Magalasi a 3D, omwe amadziwikanso kuti "stereoscopic glasses," ndi magalasi apadera omwe angagwiritsidwe ntchito kuona zithunzi kapena zithunzi za 3D.Magalasi a stereoscopic amagawidwa mumitundu yambiri yamitundu, yodziwika kwambiri ndi yofiira buluu ndi buluu wofiira.
Lingaliro ndikulola kuti maso onse azitha kuwona chimodzi mwazithunzi ziwiri za chithunzi cha 3D, pogwiritsa ntchito njira ya kuwala kofanana ndi mitundu yosiyana.Mafilimu a 3D akukhala otchuka kwambiri pakati pa omvera.Pakadali pano, pali mitundu itatu ya magalasi a 3D pamsika: chromatic aberration, polarizing ndi kagawo ka nthawi.Mfundoyi ndi yakuti maso awiriwa amalandira zithunzi zosiyana, ndipo ubongo umagwirizanitsa deta kuchokera kumbali zonse kuti apange zotsatira zitatu.
Fiziki ya magalasi a 3D
Mafunde amagetsi ndi ma electromagnetic wave, ma electromagnetic wave ndi shear wave, shear wave vibration direction and propagation direction is perpendicular.Kwa kuwala kwachilengedwe komwe kumafalikira mbali ina, kugwedezeka kwake kumapezeka mbali zonse mu ndege yomwe imayendera njira yofalitsa.Ngati, pamene kugwedezeka ndi njira imodzi yokha kumatchedwa liniya polarized pa nthawi ino, njira zambiri liniya polarized, polarizing filimu ndi njira yabwino kwambiri, pakati pa polarized mandala filimu muli tinthu ting'onoting'ono makhiristo, ndi wogawana anakonza mu dongosolo limodzi, kotero kuti inu mukhoza kuyika kuwala kwachilengedwe kukhala polarized m'maso mwathu.Monga:
Mfundo ya magalasi a polarized 3D ndikuti diso lakumanzere ndi lamanja la magalasi ali ndi polarizer yodutsa ndi polarizer yotalika.Mwanjira imeneyi, pamene filimu yopangidwa pogwiritsa ntchito ukadaulo wa polarized kuwala ikuseweredwa, chithunzi cha disolo lakumanzere chimasefedwa kudzera pa polarizer yopingasa kuti ipeze kuwala kozungulira, ndipo chithunzi cha lens yakumanja chimasefedwa kudzera mu polarizer yotalikirapo kuti ipeze kuwala kotalika.
Kugwiritsa ntchito kuwala kwa polarized ndizomwe kanema wamakanema amafunikira - kuti maso akumanja ndi akumanzere aziwoneka mosiyana kwambiri.Popanga mapurojekitala awiri okhala ndi polarizer, ma projekitiwo amapangira mafunde owoneka bwino owoneka bwino, ndipo wowonera amatha kuwonana maso kumanja ndi kumanzere popanda kusokonezedwa ndi magalasi apadera.
M'mbuyomu, magalasi a 3D opangidwa ndi polarized adangokutidwa ndi polarizing wosanjikiza pamwamba pa magalasi wamba kuti apange filimu ya polarizing, yomwe inali yotsika mtengo kwambiri.Koma njira imeneyi ali ndi chilema, pamene kuonera filimu kukhala mowongoka, sangathe kupendekeka mutu, apo ayi kudzakhala pawiri.Tsopano, powonera filimu ya 3D, ma lens polarizing amavalidwa ndi omvera ndi polarizers ozungulira, ndiko kuti, wina amasiyidwa polarized ndipo winayo ndi polarized, zomwe zingathenso kulola maso amanzere ndi akumanja a omvera kuona zithunzi zosiyana, ndipo ziribe kanthu momwe angapendekere mutu, sipadzakhala masomphenya awiri.
Konzani m'magulu
Mitundu yamitundu yosiyanasiyana ndiyo njira yotsika mtengo kwambiri yowonera makanema.Chipangizo chosewera chidzawonetsa zithunzi zakumanzere ndi zakumanja zamitundu yosiyanasiyana (zofiira ndi zabuluu ndizofala).Ndi magalasi, diso lakumanzere limatha kuwona chithunzi cha A mtundu (monga kuwala kofiira) ndipo diso lakumanja limatha kuwona chithunzi cha B mtundu (monga kuwala kwa buluu), kuti muzindikire mawonekedwe atatu a chithunzi cha kumanzere ndi kumanja.Koma pamene mtundu uli pafupi ndi fyuluta yofiira siinathe kapena fyuluta ya buluu siinathe, padzakhala mithunzi iwiri, zimakhala zovuta kukhala ndi zotsatira zabwino.Pakapita nthawi maso adzachititsanso nthawi yochepa kusankhana mitundu chifukwa chopinga.
Njira yotsekera imatheka mwa kusinthana pakati pa mafelemu a kumanzere ndi kumanja kuti mukwaniritse zotsatira za 3D.Mosiyana ndi polarizing, shutter mode ndi teknoloji yogwira ntchito ya 3D.Wosewera wa shutter 3D amasintha mwachangu pakati pa diso lakumanzere ndi lamanja.Izi zikutanthauza kuti, panthawi imodzimodziyo, chithunzi cha 3D cha polarized chili ndi zithunzi zonse kumanzere ndi kumanja nthawi imodzi, koma mtundu wa shutter ndi zithunzi za kumanzere kapena kumanja, ndipo magalasi a 3D amasintha maso kumanzere ndi kumanja nthawi imodzi.Pamene chophimba chikuwonetsa diso lakumanzere, magalasi amatsegula diso lakumanzere ndikutseka diso lakumanja;Chophimba chikawonetsa diso lakumanja, magalasi amatsegula diso lakumanja ndikutseka diso lakumanzere.Chifukwa liwiro losinthira ndi lalifupi kwambiri kuposa nthawi yanthawi yochepa ya masomphenya amunthu, ndizosatheka kumva kuthwanima kwa chithunzi powonera filimuyo.Koma ukadaulo umasunga chithunzithunzi choyambirira cha chithunzicho, kupangitsa kuti zikhale zosavuta kwa ogwiritsa ntchito kusangalala ndi HD 3D yowona popanda kuwononga kuwala kwa chithunzicho.
Nthawi yotumiza: Aug-19-2022