1. Yini isihlungi?
Izihlungi zamehlo, njengoba igama liphakamisa, zingamalensi ahlunga ukukhanya.Eyaziwa nangokuthi "i-polarizer", iyisesekeli esisetshenziswa kakhulu ezithombeni.Iqukethe izingcezu ezimbili zengilazi, ezinongqimba lwezinto ezizwakalayo noma ezifanayo phakathi kwazo, futhi ngokudluliswa nokubonakaliswa kokukhanya kokuzwayo, indawo iyashintshwa ekukhanyeni nasethunzini.
2. Umgomo wokuhlunga
Isihlungi senziwe ngepulasitiki noma ingilazi futhi sengezwe ngamadayi akhethekile.Isihlungi esibomvu singadlula ukukhanya okubomvu kuphela, njalo njalo.Ukudluliswa kweshidi lengilazi kufana komoya kwasekuqaleni, futhi konke ukukhanya okunemibala kungadlula, ngakho kuba sobala, kodwa ngemva kokudaya, ukwakheka kwamangqamuzana kuyashintsha, inkomba ye-refractive nayo iyashintsha, kanye nokudlula kokuvikela ukukhanya. izinguquko zezinto.Ngokwesibonelo, lapho umsebe wokukhanya okumhlophe udlula esihlungini esiluhlaza, kukhishwa umsebe wokukhanya okuluhlaza, kuyilapho kukhishwa ukukhanya okuncane kakhulu okuluhlaza nokubomvu, futhi okuningi kwakho kudonswa isihlungi.
3. Indima yesihlungi
Ezithombeni, izihlungi zisetshenziselwa izihloko ezahlukahlukene, njengokuma kwezwe, ukuma ngobude, nempilo esekhona.Okulandelayo isingeniso esifushane somsebenzi wesihlungi:
1)Lawula umehluko (okungukuthi ukukhanya nokumnyama) kwesithombe ngokushintsha i-engeli yokukhanya kwesigameko ukuze ugqamise isihloko.
2) Sebenzisa izihlungi ezihlukene zemibala kanye ne-lens chromatic aberration ukuze ulungise ibhalansi yombala wesithombe.
3) Ukufeza umphumela othize wobuciko ngokukhetha izihlungi zemibala ehlukene.
4) Lungisa inani lokuvula noma ubude bokugxila njengoba kudingeka ukuze uthole imiphumela ekhethekile.
5) Sebenzisa njengesibuko sokuzivikela.
6) Uma ilensi yekhamera ingcolile, isetshenziselwa ukuhlanza.
7) Isetshenziswa njenge-teleconverter.
8) Isetshenziswa njenge-polarizer.
Isikhathi sokuthumela: Sep-29-2022