
SWIR Camera Components
● Izixhobo zoluvo, iiLens, ii-Photodiode Arrays
Ikhamera ye-SWIR eqhelekileyo iquka izinto ezininzi ezibalulekileyo: inzwa, i-lens, i-photodiode array, kunye nenkqubo yokuguqula. Inzwa ibona ukukhanya kuluhlu lwe-SWIR kwaye ngokuqhelekileyo yenziwe ngezinto ezifana ne-Indium Gallium Arsenide (InGaAs). I-lens igxininisa ukukhanya kwe-SWIR okungenayo kwi-sensor. I-photodiode array, ehlelwe kwipatheni yegridi, inoxanduva lokubona ubunzulu bokukhanya kwe-SWIR okungenayo. Xa zidibene, ezi zixhobo zinendima ebalulekileyo kubuchule bekhamera bokufota imifanekiso ecacileyo nechanileyo.
● Iinkqubo zokuguqula
Nje ukuba ukukhanya kuthintele uluhlu lwefotodiode, kudala intlawulo yombane ngokulinganayo nokukhanya kokukhanya. Le ntlawulo iguqulwa ibe ngumqondiso wedijithali ngokusebenzisa inkqubo yokuguqula ikhamera. Olu phawu lwedijithali lucutshungulwa lube ngumfanekiso, ngokwesiqhelo kwi-grayscale, apho ipixel nganye imele umthunzi owahlukileyo wengwevu ohambelana nokukhanya kokukhanya kuloo ndawo.
IiKhamera zeSWIR ziyibamba njani imifanekiso
● Ukufunyanwa kokukhanya kwi-SWIR Range
Iikhamera ze-SWIR zithwebula imifanekiso ngokubona imbonakalo kunye nokukhutshwa kokukhanya kuluhlu lwamaza e-SWIR. Xa ukukhanya kwe-SWIR kudlula kwilensi yekhamera, kugxilwe kuluhlu lwefotodiode kwinzwa. Ipixel nganye kuluhlu ilinganisa ubunzulu bokukhanya kwaye yenze inxalenye yomfanekiso uwonke.
● Inkqubo yoKwakha umfanekiso
Inkqubo iqala ngokukhanya kwe-SWIR kubethe uluhlu lwefotodiode, kudala intlawulo eyahluka ngokukhanya kokukhanya. Le ntlawulo iguqulwa ibe yifomu yedijithali, iqhutywe yinkqubo ye-elektroniki yekhamera, kwaye ekugqibeleni iboniswe njengomfanekiso. Umfanekiso ongwevu oveliswayo unika ingcaciso eneenkcukacha, ngepixel nganye emele inqanaba elahlukileyo lokukhanya kokukhanya.
Ukusetyenziswa kwezinto eziphathekayo kwiiSensors ze-SWIR
● Indima ye-InGaAs (Indium Gallium Arsenide)
Enye yezona zinto zisetyenziswa ngokuqhelekileyo kwi-SWIR sensors yi-Indium Gallium Arsenide (InGaAs). Inzuzo ye-InGaAs ilele kumandla ayo amancinci e-bandgap xa kuthelekiswa nesilicon. Oku kuyivumela ukuba ifunxe iifotoni ezinobude obude, iyenze ilunge kumfanekiso we-SWIR. Izinzwa ze-InGaAs ziyakwazi ukubona uluhlu olubanzi lwamaza e-SWIR kwaye ziqhele ukusetyenziswa kwizicelo ezahlukeneyo kubandakanya ukubonwa kwegesi kunye nokubeka iliso kokusingqongileyo.
● Ukuthelekisa nezinye izinto
Ngelixa i-InGaAs idumile kuluhlu lwayo olubanzi kunye nobuntununtunu, ezinye izixhobo ezifana neMercury Cadmium Telluride (MCT) kunye neLead Sulfide (PbS) nazo zisetyenziswa, nangona zingaphantsi rhoqo. I-InGaAs ibonelela ngeengenelo ezininzi ngaphezulu kwezi zixhobo, kubandakanya ukusebenza kakuhle kunye namanqanaba engxolo asezantsi, iyenza ibe yeyona nto ikhethwayo kuninzi lwabavelisi beekhamera ze-SWIR kunye nababoneleli.
Izinto eziluncedo kumfanekiso weSWIR
● Isisombululo esiPhezulu kunye novakalelo
Isisombululo esiphezulu kunye novakalelo lweekhamera ze-SWIR zibenza babe luncedo kakhulu kwimisebenzi yemifanekiso echanekileyo. Banokuvelisa imifanekiso ecacileyo naphantsi kweemeko zokukhanya okuphantsi, besebenzisa ukukhanya kobusuku obunye okanye ukukhanya kwesibhakabhaka ebusuku. Esi sikhundla siluncedo ngokukodwa kumacandelo okuhlola kunye nokhuseleko.
● Ukusebenza kweendleko kunye noKuguquguquka
Iikhamera ze-SWIR ziyonga imali kuba azifuni iilensi ezibizayo okanye iinketho ezithile zecasing. Ukuguquguquka kwabo kwizicelo ezahlukeneyo-ukususela kwimifanekiso yezonyango ukuya ekuhlolweni kwemizi-mveliso-kubenza babe lutyalo-mali oluxabisekileyo kumashishini amaninzi. Ezi mpawu zinomtsalane kakhulu kuye nabani na okhangela isisombululo sokucinga esithembekileyo, nokuba ngaba ngumthengisi wekhamera ye-SWIR okanye umenzi wekhamera yaseTshayina SWIR.
