Lens chief ray angle ndiyo kona iri pakati peakisi yemaziso uye neranzi huru yelenzi.The lens chief ray ndiyo mwaranzi inopfuura nepaburiro inomira yeoptical system uye mutsetse uri pakati pepakati pemwana wekupinda nenzvimbo yechinhu.Chikonzero chekuvepo kweCRA muIyo Image Sensor ndechekuti kune FOV (Munda wekuona) paMirco Lens pamusoro peiyo Image Sensor, uye kukosha kweCRA kunoenderana neyakachinjika kukanganisa kukosha pakati peMicro Lens. yeiyo Image Sensor uye chinzvimbo chesilicon photodiode.Chinangwa ndechekuenzanisa zviri nani lens.
Iyo lens chief ray angle
Kusarudza inoenderana CRA yeLens&Image Sensor inogona kuve nechokwadi chakanyanya kutorwa kwemafotoni musilicon photodiodes, nekudaro ichidzikisa optical crosstalk.
Kune ma sensors emifananidzo ane mapikisi madiki, iyo ray ray angle yave yakakosha parameter.Izvi zvinodaro nekuti mwenje unofanirwa kupinda nepakati pepixel kusvika pasilicon photodiode pazasi pepixel, iyo inobatsira kuwedzera huwandu hwechiedza chinopinda chaimo muphotodiode uye kuderedza huwandu hwechiedza chinopinda musilicon. photodiode yepixel yakatarisana (Kugadzira optical crosstalk).
Naizvozvo, kana iyo Image sensor inosarudza lenzi, inogona kubvunza iyo Image Sensor inogadzira & lens mugadziri weCRA curve yekufananidza;inowanzokurudzirwa kuti CRA angle musiyano pakati peImage Sensor uye lens inodzorwa mukati me +/-3 madhigirii, hongu, iyo diki yePixel, yakakwirira inodiwa.
Mhedzisiro yelens CRA uye sensor CRA kusawirirana:
Mismatch inoguma mucrosstalk zvichikonzera kusaenzana kwemavara pamufananidzo, zvichikonzera kudzikiswa kwechiratidzo-ku-ruzha ratio (SNR);sezvo CCM inoda yakawedzera kuwana dhijitari kutsiva kurasikirwa kwechiratidzo mufotodiode.
Mhedzisiro yelens CRA uye sensor CRA kusawirirana
Kana iyo CRA isingaenderane, inokonzeresa matambudziko senge mifananidzo isina kujeka, mhute, musiyano wakaderera, mavara akapera, nekudzika kwemunda.
Iyo lens CRA idiki pane iyo Image Sensor CRA inoburitsa Ruvara shading.
Kana iyo Image Sensor idiki pane iyo lens CRA, Lens shading ichaitika.
Saka isu tinofanira kutanga tive nechokwadi chekuti Ruvara shading haioneki, nekuti Lens shading iri nyore kugadzirisa kuburikidza nedebugging pane Ruvara shading.
Image Sensor uye lens CRA
Inogona kuonekwa kubva pamufananidzo uri pamusoro kuti TTL ye lens ndiyo zvakare kiyi yekuona iyo CRA angle.Iyo yakaderera TTL, iyo yakakura iyo CRA angle.Naizvozvo, iyo sensor yemufananidzo ine mapikisi madiki yakakoshawo kune iyo lens CRA inoenderana kana uchigadzira kamera system.
Kazhinji, iyo lenzi CRA haina kunyatsoenderana neiyo Image sensor CRA nekuda kwezvikonzero zvakasiyana.Zvakaonekwa kuyedza kuti lens CRA macurves ane flat top (minimum flip) anonyanya kushivirira pamakamera module magungano akasiyana pane akakombama CRA.
Iyo lenzi CRA haina kunyatsoenderana neiyo Image sensor CRA nekuda kwezvikonzero zvakasiyana
Mifananidzo iri pazasi inoratidza mienzaniso yeflat top uye curved CRAs.
Mienzaniso ye flat top uye curved CRAs
Kana iyo CRA yelenzi yakanyanya kusiyanisa neCRA yemufananidzo sensor, iyo ruvara inokandwa ichaonekwa sezvakaratidzwa mumufananidzo uri pazasi.
Ruvara rwemavara runooneka
Nguva yekutumira: Jan-05-2023
