1.Yintoni emxinwa Icebo lebhendi?

Iifilithazizinto zamehlo ezisetyenziselwa ukukhetha ibhendi ye-radiation efunekayo. Iifilitha zebhendi ezimxinwa luhlobo lwefilitha ye-BandPass evumela ukukhanya kwi-wavelength ekhethekileyo ukuba idluliselwe kukukhanya okuphezulu, ngelixa kubonakaliswa, emva koko ukufezekisa isiphumo sokucoca.

I-Passband yeefilithi zeqela elincinci, ngokubanzi zingaphantsi kwe-5% yexabiso eliphakathi le-Central, kwaye linokusetyenziswa ngokubanzi kwiintlobo ngeentlobo, kunye ne-Astronomy, ukuBekwa kweNdawo, uNcedo, njl njl.

2.Umsebenzi onqabileyo Iifilitha zebhendi

Umsebenzi wecebo lebhendi le-band kukubonelela ngokukhethwa kwamaza okukhetha inkqubo yekhethi, ikakhulu kwezi zinto zilandelayo:

(1)Ukukhetha ukucoceka kokukhanya

Ibhendi emxinwaIifilithaNgaba ukhetha ukucoca ukukhanya kwi-wavelength eqinisekileyo kwaye ugcine ukukhanya kwi-wavelength yamaza. Oku kubalulekile kwizicelo ezifuna ukwahlula phakathi kwemithombo yokukhanya yamaza ahlukeneyo okanye afuna imithombo yokukhanya yamaza amatsha okanye okuqaphelayo.

(2)Ukunciphisa ingxolo yokukhanya

Iifilimu zebhendi ezimxinwa zinokuthintela ukukhanya kwi-UNEACERD Waveent wavelengs, ukunciphisa ukukhanya okukhohlakeleyo kwimithombo yokukhanya okanye ekuphandleni kwangasemva, kunye nokuphucula ukufakelwa komfanekiso kunye nokucaciswa.

Iifilitha zeqela elincinci

(3)Uhlalutyo olubonakalayo

Iifilitha zeqela elincinci zinokusetyenziselwa uhlalutyo lobuchule. Ukudityaniswa kweefilitha ezininzi zeqela elincinci kunokusetyenziselwa ukukhetha ukukhanya kwamaza athile kwaye enze uhlalutyo oluchanekileyo.

(4)Ukulawulwa kokukhanya kokukhanya

Iifilimu zeqela leqela elincinci linokusetyenziselwa ukuhlengahlengisa ubungakanani bomthombo wokukhanya, ukulawula ukuqina kokukhanya ngokuhambisa okanye ukuvimba ukukhanya kwamaza athile.

3.Umgaqo webhendi emxinwa yebhendi

Ibhendi emxinwaIifilithaSebenzisa i-phenomenon yokuphazamiseka kokukhanya ukukhetha okanye ukubonakalisa ukukhanya kwi-wavelength ekhethekileyo. Umgaqo wayo usekwe kuphazamiso kunye nokufumana iimpawu zokukhanya.

Ngokuhlengahlengiswa komahluko wesigaba kwimo yokufaka i-staicking yefilimu, ukukhanya kuphela kwithagethi yethagethi idluliselwe ngokuthintelwa, kwaye kubonakalisiwe.

Ngokukodwa, iifilitha zeqela elincinci zihlala zibhangiswe ngamacandelo eefilimu ezininzi, kwaye isalathiso sokuqaqamba kunye nobungqingqwa bomaleko ngamnye wefilimu ufanelekile ngokweemfuno zoyilo.

Ngokulawula ubungqingqwa kunye nesalathiso sokwenza i-Refleting phakathi kweendlela zefilimu ezinamatye, umahluko wesigaba unokuhlengahlengiswa ukufezekisa iziphumo zongenelelo kwi-wavelength ekhethekileyo.

Xa ukukhanya kwezempilo kudlula kwi-filter yebhendi emxinwa, uninzi lokukhanya luya kubonakala okanye luthathe, kwaye kukukhanya kuphela kwi-waveleth yaveliswa. Kungenxa yokuba kwi-ficking yefilimu yefilimu yeisihluzo, Ukukhanya kwe-wavelength ekhethekileyo kuya kuvelisa umahluko wesigaba, kwaye i-phenomeno yokuphazamiseka iya kubangela ukukhanya kwezaphulelo ezithile ukuba kuphuculwe, ngelixa ukukhanya kwamanye amaza aya kubonakala okanye abonakaliswe okanye afuneke okanye afuneke.