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Tsinghua yunivhesiti: nzira nyowani yenzvimbo yepasi fomu kukanganisa uye yemhando yekuongorora kwezvinhu zvemaziso

Iko kuvandudzwa kwepamusoro pekuita optical imaging system inovhara matanho ekugadzirwa kwemaziso, kugadzira, kuongorora, kusangana uye kugadzirisa.Dhizaini ye optical system ndiko kutanga kweiyo yese process ketani yekuona optical system.Kushivirira kuongororwa ndiro bhiriji rinokosha pakati pekugadzira nekugadzira.Kugovaniswa kunonzwisisika uye kwakaringana kwekukanganisa kwekugadzira kwese kwese kwemaziso kunobatsira pakuzadzikiswa kwepamusoro-chaiyo optical element kugadzira.Iko kuongororwa kwemhando ye optical elements kuchaita ongororo yakarurama yemigumisiro yekugadzira, izvo zvichabatsira kuwedzera kunaka kwekugadzirwa kwezvinhu.

kugadzirwa kwezvinhu 1 

Mufananidzo 1. Kukanganisa kwechimiro chepamusoro uye kuongororwa

Iyo inonyanya kushanda yekushivirira nzira yekuongorora iyo yakatariswa kweanopfuura hafu yezana ramakore yakavakirwa pane Monte Carlo mukana wehuwandu.Uku kushivirira irondedzero yakabatana yechimiro chese chepamusoro.Iyo inotsanangura iyo yakakura RMS kukosha kana PV kukosha kwekukanganisa kwechimiro chepamusoro.Panguva imwecheteyo, kunaka kwezvinhu zvemaziso zvinoratidzwawo neRMS kukosha kana PV kukosha kwekukanganisa kwepamusoro.Nekudaro, iyo chaiyo mamiriro eiyo optical system yakaoma zvakanyanya.Iyo iripo yekushivirira nzira dzekuongorora yakavakirwa paMonte Carlo haigone kupa zvakasiyana kushivirira zvinodiwa kune dzakasiyana nzvimbo dzepasi.Iko kukosha kweRMS kana kukosha kwePV kwechikanganiso chechimiro chepamusoro haigone kunyatsoongorora kunaka kwezvinhu zvemaziso.

Mushure memakore manomwe ekuedza, Zhu Jun, mumwe purofesa weDhipatimendi rePrecision Instruments yeYunivhesiti yeTsinghua, akasimbisa kuti nzvimbo dzakasiyana dzezvinhu zvemaziso dzine zvinodikanwa zvakasiyana zvekushivirira, uye akakurudzira modhi yenzvimbo yekushivirira yenzvimbo yemeso.Iyo yenzvimbo yekushivirira modhi inogona kunyatso kuwana zvakasiyana kushivirira zvinodiwa kune dzakasiyana nzvimbo pamusoro, kuitira kuti nzvimbo dzakasiyana dzepamusoro dzinogona kugadzirwa zvinoenderana nezvinodiwa zvakasiyana.Iyo yemuno yekushivirira modhi inopidigura dzidziso yekuongorora kushivirira kwepasi rose yakavakirwa paMonte Carlo statistical mukana weanopfuura makore makumi mashanu.Boka rekutsvagisa rakaverenga kushivirira kwenzvimbo yezvioni zvitatu zve-off-axis matatu mirror optical system (Mufananidzo 1) uye magirazi maviri emhando yeCassegrain system (Mufananidzo 2), uye yakateedzera uye yakasimbisa kushivirira.Mhedzisiro yekuverengera kuverenga inoratidza pachena nzvimbo.

 kugadzirwa kwezvinhu 2

Mufananidzo 2. Muoff-axis triple mirror system, kugovanisa kwenzvimbo kushivirira kwezvionioni zvitatu (a), (b) uye (c) ndiko kugovewa kwekutsauka pamusoro pezvionioni zvitatu zvakateerana.

 kugadzirwa kwezvinhu 3

Mufananidzo 3. Muchirongwa cheRC, ongorora kugoverwa kwekushivirira kwepanzvimbo yegirazi rekutanga uye girazi rechipiri panguva imwe chete (a), (b), (c) ndiyo kuparadzaniswa kweprofile kugoverwa kwegirazi rekutanga, uye (d), (e). ), uye (f) ndiwo kutsauswa kweprofile girazi rechipiri, zvichiteerana

Panguva imwecheteyo, timu yekutsvagisa yakaronga basa rekuongorora rakarurama RWE yemhando yezvinhu zvemaziso izvo zvine hukama zvakananga nekuita kwekufungidzira, kutsiva tsika dzeRMS kana PV dzechinyakare kuti dziongorore kunaka kwezvinhu zvemaziso, uye kuongorora kunaka kwe. nhevedzano yezvinhu zvine zvikanganiso zvakasiyana pamusoro (Mufananidzo 3).Zvigumisiro zvinoratidza kuti hutano hwezvikamu nePV imwechete kana kuti RMS inokosha yakasiyana, uye zvikamu zvine zvishoma zvishoma zvejometri zvinogona kuunza kunaka kwekufungidzira kwepamusoro kune avo vane geometric accuracy.

kugadzirwa kwezvinhu 4

Iwo akafanana optical zvinhu zveRMS anogona zvakare kusiyanisa yavo yekufungidzira mhando kuburikidza neRWE.Kune bato rekuongorora rekugadzira, mhando yezvikamu mushure mekugadzira inogona kuongororwa yakazvimirira pasina magwaro ekugadzira.RWE inobatsira kukurumidza kusarudza zvikamu zvinosangana nezvinodiwa zvekufungidzira, uye inopa yakanyanya kuenderana musanganiswa pakati pezvikamu zvakasiyana.Mufananidzo 4. Unhu hwezvikamu nePV imwechete kana RMS inokosha yakasiyana

Hurongwa hwekushivirira hwemunharaunda hwakatsanangurwa muchidzidzo ichi huchapa rutsigiro rutsva rwehunyanzvi hwekugadzira masisitimu emeso, kunyanya maaperture mahombe emaziso akadai selithography system uye materesikopu emuchadenga, uye achave neshanduko padzidziso, tekinoroji uye zviyero. mumunda we optical design uye kugadzira.Musi waGunyana 8, zvakabudirira zviri pamusoro zvakaburitswa mujenari OPTICA pasi pemusoro we "Local surface error uye quality evaluation for optical surfaces".


Nguva yekutumira: Nov-01-2022