Umdlalo weLumens
Xa uqwalasela ukuthengwa kweprojekti yevidiyo, mhlawumbi inkcazo ecacileyo oya kuyiqonda yile nombolo yezibane. I-Lumens imilinganiselo yokukhanya okungakanani iprojekti yevidiyo inokwenziwa. Ewe, njengokuba kunjalo nezinye iinkcukacha, xa umenzi enikezela inombolo yenombolo ye-lumens, kufuneka uqaphele njengoko kungekho mgangatho ofunekayo ukuba uyisebenzise-ngoko ukulinganiswa kweLumens esetyenziswe ngenye imveliso yeeprojekti akunakufana njengolunye uphawu. Nangona kunjalo, ukuba isilinganiselo sokukhanya sikhankanywe ngokwemiqathango ye-ANSI lumens, leyo yimiqathango yoshishino ehambelanayo xa ithelekisa amabini amabini kunye bobabini basebenzisa i-ANSI njengengxelo yabo.
Ukukhanya okuMhlophe okuMhlophe ngokuBhanya koMbala
Nangona kunjalo, kukho okungakumbi ukuqwalasela ngokubaluleka kokukhanya kweprojekti yevidiyo. Xa kukhankanywe enye imilinganiselo yesikhanyiso, yintoni ekubhekiselele ngayo ukuphuma kweMhlophe ukuPhuma (WLO) okanye ukuKhanya kweMhlophe, iprojekthi iyakwazi ukuvelisa, kungekhona ukuveliswa kokukhanya okupheleleyo xa umbala uthathelwa ingqalelo. Ngokomzekelo, iiprojekti ezimbini zinokulinganiswa kwe-WLO efanayo, kodwa umbane wokukhanya obala (CLO), okanye Ubume Bokukhanya, unokuhluka.
Ukuqhathaniswa kweCandelo ngeCandelo
Ukubonisa umzekelo phakathi koMhlophe kunye noBume bokuBhanya, umfanekiso olapha ngasentla ubonisa umboniso ohlangothini ngalunye ochaphazela umbala kwimifanekiso yeprojekti yeprojekti, okanye ukukhanya, ukuphuma. Bobabini beeprojekti kwisithombe banomlinganiselo ofanayo woBume obumhlophe kodwa bahluke kwimali yoBume bokuBhanya abangayifumana.
Isizathu sokuba kukho ukuma kwiBhanya lokuBhanya kweeprojekti ezimbini kukuba iphrojekti kwicala lasekhohlo isebenzisa isakhiwo se-1-chip DLP (Optoma GT750E), ngelixa iprojekti ngakwesokudla isetyenzisiweyo se-3LCD (i-Epson PowerLight Home Cinema 750HD). Bobabini beeprojekti banesisombululo esifanayo sokubonisa isibonakaliso ( 720p ) kunye ne-ANSI lumens i-WLO ethi: 3,000. Umlinganiselo ochaziweyo owe-Optoma ngowama-3 000: 1 kwaye i-Epson ichazwa "ukuya ku-5,000: 1.
Nangona kunjalo, njengokuba ubona, iprojekti ngakwesokudla ibonakala inembala, imibala ephazamisayo, kunye nokukhanya okukhulu, kunokuba iprojekti ngakwesobunxele.
Indlela iProjekthi yeThekhnoloji yoMklamo ithinta njani Ubume bokuBhanya
Isizathu sokuba umehluko kwimifanekiso eqingqiweyo eboniswayo, oyibona kwisithombe, ihambelana ngokukodwa nokuyila kweeprojekthi ezimbini. Idizayini ye-3LCD ivumela wonke umbala omhlophe kunye nombala ukuba udlulise i-lens ngokuqhubekayo, inani elilinganayo nelinganayo yoBomhlophe kunye noBume bokuBhanya . Nangona kunjalo, kwisakhiwo se- 1-Chip DLP , ukukhanya kufuneka kuhambe ngevili elinesibhakabhaka elinesigcawu esahlukileyo sibehlulo olubomvu, oluluhlaza, nolubuluhlaza.
