Imisebenzi ephambili ye-aperture kwisixokelelwano sokukhanya ibandakanya umda wokuvula umqadi, ukuthintela indawo yokujonga, ukuphucula umgangatho womfanekiso, kunye nokuphelisa ukukhanya okulahlekileyo, phakathi kwezinye. Ngokukodwa:
1. I-Aperture ye-Beam yokukhawulela: I-aperture inquma ubungakanani be-flux yokukhanya engena kwinkqubo, ngaloo ndlela ibe nefuthe ekukhanyeni kunye nesisombululo sendiza yomfanekiso. Ngokomzekelo, i-diaphragm ejikelezayo kwilensi yekhamera (edla ngokubizwa ngokuba yi-aperture) isebenza njenge-diaphragm yokuvula i-diaphragm ekhawulela ubungakanani bomgca wesiganeko.
2. INdawo yokuNqanda yokuJonga: Indawo yokujonga idiaphragm isetyenzisiwe ukunciphisa ubungakanani bomfanekiso. Kwiinkqubo zefoto, isakhelo sefilimu sisebenza njenge-diaphragm yentsimi, sithintela uluhlu lomfanekiso onokuthi wenziwe kwindawo yento.
3. Ukuphucula uMgangatho woMfanekiso: Ngokubeka ngokufanelekileyo i-diaphragm, ukuphambuka okufana ne-spherical aberration kunye ne-coma kunokuncitshiswa, ngaloo ndlela kuphuculwe umgangatho womfanekiso.
4. Ukuphelisa ukuKhanya okuLahlileyo: I-diaphragm ivala ukukhanya okungekho mfanekiso, ngaloo ndlela iphucula umahluko. I-anti-stray diaphragm isetyenziselwa ukuthintela ukukhanya okuthe saa okanye ukuphindaphinda ukukhanya okubonakalisiweyo kwaye idla ngokufumaneka kwiinkqubo ezintsonkothileyo zamehlo.
Ukuhlelwa kweediaphragms kubandakanya oku kulandelayo:
I-Aperture Diaphragm: Oku kugqiba ngokuthe ngqo i-angle yokuvula ye-imaging beam kwindawo kwi-axis kwaye yaziwa ngokuba yi-diaphragm esebenzayo.
I-Field Diaphragm: Oku kuthintela uluhlu lwesithuba somfanekiso onokwenziwa, njengakwimeko yefreyim yefilimu yekhamera.
I-Anti-Noise Diaphragm: Oku kusetyenziselwa ukuvala ukukhanya okusasazekayo okanye ukuphindaphinda ukukhanya okubonakalisiweyo, ngaloo ndlela kuphuculwe umahluko kunye nokucaca kwenkqubo.
Umgaqo wokusebenza kunye nomsebenzi we-diaphragm eguquguqukayo isekelwe kumandla ayo okulawula ubungakanani bokukhanya okudlulayo ngokulungelelanisa ubungakanani bokuvula. Ngokujikeleza okanye ukutyibiliza ii-diaphragm blades, ubungakanani bokuvula bungalungiswa ngokuqhubekayo, buvumela ulawulo oluchanekileyo kumlinganiselo wokukhanya. Imisebenzi ye-diaphragm eguquguqukayo ibandakanya ukulungiswa kwe-exposure, ukulawula ubunzulu bentsimi, ukukhusela i-lens, kunye nokubumba umqadi, phakathi kwabanye. Umzekelo, phantsi kweemeko zokukhanya okuqinileyo, ukunciphisa ngokufanelekileyo i-aperture kunokunciphisa umthamo wokukhanya okungena kwi-lens, ngaloo ndlela kuthintelwe umonakalo obangelwa kukuvezwa ngokugqithisileyo.
Ixesha lokuposa: Jun-21-2025