Nigute wahitamo Lens nziza kuri Kamera yawe y'Umutekano?

一，Ubwoko bwa Lenseri za Kamera z'Umutekano:

Indorerwamo za kamera z'umutekano ziza mu bwoko butandukanye, buri imwe igenewe gukurura ibyo ukeneye mu kugenzura. Gusobanukirwa ubwoko bwa lens zihari bishobora kugufasha guhitamo ikwiriye kamera yawe y'umutekano. Dore ubwoko busanzwe bwaindorerwamo za kamera z'umutekano:

1,Ijisho rihamye: Indorerwamo zihamye zifite uburebure bumwe bw'icyerekezo n'aho zireba, ibyo bikaba bidashobora guhindurwa. Ni amahitamo meza kandi ahendutse akwiriye kugenzura agace runaka hatabayeho guhindurwa kenshi. Indorerwamo zihamye ziboneka mu burebure butandukanye bw'icyerekezo, bigatuma ushobora guhitamo aho zireba wifuza.

2,Ijisho rya Varifocal: Ilensi ya varifocal itanga uburebure bw'inyuma bushobora guhinduka, igufasha guhindura urwego rw'ishusho n'intoki. Itanga ubushobozi bwo guhindura urwego rwa zoom kandi ni nziza mu bihe aho agace k'igenzura gashobora guhinduka cyangwa gasaba urwego rutandukanye rw'ibisobanuro. Ilensi za varifocal zikunze gukoreshwa mu bihe aho bisaba ubwisanzure, nko kugenzura hanze.

3,Indorerwamo ya Zoom:Ikirahuri cyo kureba amashusho gitanga ubushobozi bwo guhindura uburebure bw'inyuma n'aho umuntu areba kure. Gitanga ubushobozi bwo kureba amashusho mu buryo bw'ikoranabuhanga no kureba amashusho mu buryo bw'ikoranabuhanga. Ikirahuri cyo kureba amashusho mu buryo bw'ikoranabuhanga gikomeza ubuziranenge bw'ishusho binyuze mu guhindura ibice bya lens, mu gihe ikirahuri cyo kureba amashusho mu buryo bw'ikoranabuhanga cyagura ishusho mu buryo bw'ikoranabuhanga, bigatuma habaho gutakaza ubuziranenge bw'ishusho. Ikirahuri cyo kureba amashusho mu buryo bw'ikoranabuhanga gikoreshwa cyane mu bikorwa aho kugenzura amashusho mu buryo bw'ikoranabuhanga no gufata amakuru make ari ingenzi, nko mu bice binini byo mu nzu cyangwa hanze.

4,Indorerwamo y'inguni nini: Indorerwamo y'inguni nini ifite uburebure bugufi bw'inyuma, bigatuma umuntu abona ahantu hanini. Irakwiriye kugenzura ahantu hanini cyangwa ahantu hafunguye aho gufata ahantu hanini ari ngombwa. Indorerwamo z'inguni nini zikoreshwa cyane mu igenzura nko mu bibanza byo guparika imodoka, mu bubiko, cyangwa mu igenzura ry'inyuma y'inyuma.

5,Lens ya Telefoto: Ikirahuri cya telephoto gifite uburebure burebure bwo kwibandaho, gitanga umwanya muto wo kureba no kongera ubwiza. Ni cyiza cyane mu igenzura ry’ahantu harehare cyangwa mu bihe aho gufata amakuru yihariye uri kure ari ingenzi. Ikirahuri cya telephoto gikunze gukoreshwa mu bikorwa nko kumenya icyapa cy’imodoka, kumenya isura, cyangwa kugenzura ibintu by’ingenzi uri kure.

6,Ijisho ry'umugozi:Ijisho ry'umuyoboro w'inyuma ni ijisho ryihariye rito cyane kandi rihishe. Rigenewe guhishwa mu bintu cyangwa ahantu hihishe, bigatuma habaho igenzura ryihishe. Ijisho ry'umuyoboro w'inyuma rikunze gukoreshwa mu bihe aho kamera ikeneye guhishwa cyangwa guhishwa, nko muri ATM, ku muryango, cyangwa mu bikorwa byo kugenzura byihishe.

