Thetelecentric lensinonyanya kugadzirwa kururamisa parallax yechinyakare maindasitiri lens, uye inogona kunge iri mune imwe nhambwe nhanho, kuitira kuti iyo yakawanikwa magnification irege kuchinja, inova yakakosha application kune iyo yakayerwa chinhu hachisi pa same surface.

Kuburikidza neyakagadzirwa lens dhizaini, kureba kwayo kwakaringana kureba, uye kureba kwemuviri kwelens kunowanzo kudiki pane kureba kwefocal.

Hunhu hwetelecentric lenzi

Chimiro chayo ndechekuti inogona kuita kuti zvinhu zviri kure zvionekwe zvakakura pane saizi yazvo chaiyo, saka nzvimbo dziri kure kana zvinhu zvinogona kutorwa mifananidzo zvakajeka uye zvakadzama.

Telecentric lenses inounza kusvetuka kwemhando kumashini kuona kwakaringana kuongororwa zvichienderana neakasarudzika maitiro ekuona: yakakwirira resolution, yakanyanya kudzika kwemunda, yekupedzisira-yakaderera kukanganisa, uye yakasarudzika yakafanana dhizaini dhizaini.

Telecentric lenses anoshandiswa zvakanyanya muzviitiko zvakaita sezviitiko zvemitambo, mhuka dzesango uye mafoto echisikigo, uye kucherechedzwa kwemuchadenga, nekuti izvi zviitiko zvinowanzoda kupfura kana kutarisa zvinhu zviri kure. Telecentric lens inogona kuunza zvinhu zviri kure "pedyo" uchichengetedza kujeka uye ruzivo rwemufananidzo.

Mukuwedzera, nekuda kwehurefu hwakareba hwetelecentric lenzi, vanogona kuwana kudzima kwemashure uye kudzika kudzika kwemunda, zvichiita kuti chidzidzo chacho ive nemukurumbira pakupfura, saka anoshandiswawo zvakanyanya mukutora mifananidzo.

Basic classification yetelecentric lenses

Telecentric lenses anonyanya kukamurwa kuita chinhu-padivi telecentric lenses, mufananidzo-padivi telecentric lenzi uye padivi-padivi telecentric lenzi.

Lenzi yechinhu

Chinhu telocentric lens ndiyo inomira inoiswa pamufananidzo square focal plane ye optical system, kana aperture stop yaiswa pamufananidzo square focal plane, kunyangwe chinhu chikachinja, chinhambwe chemufananidzo chinoshandukawo, asi kureba kwemufananidzo kunoita. kusachinja, kureva kuti, saizi yechinhu chakayerwa haichinji.

Object square telecentric lens inoshandiswa kuyera maindasitiri chaiwo, iko kukanganisa idiki, uye kuita kwepamusoro hakugone kukanganiswa.

Schematic dhayagiramu ye telecentric mwenje nzira munzira yechinhu

Mufananidzo sikweya lenzi

Iyo image-side telecentric lens inoisa aperture diaphragm pane chinhu-side focal plane kuitira kuti image-side ray ray ienderane neakisi yemaziso. Nokudaro, kunyange zvazvo nzvimbo yekuisa yeCCD chip ichichinja, ukuru hwemufananidzo wakarongwa paCCD chip hunoramba husina kuchinjwa.

Mufananidzo sikweya telecentric mwenje nzira dhayagiramu

Bilateral lens

Iyo bilateral telecentric lens inosanganisa zvakanakira ari pamusoro maviri telecentric lenzi. Muindasitiri yekugadzira mifananidzo, kazhinji chinhu chete telecentric lenses anoshandiswa. Dzimwe nguva, telecentric lenzi pamativi ese ari maviri anoshandiswa (zvechokwadi mutengo wakakwira).

Mundima yeindasitiri yekugadzira mifananidzo/muchina kuona, telecentric lenzi kazhinji haashande, saka iyi indasitiri haiashandise.