Chengdu Rainpoo Technology Co., Ltd.

Chengdu Rainpoo Technology Co., Ltd.

Chengdu Rainpoo Technology Co., Ltd.

WHY RAINPOO

Ta yaya ɓarkewar chromatic da murdiya suna shafar ima.files

1.mutuwar chromatic

1.1 Menene rashin haɓaka chromatic

Aberration na chromatic yana haifar da bambanci a cikin transmissivity na kayan. Hasken ƙasa an haɗa shi da yankin haske mai ganuwa tare da kewayon tsayi na 390 zuwa 770 nm, sauran kuwa sune bakan da idanun ɗan adam baya iya gani. Saboda kayan suna da fizge-fizgen rarrabewa daban-daban na tsawon haske mai launi, kowane haske mai launi yana da matsayin hoto daban-daban da kuma faɗuwa, wanda ke haifar da chromatism na matsayi.

1.2 Ta yaya ɓarkewar chromatic ya shafi ingancin hoto

(1) Saboda tsayin daka daban da kuma yadda yake nuna launuka daban-daban na haske, ba za a iya mayar da hankali ga abu mai kyau ba daidai ba, don haka hoton zai dusashe.

(2) Hakanan, saboda girma daban-daban na launuka daban-daban, za a sami "layukan bakan gizo" a gefen maki-hoton.

1.3 Ta yaya ɓoyewar chromatic ya shafi samfurin 3D

Lokacin da maki-hotunan suke da “layukan bakan gizo”, zai shafi software ɗin samfurin 3D don dacewa da ma'ana ɗaya. Don abu iri ɗaya, daidaitawar launuka uku na iya haifar da kuskure saboda "layukan bakan gizo". Lokacin da wannan kuskuren ya tara girma, zai haifar da "daidaitawa".

1.4 Yadda za a kawar da ɓarna na chromatic

Yin amfani da rarrabuwa mai rarrafe da watsawa daban-daban na haɗin gilashi na iya kawar da ɓarkewar chromatic. Alal misali, yi amfani da ƙididdigar ƙarancin Refractive da ƙaramin gilashin watsawa azaman ruwan tabarau na convex, da kuma babban ƙyamar Refractive da babban gilashin watsawa a matsayin ruwan tabarau mai lanƙwasa.

Irin wannan ruwan tabarau mai hadewa yana da gajarta mai tsayi a tsayin tsakiya da kuma tsayi mai tsawo a cikin gajere da gajere. Ta hanyar daidaita yanayin tabarau na tabarau, tsayin daka na shuɗin shuɗi da ja na iya zama daidai, wanda hakan ke kawar da ɓarna na chromatic.

Sakanni na biyu

Amma ba za a iya kawar da ɓarkewar chromatic gaba ɗaya ba. Bayan amfani da ruwan tabarau da aka haɗu, ragowar ɓarkewar chromatic ana kiranta "sakandare na biyu". Tsawon tsawon zangon ruwan tabarau, ƙarancin haɓakar chromatic. Sabili da haka, don binciken jirgi wanda ke buƙatar ƙididdigar madaidaiciya, ba za a iya watsi da zangon sakandare ba.

A ka'ida, idan ana iya raba zangon haske zuwa tazarar shudi-kore da kore-ja, kuma ana amfani da fasahohin achromatic a wadannan tsaka-tsakin guda biyu, za a iya kawar da bakan gizo na asali. Koyaya, an tabbatar dashi ta hanyar lissafi cewa idan achromatic don koren haske da jan wuta, ɓarkewar chromatic na shuɗin haske ya zama babba; idan achromatic don shuɗi mai haske da koren haske, ɓarnawar chromatic na jan haske ya zama babba. Da alama wannan matsala ce mai wahala kuma ba ta da amsa, ba za a iya kawar da samfuran sakandare na gaba ɗaya ba.

Ragewa(APO)fasaha

Abin farin ciki, lissafin ka'idoji sun samo hanya ga APO, wanda shine neman kayan aikin tabarau na musamman wanda yaduwar shi ta shudi zuwa haske ja tayi kasa sosai kuma na shudi zuwa hasken kore yana da girma sosai.

