Thaum hnav thiab tshem cov tsom iav, thov rub ob txhais ceg ntawm cov tsom iav nrog ob txhais tes thiab tshem tawm ntawm sab xub ntiag ntawm sab nraud. Hnav thiab tshem cov tsom iav nrog ib txhais tes ntawm ib sab tuaj yeem ua rau deformation thiab loosening.
2. Thaum tsis siv, qhwv lub lens nrog ib daim ntaub so, nrog lub lens tig mus rau sab saud thiab muab tso rau hauv ib lub hnab tshwj xeeb kom tsis txhob khawb ntawm lub lens thiab thav duab los ntawm cov khoom tawv.
3. Yog hais tias lub thav duab los yog lo ntsiab muag muaj plua plav, hws, roj, tshuaj pleev ib ce, thiab lwm yam, thov ntxuav nws nrog xab npum nruab nrab thiab dej sov, thiab tom qab ntawd siv cov ntaub mos muag kom nws qhuav.
4. Nws yog txwv tsis pub nyob hauv dej, tsau hauv dej kom ntev, thiab muab tso rau hauv qhov chaw ruaj khov kom raug tshav ntuj; Txwv tsis pub ncua ntev rau cov npoo tam sim no lossis hlau.
5. Thaum thim daim iav, thov quav daim iav sab laug ko taw ua ntej.
6. Yog hais tias lub iav tsom iav yog qhov nkhaus los yog sagging, nws yuav cuam tshuam rau qhov pom tseeb ntawm lub lens thaum siv dua. Thov mus rau lub khw muag khoom kom hloov kho dawb sai li sai tau.
7. Cov looj tsom iav dub tuaj yeem deform me ntsis tom qab siv rau lub sijhawm, uas yog ib txwm tshwm sim. Koj tuaj yeem mus rau tom khw muag khoom kom kho lawv.
8. Thov tsis txhob tso cov duab hloov xim hloov daim iav rau hauv qhov chaw uas muaj lub teeb muaj zog rau lub sijhawm ntev, txwv tsis pub nws yuav ua rau lub sijhawm siv sijhawm ntawm cov xim hloov xim. Txawm li cas los xij, yog tias cov xim photosensitive hloov maj mam poob vim hnav ntev, nws yuav tsis hloov cov nyhuv polarization. Thov siv nws nrog kev ntseeg siab.
Muaj kev paub txog kev saib xyuas looj tsom iav dub
Oct 31, 2023
Tso lus