Uma sicabangela lesi sigaba esiphathelene nezinhlobo zamehlo, zihlukaniswa kanjani izinhlobo zamehlo futhi ngani?
Context:Kunezinhlobo eziyishumi ezahlukene zamehlo - empeleni zonke izindlela zobuchwepheshe zokuthwebula isithombe esibonwayo esivame ukusetshenziswa ngabantu, ngaphandle kwe-zoom ne-Fresnel lens, zikhona emvelweni. Izinhlobo zamehlo zingahlukaniswa zibe "amehlo alula", anendawo eyodwa yokuthwebula ukukhanya, kanye "namehlo ahlanganisiwe", aqukethe inani lamalensi ahlukene abekwe ebusweni obukhulu. Phawula ukuthi elithi "lula" alisho ukuthi lincane izinga lokuyinkimbinkimbi noma lokuqonda. Eqinisweni, noma yiluphi uhlobo lwamehlo lungalungiswa cishe kunoma iyiphi indlela yokuziphatha noma imvelo. Okuwukuphela kokulinganiselwa okuqondene nezinhlobo zamehlo yilokho kwe-resolution<unk>i-physics yamehlo ahlanganisiwe iwavimbela ekufinyeleleni isinqumo esingcono kune-1°. Futhi, amehlo abekwe phezulu angafinyelela ukuzwela okukhulu kunamehlo abekwe phezulu, ngakho afaneleka kangcono ezilwaneni ezihlala ebumnyameni. Amehlo ahlukaniswa ngamaqembu amabili ngokwakhiwa kwamangqamuzana e-photoreceptor, lapho amangqamuzana e-photoreceptor e-cilliated (njengasezilwaneni ezinomgogodla) noma e-rhabdomeric. La maqembu amabili awawona ama-monophyletic; ama-cnidaria nawo anezinhlayiya ezinama-ciliated, kanti amanye ama-gastropods, kanye namanye ama-annelids anawo womabili.  Ezinye izinto eziphilayo zinamaseli azwela ukukhanya angenzi lutho ngaphandle kokubona ukuthi indawo ezungezile ikhanya noma imnyama yini, okuyinto eyanele ukuze kulandelwe isigqi semihla ngemihla. Lezi azibhekwa njengamehlo ngoba azinakho ukwakheka okwanele ukuba kubhekwe njengezitho, futhi azikhiqizi isithombe.
Amehlo ahlukaniswa abe yizinhlobo ezimbili, "amehlo alula" "namehlo ahlanganisiwe". Kulokhu, "amehlo alula" awasho ukuthi anobunzima obuncishisiwe noma ubukhali, kodwa kunalokho ukuthi anendawo eyodwa yokwamukela ukukhanya. Lokhu kuphambene "namehlo ahlanganisiwe" akhiwa ama-lens amaningi ahlukene endaweni ekhanyayo. Ngamanye amazwi, amehlo ahlukaniswa ngamaqembu amabili ngokwakhiwa kwamangqamuzana e-photoreceptor, kungaba yi-ciliated (njengasezilwaneni ezinomgogodla) noma i-rhabdomeric.