Fluorite shine irin wannan kayan na musamman, watsuwarsa yayi ƙasa kaɗan, kuma ɓangaren watsawar dangi yana kusa da gilashin gani da yawa. Fluorite yana da ƙarancin ƙarancin haske, yana ɗan narkewa a cikin ruwa, kuma yana da ƙarancin tsari-iyawa da kwanciyar hankali na sinadarai, amma saboda kyawawan halayensa masu kyau, ya zama abu mai kyan gani.

Akwai karancin ruwa mai yawa wanda za'a iya amfani dashi don kayan gani a cikin yanayi, haɗe da tsadarsu da wahalar sarrafawa, ruwan tabarau na fluorite ya zama daidai da ruwan tabarau na ƙarshe. Masana'antar tabarau daban-daban basu da wani yunƙuri don nemo madadin fluorite. Gilashin fluorine-kambi ɗayansu ne, kuma gilashin AD, gilashin ED da gilashin UD sune waɗannan maye gurbin.

Rainpoo oblique kyamarori suna amfani da ƙananan ƙananan watsa gilashin ED azaman ruwan tabarau na kamara don yin ɓarna da murdiya ya zama ƙarami kaɗan. Ba wai kawai rage yuwuwar taƙaitawa ba ne, amma har ila yau an inganta tasirin ƙirar 3D sosai, wanda ya inganta tasirin ginshiƙan ginin da facade.

2 、 Murdiya

2.1 Menene murdiya

Lens murdiya hakika ainihin kalma ce ta karkatar da hangen nesa, ma'ana, murdiya da hangen nesa ya haifar. Irin wannan murdadden zai yi mummunan tasiri a kan ingancin daukar hoto. Bayan duk wannan, ma'anar ɗaukar hoto ita ce ta sake haifuwa, ba ƙari ba, saboda haka ana buƙatar cewa hotuna ya kamata su nuna ainihin sikelin sifofin ƙasa gwargwadon iko.

Amma saboda wannan halayyar halittar ruwan tabarau ne (tabarau mai haduwa yana jujjuyawar haske da tabarau mai jujjuyawar haske), dangantakar da aka bayyana a cikin zane mai kyau ita ce: yanayin tangal din na kawar da murdiya da yanayin rashin lafiya don kawar da coma na diaphragm ba za a gamsu da shi ba lokaci guda, don haka murdiya da kyan gani chromatic aberration Ba za a iya kawar da wannan kwata-kwata ba, kawai an inganta shi.

A cikin hoton da ke sama, akwai alaƙa daidai tsakanin tsayin hoto da tsayin abu, kuma rabon tsakanin su biyu shine haɓakawa.

A tsarin hoto mai kyau, nisan tsakanin jirgin abu da ruwan tabarau an ajiye shi tsayayye, kuma faɗakarwa ƙimar ce, don haka kawai akwai daidaitaccen dangantaka tsakanin hoton da abin, babu ɓarna ko kaɗan.

Koyaya, a cikin ainihin hotunan hoto, tunda yanayin ɓoyewa na babban ray ya bambanta da ƙaruwar kusurwar filin, faɗakarwa ba ta zama tsayayye a saman jirgin saman abubuwa masu haɗuwa biyu ba, ma'ana, haɓaka a cikin tsakiyar hoton da kuma girman gefen ba su dace ba, hoton ya rasa kwatankwacin abin. Wannan lahani da ke lalata hoton ana kiransa murdiya.

2.2 Ta yaya murdiya ke shafar daidaito

Da farko, kuskuren AT (Jirgin Sama) zai shafi kuskuren gajimare mai girgije, don haka kuskuren dangi na samfurin 3D. Sabili da haka, asalin ma'anar murabba'i (RMS na Kuskuren Yankewa) ɗayan mahimman alamomi ne waɗanda ke nuna kyakkyawan ƙirar abin kwaikwayon ƙarshe. Ta hanyar bincika ƙimar RMS, za a iya yanke hukunci daidai na ƙirar 3D kawai. Aramar darajar RMS, mafi girman daidaitaccen ƙirar.

