Okwangoku, iirobhothi zibomvu, ziluhlaza kwaye zityheli.Ubomvu buthetha ukuyeka, uhlaza uthetha hamba, umthubi uthetha ukulinda (okt ukulungiselela).Kodwa kwakudala, kwakukho imibala emibini kuphela: obomvu kunye nohlaza.Njengoko umgaqo-nkqubo wokuguqulwa kwetrafikhi waba ngakumbi nangakumbi, omnye umbala wongezwa kamva, ophuzi;Emva koko kongezelelwa enye irobhothi.Ukongeza, ukwanda kombala kuhambelana ngokusondeleyo nendlela abantu abasabela ngayo ngokwengqondo kunye nesakhiwo esibonakalayo.
Iretina yomntu iqulethe iiseli zefotoreceptor ezimile okwentonga kunye neentlobo ezintathu zeeseli zefotoreceptor ezimilise okwekhowuni.Iiseli zefotoreceptor ezimilise okwentonga zinovelwano ngakumbi kukukhanya okutyheli, ngelixa iintlobo ezintathu zeeseli zefotoreceptor ezimilise okwekhowuni zinovelwano kukukhanya okubomvu, ukukhanya okuluhlaza kunye nokukhanya okuluhlaza ngokulandelelanayo.Ukongeza, ukwakheka kwabantu okubonakalayo kwenza kube lula kubantu ukwahlula phakathi kobomvu kunye nohlaza.Nangona umthubi noluhlaza okwesibhakabhaka akukho nzima ukwahlula, kuba iiseli zefotoreceptor kwi-eyeball azikhathali kangako kukukhanya okuluhlaza okwesibhakabhaka, obomvu kunye nohlaza zikhethwa njengemibala yesibane.
Ngokubhekiselele kumthombo wokumisela umbala wokukhanya kwezithuthi, kukho nesizathu esingqongqo ngakumbi, oko kukuthi, ngokomgaqo we-optics ebonakalayo, ukukhanya okubomvu kunobude obude kunye nokuhanjiswa okunamandla, okunomtsalane ngakumbi kunezinye iimpawu.Ke ngoko, isetiwe njengombala wesiginali yendlela yendlela.Ngokumalunga nokusetyenziswa kohlaza njengombala wesiginali yendlela, kungenxa yokuba umahluko phakathi kohlaza nobomvu mkhulu kwaye kulula ukwahlula, kwaye umbala oyimfama we-coefficient yale mibala mibini iphantsi.
Ukongezelela, zikho ezinye izinto ngaphandle kwezi zizathu zingasentla.Ngenxa yokuba umbala ngokwawo unentsingiselo yokomfuziselo, intsingiselo yombala ngamnye ineempawu zayo.Ngokomzekelo, obomvu unika abantu umnqweno onamandla okanye uvakalelo olunzulu, olulandelwa luphuzi.Kwenza abantu bazive belumkile.Ke ngoko, inokubekwa njengemibala ebomvu kunye netyheli yetrafikhi enentsingiselo yokuthintela ukugcwala kunye nobungozi.Uhlaza luthetha ukuthamba nokuzola.
Kwaye okuluhlaza kunempembelelo ethile yokunciphisa ukukhathala kwamehlo.Ukuba ufunda iincwadi okanye udlala ikhomputha ixesha elide, amehlo akho ngokuqinisekileyo aya kuziva ediniwe okanye ene-astringent.Ngeli xesha, ukuba uphendulela amehlo akho kwizityalo eziluhlaza okanye izinto, amehlo akho aya kuba nemvakalelo engalindelekanga yokuthuthuzela.Ke ngoko, kufanelekile ukusebenzisa okuluhlaza njengombala wesiginali yendlela ngokubaluleka kwetrafikhi.
Njengoko kukhankanyiwe ngasentla, umbala wesiginali yendlela yoqobo awumiselwanga ngokungqongqo, kwaye kukho isizathu esithile.Ngoko ke, abantu basebenzisa obomvu (omele ingozi), umthubi (omele isilumkiso sokuqala) kunye nohlaza (omele ukhuseleko) njengemibala yeempawu zendlela.Ngoku iyaqhubeka nokusebenzisa kwaye isiya kwindlela engcono yomyalelo wendlela.
Ixesha lokuposa: Aug-16-2022