二，Nigute wahitamo Lens nziza kuri Kamera yawe y'Umutekano?

Guhitamo lenzi nziza kuri kamera yawe y'umutekano ni intambwe y'ingenzi mu kwemeza ko ikora neza kandi igafata amashusho meza. Dore bimwe mu bintu ugomba kuzirikana mu gihe uhitamo lenzi:

Ubwoko bwa Kamera:Hitamo ubwoko bwa kamera y'umutekano ufite cyangwa uteganya kugura. Ubwoko butandukanye bwa kamera, nka bullet, dome, cyangwa PTZ (pan-tilt-zoom), bushobora gusaba ubwoko cyangwa ingano runaka z'indorerwamo.

Uburebure bw'ifatizo: Uburebure bw'icyerekezo bugena aho ishusho iherereye n'urwego rwa zoom. Bupimirwa muri milimetero (mm). Hitamo uburebure bw'icyerekezo bujyanye n'ibyo ukeneye byihariye. Dore amwe mu mahitamo asanzwe:

Indorerwamo y'inguni nini(2.8mm kugeza 8mm): Itanga ahantu hagari ho kureba, hakwiriye gukwirakwizwa ahantu hanini cyangwa kugenzura ahantu hagari.

Indorerwamo isanzwe (8mm kugeza 12mm): Itanga ishusho iringaniye ikwiriye gukoreshwa mu kugenzura ibintu muri rusange.

Lens ya Telephoto (12mm no hejuru): Itanga umwanya muto wo kureba ariko itanga ubushobozi bwo kohereza amashusho mu buryo bwo kurebera kure cyangwa kureba hafi cyane.

Ikibuga cyo Kureba (FOV): Tekereza agace ushaka kugenzura n'urwego rw'ibisobanuro bikenewe. Urwego rwagutse rwo kureba ni ingirakamaro ku bice binini bifunguye, mu gihe FOV ntoya ari nziza ku bice byihariye bikeneye kwitabwaho cyane.

Umwobo: Umwobo ugena ubushobozi bwa lens bwo gukusanya urumuri. Ugaragazwa n'umubare wa f (urugero, f/1.4, f/2.8). Umubare wa f uri hasi ugaragaza uwobo munini, bigatuma urumuri rwinshi rwinjira muri lens. Uwo mwobo munini ni ingirakamaro mu bihe by'urumuri ruto cyangwa mu gufata amashusho meza mu mwijima.

Guhuza Igishushanyo n'Ishusho: Menya neza ko lenzi ijyanye n'ingano ya kamera yawe ipima ishusho. Ingano zisanzwe za lenzi zipima amashusho zirimo 1/3″, 1/2.7″, na 1/2.5″. Gukoresha lenzi yagenewe ingano ikwiye ya lenzi bifasha kugumana ireme ry'ishusho kandi birinda kwangirika cyangwa guhindagurika kw'ishusho.

Lens Mount: Reba ubwoko bw'aho kamera yawe ifatira lens bukenewe. Ubwoko busanzwe bwo gushyiramo lens burimo CS mount na C mount. Menya neza ko lens uhisemo ihuye n'ubwoko bw'aho kamera ifatira.

Indorerwamo za Varifocal ugereranyije na Fixed Lens:Indorerwamo za Varifocal zigufasha guhindura uburebure bw'indorerwamo n'intoki, zigatanga ubushobozi bwo guhindura urwego rw'indorerwamo uko bikenewe. Indorerwamo za Fixed Lens zifite uburebure bw'indorerwamo bwagenwe kandi zitanga urwego rw'indorerwamo rudahinduka. Hitamo ubwoko bukwiye ukurikije ibyo ukeneye mu kugenzura.

Ingengo y'imari:Tekereza ku ngengo y'imari yawe mu gihe uhitamo lenzi. Lenzi nziza zifite imiterere ihanitse zishobora kuba zihenze ariko zishobora gutanga ishusho nziza kandi ziramba.

Uruganda n'Isuzuma:Kora ubushakashatsi ku nganda zizwiho ubuhanga mu gukora indorerwamo za kamera z’umutekano. Soma ibitekerezo by’abakiriya kandi ushake inama kugira ngo umenye neza ko uhisemo ibicuruzwa byizewe kandi byemewe.