2.3 Menene abubuwan da ke shafar gurɓataccen tabarau

mai da hankali tsawon
Gabaɗaya, tsayin tsayin daka na tsayayyen ruwan tabarau, ƙaramin gurɓacewa; mafi guntu mai da hankali, mafi girman ɓarna. Kodayake murdadden ruwan tabarau mai tsayi (tele lens) ya riga ya zama ƙarami kaɗan, a zahiri, don la'akari da tsayin jirgin da sauran sigogi, tsayin ruwan tabarau na kyamara mai binciken iska ba zai iya zama ba tsawon wannanMisali, hoto mai zuwa shine ruwan tabarau na Sony 400mm. Kuna iya ganin cewa murdiyar ruwan tabarau karami ne, kusan ana sarrafa shi cikin 0.5%. Amma matsalar ita ce idan kun yi amfani da wannan tabarau don tattara hotuna a ƙudurin 1cm, kuma tsayin jirgin ya riga ya kai 820m.let drone don tashi a wannan tsawan sam ba gaskiya bane.

Aikin ruwan tabarau

Aikin tabarau shine mafi rikitarwa kuma mafi girman daidaitaccen tsari a cikin aikin samar da tabarau, wanda ya ƙunshi aƙalla matakai 8. A pre-tsari ya hada da nitrate abu-ganga nadawa-yashi rataye-nika, da kuma post-aiwatar daukan core-shafi-mannewa-tawada shafi. Daidaitaccen aiki da yanayin sarrafawa kai tsaye suna ƙayyade daidaito na ƙarshe na tabarau masu gani.

Accuracyarancin daidaitaccen aiki yana da tasiri mai tasiri akan ɓarkewar hoto, wanda kai tsaye ke haifar da gurɓataccen ruwan tabarau, wanda ba za a iya taƙaita shi ko gyara shi ba, wanda zai shafi tasirin ƙirar 3D da gaske.

Shigar da tabarau

Hoto na 1 yana nuna karkatar ruwan tabarau yayin aiwatar da shigar tabarau;

Hoto na 2 ya nuna cewa ruwan tabarau ba mai da hankali bane yayin aiwatar da tabarau;

Hoto na 3 yana nuna shigarwar daidai.

A cikin lamura guda uku da ke sama, hanyoyin shigarwa a cikin lamura biyu na farko duk taron "ba daidai ba ne", wanda zai ruguza tsarin da aka gyara, wanda ya haifar da matsaloli daban-daban kamar rashin haske, allo mara kyau da watsawa. Sabili da haka, ana buƙatar sarrafa madaidaiciyar madaidaici yayin aiki da taro.

Tsarin taron ruwan tabarau

Tsarin aikin tabarau na tabarau yana nufin aiwatar da ɗaukacin ƙirar tabarau da firikwensin ɗaukar hoto. Sigogi kamar matsayi na babban mahimmin yanayin fuskantarwa da gurɓataccen maɓalli a cikin sigogin gyaran kyamara suna bayyana matsalolin da kuskuren taro ya haifar.

Gabaɗaya magana, ana iya jure wa ƙananan ƙananan kurakuran taro (hakika, mafi girman daidaito taron, mafi kyau). Duk lokacin da sifofin ma'auni suka kasance daidai, ana iya lissafta murɗar hoto sosai, sannan za a iya cire gurɓataccen hoton. Vararrawa kuma na iya haifar da tabarau ya ɗan motsa kaɗan kuma ya sa sigogin ɓatar da ruwan tabarau ya canza. Wannan shine dalilin da ya sa kyamarar binciken sararin samaniya ta gargajiya ke buƙatar gyarawa da sake sakewa bayan wani lokaci.

