Ayini ama-Nits futhi buyini ukubaluleka kwawo ezikrinini?
njengokuhle iwebhusayithi yezobuchwepheshe esiyikho, ngokuvamile sihlanganisa izindaba zobuchwepheshe ngokuqondile noma ngokungaqondile ezihlobene nakho kokubili izinto zekhompiyutha (amakhompyutha, amalaptop namaselula) njengamasistimu okusebenza (iWindows, macOS, GNU/Linux, Android ne-iOS). Futhi, kunjalo, ngezinkinga ezihlobene namawebhusayithi ahlukahlukene kanye namanethiwekhi omphakathi aziwa kakhulu kanye nezinkundla zemiyalezo esheshayo. Ngalesi sizathu, ngezinye izikhathi sabelana ngezihloko zethu ezikhulayo zobuchwepheshe Zomphakathi, ezivame kakhulu nezisebenzayo, kanye nezimbalwa ezaziwayo nezithiyori.
Ukuba, ngokuqinisekile, isibonelo esihle salokhu kokugcina, isihloko sethu namuhla, lapho sizohlola khona «ayini amaNits» kanye nobudlelwano nokubaluleka kwayo uma isetshenziswa izikrini noma abaqaphi wezinto ezihlukahlukene zikagesi esizaziyo nesizisebenzisayo nsuku zonke.
Uma usufike lapha, uyamangala impela ngalo mqondo (amaNits) owaziwa kancane noma ongaphathwa ngabaningi uma kukhulunywa ngawo. izikrini nabaqaphi okokusebenza kwe-elekthronikhi. Njengoba, ezinye zivame ukwaziwa kangcono noma ziphathwe, njenge Lumen and Candela, lapho ukhuluma ngokukhanyisa nokukhanya ngokujwayelekile.
Nokho, ukuze uthole a ulwazi oluphelele lomsebenzisi ezindaweni zokukhanya okuphezulu, izikrini noma amamonitha ezinto zikagesi ezifana nomabonakude, iziqapha kanye nama-smartphone kumele abe a isilinganiso esihle sama-nits ukuze ukwazi ukukunikeza. Ngakho-ke, kulesi sihloko namuhla, sizogxila ekuchazeni ngokujulile konke okudingekayo ngakho. Njengakwamanye amathuba senze neminye imiqondo yezobuchwepheshe eyimfashini noma ebaluleke kakhulu.
Ayini ama-Nits?
Ngokuqondile nangokulula ngangokunokwenzeka, singasho noma sichaze ukuthi ama-nits ayiyunithi yesilinganiso sokukhanya, okungukuthi, inani lokukhanya noma i-candela elikhishwa umthombo endaweni ethile. Noma kuchazwe ngamagama alula, Ama-Nits amelela noma akale inani lokukhanya efinyelela emehlweni ethu esikrinini. Ngakho-ke, inani eliphakeme lama-Nits, sizobe sibhekisela ekukhanyeni kwesikrini.
Ukusetshenziswa kanye nokubaluleka kwama-Nits
Ukwengeza, ama-Nits avame ukusetshenziswa embonini ye-electronics ukukala ukukhanya kwesikrini. Ngokwesibonelo, iningi lemishini kagesi yesimanje ube namandla obuhlakani ahluka ukusuka kuwo 200 kuya ku-1000 Nits, kuyilapho okumbalwa (okuphezulu noma ukucushwa okukhethekile) kuvame ukudlula i-1000 Nits. Yini, engabenza bakwazi ukukhiqiza izithombe ezikhanya kakhulu nezibukhali, ngisho nasezindaweni ezikhanyiswe kahle noma ezinokukhanya okuphezulu.
Kodwa-ke, futhi njengeqiniso elibalulekile, iphesenti elihle labakhiqizi bemishini enezikrini noma abaqaphi ngokuvamile ayinikezi ulwazi olunjalo nokuningi, uma kuziwa ekukhanyeni kwabo. Ngakho-ke, nakuba bephatha ubuchwepheshe kanye nomqondo, ezingeni lomsebenzisi izikhathi eziningi ulwazi alucacisiwe noma aluvezwa ngokunemba, eshidini lobuchwepheshe noma imanuwali efanayo.
Kodwa, uma iThelevishini yakho, i-Monitor noma i-Mobile ishilo imininingwane ecaciswe kahle, kuhle kakhulu. Ngaphezu kwalokho, uma icala lingesikhathi sika- hlola futhi uqhathanise imishini ukuthenga. Ngoba, ukukhumbula ukuthi, I-Nit eyodwa ilingana nekhandlela elilodwa ngemitha yesikwele., kuyasicacela ukuthi, uma sikhuluma ngezikrini neziqaphi, isikrini esinama-nits amaningi siyakwazi ukukhipha ukukhanya okuningi kunesinama-nits ambalwa. Futhi lokho kuyinto ebalulekile, ngenxa yokuthi, ezindaweni ezikhanya kakhulu, singabona kangcono okuboniswa esikrinini.
Amanye amayunithi okulinganisa ahlobene
Njengoba sishilo ekuqaleni, i amayunithi okulinganisa ahlobene ngetimu yokukhanyisa noma ukukhanya kukhona iLumen kanye neCandela. Ngakho-ke, sizokucacisa kafushane ngamunye wabo, ukwazi ubudlelwano phakathi kwe-3.
