Iindaba

Izibane zotyando ezingenathunzi zizixhobo zokukhanyisa ezibalulekileyo ngexesha lotyando. Kwizixhobo ezifanelekileyo, ezinye izalathisi zokusebenza eziphambili kufuneka zihlangabezane nemigangatho ukuze zihlangabezane neemfuno zethu zokusetyenziswa.
Okokuqala, kubalulekile ukuba nesikhanyiso esaneleyo. Ukukhanya kwesibane sotyando esingenathunzi kunokufikelela ngaphezulu kwe-150000 LUX, ekufutshane nokukhanya phantsi kokukhanya kwelanga ngeentsuku ezinelanga ehlotyeni. Nangona kunjalo, olona khanyiso lusetyenziswayo lufanelekile ngokubanzi phakathi kwe-40000 kunye ne-100000 LUX. Ukuba ikhanya kakhulu, iya kuchaphazela umbono. Izibane zotyando ezingenasithunzi kufuneka zinike ukukhanya okwaneleyo ngelixa zikwathintela ilitha elisuka kumtha kwizixhobo zotyando. I-glare inokuchaphazela umbono kunye nombono, okwenza lula ukukhathala kwamehlo koogqirha kunye nokuthintela iinkqubo zotyando. Ukukhanya kwesibane sotyando esingenamthunzi akufanele kuhluke kakhulu kukukhanya okuqhelekileyo kwigumbi lokusebenza. Eminye imigangatho yokukhanyisa imisela ukuba isikhanyiso sisonke kufuneka sibe sisinye eshumini sesikhanyiso sasekuhlaleni. Ukukhanya ngokubanzi kwegumbi lokusebenza kufuneka kube ngaphezulu kwe-1000LUX.

Okwesibini, isibane esingenasithunzi sesibane sotyando esingenathunzi kufuneka sibe phezulu, nto leyo ibalulekileyo kunye nesalathisi sokusebenza kwesibane sotyando esingenathunzi. Nasiphi na isithunzi esenziwe ngaphakathi kwendawo yokujonga utyando siya kuthintela ukujongwa ngugqirha, isigwebo kunye notyando. Isibane esilungileyo sotyando esingenathunzi kufuneka singanikeli ukukhanya okwaneleyo kuphela, kodwa sibe nokuqina okuphezulu okungenasithunzi ukuqinisekisa ukuba umphezulu kunye nezicubu ezinzulu zombono wotyando zinenqanaba elithile lokukhanya.
Ngenxa yokusasazwa komgca wokukhanya, xa ukukhanya kukhanya kwi-opaque into, isithunzi siya kwenza emva kwento. Izithunzi ziyahluka kwiindawo ezahlukeneyo kwaye ngamaxesha ahlukeneyo. Ngokomzekelo, isithunzi somntu omnye ekukhanyeni kwelanga side ekuseni kwaye sifutshane emini.
Ngokuqwalasela, sinokubona ukuba isithunzi sento ephantsi kokukhanya kombane simnyama ngakumbi phakathi kwaye asinzulu kancinci sikujikelezile. Eyona ndawo imnyama kakhulu embindini wesithunzi ibizwa ngokuba yi-umbra, kwaye indawo emnyama ejikelezileyo ibizwa ngokuba yi-penumbra. Ukwenzeka kwezi ziganeko kuhambelana ngokusondeleyo nomgaqo wokusasazwa kokukhanya. Imfihlelo inokutyhilwa ngolu lingelo lulandelayo.

Sibeka indebe ye-opaque kwi-tabletop ethe tyaba kwaye sikhanyise ikhandlela ecaleni kwayo, sibeka isithunzi esicacileyo emva kwendebe. Ukuba amakhandlela amabini alayitiwe ecaleni kwekomityi, kuya kwenziwa izithunzi ezimbini ezidibanayo kodwa zingadibaniyo. Inxalenye edibeneyo yezithunzi ezimbini iya kuba mnyama ngokupheleleyo, ngoko iya kuba mnyama ngokupheleleyo. Le yi-umbra; Ekuphela kwendawo ecaleni kwesi sithunzi esinokukhanyiswa ngekhandlela sisisiqingatha esimnyama somthunzi. Ukuba kukhanyiswe amakhandlela amathathu okanye amane okanye ngaphezulu, i-umbra iya kuncipha ngokuthe ngcembe, kwaye i-penumbra iya kubonakala kwimigangatho emininzi kwaye ngokuthe ngcembe ibe mnyama.
Umgaqo ofanayo usebenza kwizinto ezinokuvelisa izithunzi ezenziwe nge-umbra kunye ne-penumbra phantsi kokukhanya kombane. Isibane sombane sikhupha ukukhanya kwi-filament egobileyo, kwaye indawo yokukhutshwa ayiphelelanga kwindawo enye. Ukukhanya okuphuma kwindawo ethile kuvaliwe yinto, ngelixa ukukhanya okuphuma kwamanye amanqaku akunakwenzeka ukuvalelwa. Ngokucacileyo, ummandla omkhulu womzimba okhanyayo, i-umbra encinci. Ukuba sikhanyisa isangqa samakhandlela malunga nendebe ekhankanywe ngasentla, i-umbra iya kunyamalala kwaye i-penumbra iya kuba buthathaka kangangokuba ingabonakali.