Cov keeb kwm ntawm tib neeg thev naus laus zis feem ntau tuaj yeem pom tias yog kev nrhiav tsis tu ncua ntawm "kev txhim kho" - cov cuab yeej sab nraud uas ua kom muaj peev xwm ua tau zoo.
Hluav taws, piv txwv li, tau txais kev pab raws li "ntxiv-on" digestive system, tso ntau zog rau lub hlwb kev loj hlob. Xov tooj cua, yug nyob rau hauv lub xyoo pua puv 19, tau los ua ib tug "sab nraud suab qaum," tso cai rau lub suab mus rau lub ceev ntawm lub teeb nyob rau hauv lub ntiaj teb no.
Hnub no,AR (Augmented Reality)tau tshwm sim los ua "qhov muag sab nraud" - txuas rau lub ntiaj teb virtual thiab lub ntiaj teb tiag tiag, hloov pauv li cas peb pom peb ib puag ncig.
Txawm li cas los xij txawm hais tias tau cog lus ntxov, AR qhov kev hloov pauv tau poob qis dua qhov kev cia siab. Qee tus neeg tsim kho tshiab tau txiav txim siab kom nrawm qhov kev hloov pauv no.
Thaum lub Cuaj Hlis 24, Westlake University, tshaj tawm qhov kev ua tiav tseem ceeb hauv AR zaub thev naus laus zis.
Los ntawm kev hloov ib txwm iav los yog cob nrogsilicon carbide (SiC), lawv tau tsim ultra-nyias thiab lub teeb AR lo ntsiab muag - txhua qhov hnyav xwb2,7g uathiab xwb0.55mm tuab- thinner dua li cov looj tsom iav dub. Cov lo ntsiab muag tshiab kuj pab tauwide field-of-view (FOV) full-xim zaubthiab tshem tawm cov tsis muaj npe "cov duab zaj sawv" uas ua rau mob plague AR tsom iav.
Qhov kev tsim kho tshiab no tuaj yeem ua taureshape AR eyewear tsimthiab coj AR los ze zog rau cov neeg siv khoom loj.
Lub zog ntawm Silicon Carbide
Vim li cas thiaj xaiv silicon carbide rau AR lo ntsiab muag? Zaj dab neeg pib thaum xyoo 1893, thaum tus kws tshawb fawb Fab Kis Henri Moissan tau tshawb pom lub ntsej muag ci ntsa iab hauv cov qauv meteorite los ntawm Arizona - ua los ntawm carbon thiab silicon. Paub niaj hnub no raws li Moissanite, cov khoom siv zoo li lub pov haum no tau hlub rau nws qhov siab dua refractive index thiab brilliance piv rau pob zeb diamond.
Nyob rau hauv nruab nrab-20th caug xyoo, SiC kuj tau tshwm sim los ua ib tiam tom ntej semiconductor. Nws cov khoom siv thermal thiab hluav taws xob zoo tshaj plaws tau ua rau nws muaj nuj nqis hauv tsheb hluav taws xob, khoom siv sib txuas lus, thiab lub hnub ci hlwb.
Piv rau cov khoom siv silicon (300 ° C max), SiC Cheebtsam ua haujlwm txog li 600 ° C nrog 10x ntau zaus thiab ntau dua lub zog ua haujlwm. Nws cov thermal conductivity siab kuj pab ua kom txias sai.
Tsis tshua muaj - feem ntau pom nyob rau hauv meteorites - khoom siv dag zog SiC yog qhov nyuaj thiab kim. Loj hlob ib tug mere 2 cm siv lead ua yuav tsum tau ib tug 2300 ° C rauv khiav rau xya hnub. Tom qab kev loj hlob, cov khoom siv pob zeb diamond zoo li hardness ua rau kev txiav thiab kev ua haujlwm nyuaj.
Qhov tseeb, qhov tseem ceeb ntawm Prof. Qiu Min's lab ntawm Westlake University yog los daws cov teeb meem no raws nraim - tsim cov txheej txheem laser-raws li kev ua tau zoo hlais SiC muaju, ua kom muaj txiaj ntsig zoo thiab txo cov nqi.
Thaum lub sij hawm tus txheej txheem no, pab neeg no kuj pom lwm yam khoom ntiag tug ntawm ntshiab SiC: ib qho impressive refractive index ntawm 2.65 thiab optical clarity thaum undoped - zoo tagnrho rau AR optics.
