Automotive rearview iav yog tsim los ntawm ntau yam ntaub ntawv. Cov vaj tse feem ntau yog ua los ntawm cov yas xws li ABS, TPE, ASA, lossis PA; cov ntaub ntawv no muaj kev tiv thaiv rau huab cua hnyav thiab UV hluav taws xob, thaum tseem muab lub zog siab thiab tawv uas xav tau los tiv thaiv ntev ntev - ib puag ncig raug. Cov qauv txhawb nqa feem ntau yog ua los ntawm hlau. Hais txog cov xim pleev xim, cov iav hauv tsev feem ntau siv nyiaj lossis txhuas, nrog rau qee qhov siv chromium; thoob ntiaj teb, txawm li cas los xij, chrome- cov iav tsom iav muaj ntau qhov hloov pauv nyiaj thiab cov xim txhuas, thiab cov tsheb feem ntau tau nruab nrog cov yam ntxwv tiv thaiv - glare. Cov iav iav lawv tus kheej feem ntau yog ua los ntawm iav nrog cov ntsiab lus silicon oxide ntau tshaj 70%.
Cov iav tiaj tus feem ntau muab tso rau ntawm tus neeg tsav tsheb sab vim tias lawv cuam tshuam qhov kev ncua deb ntawm lwm lub tsheb, thaum lub iav convex yog siv rau ntawm cov neeg caij tsheb los muab kev pom dav dua. Cov iav convex no-tseem hu ua wide-angle mirrors- siv lawv cov duab kheej kheej sab nrauv rau kev xav, ua kom pom lub teeb kom nthuav dav qhov pom kev. Sab hauv rearview iav feem ntau yog sib sau ua ke siv UV- kho cov nplaum. Tsis tas li ntawd, cov khoom siv PC / ASA alloy yog ua haujlwm; cov no muab cov khoom siv zoo tshaj plaws ntawm PC nrog cov dej ntws zoo heev thiab kev ua tiav ntawm ASA, ua rau cov khoom siv uas muaj cov khoom siv zoo heev, kev cuam tshuam tsis kam, toughness, thiab weatherability, thaum tswj qhov seem stability ntawm qhov kub thiab txias.
Tom ntej no - tiam rearview tsom iav suav nrog kev hloov pauv hlau tungsten oxide hmoov ua cov khoom muaj txiaj ntsig los txhim kho qhov dimming thiab tiv thaiv - lub peev xwm glare. Cov khoom tseem ceeb yog tungsten trioxide, daj ntseg daj, orthorhombic crystalline hmoov uas yog insoluble hauv dej tab sis soluble hauv alkalis thiab me ntsis soluble hauv acids. Hauv cov ntsiab lus, cov khoom siv rau ntau yam khoom siv thiab kev ua haujlwm ntawm automotive rearview tsom iav raug xaiv raws li cov kev cai tshwj xeeb los ua kom pom kev ua haujlwm zoo thiab kev nyab xeeb.