Yog li cas koj paub ntau npaum li cas txog cov qauv txheej txheem ntawm cov tsho khuam reflective?

Lub sijhawm tuaj yeem taug qab rov qab mus rau xyoo 1920, thaum tib neeg pom tias miv lub qhov muag tuaj yeem tso lub teeb thaum hmo ntuj, yog li txawm tias cov miv dub hauv qhov tsaus ntuj tuaj yeem pom los ntawm lawv lub qhov muag ci. Yog li ntawd, tib neeg pib kawm cov ntaub ntawv xav tau.
Xyoo 1950, Suav kws tshawb fawb Dr. Dong Qifang tau tsim cov iav hlaws taw qhia. Cov iav hlaws yog ua los ntawm silicate. Ntxiv nrog rau kev ruaj ntseg tshuaj zoo, txhua yam muaj zog thiab hluav taws xob rwb thaiv tsev, qhov tseem ceeb tshaj plaws yog tias lawv tuaj yeem cuam tshuam lub teeb rov qab. Lub hauv paus ntsiab lus ntawm retroreflection yog qhov tshwj xeeb vim tias nws tuaj yeem cuam tshuam lub teeb raws li txoj hauv kev qub yam tsis muaj lub kaum sab xis deflection.
Cov iav hlaws reflective khoom tau los ua. Ntau lab ntawm qhov ntsuas siab refractive iav hlaws yog sib npaug ntawm cov substrate, txog 3/4 ntawm txoj kab uas hla ntawm cov ntaub plaub. Qhov saum npoo ntawm qhov thib ob ib nrab ntawm cov hlaws yog coated nrog ib txheej hlau reflective.
Thaum lub teeb ci rau ntawm qhov chaw ntawm cov khoom, nws tau cuam tshuam rau lub teeb ci los ntawm lub hauv paus ntsiab lus ntawm retroreflection, uas tuaj yeem txhim kho qhov pom ntawm qhov tsaus ntuj thiab hmo ntuj ib puag ncig, thiab muaj qhov muag zoo, ceeb toom, thiab kev nyab xeeb.
Nws yog ib qho tseem ceeb tshwj xeeb rau hnav khaub ncaws ua haujlwm ua los ntawm cov khoom siv uas muaj kev cuam tshuam los muab qhov muag pom kev ceeb toom cuam tshuam hauv kev tsim kho txoj kev, mus ncig hmo ntuj, kev ua si sab nraum zoov, kev pab thiab cawm, thiab kev ua haujlwm pub dawb.
Reflective vests tuaj yeem ua kom pom tseeb tias tus neeg hnav lub ntsej muag pom, zam kev nyab xeeb xwm txheej tshwm sim los ntawm lub teeb, thiab pab kom lwm tus pom lawv tus kheej sai thiab sai.