1.Yintoni emxinwa isihluzo band?

Izihluzizizixhobo zokukhanya ezisetyenziselwa ukukhetha ibhendi yemitha efunekayo. Izihluzo zebhanti ezimxinwa luhlobo lwesihluzo se-bandpass esivumela ukukhanya kuluhlu oluthile lwe-wavelength ukuba ludluliselwe ngokuqaqamba okuphezulu, ngelixa ukukhanya kolunye uluhlu lwamaza obude kuya kutsalwa okanye kubonakaliswe, ngaloo ndlela kuphunyezwa isiphumo sokuhluza.

I-passband ye-band band filters incinci, ngokubanzi ingaphantsi kwe-5% yexabiso le-wavelength ephakathi, kwaye inokusetyenziswa ngokubanzi kwiinkalo ezahlukeneyo, ezifana ne-astronomy, i-biomedicine, ukubeka iliso kokusingqongileyo, unxibelelwano, njl.

2.Umsebenzi womxinwa izihluzi band

Umsebenzi wesihluzo sebhanti emxinwa kukubonelela ngokukhetha ubude bobude bendlela yokubona, ikakhulu kule miba ilandelayo:

(1)Ukuhluzwa okukhethiweyo kokukhanya

Ibhendi emxinwaizihluziinokukhetha ukuhluza ukukhanya kuluhlu oluthile lwamaza obude kwaye igcine ukukhanya kuluhlu oluthile lobude bobude. Oku kubalulekile kwizicelo ezifuna ukwahlula phakathi kwemithombo yokukhanya yobude obahlukeneyo bobude okanye efuna imithombo yokukhanya yobude obukhethekileyo bomvavanyo okanye imigqaliselo.

(2)Nciphisa ingxolo elula

Izihluzi zebhendi ezimxinwa zinokuvala ukukhanya kuluhlu lwamaza obude obungeyomfuneko, zinciphise ukukhanya okulahlekileyo ukusuka kwimithombo yokukhanya okanye ukuphazamiseka kokukhanya okungasemva, kwaye ziphucule umahluko womfanekiso kunye nokucaca.

Ibhanti emxinwa izihluzo

(3)Uhlalutyo lwe-Spectral

Izihluzi zebhanti ezimxinwa zingasetyenziselwa uhlalutyo lwembonakalo. Ukudityaniswa kwezihluzo ezininzi zebhanti zingasetyenziselwa ukukhetha ukukhanya kobude obuthile kunye nokwenza uhlalutyo oluchanekileyo.

(4)Ukulawula ubunzulu bokukhanya

Izihluzi zebhanti ezimxinwa zisenokusetyenziswa ukulungisa ukukhanya komthombo wokukhanya, ukulawula ukukhanya ngokudlulisa ngokukhetha okanye ukuthintela ukukhanya kobude obuthile.

3.Umgaqo wokucoca ibhanti emxinwa

Ibhendi emxinwaizihluzisebenzisa isenzeko sophazamiseko lokukhanya ukuhambisa ngokukhetha okanye ukubonakalisa ukukhanya kuluhlu oluthile lobude bobude. Umgaqo wayo usekelwe kukuphazamiseka kunye neempawu zokufunxa ukukhanya.

Ngokuhlengahlengisa umahluko wesigaba kwisakhiwo sokupakisha iileya zefilimu ezincinci, ukukhanya kuphela kwithagethi yobude obujoliswe kuyo idluliswa ngokukhethiweyo, kwaye ukukhanya kwamanye amaza kuvaliwe okanye kubonakaliswe.

Ngokukodwa, izihluzi zebhendi ezimxinwa zihlala zipakishwe ngamacandelo amaninzi efilim, kwaye isalathiso se-refractive kunye nobukhulu bomaleko ngamnye wefilimu bulungiswa ngokweemfuno zoyilo.

Ngokulawula ubuninzi kunye nesalathisi se-refractive phakathi kweengqimba zefilimu ezincinci, umehluko wesigaba sokukhanya unokutshintshwa ukuze ufezekise iziphumo zokuphazamiseka kuluhlu oluthile lwamaza.

Xa ukukhanya okusehlo kudlula kwisihluzo sebhendi emxinwa, uninzi lokukhanya luya kubonakaliswa okanye lufunxwe, kwaye kukukhanya kuphela okukuluhlu oluthile lobude obuya kuhanjiswa. Oku kungenxa yokuba kwisakhiwo sefilimu ebhityileyo yokupakishaisihluzo, ukukhanya kobude obuthile be-wavelength kuya kuvelisa umehluko wesigaba, kwaye isiganeko sokuphazamiseka kuya kubangela ukuba ukukhanya kwe-wavelength ethile kuphuculwe, ngelixa ukukhanya kwamanye amaza kuya kucinywa kwesigaba kwaye kubonakaliswe okanye kufakwe.