Ndeupi Musiyano Uripo Pakati Varifocal CCTV Lenses Uye Yakagadziriswa CCTV Lenses?

Varifocal lenzi imhando yelenzi inowanzoshandiswa mumakamera akavharika terevhizheni (CCTV). Kusiyana nemalenzi akareba akatarisana, ane hurefu hwakafanotemerwa husingagone kugadziridzwa, varifocal lenzi inopa inogadzirika yakatarisa kureba mukati mechikamu chakatarwa.

Mukana wekutanga wevarifocal lenses kuchinjika kwavo maererano nekugadzirisa ndima yekamera yekuona (FOV) uye zoom level. Nekuchinja kureba kwekutarisa, lenzi inobvumidza iwe kusiyanisa kona yekuona uye zoom mukati kana kunze sezvinodiwa.

Iyi ficha inonyanya kubatsira mukutarisa maapplication uko kamera ingangoda kutarisa kwakasiyana nzvimbo kana zvinhu pazvinhambwe zvakasiyana.

Varifocal lensesdzinowanzotsanangurwa dzichishandisa nhamba mbiri, dzakadai se2.8-12mm kana 5-50mm. Nhamba yekutanga inomiririra kureba kwakapfupika kwelenzi, ichipa nzvimbo yekutarisa yakafara, nepo yechipiri ichimiririra kureba kwekutarisa kureba, ichigonesa nzvimbo yakatetepa yekuona nekuwedzeredza kwakawanda.

Nekugadzirisa hurefu hwekutarisa mukati meiyo renji, unogona kugadzirisa maonero ekamera kuti aenderane nezvinodiwa zvekutarisa.

Kureba kwevarifocal lens

Izvo zvakakosha kuti tizive kuti kugadzirisa iyo yakatarisa kureba pane varifocal lens kunoda kupindira kwemaoko, kungave nekutenderedza ringini palens kana kushandisa mota ine mota inodzorwa kure. Izvi zvinobvumira pa-saiti kugadzirisa kuti ienderane nekuchinja kwekutarisa zvinodiwa.

Musiyano mukuru pakati pevarifocal uye yakagadziriswa lenzi mumakamera eCCTV iri mukukwanisa kwavo kugadzirisa kureba kwekutarisa uye ndima yekuona.

Focal Length:

Fixed lenses ane chaiyo, isingachinjiki yakatarisa kureba. Izvi zvinoreva kuti kana yangoiswa, ndima yekuona kamera uye nhanho ye zoom inoramba iripo. Kune rimwe divi, varifocal lenses inopa huwandu hwehurefu hunogadziriswa hurefu, huchibvumira kuchinjika mukuchinja ndima yekamera yekuona uye zoom level sezvinodiwa.

Munda Wekuona:

Iine lens yakagadziriswa, munda wekuona unofanotemerwa uye haugone kuchinjwa pasina kutsiva mumuviri kutsiva lens.Varifocal lenses, kune rumwe rutivi, kupa kushanduka kwemaoko kugadzirisa lens kuti uwane nzvimbo yakafara kana yakamanikana yekuona, zvichienderana nezvinodiwa zvekuongorora.

Zoom Level:

Fixed lenses haana zoom ficha, sezvo kureba kwawo kunoramba kuripo. Varifocal lenzi, zvisinei, inobvumira kuswedera mukati kana kunze nekugadzirisa kureba kwepakati mukati meiyo yakatarwa. Iyi ficha inobatsira kana iwe uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchingerwa zvinhu zviri kure.

Sarudzo pakati pevarifocal uye yakagadziriswa lenses inoenderana neyakatariswa zvinodiwa zvekushandisa. Fixed lenses akakodzera kana nzvimbo inogara yekuona uye zoom level yakakwana, uye hapana chinodiwa pakugadzirisa maonero ekhamera.

Varifocal lensesanochinja-chinja uye anobatsira kana kuchinjika mumunda wekuona uye zoom ichidikanwa, ichibvumira kuchinjika kune akasiyana ekutarisa mamiriro.