Kwiinkqubo ze-1-chip DLP, imibala iphindwe ngokulandelelana (ngamanye amagama, iso lakho alifumani ulwazi lombala ngokuqhubekayo), oku kungabangela umbane ophezulu obala umbane, ngokubhekiselele kwimveliso yokukhanya emhlophe. Ukuhlawulela oku, iiprojekti ze-1-chip DLP ziphindaphinda amaxesha amaninzi afaka isigaba esimhlophe ukuya kwivili lesiganeko ukuze kukhuliswe Ngoxa Ubumhlophe, kodwa inyaniso igcina ukuba umlinganiselo woBume obumhlophe ungaphantsi koBhanya obumhlophe.
Lo mahluko akaqhelekanga kumenzi weprojekti. Oko okusoloko ubona yi-Lumens ecacileyo yokushicilelwa kwezinto, kunokuba umntu onokuluhlu lweenkcukacha ezimbini zezikhanyiso, enye ye-WLO (i-White Light Output) kunye ne-CLO (i-Color Light Output), enika ubungqina obuchanekileyo bokuba bunjani Ubume Bokukhanya iprojekti inokuvelisa.
Ngakolunye uhlangothi, abaxhasi be-3LCD basebenzisa i-mirror / prism assembly (akukho tshintshi lombala ohambayo) kunye nendawo ehlukeneyo yombala oyintloko (obomvu, ukuhaha, okwesibhakabhaka), ngoko bobabini abamhlophe kunye nombala bafikelele kwiso lakho. Oku kubangela ukuBhanya koMhlophe kunye noMbala.
Njengomphumo othe ngqo wethekhnoloji esetyenziselwa ukwenza iiprojekithi ezivela kwiprojekitha nganye esetyenziswe kwisithombe esingasentla, kwiprojekti ye-1-chip ye-DLP ngakwesobunxele ukuvelisa ubuninzi beMbala njengoProfayile we-3LCD ngakwesokudla, kufuneka Ukuphakama kwe-White Light Output ngaphezu kwiprojekti ngakwesokudla - oku kuthetha iprojekti ye-1-chip DLP kufuneka isetyenziswe isibane esiphezulu, kunye nokunyuka kokusetyenziswa kwamandla.
Ukugqibela Ukuthatha-Kutheni Ubume Bokukhanya Kubalulekile
Njengoko unokubona ngomzekelo wesithombe phezulu kwiphepha, Ukukhanya koMbala kunempembelelo ngqo kwizinto ozibonayo kwesikrini. Oku kungabalulekanga ngokukodwa nje ekubonweni kwethala lekhaya, kodwa ekubukeni emagumbini apho ubukho bokuba khona ukukhanya kuhamba khona kunokukwazi ukulawulwa lula, ukubukwa kwe-3D, apho ukulahleka kobuqaqawuli xa ukhangelelwa kwiiglasi ze-3D yinto, kwaye abasebenzisa iiprojekti zevidiyo kwimfundo, kwishishini, kuquka ukuhamba, apho iprojekthi ingasetyenziselwa kwiindidi ezahlukeneyo apho ukukhanya okulula kungaziwa phambi kwesandla.
Kwakhona, ukukhanya kombala okwandisiweyo kwandisa ukuqonda kweenkcukacha ngaphakathi komfanekiso, kungakhathaliseki ukuba isisombululo sesiboniso. Eyona nto kuphela enokuthi ihlupheke xa ukukhanya kobume kwanda kwinqanaba lokulinganisa jikelele. Nangona kunjalo, kukho ezinye iimeko zokucoca ngevidiyo ezingathintela esi siphumo.
Ukufumana iinkcukacha ezingaphezulu kwi-Standard Brightness Standard, bhekisa kwiSaziso esisemthethweni kunye ne-Color Brightness Standard White Paper.
Kwakhona, ukuthelekisa iinkcukacha zobume bokukhetha ukukhetha iiprojekti zevidiyo, khangela iKrojekithi yokuPhuma kweMbala yokuPhakamisa.
Ukufumana okungakumbi malunga neLumens kunye nokuBhanya, kunye nendlela iprojekti yeprojekthi yokukhanya ehambelana ngayo nombane we-TV, bhekisa kwinqaku lethu elincinane: Iimpawu, iLumens, kunye noBhanya - i-TVs vs Video Projectors .