Imhandoi yegirazi kamera yekutarisa, uye chii chiri musimboti?

Ndeupi rudzi rwegirazi kamera yekutarisa, uye

chii chiri musimboti?

Iyo surveillance camera yakaenzana neconvex lens.

Nekuti kamera yayo inoumbwa neboka remalenzi, basa rayo rakafanana nereconvex lens, inova kubvumira zvinhu zviri kure (kupfuura 2 times the focal kureba) kuti zvifananidzwe pane sensor mushure mekupfuura nepakati (kuderedza). iyo inverted mufananidzo chaiwo).

Nheyo yekushanda yekamera inosvika seizvi: iyo optical image inogadzirwa nechiitiko kuburikidza nelens (LENS) inofungidzirwa pamusoro peiyo sensor yemufananidzo, uye yozoshandurwa kuita chiratidzo chemagetsi, chinoshandurwa kuita chiratidzo chedhijitari. mushure meA/D (analog-to-digital conversion), uye wozotumirwa kudhijitari chiratidzo.Iyo inogadziriswa muchiratidzo chekugadzirisa chip (DSP), uye yozoendeswa kumakombuta kuti igadziriswe kuburikidza ne USB interface, uye mufananidzo unogona kuvonekwa kuburikidza nekutarisa.

Ruzivo rwakawedzerwa:

Application

ziso remunhu

Mufananidzo wakaumbwa nemaziso evanhu ndewechokwadi here kana kuti ndewechokwadi?Isu tinoziva kuti chimiro cheziso remunhu chakaenzana neconvex lens, saka mufananidzo wezvinhu zvekunze pane retina unofanirwa kunge uri mufananidzo chaiwo.Zvinoenderana nemutemo wepamusoro weempirical, mufananidzo uri paretina unoratidzika kunge wakatsveyamiswa.

Icho chinhu chipi nechipi chatinowanzoona here, icho chiri pachena kuti chakarurama?Iyi kupesana neruzivo uye mitemo inobatanidza chaizvo kugadzirisa basa recerebral cortex uye simba rehupenyu hwehupenyu.Nekuda kwekukanganisa kwekuona, ziso remunhu rinotenda kuti chiedza chinoburitswa nechinhu uye chinonangwa muziso remunhu.

Kana chinhambwe chiri pakati pechinhu nelenzi checonvex chikakura kudarika kureba kwelenzi, chinhu chinoumba mufananidzo wakapidiguka.Apo chinhu chacho chinosvika kune lens kubva kure, chifananidzo chinowedzera zvishoma nezvishoma, uye chinhambwe kubva pamufananidzo kusvika kune lens chinowedzerawo zvishoma nezvishoma.

Kana chinhambwe chiri pakati pechinhu nelenzi chiri diki pane kureba kwakatarisana, chinhu chinova chifananidzo chakakurisa, chisiri icho chinochinjika chemwaranzi chaiyo yakadzoserwa, asi nzvimbo yemharadzano yemitsara yavo yereverse yekuwedzera, isingagamuchirwe ne. chidzitiro chechiedza uye mufananidzo chaiwo.Kusiyana kwemufananidzo chaiwo wakaumbwa negirazi rendege (haigone kugamuchirwa nechiedza chechiedza, chinogona kuonekwa chete nemaziso).

Kamera

Lens yekamera i-convex lens, chiitiko chinofanira kutorwa mufananidzo ndicho chinhu, uye firimu ndiro skrini.Chiedza chinovhenekerwa pachinhu chacho chinoparadzirwa uye chinoratidzwa kuburikidza neconvex lens kuumba mufananidzo wechinhu pafirimu yekupedzisira;iyo firimu yakaputirwa nejira rezvinhu zvinonzwa chiedza, izvo zvinochinja kemikari mushure mekuratidzwa, uye mufananidzo wechinhu chacho unonyorwa mufirimu.

Hukama huri pakati pechinhambwe chechinhu uye chinhambwe chemufananidzo chakangofanana neicho checonvex lens.Kana chinhu chacho chave pedyo, chifananidzo chinova kure uye kure, chikuru uye chikuru, uye pakupedzisira unova mufananidzo chaiwo kune rimwe divi.Kana chinhu chinhambwe chikawedzera, chinhambwe chemufananidzo chinoderera, uye chifananidzo chinova chidiki;kana chinhu chinhambwe chinodzikira, chinhambwe chemufananidzo chinowedzera, uye mufananidzo unova mukuru.Imwe nguva iyo focal kureba yakakamurwa kuita chaiyo uye chaiyo, uye kaviri iyo focal kureba yakakamurwa kuita saizi.

zvimwe

Maconvex lenzi anoshandiswa mumapurojekita, masiraidhi mapurojekita, mapurojekita, magirazi ekukudza, marambi ekutsvaga, makamera nemakamera.Convex lenses yakakwana hupenyu hwedu uye anoshandiswa muhupenyu hwedu nguva dzese.Magirazi anoona zviri mberi ndiwo maconvex lenzi, uye magirazi anoonesa pedyo maconcave lenzi.