Kutsauka kwepakati kwezvikamu zvemaziso Tsanangudzo uye chirevo

Kutsauka kwepakati kweoptical elementschiratidzo chakakosha chelens optical elementsuye chinhu chakakosha chinokanganisa kufungidzira kwemaitiro optical. Kana iyo lens pachayo iine kutsauka kukuru kwepakati, saka kunyangwe chimiro chayo chepamusoro chakanyatsogadziriswa zvakanaka, iyo inotarisirwa mhando yemufananidzo haigone kuwanikwa kana ichiiswa kune optical system. Naizvozvo, iyo pfungwa uye kuyedzwa kwepakati kutsauka kwezvinhu zvemaziso zviri Kukurukurirana nekudzora nzira kwakakosha. Nekudaro, kune dzakawanda tsananguro uye mazwi pamusoro pekutsauka kwepakati zvekuti shamwari zhinji hadzina kunyatsonzwisisa kwechiratidzo ichi. Mukuita, zviri nyore kusanzwisisa uye kuvhiringidza. Naizvozvo, kutanga kubva muchikamu chino, isu tichatarisa pane spherical surface, aspheric surface, Tsananguro yepakati kutsauka kwezvinhu zvecylindrical lens uye nzira yekuyedza ichaunzwa zvakarongeka kubatsira munhu wese kunzwisisa nekunzwisisa chiratidzo ichi, kuitira kuti avandudze. kunaka kwechigadzirwa mubasa chairo.

2 Matemu ane chekuita nekutsauka kwepakati

Kuti titsanangure kutsauka kwepakati, zvinodikanwa kuti isu tive nekunzwisisa kwekutanga kwetsananguro dzemazwi akajairika.

1. Optical axis

Iro axis ye theoretical. An optical element kana optical system inotenderera inoenzanirana nezve axis yayo yekuona. Kune spherical lens, iyo optical axis mutsetse unobatanidza nzvimbo mbiri dzakatenderedzwa.

2. Reference axis

Iyo axis yakasarudzwa ye optical component kana system, iyo inogona kushandiswa sereferensi pakuunganidza chikamu. Iyo referensi axis mutsara wakatwasuka unoshandiswa kumaka, kutarisa uye kugadzirisa kutsauka kwepakati. Uyu mutsetse wakatwasuka unofanirwa kuratidza iyo optical axis yehurongwa.

3. Reference point

Ndiyo mharadzano poindi yedatum axis uye chikamu chepamusoro.

4. Kona yekurerekera yebhora

Pamharadzano yedatum axis uye chikamu chepamusoro, kona iri pakati penzvimbo yakajairika uye datum axis.

5. Aspheric tilt angle

Kona pakati peinotenderera symmetry axis yeaspheric surface uye datum axis.

6. Lateral kureba kweaspheric surface

Chinhambwe chiri pakati peaspherical surface's vertex uye datum axis.

3 Tsanangudzo dzinoenderana dzekutsauka kwepakati

Kutsauswa kwepakati penzvimbo yakaurungana inoyerwa nekona iri pakati peinojairika yeinongedzo yenzvimbo yemeso uye nereferensi axis, ndiko kuti, kona yekurerekera kwenzvimbo yakaurungana. Kona iyi inodaidzwa kunzi surface inclination angle, inomiririrwa nebhii rechiGiriki χ.

Kutsauka kwepakati kwenzvimbo yeaspheric inomiririrwa nekona yekurerekera χ yenzvimbo yeaspheric uye lateral chinhambwe d chepasi.

Zvakakosha kucherechedza kuti kana uchiongorora kutsauswa kwepakati kwechinhu chimwe chete chelenzi, unofanirwa kutanga wasarudza imwe nzvimbo seyereferensi yekutarisa kutsauka kwepakati kweimwe nzvimbo.

Uye zvakare, mukuita, mamwe mamwe ma paramita anogona zvakare kushandiswa kuratidza kana kuongorora saizi yekutsauka kwechikamu chepakati, kusanganisira:

1. Edge run-out ERO, iyo inonzi Edge run-out muChirungu. Kana iyo chikamu ichigadziriswa, iyo yakakura kumhanya-kunze mune imwe denderedzwa yemupendero, iyo yakakura kutsauka kwepakati.

2. Mutsauko weEdge makobvu ETD, inodaidzwa kunzi Edge ukobvu musiyano muChirungu, dzimwe nguva inoratidzwa se △t. Kana mupendero weukobvu musiyano wechikamu wakakura, kutsauka kwayo kwepakati kuchave kwakakurawo.

3. Yese inomhanya-kunze TIR inogona kushandurwa seyakakwana yemufananidzo point run-out kana yakazara inoratidza kumhanya-kunze. MuchiRungu, iTotal image run-out kana Total inoratidza kupera.

Mutsanangudzo yekutanga yechivanhu, kutsauka kwepakati kucharatidzwawo nemusiyano wepakati wepakati C kana musiyano weC.

Spherical center aberration, inomiririrwa nebhii guru C (dzimwe nguva inomiririrwawo nebhii diki a), inotsanangurwa sekutsauka kweiyo geometric axis yekunze denderedzwa re lens kubva kuoptical axis iri pakati pekumonereka kwelenzi, mumamirimita. Iri izwi rakashandiswa kwenguva yakareba Rinoshandiswa kune tsananguro yekutsauka kwepakati, uye ichiri kushandiswa nevagadziri kusvika zvino. Ichi chiratidzo chinowanzoyedzwa nechiratidziro chepakati.

Eccentricity, inomiririrwa nemavara madiki c, chinhambwe chiri pakati penzvimbo yemharadzano ye geometric axis ye optical part kana gungano iri kuongororwa pane node plane uye kumashure node (iyi tsananguro haina kunyatsojeka, hatidi kumanikidza. manzwisisiro edu), mumashoko enhamba Pamusoro, eccentricity yakaenzana neradius yefocal image beat denderedzwa apo lenzi inotenderera ichitenderera geometric axis. Kazhinji inoedzwa ne transmission centering chiridzwa.

4. Shanduko hukama pakati pezvimiro zvakasiyana

1. Hukama huri pakati pekona yekutarisa kwepamusoro χ, sphere centre musiyano C uye mutsauko weparutivi Δt