Thetelecentric lensmakamaka lakonzedwa kuti akonze parallax wa mandala mafakitale chikhalidwe, ndipo akhoza kukhala mu osiyanasiyana mtunda, kuti analandira chithunzi makulitsidwe sangasinthe, umene ndi ntchito yofunika kwambiri pa nkhani kuti chinthu anayeza si pa pamwamba chomwecho.

Kupyolera mu mapangidwe apadera a lens, kutalika kwake kokhazikika kumakhala kotalika, ndipo kutalika kwake kwa lens nthawi zambiri kumakhala kochepa kusiyana ndi kutalika kwake.

Makhalidwe amagalasi a telecentric

Maonekedwe ake ndi oti amatha kupangitsa kuti zinthu zakutali ziziwoneka zazikulu kuposa kukula kwake kwenikweni, kotero kuti malo akutali kapena zinthu zitha kujambulidwa momveka bwino komanso mwatsatanetsatane.

Magalasi a Telecentric amabweretsa kudumpha kwapamwamba pakuwunika kowona bwino kwa makina kutengera mawonekedwe awo apadera a kuwala: kusanja kwakukulu, kuzama kwakukulu kwamunda, kupotoza kotsika kwambiri, komanso kapangidwe kake kofananirako kofananira.

Magalasi a telecentric amagwiritsidwa ntchito kwambiri pamasewera monga masewera, nyama zakuthengo ndi kujambula zachilengedwe, komanso zowonera zakuthambo, chifukwa zochitika izi nthawi zambiri zimafuna kuwombera kapena kuyang'ana zinthu zakutali. Magalasi a telecentric amatha kubweretsa zinthu zakutali "pafupi" ndikusunga kumveka bwino komanso tsatanetsatane wa chithunzicho.

Komanso, chifukwa yaitali lolunjika kutalika kwamagalasi a telecentric, amatha kukwaniritsa kusamveka bwino komanso kuzama kwa gawo, zomwe zimapangitsa kuti phunzirolo likhale lodziwika kwambiri pojambula, choncho amagwiritsidwanso ntchito kwambiri pojambula zithunzi.

Chigawo choyambirira chatelecentric lenses

Magalasi a Telecentric amagawidwa makamaka kukhala magalasi a telecentric a mbali ya chinthu, magalasi am'mbali a telecentric ndi ma lens am'mbali a telecentric.

Lens ya chinthu

Lens ya chinthu cha telocentric ndi malo oyimitsira omwe amaikidwa pa chithunzi cha square focal ndege ya optical system, pomwe chotchingira chimayikidwa pa chithunzi cha square focal ndege, ngakhale mtunda wa chinthu usintha, mtunda wa chithunzi umasinthanso, koma kutalika kwa chithunzi kumasintha. osasintha, ndiko kuti, kukula kwa chinthu sikusintha.

Object square telecentric lens imagwiritsidwa ntchito poyezera mwatsatanetsatane m'mafakitale, kupotoza ndikochepa kwambiri, ndipo magwiridwe antchito apamwamba sangathe kupotoza.

Chithunzi chojambula cha njira yowunikira ya telecentric munjira ya chinthu

Chithunzi cha square lens

Diso la telecentric lens la mbali ya chithunzi limayika chotchinga pa chinthu chomwe chili kumbali ya ndege kuti kuwala kwapambali kukhale kofanana ndi optical axis. Choncho, ngakhale malo oyika a CCD chip amasintha, kukula kwa chithunzi chojambulidwa pa CCD chip sikunasinthe.

Chithunzi cha square telecentric light path njira

Bilateral lens

Magalasi apawiri a telecentric amaphatikiza zabwino zamagalasi awiri apamwambawa. Pokonza zithunzi za mafakitale, nthawi zambiri magalasi a telecentric amagwiritsidwa ntchito. Nthawi zina, magalasi a telecentric mbali zonse amagwiritsidwa ntchito (ndithudi mtengo wake ndi wapamwamba).

Pankhani yokonza zithunzi zamakampani / masomphenya a makina, magalasi a telecentric nthawi zambiri sagwira ntchito, chifukwa chake makampaniwa samawagwiritsa ntchito.