Indlela ezibona ngayo
ijuba ibona kanjani umhlaba?
Cishe iziteshi ezinhlanu zombala, cishe okubona konke
Ijuba elihlekwa kakhulu lingase liphathe elinye lamasistimu amahle kunawo wonke ombala emgwaqweni wedolobha. Liyi-tetrachromat, elinezinhlobo ezine zamakhoni ombala kanye namaconsi wamafutha ahlukanisa ukukhanya emehlweni alo, ngakho isikwele esimpunga esilula cishe sivutha ngemibala namaphethini e-ultraviolet esingeke sisicabange. Konke lokhu kusonga ikhanda lalo kubanga elicishe libe ngokuphelele.
Bona ngamehlo azo
Umuntu ≈ 60 cpd (20/10)
Ukubona kuka-ijuba kucace kangakanani?
Amehlo ayo ahlukanisa cishe ama-cycles angu-12.6 ngedigri (20/48), kanti umuntu ufinyelela cishe ku-60 cpd (20/10). Ibanga layo lokubona lisabalala cishe ngo-340°.
ijuba ubona kanjani umuntu?
Amehlo ayo ahlukanisa cishe imijikelezo engu-12.6 ngedigri, kanti awakho angu-60, ngakho ubuso kumele busondele cishe izikhathi ezingu-5 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 ijuba engayibona?
Umbala ocebe kakhulu onesiteshi se-UV esengeziwe; amaconsi amafutha abhala umkhathi wemibala ngobuchule obukhulu. Ithola i-UV nokukhanya okusabalalisiwe kwesibhakabhaka ukuze iziqondise.
Ama-photoreceptor
I-Tetrachromat (izinhlobo ezi-4 zamaseli e-cone) + amaconsi amafutha anemibala
Iziqongo zokuzwela kwama-cone
- UV409 nm
- S (oluhlaza sasibhakabhaka)452 nm
- M (oluhlaza)507 nm
- L (obomvu)567 nm
ijuba ibona kanjani ebumnyameni?
Isebenza emini; inkambu ebanzi yokuthola izilwane ezizingelayo emoyeni.
Ukubona kuka-ijuba kuqhathaniswa kanjani nokomuntu?
Imininingwane ecolekile yejuba, cishe ku-20/48, ihlala ngezansi kakhulu kwe-20/20 yakho. Ngale kwalokho libona umbala wesine oyinhloko ne-ultraviolet ongenawo ama-receptor ayo, kubanga elibanzi elingu-340-degree kune-200 yakho.
Yini eyisipesheli ngokubona kuka-ijuba?
- Ibona i-ultraviolet
- Inkambu ecishe ibe ngu-360°
- Ithola ukukhanya okusabalalisiwe ukuze iziqondise
Imithombo yesayensi
- Emmerton & Delius (1980)
- Bowmaker et al. (1997)
- Hart (2001)
- Hahmann & Güntürkün (1993)
Landa i-Animal Vision
Khomba ikhamera yakho kunoma yini bese ubuka umhlaba uguquka ube ukubona kwalesi silwane ngesikhathi sangempela.
