Indlela ezibona ngayo
ilulwane ibona kanjani umhlaba?
Ayimpumputhe — amalulwane amaningi abona i-ultraviolet
'Uyimpumputhe njengelulwane' akulungile nje: amalulwane amaningi abona kahle kakhulu, futhi amaningi angaze athole ukukhanya kwe-ultraviolet. Lokho awantulayo yimininingwane ecolekile. Isithombe sawo sokubona sihlala siluvivi ngoba, embonisweni onembayo wokubamba izinambuzane ebumnyameni, athembela ku-echolocation kunalokho. Umbono uphatha isithombe esikhulu; umsindo uphatha umsebenzi wesibhamu.
Bona ngamehlo azo
Umuntu ≈ 60 cpd (20/10)
Ukubona kuka-ilulwane kucace kangakanani?
Amehlo ayo ahlukanisa cishe ama-cycles angu-1.5 ngedigri (20/400 (est.)), kanti umuntu ufinyelela cishe ku-60 cpd (20/10). Ibanga layo lokubona lisabalala cishe ngo-180°.
ilulwane ubona kanjani umuntu?
Amehlo ayo ahlukanisa cishe imijikelezo engu-1.5 ngedigri, kanti awakho angu-60, ngakho ubuso kumele busondele cishe izikhathi ezingu-40 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 ilulwane engayibona?
Umbala obuthaka noluhlaza, onokuzwela i-ultraviolet ezinhlotsheni eziningi.
Ama-photoreceptor
I-retina ebuswa amaseli e-rod, enamaseli e-cone e-S (ngokuvamile e-UV) ne-L
Iziqongo zokuzwela kwama-cone
- S (UV/mfusa)365 nm
- L (oluhlaza)550 nm
ilulwane ibona kanjani ebumnyameni?
Kuhle kakhulu: ibuswa amaseli e-rod ukuze indize ebusuku.
Ukubona kuka-ilulwane kuqhathaniswa kanjani nokomuntu?
Imininingwane yelulwane iluvivi, mhlawumbe ku-20/400 kune-20/20 yakho. Amehlo alo agcwele ama-rod ahle kakhulu ebumnyameni lapho awakho ehluleka, futhi amalulwane amaningi abona ukukhanya kwe-ultraviolet ongeke ukubone.
Yini eyisipesheli ngokubona kuka-ilulwane?
- Izinhlobo eziningi zibona i-UV
- I-echolocation ingumuzwa oyinhloko
- Ubukhali obuphansi kakhulu
Imithombo yesayensi
- Müller et al. (2009)
- Winter, López & von Helversen (2003)
Landa i-Animal Vision
Khomba ikhamera yakho kunoma yini bese ubuka umhlaba uguquka ube ukubona kwalesi silwane ngesikhathi sangempela.
