Kev hloov pauv sai ntawm Augmented Reality (AR) thiab Virtual Reality (VR) thev naus laus zis ua rau muaj kev xav tau ntau dua li yav dhau los rau cov khoom siv kho qhov muag. Hauv plawv ntawm cov kab ke siab heev no muaj ib qho tseem ceeb: lub iav wafer uas raug. Thaum cov khoom siv ua nyias dua, sib dua, thiab nkag mus tob dua, cov lus qhia rau cov iav substrates uas txhawb nqa lawv tau dhau los ua qhov nruj dua.
Rau cov neeg tsim qauv thiab cov chaw tsim khoom siv kho qhov muag, kev nkag siab txog cov kev txawj ntse no tsis yog hais txog kev nrhiav cov ntaub ntawv xwb - nws yog hais txog kev ua kom muaj tiam tom ntej ntawm kev suav lej hauv chaw. Ntawm ZHHIMG, peb txuas qhov sib txawv ntawm kev tshawb fawb txog cov khoom siv raw thiab kev ua tau zoo ntawm qhov muag. Nov yog cov lus qhia tseem ceeb uas koj yuav tsum paub thaum xaiv cov iav wafers rau AR / VR daim ntawv thov.
Cov Khoom Siv Substrate thiab Refractive Index
Qhov kev xaiv ntawm cov khoom siv iav dictates txoj kev kho qhov muag thiab daim ntawv qhia ntawm lub cuab yeej kawg.
- Iav High-Refractive-Index (n > 1.8): Rau cov zaub AR uas siv waveguide, lub teeb yuav tsum tau txuas nrog zoo thiab coj los ntawm kev cuam tshuam sab hauv tag nrho. Iav High-index tso cai rau cov cav optical me dua, sib dua thiab pom dav dua (FOV).
- Fused Silica: Zoo siv rau kev ua UV laser thiab cov ntawv thov uas xav tau kev ruaj khov thermal heev. Nws cov coefficient thermal expansion qis ua kom qhov kev ua haujlwm optical tseem zoo ib yam txawm tias nyob hauv qhov kaj ci ntsa iab.
- Kev Sib Tw Thermal: Hauv wafer-level optics, lub iav substrate feem ntau yuav tsum tau sib txuas nrog silicon sensors lossis cov zaub. Xaiv cov iav sib xyaw nrog cov coefficient thermal expansion uas phim silicon (kwv yees li 2.6 × 10⁻⁶/K) yog qhov tseem ceeb kom tiv thaiv kev warping lossis delamination thaum lub sijhawm kub.
Kev Tawm Tsam Qhov Ntev thiab Qhov Zoo Ntawm Qhov Chaw
Hauv qhov chaw ntawm wafer level optics, qhov kev ntsuas qhov tseeb yog ntsuas hauv microns thiab nanometers. Cov qauv iav lag luam txheem tsis siv rau ntawm no.
- Txoj kab uas hla thiab tuab: Cov hom ntawv feem ntau suav nrog 200mm thiab 300mm wafers, nrog rau cov tuab ntawm 0.3mm txog 5mm.
- Kev kam rau tuab: Peb tswj hwm qhov kam rau nruj, feem ntau ± 5µm, kom ntseeg tau tias muaj kev sib npaug thoob plaws lub wafer.
- Tag Nrho Qhov Sib Txawv ntawm Cov Thickness (TTV): TTV ntawm <5µm yog qhov tseem ceeb rau kev tswj hwm qhov kev tsom mus rau thiab tiv thaiv kev cuam tshuam ntawm cov teeb pom kev zoo hauv cov khoom sib dhos ua ke.
- Kev Tiaj: Txhawm rau tiv thaiv kev cuam tshuam ntawm cov duab, kev khoov thiab kev ntswj yuav tsum raug tswj kom <20µm thiab <5µm raws li.
Qhov Chaw Tiav thiab Roughness
Qhov zoo ntawm qhov iav ncaj qha cuam tshuam rau lub teeb kis thiab kev tawg.
