Cov kws tshawb fawb tsim cov txheej txheem 3D luam tawm tshiab los tsim cov iav microstructures nrog lub teeb

Raws li kev tshawb fawb tshiab luam tawm hauv phau ntawv Journal Science, cov kws tshawb fawb ntawm University of California, Berkeley tau tsim ib txoj hauv kev tshiab rau 3D luam ntawv iav microstructures. Txoj kev no yog nrawm dua thiab tsim cov khoom siv kho qhov muag zoo dua, tsim kev yooj yim thiab lub zog.

Cov kws tshawb fawb, koom tes nrog cov kws tshawb fawb ntawm University of Freiburg hauv lub teb chaws Yelemees, tau txuas ntxiv lub peev xwm ntawm 3D luam ntawv txheej txheem uas lawv tau tsim peb xyoos dhau los, Computational Axial Lithography (CAL), los luam cov yam ntxwv zoo dua thiab luam tawm hauv iav. Lawv hu ua qhov system tshiab "micro-CAL."

iav feem ntau yog cov khoom ntawm kev xaiv los ua cov khoom siv microscopic complex, nrog rau cov lo ntsiab muag me me, cov koob yees duab zoo siv hauv smartphones thiab endoscopes, thiab cov khoom siv microfluidic siv los tshuaj xyuas lossis ua cov kua dej me me. Txawm li cas los xij, txoj kev tsim khoom tam sim no tuaj yeem qeeb, kim, thiab txwv tsis pub lawv lub peev xwm ua tau raws li qhov xav tau ntawm kev lag luam loj hlob.

Cov txheej txheem CAL yog qhov txawv ntawm cov txheej txheem kev lag luam 3D luam ntawv niaj hnub no, uas tsim cov khoom los ntawm cov txheej txheem nyias. Cov txheej txheem no tuaj yeem siv sijhawm ntev thiab tuaj yeem ua rau lub ntsej muag ntxhib. Txawm li cas los xij, CAL 3D luam tag nrho cov khoom tib lub sijhawm. Cov kws tshawb fawb tau siv lub laser los tsim cov qauv ntawm lub teeb rau hauv cov khoom siv photosensitive, tsim kom muaj peb-dimensional lub teeb koob, uas tom qab ntawd solidified rau hauv cov duab xav tau. Cov txheej txheem tsis muaj txheej txheem ntawm CAL ua rau cov chaw du thiab cov duab geometry nyuaj.

Qhov kev tshawb fawb no thawb cov ciam teb ntawm CAL, ua kom pom nws lub peev xwm luam tawm microscale nta hauv iav qauv. "Thaum peb thawj zaug luam tawm cov qauv no hauv xyoo 2019, CAL tuaj yeem luam tawm cov khoom rau hauv cov khoom siv polymers nrog cov yam ntxwv ntawm ib feem peb ntawm ib millimeter loj," said Hayden Taylor, tus thawj coj tshawb nrhiav thiab tus xibfwb ntawm kev siv tshuab engineering ntawm UC Berkeley. .

"Tam sim no, nrog micro-CAL, peb tuaj yeem luam tawm cov khoom hauv polymers nrog cov yam ntxwv me me li li 20 labths ntawm ib lub 'meter', los yog li ib feem peb ntawm cov plaub hau dav ntawm tib neeg cov plaub hau. Thiab, thawj zaug, peb tau pom txoj hauv kev no. Tsuas yog koj tuaj yeem luam tawm hauv cov polymers, tab sis koj tuaj yeem luam tawm hauv iav, nrog rau cov yam ntxwv qis mus txog 50 lab ntawm ib 'meter'.

Txhawm rau luam tawm iav, Taylor thiab nws pab neeg tshawb fawb tau koom tes nrog cov kws tshawb fawb hauv University of Freiburg, uas tsim cov khoom siv tshwj xeeb uas muaj nanoparticles ntawm iav ncig los ntawm cov kua nplaum nplaum nplaum. Cov teeb pom kev zoo digital los ntawm lub tshuab luam ntawv solidifies lub binder, thiab cov kws tshawb fawb tom qab ntawd kub cov khoom luam tawm kom tshem tawm cov ntawv khi thiab fuse cov khoom ua ke rau hauv cov khoom ntawm iav ntshiab.

"Lub ntsiab tseem ceeb ntawm no yog qhov refractive index ntawm lub binder yog yuav luag tib yam li lub refractive index ntawm lub iav, yog li ntawd muaj me ntsis tawg ntawm lub teeb raws li nws dhau los ntawm cov khoom," Taylor hais. Cov txheej txheem luam ntawv CAL thiab Glassomer (GmbH) tsim cov khoom no yog ib qho kev sib xyaw ua ke zoo tshaj plaws. "

Pab pawg tshawb fawb kuj tau ua cov kev sim thiab pom tias CAL-luam cov khoom iav muaj lub zog ruaj khov dua li cov khoom siv los ntawm cov txheej txheem luam ntawv txheej txheem. Taylor hais tias "Thaum cov khoom iav muaj qhov tsis xws luag lossis tawg, lossis muaj qhov ntxhib saum npoo, lawv nyiam tawg yooj yim dua," Taylor hais. Yog li ntawd, piv rau lwm cov txheej txheem 3D luam ntawv txheej txheem, CAL ua rau cov khoom nrog smoother nto. Kev muaj peev xwm yog qhov muaj txiaj ntsig zoo. "

CAL txoj kev luam ntawv 3D muab cov tuam txhab tsim cov khoom siv iav tsom iav ib txoj hauv kev tshiab thiab ua tau zoo dua kom tau raws li cov neeg siv khoom xav tau rau geometry, loj thiab kho qhov muag thiab cov khoom siv kho qhov muag. Tshwj xeeb, qhov no suav nrog cov tuam txhab tsim cov khoom siv kho qhov muag microscopic uas yog ib feem tseem ceeb ntawm cov koob yees duab compact, virtual reality headsets, advanced microscopes thiab lwm yam cuab yeej tshawb fawb. "Kev muaj peev xwm tsim cov khoom no nrog kev nrawm dua thiab kev ywj pheej ntawm geometric muaj peev xwm ua rau muaj peev xwm ua tau zoo dua tshiab lossis cov nqi qis dua," Taylor hais.