三，Guhitamo Lens yo Gukoresha Imbere Ugereranyije n'Iyo Gukoresha Imbere: Itandukaniro ni irihe?

Mu guhitamo lenzi yo kugenzura imbere cyangwa hanze, hari itandukaniro rito ry'ingenzi ugomba kuzirikana bitewe n'imiterere yihariye y'ibi bidukikije. Dore ibyo ugomba kumenya:

Ibisabwa mu itara:Ahantu ho hanze hakunze kugira urumuri rutandukanye, harimo urumuri rw'izuba rwinshi, igicucu, n'urumuri ruto mu gihe cya nijoro. Ahantu ho mu nzu, ubusanzwe haba hari urumuri rugenzurwa cyane kandi rumurika buri gihe. Kubwibyo, guhitamo lenzi bigomba kwita ku mbogamizi zihariye z'urumuri kuri buri gace.

Hanze:Hitamo lenzi ifite umwobo munini (umubare muto wa f) kugira ngo ikusanye urumuri rwinshi mu gihe hari urumuri ruto. Ibi bituma isura igaragara neza kandi ikagira ireme ry'ishusho mu gihe cy'ijoro, mu gitondo cya kare, cyangwa nijoro. Byongeye kandi, lenzi zifite ubushobozi bwo gukora neza zishobora guhangana n'itandukaniro riri hagati y'izuba ryinshi n'ahantu hihishe.

Imbere: Kubera ko ahantu ho mu nzu akenshi haba hari urumuri ruhoraho, lenseri zifite utwenge turinganiye zishobora kuba zihagije. Lenseri ifite umubare wa f uri hejuru gato ishobora gutanga ishusho nziza mu buryo bwo mu nzu hatabayeho ubushobozi bwo gusohora utwenge bunini.

Aho Ishusho Iherereye:Aho bareba hashobora gutandukana bitewe n'ingano n'imiterere y'agace k'igenzura.

Hanze: Ahantu ho hanze muri rusange hakenera ahantu hanini ho kureba kugira ngo hagenzurwe neza ahantu hanini. Indorerwamo z'ijisho zikunze gukoreshwa mu gufata ahantu hanini, cyane cyane ahantu hafunguye nko mu biparikingi cyangwa hanze y'inyubako.

Imbere: Aho umuntu areba imbere hashobora gutandukana bitewe n'agace runaka kagenzurwa. Hari igihe, lenzi ifite inguni nini ishobora kuba ikwiriye gutwikira icyumba kinini cyangwa mu cyumba cyo hejuru. Ariko, mu mwanya muto cyangwa aho bikenewe ko hagenzurwa byimbitse, lenzi ifite aho ireba hato cyangwa ubushobozi bwo guhindura uburebure bw'inyuma (lenzi ya varifocal) ishobora kuba nziza.

Ubudahangarwa bw'ikirere: Kamera zo kugenzura hanze n'amabara y'indorerwamo bigomba kuba byagenewe kwihanganira ikirere kibi, nk'imvura, urubura, umukungugu, cyangwa ubushyuhe bukabije. Ni ngombwa guhitamo amabara y'indorerwamo yagenewe gukoreshwa hanze, akenshi aba afite ibintu birwanya ikirere nk'udukingirizo dufunze kugira ngo birinde ubushuhe n'imyanda.

Ubudahangarwa bw'Abangizi:Mu bidukikije byo hanze, hari ibyago byinshi byo kwangiza cyangwa guhungabanya imiterere y'ifoto. Tekereza ku nyubako zifite ibikoresho byo kurinda nk'udupfundikizo cyangwa amadirishya adashobora kwangirika kugira ngo wirinde kwangirika no kwemeza ko imikorere ya kamera n'ubwiza bw'ishusho byayo bitabangamiwe.

Guhuza ikoranabuhanga rya IR:Niba sisitemu yawe yo kugenzura irimo urumuri rwa infrared (IR) kugira ngo umuntu abone nijoro, menya neza ko iyo lens ijyanye n'urumuri rwa IR. Amwe mu ma lens ashobora kuba afite akayunguruzo ka IR kugira ngo yongere ireme ry'ishusho ku manywa mu gihe atuma urumuri rwa IR rugaragara neza nijoro.