Imisebenzi eyinhloko ye-aperture kusistimu yokubona ihlanganisa indawo ekhawulela i-beam, inkambu ekhawulelayo yokubuka, ukuthuthukisa ikhwalithi yesithombe, nokuqeda ukukhanya okunhlanhlathayo, phakathi kokunye. Ngokuqondile:
1. Imbobo ekhawulela i-Beam: Imbobo inquma inani lokugeleza kokukhanya elingena kusistimu, ngaleyo ndlela libe nomthelela ekukhanyeni nasekuxazululeni kwendiza yesithombe. Isibonelo, i-diaphragm eyindilinga kwilensi yekhamera (evame ukubizwa ngokuthi imbobo) isebenza njenge-diaphragm yokuvula ekhawulela usayizi womugqa wesigameko.
2. Inkundla yokubuka ekhawulelayo: Inkambu yokubuka i-diaphragm isetshenziswa ukuze kukhawulwe ubukhulu besithombe. Kuzinhlelo zezithombe, ifreyimu yefilimu isebenza njenge-diaphragm yasensimini, ikhawulela ububanzi besithombe esingakhiwa endaweni yento.
3. Ukuthuthukisa Ikhwalithi Yomfanekiso: Ngokubeka kahle i-diaphragm, ukuphambuka okufana ne-spherical aberration kanye ne-coma kungancishiswa, ngaleyo ndlela kuthuthukiswe ikhwalithi yokucabanga.
4. Ukuqeda Ukukhanya Okulahlekile: I-diaphragm ivimba ukukhanya okungabonisi isithombe, ngaleyo ndlela ithuthukisa ukugqama. I-anti-stray diaphragm isetshenziselwa ukuvimbela ukukhanya okuhlakazekile noma okuphindaphindekayo okuboniswayo futhi ngokuvamile kutholakala kumasistimu okubona ayinkimbinkimbi.
Ukuhlukaniswa kwama-diaphragms kuhlanganisa okulandelayo:
I-Aperture Diaphragm: Lokhu kunquma ngokuqondile i-engeli yokuvula ye-imaging beam endaweni ku-eksisi futhi yaziwa nangokuthi i-diaphragm esebenzayo.
I-Field Diaphragm: Lokhu kukhawulela ububanzi bendawo besithombe esingakhiwa, njengalapho kuhlaka lwefilimu yekhamera.
I-Anti-Noise Diaphragm: Lokhu kusetshenziselwa ukuvimba ukukhanya okuhlakazekile noma ukuphindaphinda ukukhanya okubonisiwe, ngaleyo ndlela kuthuthukiswe ukugqama nokucaca kwesistimu.
Umgomo wokusebenza kanye nomsebenzi we-diaphragm eguquguqukayo kusekelwe ekhonweni layo lokulawula inani lokukhanya elidlulayo ngokulungisa usayizi wokuvula. Ngokuzungezisa noma ngokuslayida izindwani ze-diaphragm, usayizi wokuvula ungalungiswa ngokuqhubekayo, okuvumela ukulawula okunembayo kwenani lokukhanya. Imisebenzi ye-diaphragm eguquguqukayo ihlanganisa ukulungisa ukuchayeka, ukulawula ukujula kwenkambu, ukuvikela ilensi, nokubumba umsebe, phakathi kokunye. Isibonelo, ngaphansi kwezimo eziqinile zokukhanya, ukunciphisa ngokufanelekile indawo yokungena kunganciphisa inani lokukhanya okungena kulensi, ngaleyo ndlela kuvimbele umonakalo odalwe ukuchayeka ngokweqile.
Isikhathi sokuthumela: Jun-21-2025