I-Lumen
Kubhekiselwa ku I-International System of Units (SIU), okuyibhizinisi noma inhlangano ephakeme kakhulu ngokwemibandela yokubeka imiqondo yezilinganiso, a I-Lumen (LM) Kuyiyunithi yokulinganisa esivumela ukuthi silinganise ukuphuma okukhanyayo kwento. Noma ngamanye amazwi, iyunithi yokulinganisa esivumela ukuthi silinganise inani lokukhanya into engakwazi ukuyikhipha, kokubili okwemvelo nokokwenziwa.
Noma kunjalo, lokhu iyunithi ye-flux ekhanyayo ngendlela yobuchwepheshe noma yesayensi ichazwa ngokuthi okulingana nokugeleza okukhanyayo okukhishwa umthombo wamaphuzu afanayo itholakala ku-vertex ye-engeli eqinile ye-steradian eyodwa futhi ukuqina kwayo kuyikhandlela elilodwa.
Ngakho-ke, futhi ishiya imiqondo eyaziwa kancane eshiwo (i-sterradian ne-candela), lokhu kufanele kuqondwe kanje: Uma into inokukhanya okwengeziwe, iba nokukhanya okwengeziwe.
Candela
Ukucaca ngencazelo yeLumen, indlela ecacile nelula yokuqonda umqondo wale yunithi yokuqina okukhanyayo ebizwa ngokuthi. Candela (CD) imi kanje: Ukuqina okukhanyayo komthombo wokukhanya ohlangothini olunikeziwe..
Nokho, ngendlela yobuchwepheshe kanye nesayensi, futhi ephinda ecaphuna Isistimu Yamazwe Ngamazwe Yamayunithi, a Candela a iyunithi yokulinganisa amandla okukhanya, okubhekisela ekukhanyeni okukhanyayo endaweni enikeziwe evela emthonjeni okhipha imisebe ye-monochromatic yefrikhwensi engu-540 × 10^12 hertz futhi amandla ayo kuleyo ndlela angu-1/683 watts nge-steridian ngayinye.
Ngamagama alula, nokushiya i-jargon eyinkimbinkimbi futhi, lokhu kufanele kuqondwe kanje: Izilinganiso zekhandlela inani lokukhanya eliphuma endaweni ethile ngomthombo wokukhanya Ikhipha imisebe ebangeni lamaza okukhanya okubonakalayo.
Lux
Okokugcina, futhi uma uthanda isihloko samayunithi okulinganisa ahlobene nokukhanyisa noma ukukhanya, kukhona enye eyaziwa kakhulu kule ndawo ebizwa ngokuthi. I-Lux (LX), okulingana nelume elilodwa ngemitha yesikwele. Kunjalo iyunithi ethathwe ku-SIU, ngokusekelwe ku-lumen, okuyinto futhi, iyunithi etholakala esekelwe ekhandlela.
Ukusetshenziswa kwayo ezikrinini zemishini kagesi
Ekugcineni, futhi ubuyela emuva kancane esihlokweni sohlelo lokusebenza nokubaluleka kwama-Nits ezikrinini zemishini kagesi (imishini), kufanelekile ukucacisa ukuthi lezi ziyindlela yokunquma ikhwalithi yesithombe esiboniswe esikrinini. .
Isibonelo, izinga lehadiwe, uma isikrini sine- inani eliphansi lamaNits, isithombe sizoba mnyama futhi sibe bukhali kancane, okungenza kube nzima ukubuka ezimweni zokukhanya okuphezulu (ukukhanya okukhanyayo endaweni). Nakuba, ngokuphambene nalokho, uma isikrini sinenani eliphezulu lamaNits, isithombe sizokhanya futhi sibukhali, okuzokwenza kube lula ukubona lokho okuboniswa ezimweni zokukhanya okuphezulu.
Esinye isibonelo, kodwa ezingeni lesoftware, kuyindaba yokusetshenziswa kwayo ku imboni yomdlalo wevidiyo. Njengoba, emidlalweni yevidiyo, ukukhanya kungathinta indlela yokudlala kanye nokucwiliswa emdlalweni. Ngakho-ke, bangasebenzisa ama-Nits njengendlela yokuqinisekisa ukuthi imidlalo yabo ethuthukisiwe iyahambisana (ibukeka kahle) kumadivayisi ahlukene kagesi nasezimeni ezahlukene zokukhanyisa.
Ngamafuphi, futhi njengoba sekucacile, Ama-Nits ayinkomba yezobuchwepheshe enhle kakhulu ukucabangela lapho thenga noma uqhathanise ikhwalithi yesithombe yomshini we-elekthronikhi ezindaweni zokukhanya okuphezulu.
Nokho, akufanele kukhohlwe ukuthi, Ama-Nits angenye yezinto ezimbalwa zobuchwepheshe ezinquma ikhwalithi yesithombe esikrinini. Futhi yini, izici ezifana ukulungiswa, izinga lokuvuselela nokuqhathanisa, futhi idlala indima ebalulekile kule nqubo yokuhlinzeka ngolwazi lomsebenzisi oluhle kakhulu ezingeni lokubuka okuqukethwe okubonisiwe.