Kev Txhaum Cai: Diffractive Waveguide Technology
Ntawm Westlake University'sNanophotonics thiab Instrumentation Lab, pab pawg kws tshaj lij kho qhov muag tau pib tshawb nrhiav yuav ua li cas siv SiC hauv AR lo ntsiab muag.
In diffractive waveguide-raws li AR, ib lub projector me me nyob rau sab ntawm lub tsom iav emits lub teeb los ntawm txoj kev ua tib zoo tsim.Nano-scale gratingsntawm lub lens diffraction thiab coj lub teeb, reflecting nws ntau zaus ua ntej coj nws precisely rau hauv lub qhov muag.
Yav dhau los, vimtsawg refractive index ntawm iav (kwv yees 1.5-2.0), tsoos waveguides yuav tsum tauntau txheej txheej- ua rautuab, hnyav lo ntsiab muagthiab cov khoom siv tsis pom kev pom zoo li "cov qauv zaj sawv" tshwm sim los ntawm ib puag ncig lub teeb diffraction. Kev tiv thaiv txheej txheej ntxiv ntxiv rau lub lens bulk.
NrogSiC's ultra-high refractive index (2.65), aib txheej waveguideyog tam sim no txaus rau tag nrho-xim duab nrog ibFOV tshaj 80 °-ob lub peev xwm ntawm cov khoom siv pa. Qhov no dramatically txhim khoimmersion thiab duab zoorau gaming, cov ntaub ntawv visualization, thiab cov kev siv.
Tsis tas li ntawd, cov qauv grating meej thiab kev ua haujlwm zoo heev txo qis cov teebmeem zaj sawv. Ua ke nrog SiC'sTshwj xeeb thermal conductivity, cov lo ntsiab muag tseem tuaj yeem pab cuam tshuam cov cua sov uas tsim los ntawm AR Cheebtsam - daws lwm qhov kev sib tw hauv AR tsom iav.
Rov xav txog Txoj Cai ntawm AR Design
Interestingly, qhov kev tawg no pib nrog cov lus nug yooj yim los ntawm Prof. Qiu:"Puas 2.0 refractive index txwv yeej tuav?"
Tau ntau xyoo, kev lag luam cov lus pom zoo suav tias qhov ntsuas ntsuas qhov ntsuas siab tshaj 2.0 yuav ua rau qhov muag tsis pom kev. Los ntawm kev sib tw txoj kev ntseeg no thiab siv SiC, pab pawg tau qhib qhov muaj peev xwm tshiab.
Tam sim no, tus qauv SiC AR tsom iav-Lub teeb yuag, thermally ruaj khov, nrog crystal-clear puv xim duab- npaj los cuam tshuam kev lag luam.
Lub neej yav tom ntej
Nyob rau hauv lub ntiaj teb uas AR yuav sai sai no reshape li cas peb saib kev muaj tiag, zaj dab neeg ntawm notig qhov tsis tshua muaj "qhov chaw yug lub pov haum" rau hauv kev ua haujlwm siab kho qhov muagyog ib tug pov thawj rau tib neeg ingenuity.
Los ntawm kev hloov pauv rau pob zeb diamond mus rau cov khoom siv tshiab rau tom ntej-gen AR,silicon carbideyog tiag tiag teeb pom kev rau pem hauv ntej.
Txog Peb
Peb yogXKH, ib lub chaw tsim khoom tshwj xeeb hauv Silicon Carbide (SiC) wafers thiab SiC crystals.
Nrog cov peev txheej ntau lawm thiab xyoo ntawm kev txawj ntse, peb muabHigh-purity SiC cov ntaub ntawvrau tiam tom ntej semiconductors, optoelectronics, thiab tawm AR/VR technologies.
Ntxiv rau cov ntawv thov kev lag luam, XKH kuj tsimhwm Moissanite gemstones (synthetic SiC), dav siv hauv cov hniav nyiaj hniav kub zoo rau lawv qhov tshwj xeeb brilliance thiab durability.
Seb rauhwj chim electronics, advanced optics, los yog khoom kim heev hniav nyiaj hniav kub, XKH muab cov khoom lag luam txhim khu kev qha, zoo SiC kom tau raws li cov kev xav tau ntawm kev lag luam thoob ntiaj teb.
Post lub sij hawm: Jun-23-2025