Indlela ezibona ngayo
isibankwa ibona kanjani umhlaba?
Ukubona umbala ngokukhanya kwezinkanyezi
Isibankwa sasebusuku senza umsebenzi amehlo abantu angeke awenze: sibona umbala ophelele kokuyithi, kithi, ubumnyama obucishe bube phelele. Lapho ukubona kombala komuntu kuyeka lapho kuhlwa umhlaba uba mpunga, isibankwa sigcina okuluhlaza okwesibhakabhaka, okuluhlaza ne-ultraviolet kwaso kusebenza ngokukhanya kwenyanga oluvivi. Amehlo aso empeleni akhiwe kabusha kusuka emakhonini asemini akhiwe kabusha, alungiselelwe ubusuku.
Bona ngamehlo azo
Umuntu ≈ 60 cpd (20/10)
Ukubona kuka-isibankwa kucace kangakanani?
Amehlo ayo ahlukanisa cishe ama-cycles angu-7 ngedigri (20/86), kanti umuntu ufinyelela cishe ku-60 cpd (20/10). Ibanga layo lokubona lisabalala cishe ngo-300°.
isibankwa ubona kanjani umuntu?
Amehlo ayo ahlukanisa cishe imijikelezo engu-7 ngedigri, kanti awakho angu-60, ngakho ubuso kumele busondele cishe izikhathi ezingu-9 ukuze ibone imininingwane oyibonayo. Isimo sakho nokunyakaza kwakho kufika kucacile; ukubukeka kobuso bakho akufiki.
Ukuqhathanisa imibala
How each colour shifts when seen through this animal's eyes, using the same colour model as the app. Tones a screen can't emit (such as ultraviolet) are shown as an approximation.
Yimiphi imibala isibankwa engayibona?
Igcina ukubona umbala emazingeni okukhanya lapho thina bantu singaboni umbala; ihlukanisa imibala ekukhanyeni okubuthaka kwenyanga.
Ama-photoreceptor
Ukubona ebusuku okusekelwe emaselini e-cone (yalahlekelwa amaseli e-rod yaphinda yaguqula amaseli e-cone), ikwazi ukubona i-UV
Iziqongo zokuzwela kwama-cone
- UV/oluhlaza sasibhakabhaka364 nm
- Oluhlaza sasibhakabhaka-luhlaza467 nm
- Oluhlaza521 nm
isibankwa ibona kanjani ebumnyameni?
Ukubona kwayo umbala kuzwela ukukhanya cishe izikhathi ezingama-350 ngaphezu kobomuntu ebusuku.
Ukubona kuka-isibankwa kuqhathaniswa kanjani nokomuntu?
Ukucija kwesibankwa kwasemini, cishe ku-20/86, kufinyelela ngezansi kwe-20/20 yakho. Ngokukhanya kwenyanga, lapho wena ubona izimo ezimpunga kuphela, sisabona ngombala, futhi phezu kwalokho sifinyelela ku-ultraviolet.
Yini eyisipesheli ngokubona kuka-isibankwa?
- Ukubona umbala cishe ebumnyameni
- Izikhala ezinkulu ezimile ne-optics ye-multifocal
- Izwela i-UV
Imithombo yesayensi
- Roth & Kelber (2004)
- Roth, Lundström, Kelber et al. (2009)
Landa i-Animal Vision
Khomba ikhamera yakho kunoma yini bese ubuka umhlaba uguquka ube ukubona kwalesi silwane ngesikhathi sangempela.
