Iyolenzi ye telecentricYakagadzirirwa kugadzirisa parallax ye lenzi yechinyakare yeindasitiri, uye inogona kuva kure, kuitira kuti kukura kwemufananidzo kwakawanikwa kusachinje, inova chinhu chakakosha zvikuru chechinhu chakayerwa chisiri panzvimbo imwe chete.

Kuburikidza nekugadzirwa kwelenzi yakakosha, kureba kwayo kwakareba, uye kureba kwelenzi kunowanzova kudiki pane kureba kwelenzi.

Hunhu hwemagirazi e telecentric

Hunhu hwayo ndehwekuti inogona kuita kuti zvinhu zviri kure zviite sezvakakura kupfuura saizi yazvo chaiyo, saka nzvimbo dziri kure kana zvinhu zvinogona kutorwa mifananidzo zvakajeka uye zvakadzama.

Magirazi eTelecentric anounza mukana wekuongorora mashandisirwo chaiwo ekuona kwemuchina zvichibva pane hunhu hwawo hwekuona hwakasiyana: resolution yepamusoro, kudzika kwemunda kwakafara, kukanganiswa kwakaderera zvakanyanya, uye dhizaini yechiedza chakasiyana.

Magirazi eTelecentric anoshandiswa zvakanyanya muzviitiko zvakaita semitambo, mifananidzo yemhuka dzesango nezvisikwa, uye ongororo yezvemuchadenga, nekuti zviitiko izvi zvinowanzoda kutorwa mifananidzo kana kuona zvinhu zviri kure. Magirazi eTelecentric anogona kuswededza zvinhu zviri kure "pedyo" uku achichengetedza kujeka uye ruzivo rwemufananidzo.

Pamusoro pezvo, nekuda kwehurefu hwakareba hwemagirazi e telecentric, dzinogona kuita kuti background blur uye field slow, zvichiita kuti chinhu chacho chionekwe zvakanyanya pakutorwa kwemifananidzo, saka dzinoshandiswawo zvakanyanya mukutora mifananidzo yemifananidzo.

Kupatsanura kukuru kwemalenzi e telecentric

Magirazi eTelecentric akakamurwa kuva magirazi eObject-side telecentric, magirazi eImage-side telecentric uye magirazi epadivi telecentric.

Lenzi yechinhu

Lenzi ye telocentric yechinhu ndiyo nzvimbo yekuvhura inoiswa pamufananidzo we square focal plane ye optical system, kana nzvimbo yekuvhura inoiswa pamufananidzo we square focal plane, kunyangwe daro rechinhu rikachinja, daro remufananidzo rinochinjawo, asi kukwirira kwemufananidzo hakuchinje, kureva kuti, saizi yechinhu chakayerwa haichinje.

Lenzi ye "object square telecentric" inoshandiswa pakuyera nemazvo maindasitiri, kukanganiswa kwacho kudiki kwazvo, uye kushanda kwayo kwepamusoro hakugone kukonzera kukanganiswa.

Dhirowamu yechirongwa chenzira yechiedza che telecentric munzira yechinhu

Lenzi yemufananidzo ine sikweya

Lenzi yemufananidzo ine divi re telecentric inoisa aperture diaphragm panzvimbo ye object-side focal plane kuitira kuti mufananidzo we principal side uenzane ne optical axis. Saka, kunyange zvazvo nzvimbo yekuisa CCD chip ichichinja, saizi yemufananidzo wakaratidzwa paCCD chip haichinji.

Dhayagiramu yenzira yechiedza che telecentric ine sikweya yemufananidzo

Lenzi yemativi maviri

Lenzi yemagetsi ine magirazi maviri inosanganisa zvakanakira malenzi maviri ari pamusoro apa. Mukugadzirisa mifananidzo yeindasitiri, kazhinji malenzi ane magirazi chete ndiwo anoshandiswa. Dzimwe nguva, malenzi ane magirazi akasiyana-siyana anoshandiswa kumativi ese (zvechokwadi mutengo wacho wakakwira).

Munyaya yekugadzirisa mifananidzo yemuindasitiri/kuona kwemuchina, malenzi e telecentric haawanzo kushanda, saka indasitiri iyi haiashandise.