Usetyenziso lweeKhamera zeSWIR
● Ukuhlolwa kweSemiconductor
Kwimveliso ye-semiconductor, ukuchaneka kubaluleke kakhulu. Iikhamera ze-SWIR zisetyenziselwe ukukwazi ukuveza iziphene kwii-wafers kunye neesekethe ezidibeneyo ezingabonakaliyo kunye neendlela eziqhelekileyo zokucinga. Esi sikhundla sandisa umsebenzi kunye nomgangatho weenkqubo zokuhlola.
● Imifanekiso yezoNyango kunye nezoLimo
Kumfanekiso wezonyango, iikhamera ze-SWIR zisetyenziselwa uxilongo olungahlaseliyo, lunikezela ngezimvo ezineenkcukacha ezinceda kuvavanyo lwezonyango. Kwezolimo, ezi khamera zinokubeka iliso kwimpilo yezityalo ngokubona umthamo wamanzi kunye neempawu zoxinzelelo kwizityalo. Olu lwazi luxabiseke kakhulu ekwandiseni ukunkcenkceshela nokuphucula izivuno zezityalo.
Umfanekiso we-SWIR kwiimeko zokukhanya okuphantsi
● Ukusetyenziswa kokukhanya kwasebusuku
Enye yezinto eziphawulekayo kwiikhamera ze-SWIR kukukwazi ukusebenza ngokufanelekileyo kwiimeko zokukhanya okuphantsi. Banokusebenzisa ukukhanya kwasebusuku, okukukukhanya okuncinane okuphuma esibhakabhakeni ebusuku, ukuvelisa imifanekiso ecacileyo. Obu buchule bubalulekile kwizicelo ezinjengokubeka iliso kunye nokhuseleko, apho ukubonakala kudla ngokuchaphazeleka.
● IiNzuzo zoKhuseleko kunye nokuBekwa kweliso
Kwindawo yokhuseleko kunye nokubeka iliso, ukukwazi kweekhamera ze-SWIR ukubona ngenkungu, inkungu, kunye nezinto ezifana neglasi zibenza babaluleke kakhulu. Banikezela ngezakhono zokucinga imini nobusuku, ukubonelela ngenqanaba elihambelanayo lokhuseleko kungakhathaliseki ixesha okanye iimeko zemozulu. Oku kuthembeka yindawo ephambili yokuthengisa kuyo nayiphi na ikhamera ye-SWIR umenzi okanye umthengisi.
Ukuqhubela phambili kweTekhnoloji kwiiKhamera zeSWIR
● Uphuhliso olutsha kunye nezinto ezintsha
Intsimi ye-SWIR imaging iyaqhubeka nokuvela. Uphuculo lwakutsha nje lubandakanya uphuhliso lwezinzwa zenkcazo ephezulu kunye namandla okusebenza ngokukhawuleza. Izinto ezintsha ezinjengomfanekiso we-multi-spectral, apho i-SWIR idityaniswe nolunye uluhlu lwamaza amaza, nayo ifumana ukutsaleka. Ezi nkqubela zithembisa ukwandisa usetyenziso kunye nokuphucula ukusebenza kakuhle kweekhamera ze-SWIR nangakumbi.
● Imizila Yekamva Nophuculo
Ukujonga phambili, ikamva leekhamera ze-SWIR libonakala lithembisa. Ngophando oluqhubekayo kunye nophuhliso, ukuphuculwa kobuchwephesha be-sensor, kunye nokudityaniswa kobukrelekrele bokwenziwa kwizisombululo zokucinga ezikrelekrele, amandla eekhamera ze-SWIR amiselwe ukufikelela kwiindawo eziphakamileyo. Olu phuculo luza kubenza babe nezixhobo eziguquguqukayo nezisebenzayo, ngaloo ndlela bandise isibheno sabo kubathengisi beekhamera ze-SWIR kunye nabavelisi beekhamera ze-SWIR zaseTshayina ngokufanayo.
Isiphelo kunye nolwazi loQhagamshelwano
● Ukushwankathela Iingenelo
Iikhamera ze-SWIR zibonelela ngezinto eziluncedo ezingenakuthelekiswa nanto malunga nesisombululo, ubuntununtunu, kunye nokuguquguquka. Bagqwesa kwiimeko zokukhanya okuphantsi kwaye banokubona ngemathiriyeli ekhanyayo ukuya ekukhanyeni okubonakalayo, kubenza baxabiseke kuwo wonke amashishini ahlukeneyo. Njengoko inkqubela phambili yetekhnoloji iqhubeka nokuphucula amandla abo, ikamva lemifanekiso ye-SWIR likhangeleka liqaqambe kakhulu.
MalungaKuhle
I-Hangzhou Savgood Technology yasekwa ngoMeyi 2013 kwaye izimisele ukubonelela ngezisombululo zobungcali zeCCTV. Iqela le-Savgood lineminyaka eyi-13 yamava kwi-Security & Surveillance industry, ukusuka kwi-hardware ukuya kwi-software, nakwiinkqubo zombini ze-analog kunye nenethiwekhi. Banikezela ngoluhlu lweekhamera ze-bi-spectrum ezinemodyuli ezibonakalayo, i-IR, kunye ne-LWIR ye-thermal, egubungela umgama obanzi wokujonga. Iikhamera ze-Savgood zithengiswa kumazwe ngamazwe kwaye zisetyenziswa kumacandelo ahlukeneyo, kubandakanywa nemikhosi yemikhosi kunye nezicelo zoshishino. Ngokusekwe kubuchwephesha babo, bakwabonelela ngeenkonzo ze-OEM & ODM ukuhlangabezana neemfuno ezithile zabathengi.
