Cov kws tshawb fawb tub rog Asmeskas xav tau ib lub tuam txhab los tsim cov cuab yeej pom kev hmo ntuj uas me dua thiab sib zog dua li cov tsom iav hmo ntuj tam sim no, uas yog hais txog qhov loj thiab qhov hnyav ib yam li ob lub tsom iav. Lawv nrhiav kev daws teeb meem los ntawm Physical Sciences Inc.
Kev Tiv Thaiv Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb (DARPA) cov thawj coj tau tshaj tawm hnub Wednesday txog 6.4 lab daim ntawv cog lus nrog Physical Sciences Corporation rau Eyewear Form Factor Enhanced Night Vision (ENVision) project.
Current night vision goggles are typically 4 inches long and weigh 2.2 pounds. Creates a lot of torque on the wearer's neck. This would limit the wearer's flexibility, and prolonged use of these optoelectronic devices could lead to chronic injury.
Niaj hnub nimno tsom iav qhov muag pom kev hmo ntuj kuj ua rau tus neeg hnav nrog qhov nqaim ntawm qhov pom thiab feem ntau muaj qhov txwv tsis pub pom rau cov duab spectral nyob ze -infrared spectral band, txwv qhov kev nkag siab ntawm qhov chaw.
Qhov no yog qhov sib piv rau cov optics refractive thiab cov duab intensifier raj siv rau kev yees duab (cov cuab yeej hauv ob qho tib si niaj hnub pom kev hmo ntuj tseem tsis tau hloov pauv txij li thaum nws pib). Hloov chaw, txoj haujlwm DARPA ENVision tau nug SRI International, UCSD, thiab Raytheon BBN kom kov yeej cov kev txwv no los ntawm kev txhim kho qhov ncaj qha - pom kev hmo ntuj pom kev uas kwv yees qhov loj thiab qhov hnyav ntawm cov tsom iav ib txwm.
SRI International yeej 5.2 lab ENVision daim ntawv cog lus thaum lub Kaum Ib Hlis 3, 2021, UCSD yeej 3 lab ENVision daim ntawv cog lus rau lub Cuaj Hlis 24, 2021, thiab Raytheon BBN yeej 230 daim ntawv cog lus rau lub Cuaj Hlis 23, 2021 lab nyiaj cog lus.
The three agencies will develop small, lightweight night vision goggles that extend the spectral range beyond the near-infrared to include short-, mid- and long-wave infrared spectral bands through a common aperture, giving users access to the 1.5-12µm spectral range. In addition, these night vision glasses can expand the user's field of view to natural vision around 100 degree .
Cov kws tshaj lij kho qhov muag tau sim nthuav dav kev pom ntawm cov tsom iav hmo ntuj, tab sis kev txhim kho tau los ntawm tus nqi ntawm kev nce qhov system loj, qhov hnyav thiab hnav thiab tsim kua muag rau cov neeg siv. Txoj haujlwm ENVision lub hom phiaj txhawm rau ua kom pom kev ncaj qha infrared los ntawm photon upconversion, tshawb nrhiav cov thev naus laus zis tom ntej hauv kev pom kev hmo ntuj.
Thaum lub sijhawm pom kev hmo ntuj tam sim no siv ntau- cov txheej txheem, cov physics ntawm ncaj qha upconverting infrared photons mus rau pom lub teeb tau paub txij li thaum lub invention ntawm lub laser nyob rau hauv 1960s. Direct photon upconversion cuam tshuam nrog kev nqus ntawm ob lossis ntau dua photons thiab re-emission ntawm ntau zog photons.
Tam sim no, cov txheej txheem no tsis muaj txiaj ntsig thiab muaj qhov txwv bandwidth ntawm lub teeb uas tuaj yeem hloov pauv ib txhij. Txawm li cas los xij, kev nce qib tsis ntev los no hauv cov khoom siv, xws li polar- qauv thiab rhiab core- plhaub qauv nanoparticles, tau qhib txoj hauv kev tshiab los tshawb txog photonic upconversion.
DARPA cov kws tshawb fawb hais tias kev pom kev hmo ntuj raws li photon upconversion yuav tshem tawm qhov xav tau ntawm qee yam khoom thiab tuaj yeem ua rau txhua yam yooj yim dua - kho qhov muag pom kev hmo ntuj yav tom ntej, xws li hmo ntuj pom kev tiv thaiv kab mob.
Flat optics thiab tiaj tus duab intensifiers tso cai rau saib ncaj qha ntawm ntau lub infrared bands los ntawm ib qho aperture. Cov khoom siv zoo xws li cov khoom siv kho qhov muag diffractive thiab cov khoom siv metamaterials ua rau ib tus tuaj yeem ua haujlwm kho qhov muag deb tshaj li cov khoom siv refractive rau hauv ib qho khoom siv kho qhov muag.
Txawm hais tias kev pom dav dav, dav bandwidth, thiab cov duab zoo siab tuaj yeem ua tiav ib tus zuj zus, kev sib txuas cov yam ntxwv no hauv kev xyaum tseem yog qhov nyuaj. Ntxiv nrog rau cov optics tiaj tus, cov duab txhim kho kuj tseem tuaj yeem hloov lub teeb tsis muaj zog infrared rau hauv pom lub teeb photons pom tau los ntawm qhov muag liab qab.
Txoj haujlwm ENVision yuav kav plaub xyoos, muab faib ua ob xyoos, thiab yuav suav nrog ob qhov kev qhia: Tus Qauv thiab Kev hloov pauv. Cov neeg koom nrog hauv thawj qhov chaw thev naus laus zis yuav tsim cov qauv ntawm cov iav tsom iav qhov zoo tshaj plaws kho qhov muag pom kev hmo ntuj; cov neeg koom nyob rau hauv qhov thib ob technology cheeb tsam yuav kawm broadband ncaj qha photon upconversion.
GMKJ LED tau koom nrog kev noj qab haus huv thiab ntse teeb pom kev zoo, muab kev lag luam nrog ntau yam ntawm UVA UVB UVC LED, infrared IR LED VCSEL cov khoom thiab cov kev daws teeb meem, thiab muaj ntau pua lub siab -cov koom tes zoo hauv kev lag luam hauv tsev thiab txawv teb chaws los koom ua ke txhawb kev siv lub teeb pom kev zoo los tsim kev noj qab haus huv thiab ntse lub neej. .