2.3 ruwan tabarau na tilas na Rainpoo

Sau biyu Gauβ tsari

 Hoton Oblique yana da buƙatu da yawa don ruwan tabarau, don ƙarami a cikin girma, haske a cikin nauyi, ƙaramin ɓarna a hoto da ɓarkewar chromatic, mai yawan haifuwa da launi, kuma mai ƙuduri. Lokacin zayyana tsarin ruwan tabarau, ruwan tabarau na Rainpoo yana amfani da tsari Gauβ biyu, kamar yadda aka nuna a cikin hoton:
An rarraba tsarin zuwa gaban ruwan tabarau, diaphragm, da kuma bayan tabarau. Na gaba da na baya na iya bayyana a matsayin "mai daidaitawa" dangane da diaphragm. Irin wannan tsarin yana ba da damar wasu abubuwan ɓarna na chromatic waɗanda aka kirkira a gaba da na baya don soke juna, saboda haka yana da fa'idodi masu girma a cikin ma'auni da girman girman ruwan tabarau a ƙarshen matakin.

Madubin Aspheric

Don kyamarar kamara wanda aka haɗa tare da ruwan tabarau guda biyar, idan kowane ruwan tabarau ya ninka nauyi, kyamarar za ta yi nauyi sau biyar; idan kowane ruwan tabarau ya ninka a tsayi, to kyamarar kyamara zata kalla ninki biyu. Sabili da haka, yayin zayyanawa, don samun ƙimar hoto mai ɗorewa yayin tabbatar da cewa ɓarna da ƙararrawar suna da ƙarami kamar yadda ya yiwu, dole ne a yi amfani da ruwan tabarau na aspheric.

Gilashin tabarau na iya sake mayar da hasken da ke warwatse ta hanyar dunƙulen farfajiyar baya zuwa mayar da hankali, ba wai kawai zai iya samun ƙuduri mafi girma ba, sanya ƙirar haihuwar launi mai girma, amma kuma zai iya kammala gyaran aberration tare da ƙananan ruwan tabarau, rage adadin ruwan tabarau don yin kyamarar wuta da ƙarami.

Gyara murdiya fasaha

Kuskure a cikin aikin taro zai haifar da murdadden tabarau don ƙaruwa. Rage wannan kuskuren taron shine tsarin gyaran murdiya. Wannan adadi mai zuwa yana nuna zane na makarkashiyar tabarau. Gabaɗaya, sauyawar gurɓataccen yanayi daidai yake da ƙananan hagu —- kusurwar dama ta sama, yana nuna cewa ruwan tabarau yana da kusurwar juyawa daidai da shugabanci, wanda ya faru ne sakamakon kurakuran taro.

Sabili da haka, don tabbatar da ingantaccen hoto da inganci, Rainpoo yayi jerin tsauraran matakan duba zane, sarrafawa da haɗuwa:

A farkon matakin zane, domin tabbatar da daidaituwar haduwar ruwan tabarau, gwargwadon yadda zai yiwu don tabbatar da cewa dukkan jiragen shigar tabarau ana sarrafa su ta hanyar daddawa daya;

SingYi amfani da kayan aikin juya kayan da aka shigo dasu akan madaidaitan madaidaici don tabbatar da cewa daidaiton aikin inji ya kai matakin IT6, musamman don tabbatar da cewa hazakar hadin kai shine 0.01mm;

Lens Kowane ruwan tabarau yana sanye da saiti na tungsten na ƙarfe mai auni wanda yake kan madauwari na ciki (kowane girman ya ƙunshi aƙalla ƙa'idodi uku na haƙuri daban-daban), kowane ɓangare ana bincikar shi sosai, kuma ana samun haƙurin matsayin kamar daidaici da daidaito ta hanyar uku-hade kayan aunawa;

FBayan an samar da kowane ruwan tabarau, dole ne a bincika shi, gami da ƙididdigar ƙididdiga da jadawalin zane, da alamomi iri-iri kamar ƙuduri da kuma samar da launi na ruwan tabarau.

RMS na ruwan tabarau na Rainpoo tec