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Yuav ua li cas xaiv qhov tseeb refractive index ntawm lens?
Thaum xaiv lub lens, yuav muaj 1.56, 1.61, 1.67, 1.74 thiab lwm yam kev xaiv, tus nqi no yog hais txog qhov ntsuas qhov ntsuas ntawm lub lens.Qhov siab dua qhov refractive index ntawm lub lens, qhov thinner lub lens yog thiab qhov nyuaj ntawm lub lens yog.Tau kawg, qhov siab dua qhov ref ...Nyeem ntxiv -
Taw qhia thiab lub hauv paus ntsiab lus ntawm Photochromic lo ntsiab muag
Sun Sensitive Xim Hloov Photochromic Pigment Photochromic lo ntsiab muag yog tsim los ntawm kev sib xyaw photochromic pigments nrog lens monomer thiab tom qab ntawd txhaj rau hauv pwm.Photochromic pigment yog ib qho tshwj xeeb tsim hmoov los hloov xim thaum raug UV lub teeb, tab sis reacts zoo tshaj plaws rau ...Nyeem ntxiv -
IMAX, DOLBY… Qhov txawv yog dab tsi
IMAX Tsis yog tag nrho IMAX yog "IMAX LASER", IMAX Digital VS Laser IMAX muaj nws tus kheej txheej txheem los ntawm kev ua yeeb yaj kiab mus rau kev tshuaj ntsuam, uas lav qhov siab tshaj plaws ntawm kev pom zoo.IMAX muaj cov thev naus laus zis tshiab, cov ntxaij vab tshaus loj dua, qib suab ntau dua, thiab xaiv xim ntau dua."Standard IMAX" e...Nyeem ntxiv -
Lens khoom, nkag siab vim li cas koj lo ntsiab muag yog tuab los yog nyias
iav lo ntsiab muag.Thaum ntxov ntawm kev kho qhov muag tsis pom kev, tag nrho cov tsom iav qhov muag tau ua los ntawm iav.Cov khoom tseem ceeb rau iav lo ntsiab muag yog iav optical.Lub refractive index yog siab dua li ntawm cov iav lo ntsiab muag, yog li iav lo ntsiab muag yog thinner dua resin lens nyob rau tib lub hwj chim.Lub refractive index ntawm iav lens ...Nyeem ntxiv -
Tuam Tshoj International Optics Fair - Beijing npaj rau 2022-09-14 txog 2022-09-16
Lub International Optical Industry Exhibition rau Tuam Tshoj pib nyob rau hauv Shanghai nyob rau hauv 1985. Nyob rau hauv 1987, lub yeeb yam tau tsiv mus rau Beijing, pom zoo los ntawm Ministry of Foreign Economic Relation thiab Trade (tam sim no Ministry of Commerce) raws li ib tug official thoob ntiaj teb optical exhibition rau lub teb chaws.Raws li optical ind...Nyeem ntxiv -
Hom tshuaj twg yog qhov zoo tshaj plaws rau koj?
Tib Vision Lens VS.Bifocal VS.Progressive ib qho pom kev lo ntsiab muag muab ib qho kev kho qhov muag.Qhov no txhais tau hais tias lawv faib ua kom pom tseeb sib npaug ntawm tag nrho lub lens, es tsis txhob faib cov tsom iav ntawm sab saum toj thiab hauv qab ib nrab, ib yam li cov ntaub ntawv nrog bifocals.Ib leeg...Nyeem ntxiv
