Kutalika kwapang'onopang'ono ndi gawo lofunikira lomwe limatsimikizira kuchuluka kwa kuphatikizika kapena kusiyana kwa kunyezimira kwa kuwala mumakina owoneka bwino. Izi zimagwira ntchito yofunika kwambiri pozindikira momwe chithunzi chimapangidwira komanso mtundu wa chithunzicho. Pamene kuwala kofanana kumadutsa mu lens yomwe ikuyang'ana mopanda malire, imasinthasintha pamtunda, womwe umatanthauzidwa ngati mtunda wochokera pakati pa kuwala kwa lens mpaka pano. Patsogolo pake ndi pomwe kunyezimira kwa kuwala kumadutsa pambuyo podutsa mu lens, kupanga chithunzi chakuthwa. Kuti mukwaniritse chithunzi chakuthwa cha chinthu pa infinity, mandala amayenera kuyimitsidwa motalikirapo kuchokera pamlengalenga. Kusintha kumeneku kumafotokoza chifukwa chake magalasi ambiri amatalika pamene mphete yoyang'anayo imazungulira, zomwe zimapangitsa kuyang'ana kwambiri zinthu zakutali.
Pazida zowonera, gawo la mawonedwe a angle (FOV) limatanthawuza kukula kwa mawonekedwe owoneka omwe amatengedwa ndi mandala, ndi mandala omwe amagwira ntchito ngati nsonga ya ngodya iyi. Mbali ya FOV ndiyofunikira chifukwa imatsimikizira kukula kwa dera lomwe lingawonekere. Kukula kokulirapo kwa FOV kumapangitsa kuti pakhale mawonekedwe otakata, kutengera malo ozungulira koma ndikukulitsa pang'ono. Mosiyana ndi zimenezo, ngati chinthu chandamale chikuposa ngodya iyi, sichidzalowa m'munda wa lens, zomwe zimatsogolera ku zithunzi zosakwanira kapena zopotoka. Mwachitsanzo, pojambula nyama zakuthengo, FOV yopapatiza imatha kupangitsa kuti mbali zina za nyamayo zisowa kapena malo ozungulira, pomwe gulu lalikulu la FOV limatha kujambula zambiri zakumbuyo, zomwe zimachepetsa kutchuka kwake.
Nthawi zonse, ngodya ya FOV ndi kutalika kwa focal ndizofanana. Ubalewu umatanthauza kuti utali wofupikitsa wapakati umafanana ndi ma angles akuluakulu a FOV, pamene utali wotalikirapo umabweretsa ma angles ang'onoang'ono a FOV. Magalasi a telephoto, omwe ali ndi utali wotalikirapo, ndiwabwino pakuwunika kwakutali ndi ntchito zowombera zomwe zimafuna kujambula zinthu zakutali mwatsatanetsatane. Magalasiwa amagwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana monga chitetezo cha m'matauni, kasamalidwe ka magalimoto, kuyang'anira malire ndi chitetezo cha m'mphepete mwa nyanja, kujambula nyama zakuthengo, komanso zolemba zamasewera. Mwachitsanzo, magalasi a telephoto opangidwa ndikupangidwa ndi Jinyuan Optics, okhala ndi utali woyambira 30-120mm, 5-50mm, ndi 10-50mm, amatha kukwaniritsa izi. Ma lens awa amapereka ntchito yabwino kwambiri pojambula zithunzi zatsatanetsatane zamaphunziro akutali, kuwapangitsa kukhala zida zofunika kwambiri kwa akatswiri m'magawo awa. Kuphatikiza apo, Jinyuan Optics imapereka magalasi ang'onoang'ono okhala ndi utali wotalikirapo, monga mitundu ya 1/2.7" 3MP 50mm ndi 1/1.8" 5MP 25mm, yomwe imaphatikiza mapangidwe ophatikizika okhala ndi luso lotha kujambula.
Mosiyana ndi izi, ma lens afupikitsa, omwe amadziwikanso kuti ma lens atali-angle, amapereka mawonekedwe otakata chifukwa cha ngodya zawo zazikulu za FOV. Khalidweli limawapangitsa kukhala oyenera kuyang'anira madera akulu opanda malo osawona, monga chitetezo m'mabwalo, malo osungira, ma eyapoti, ndi masiteshoni. Ma lens amakona akulu amatha kujambula mawonekedwe okulirapo, kuwonetsetsa kuti dera lomwe limayang'aniridwa likuwoneka bwino. Jinyuan Optoelectronics yaposachedwa kwambiri ya 1/2.5-inch, 1.8mm focal long-focus lens imakhala ndi mawonekedwe ambiri, mawonekedwe apamwamba a pixel, ndi mawonekedwe osalowa madzi, zomwe pamodzi zimathandizira pakuchita bwino kwake. Malo owoneka bwino amalola kuti mandala agwire malo akulu mu chimango chimodzi, pomwe mawonekedwe apamwamba a pixel amatsimikizira kuti tsatanetsatane ndi yomveka bwino komanso yodziwika bwino. Mapangidwe amadzi amachititsa kuti ikhale yoyenera kugwiritsidwa ntchito panja, ngakhale pa nyengo yovuta. Chotsatira chake, lens iyi imagwiritsidwa ntchito kwambiri pazitseko zowonekera, machitidwe owonetsetsa chitetezo, ndi makamera amagalimoto, kupereka mayankho odalirika komanso apamwamba kwambiri azithunzithunzi zamitundu yosiyanasiyana.
Mwachidule, kutalika kwapakati ndi mbali ya FOV ndi magawo awiri ofunikira omwe amakhudza kwambiri magwiridwe antchito a makina owonera. Kumvetsetsa ubale wawo ndikusankha mtundu woyenerera wa lens kutengera zosowa zenizeni kumatha kupititsa patsogolo luso la kujambula ndi kuyang'anira ntchito m'mafakitale osiyanasiyana. Kaya ndikujambula zinthu zakutali mwatsatanetsatane kapena kuyang'anira madera akulu mokwanira, kusankha koyenera kwa mandala kungapangitse kusiyana kwakukulu kuti mupeze zotsatira zabwino.
Nthawi yotumiza: Dec-23-2024