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Lub lens photochromic yog dab tsi?
01, photochromic lens yog dab tsi?Cov lo ntsiab muag hloov xim (photochromic lo ntsiab muag) yog lo ntsiab muag uas hloov xim hauv kev teb rau cov kev hloov ntawm UV siv thiab kub.Cov xim hloov xim yog tsim los ntawm kev ntxiv cov duab sib txawv (xws li nyiaj halide, nyiaj barium acid, ...Nyeem ntxiv -
Yuav ua li cas los xyuas seb lub teeb xiav thaiv lub lens puas yog lub teeb xiav thaiv tiag tiag?
Tus editor teb: Nws puas yog qhov teeb meem ntawm tus cwj mem xeem?Muaj peb txoj hauv kev los txheeb xyuas seb lub teeb xiav thaiv lub lens puas muaj lub luag haujlwm ntawm lub teeb xiav thaiv: (1) Kev sim ntsuas ntawm spectrophotometer.Qhov no yog ib txoj kev kuaj, cov khoom siv yog kim, hnyav, ...Nyeem ntxiv -
Lenses kuj muaj hnub tas sij hawm, koj cov lo ntsiab muag yuav tsum tau hloov
Ib yam li cov log tsheb, txhuam hniav thiab roj teeb, lo ntsiab muag kuj muaj hnub tas sij hawm.Yog li ntawd, lo ntsiab muag yuav kav ntev npaum li cas?Qhov tseeb, lo ntsiab muag tuaj yeem siv tau rau 12 lub hlis txog 18 lub hlis.1. Lens freshness Thaum lub sij hawm siv optical lens, qhov saum npoo yuav hnav mus rau ib qho twg.Lub lens resin tuaj yeem ...Nyeem ntxiv -
Cov lo ntsiab muag zoo dua - PC qhov chaw lo ntsiab muag, koj puas paub?
1. Lub lens PC yog dab tsi?PC yog ib qho kev ua tau zoo ntawm cov thermoplastic engineering yas, nws yog tsib engineering plastics hauv qhov pom zoo ntawm cov khoom, tab sis kuj nyob rau xyoo tas los no kev loj hlob sai ntawm cov yas engineering yas.Tam sim no, nws tau siv dav hauv ...Nyeem ntxiv -
PC diaphragm siv lo ntsiab muag los ua lub ntsiab?Cov txiaj ntsig ntawm PC lo ntsiab muag yog dab tsi?
Polycarbonate (PC), tseem hu ua PC yas;Nws yog ib qho polymer uas muaj carbonate pawg hauv cov saw hlau molecular.Raws li cov qauv ntawm ester pawg, nws tuaj yeem muab faib ua pawg aliphatic, pawg aromatic, pawg aliphatic - pawg aromatic thiab lwm hom.PC Lens Cov...Nyeem ntxiv -
3D tsom iav rau 3D tsos ua haujlwm li cas?Dab tsi yog kev faib tawm ntawm 3D tsom iav?
Vim li cas koj hnav 3D tsom iav saib 3D tsos?Thaum shooting zaj duab xis yuav tsum tau hnav 3 d tsom iav yog nyob rau hauv qee txoj kev, tib neeg pom cov khoom ntawm lub stereo nyhuv, vim hais tias 3 d zaj duab xis nrog ob lub koob yees duab, thiab simulate tib neeg ob lub qhov muag, cia lub qhov muag yog lub koob yees duab duab, nyob rau hauv lub qhov muag sab xis ...Nyeem ntxiv -
Anti-xiav lub teeb thiab anti-xiav lub teeb lens
Peb xa mus rau lub teeb uas tib neeg lub qhov muag pom tau raws li pom lub teeb, uas yog, "liab txiv kab ntxwv daj ntsuab xiav xiav xiav ntshav".Raws li ntau lub teb chaws tus qauv, pom lub teeb nyob rau hauv lub wavelength ntau ntawm 400-500 nm yog hu ua xiav lub teeb, uas yog lub shortest wavelength thiab th ...Nyeem ntxiv -
Yuav ua li cas 3D tsom iav tsim muaj txiaj ntsig peb-dimensional?
Yuav ua li cas 3D tsom iav tsim muaj txiaj ntsig peb-dimensional?Muaj ntau ntau hom 3D tsom iav, tab sis lub hauv paus ntsiab lus ntawm kev tsim cov nyhuv peb sab yog tib yam.Qhov laj thawj yog vim li cas tib neeg lub qhov muag tuaj yeem hnov qhov kev xav peb sab yog vim qhov muag sab laug thiab sab xis o ...Nyeem ntxiv -
Progressive lo ntsiab muag rau kev pom kev tshaj 40
Cov lo ntsiab muag zoo rau kev pom kev tshaj 40 Tom qab hnub nyoog 40, tsis muaj leej twg nyiam tshaj tawm lawv lub hnub nyoog - tshwj xeeb tshaj yog thaum koj pib muaj teeb meem nyeem ntawv zoo.Ua tsaug, niaj hnub no cov tsom iav tsom iav ua rau nws ua tsis tau rau lwm tus qhia koj tau mus txog "hnub nyoog bifocal."Prog...Nyeem ntxiv -
Tiv thaiv lub teeb xiav tsom iav tuaj yeem tiv thaiv qhov muag, tseem tuaj yeem tiv thaiv myopic?Nco ntsoov!Nws tsis yog rau txhua tus…
Kuv paub tseeb tias koj tau hnov cov tsom iav xiav thaiv, txoj cai?Ntau tus neeg yuav tsum tau ua haujlwm nrog cov xov tooj ntawm tes thiab khoos phis tawj rau lub sijhawm ntev, tshwj xeeb yog nruab nrog lub teeb tsom iav tsom iav;Ntau tus niam txiv tau hnov tias cov tsom iav zoo li no tuaj yeem tiv thaiv kev mob myopia, tau npaj ib khub rau th...Nyeem ntxiv -
4 Hom Lens Txheej rau Cov iav
Lens coatings yog siv rau cov tsom iav tsom iav los txhim kho cov kav ntev, kev ua tau zoo thiab cov tsos ntawm koj cov iav.Qhov no muaj tseeb txawm tias koj hnav ib lub zeem muag, bifocal lossis cov lo ntsiab muag loj.Anti-Scratch Txheej Tsis muaj iav qhov muag - tsis txawm iav lo ntsiab muag - yog 100% khawb-pov thawj.Txawm li cas los xij, lenses ...Nyeem ntxiv -
Lub physics ntawm 3D tsom iav
3D tsom iav, tseem hu ua "stereoscopic tsom iav," yog tsom iav tshwj xeeb uas tuaj yeem siv los saib 3D duab lossis duab.Stereoscopic tsom iav tau muab faib ua ntau hom xim, ntau dua yog liab xiav thiab liab xiav.Lub tswv yim yog cia ob lub qhov muag pom tsuas yog ib qho ntawm ob daim duab ...Nyeem ntxiv