- Qhov Roughness (Ra): Rau cov khoom siv kho qhov muag AR VR uas ua haujlwm tau zoo, peb ua tiav qhov roughness ntawm Ra <1nm. Qhov kev du thiab ze li ntawm atomic no txo qhov kev tawg ntawm lub teeb thiab pos huab, ua kom muaj kev sib piv siab thiab kev pom tseeb.
- Qhov Zoo Ntawm Qhov Chaw: Ua raws li cov qauv MIL-PRF-13830B, feem ntau peb muab iav nrog qhov ntsuas khawb 40-20 lossis zoo dua. Hauv cov ntawv thov uas rhiab heev rau qhov tsis zoo xws li lithography lossis laser optics, txawm tias qhov puas tsuaj hauv qab qhov chaw yuav tsum tau tshem tawm los ntawm cov txheej txheem polishing siab heev.
Kev Ua Haujlwm Siab Tshaj Plaws thiab Kev Txheej Txheem
Cov iav nyoos tsuas yog qhov pib xwb. Lub luag haujlwm ntawm cov wafer yog txhais los ntawm nws cov txheej txheem ua.
- Kev Txhuam Ob Sab (DSP): Qhov tseem ceeb rau cov ntawv thov uas xav tau kev pom tseeb ntawm ob sab, xws li cov beam splitters lossis cov iav npog rau LiDAR systems.
- Cov Txheej Txheem Tiv Thaiv Kev Txav (AR): Txhawm rau kom lub teeb kis tau zoo tshaj plaws (feem ntau >98%), cov txheej txheem AR raug tso rau hauv. Spectrophotometry siv los txheeb xyuas kev ua haujlwm ntawm cov txheej txheem hla cov spectrum pom (400-700nm) lossis cov wavelengths laser tshwj xeeb (piv txwv li, 940nm rau 3D sensing).
- Kev Txiav thiab Ua Duab Los Ntawm Laser: Rau cov qauv geometries lossis cov optics tsis yog voj voog, kev txiav laser muab cov npoo huv si nrog qhov tawg me me, txo qhov xav tau kev sib tsoo ntug ntau.
Kev Sib Piv ntawm Cov Hom Iav rau AR/VR
| Cov Qauv | Iav High-Index | Silica sib xyaw ua ke | Borofloat / Alkali-Aluminosilicate |
|---|---|---|---|
| Refractive Index (nd) | > 1.80 | ~ 1.46 | ~ 1.52 |
| Kev nthuav dav thermal | Nruab nrab | Qis heev | Qis |
| Daim Ntawv Thov Tseem Ceeb | Cov Khoom Siv Waveguide Combiners | UV Optics / Lub Npog Ncauj | Npog Iav / Sensors |
| Qhov Zoo Tshaj Plaws | Kev ua kom me me | Kev Ruaj Ntseg Thermal | Tus nqi / Kev ruaj khov |
Kev Ntsuas thiab Kev Ntsuam Xyuas Zoo
Kev ua kom cov lus qhia no xav tau kev ntsuas niaj hnub. Peb siv interferometry los kos duab qhov tiaj tiaj thiab TTV thoob plaws tag nrho cov wafer nto. Rau kev lees paub txheej, spectrophotometers ntsuas kev sib kis thiab kev cuam tshuam ntawm ntau lub kaum sab xis ntawm qhov cuam tshuam (AOI).
Txawm koj tab tom tsim cov 3D sensing modules rau cov xov tooj ntse lossis cov diffractive waveguides nyuaj rau AR tsom iav, qhov zoo ntawm koj lub substrate txhais tau tias qhov txwv ntawm koj lub system kev ua haujlwm.
Koom tes nrog ZHHIMG
Ntawm ZHHIMG, peb tshwj xeeb hauv kev tsim cov iav wafers uas ua tau raws li qhov xav tau ntawm kev lag luam kho qhov muag. Txij li kev xaiv cov khoom siv mus rau qhov txheej txheem kawg, peb muab cov kev daws teeb meem kawg uas pab koj thawb cov ciam teb ntawm qhov ua tau hauv AR thiab VR.
Npaj txhij los ua kom koj qhov kev tsim kho qhov muag zoo dua?
Lub sijhawm tshaj tawm: Plaub Hlis-07-2026