Ziziphi ii-Nits kwaye yintoni ukubaluleka kwazo kwizikrini?
njengolungileyo iwebhusayithi yetekhnoloji ukuba siyiyo, sikholisa ukugubungela imiba yezobuchwepheshe ngokuthe ngqo okanye ngokungathanga ngqo enxulumene nazo zombini izixhobo zekhompyuter (iikhompyuter, iilaptops kunye neemobiles) njengakwinkqubo yokusebenza (iWindows, macOS, GNU/Linux, Android kunye ne-iOS). Kwakhona, ewe, ngemiba enxulumene neewebhusayithi ezahlukeneyo kunye nenethiwekhi eyaziwayo kakhulu yoluntu kunye namaqonga omyalezo okhawulezileyo. Ngesi sizathu, ngamanye amaxesha sabelana ngezihloko zethu ezikhulayo zobuchwepheshe boLuntu, zombini zixhaphake kakhulu kwaye ziyasebenza, kunye nezimbalwa ezaziwayo kunye nethiyori.
Ukuba, ngokuqinisekileyo, umzekelo omhle wokugqibela, isihloko sethu namhlanje, apho siya kuhlola «zithini iiNits» kunye nobudlelwane kunye nokubaluleka kwayo xa isetyenziswa izikrini okanye iimonitha zezixhobo zombane ezahlukeneyo esizaziyo nesizisebenzisa yonke imihla.
Ukuba ufikile apha, ngokuqinisekileyo wothuswa yile mbono (Nits) encinci eyaziwayo okanye ephathwayo ngabaninzi xa kuziwa ekuthetheni ngayo. izikrini kunye nabahloli zezixhobo zombane. Ukusukela, abanye badla ngokuziwa ngcono okanye baphathwe, njenge Lumen kunye noCandela, xa uthetha ngokukhanyisa kunye nokukhanya ngokubanzi.
Nangona kunjalo, ukufumana a amava afanelekileyo omsebenzisi kwiindawo zokukhanya okuphezulu, izikrini okanye iimonitha zezixhobo zombane ezifana noomabonakude, iimonitha kunye nee-smartphones kufuneka zibe ne- umlinganiselo omhle woonomoyi ukuze ube nako ukuyinikela. Ngoko ke, kweli nqaku namhlanje, siza kugxila ekuchazeni nzulu yonke into efunekayo malunga nayo. Njengakwamanye amathuba senze ngezinye iikhonsepthi ezisefashonini okanye ezibaluleke kakhulu zetekhnoloji.
Yintoni iiNits?
Ngokuthe ngqo nangokulula kangangoko, sinokukhankanya okanye sichaze ukuba oonomoyi bayiyunithi yomlinganiselo wokukhanya, oko kukuthi, ubungakanani bokukhanya okanye i-candela ekhutshwe ngumthombo kwicala elinikiweyo. Okanye icaciswe ngamagama alula ngakumbi, Oonomoyi bamele okanye balinganise ubungakanani bokukhanya efikelela emehlweni ethu kwiscreen. Ke ngoko, inani eliphezulu leeNits, siya kuba sibhekisa kokuqaqamba kwesikrini.
Ukusetyenziswa kunye nokubaluleka kweeNits
Ukongeza, iiNits zihlala zisetyenziswa kwishishini le-elektroniki ukulinganisa ukukhanya kwesikrini. Umzekelo, ezona zixhobo zale mihla zombane ube nomthamo oqaqambileyo owahluka ukusuka 200 ukuya kwi-1000 yeeNits, ngelixa ezimbalwa (isiphelo esiphezulu okanye ukucwangciswa okukhethekileyo) ngokuqhelekileyo kudlula i-1000 Nits. Yintoni, eya kubenza bakwazi ukuvelisa imifanekiso eqaqambileyo kwaye ebukhali, nakwiindawo ezikhanyiswe kakuhle okanye ezikhanyayo.
Nangona kunjalo, kwaye njengenyaniso ebalulekileyo, ipesenteji elungileyo yabavelisi bezixhobo ezinezikrini okanye iimonitha ayidli ngokunikezela ngolwazi olunjalo nangaphezulu, xa kufikwa ekukhanyeni kwabo. Ke ngoko, nangona bephatha itekhnoloji kunye nombono, kwinqanaba lomsebenzisi amaxesha amaninzi ulwazi aluchazwanga okanye luvakaliswe ngokuchanekileyo, kwiphepha lobugcisa okanye incwadana efanayo.
Kodwa, ukuba iTelevishini yakho, iMonitor okanye iSelfowuni ithe ingcaciso icaciswe kakuhle, kulungile. Ngapha koko, ukuba ityala likwixesha le ukuvavanya nokuthelekisa izixhobo ukuthenga. Kuba, ukhumbula ukuba, INit enye ilingana nekhandlela elinye kwi square meter nganye., kucacile kuthi ukuba, xa sithetha ngezikrini kunye nabahloli, isikrini esine-nits ezininzi siyakwazi ukukhanyisa ngakumbi kunomnye onama-nits ambalwa. Kwaye yeyona nto ibalulekileyo, ngenxa yokuba, kwiindawo eziqaqambileyo, sinokubona ngcono okuboniswa kwiscreen.
Ezinye iiyunithi ezinxulumeneyo zokulinganisa
Njengoko besitshilo ekuqaleni, i iiyunithi ezinxulumeneyo zomlinganiselo kunye nomxholo wokukhanya okanye ukukhanya iLumen kunye neCandela. Ke ngoko, siza kucacisa ngokufutshane ngamnye kubo, ukwazi ubudlelwane phakathi kwe-3.
Lumen
Ibhekisa kwi INkqubo yeeYunithi zaMazwe ngaMazwe (SIU), elona qumrhu liphezulu okanye umbutho ngokwemigaqo yokuseta imiba yemilinganiselo, a Isibane (LM) Yiyunithi yomlinganiselo esivumela ukuba silinganise ukukhanya kwemveliso. Okanye ngamanye amazwi, iyunithi yokulinganisa esivumela ukuba silinganise isixa sokukhanya esinokukhutshwa yinto, okwendalo kunye neyokwenziwa.
Nangona kunjalo, oku iyunithi yokuguquguquka okukhanyayo ngendlela yobugcisa okanye yenzululwazi ngakumbi ichazwa njenge ilingana nokuguquguquka okukhanyayo okukhutshwa ngumthombo wamanqaku afanayo ibekwe kwi-vertex ye-engile eqinileyo ye-steridian enye kwaye ukuqina kwayo kuyikhandlela enye.
Ngenxa yoko, kunye nokushiya iikhonsepthi ezingaziwayo ezikhankanywe (i-steridian kunye ne-candela), oku kufuneka kuqondwe ngolu hlobo lulandelayo: Okukhona into ine-lumens eninzi, kokukhona ikhupha ukukhanya.
Candela
Ukucaca malunga nentsingiselo yeLumen, indlela ecacileyo nelula yokuqonda ingqikelelo yale yunithi yokuqina okukhanyayo ebizwa ngokuba yi-Lumen. Candela (CD) imi ngolu hlobo lulandelayo: Bubunzulu obukhanyayo bomthombo wokukhanya kwicala elinikiweyo..
Nangona kunjalo, ngendlela yobugcisa kunye nesayensi, kwaye kwakhona ukucaphula Inkqubo yaMazwe ngaMazwe yeeyunithi, uCandela ngu iyunithi yomlinganiselo wokuqina kokukhanya, ebhekisa kumandla okukhanya kwicala elinikiweyo elisuka kumthombo okhupha imitha ye-monochromatic ye-frequency 540 × 10^12 hertz kunye nokuqina kwayo kolu cala yi-1/683 watts ngesteridian nganye.
Ngamagama alula, kunye nokushiya i-jargon eyinkimbinkimbi kwakhona, oku kufuneka kuqondwe ngolu hlobo lulandelayo: Imilinganiselo yekhandlela ubungakanani bokukhanya okukhutshwa kwicala elithile ngumthombo wokukhanya Ikhupha imitha kubude bokukhanya okubonakalayo.
Lux
Okokugqibela, kwaye ukuba uthanda umxholo weyunithi yokulinganisa ehambelana nokukhanya okanye ukukhanya, kukho enye eyaziwayo kule ndawo ebizwa ngokuba Lux (LX), elilingana nelumen enye kwisikwere semitha. Kunjalo ke iyunithi ethathwe kwi-SIU, ngokusekelwe kwi-lumen, leyo yona, iyunithi ephumayo esekelwe kwikhandlela.
Ukusetyenziswa kwayo kwizikrini zezixhobo zombane
Ekugqibeleni, kunye nokubuyela umva kancinci kwisihloko sesicelo kunye nokubaluleka kweeNits kwizikrini zezixhobo zombane (izixhobo), kuyafaneleka ukucacisa ngoko ukuba ezi zindlela zokumisela umgangatho womfanekiso oboniswe kwisikrini. .
Ngokomzekelo, umgangatho wehardware, ukuba isikrini sine- inani eliphantsi leNits, umfanekiso uya kuba mnyama kwaye ungabi bukhali, onokwenza kube nzima ukujonga kwiimeko zokukhanya okuphezulu (ukukhanya okukhanyayo kwindawo). Ngokuchasene noko, ukuba isikrini sinomlinganiselo ophezulu we-Nits, umfanekiso uya kuqaqamba kwaye ubukhali, oya kwenza kube lula ukubona oko kuboniswa kwiimeko zokukhanya okuphezulu.
Omnye umzekelo, kodwa kwinqanaba lesoftware, yimeko yokusetyenziswa kwayo kwi imboni yemidlalo yevidiyo. Kuba, kwimidlalo yevidiyo, ukukhanya kunokuchaphazela umdlalo kunye nokuntywiliselwa kumdlalo. Ngoko ke, banokusebenzisa iiNits njengendlela yokuqinisekisa ukuba imidlalo yabo ephuhlisiwe iyahambelana (ikhangeleka kakuhle) kwizixhobo ezahlukeneyo zombane kunye neemeko ezahlukeneyo zokukhanyisa.
Ngokufutshane, kwaye njengoko kuye kwacaca, I-Nits yireferensi ebalaseleyo yobugcisa ukuthathela ingqalelo xa Thenga okanye uthelekise umgangatho womfanekiso yesixhobo sombane kwindawo yokukhanya okuphezulu.
Nangona kunjalo, akufanele ilibaleke ukuba, I-Nits yenye yezinto ezininzi zobugcisa emisela umgangatho womfanekiso kwiscreen. Kwaye yintoni, izinto ezifana isisombululo, ireyithi yokuhlaziya kunye nokuchasana, ikwadlala indima ebalulekileyo kule nkqubo yokunikezela ngamava omsebenzisi abalaseleyo kwinqanaba lokujonga umxholo obonisiweyo.