Lub caij ntuj no los txog, tiam sis lub hnub tseem ci ntsa iab. Raws li txhua tus neeg paub txog kev noj qab haus huv nce ntxiv, ntau thiab ntau tus neeg hnav looj tsom iav dub thaum tawm mus. Rau ntau tus phooj ywg, qhov laj thawj ntawm kev hloov cov looj tsom iav dub feem ntau yog vim lawv tawg, ploj, lossis tsis zam txaus ... Tab sis qhov tseeb, muaj lwm qhov laj thawj tseem ceeb uas feem ntau tsis quav ntsej los ntawm txhua tus, thiab qhov ntawd yog cov looj tsom iav dub "muag vim kev laus."
Tsis ntev los no, peb feem ntau pom qee cov lus ceeb toom tias "cov looj tsom iav dub muaj lub neej tsuas yog ob xyoos thiab yuav tsum tau hloov tom qab lub sijhawm ntawd." Yog li, puas yog lub neej ntawm looj tsom iav dub tiag tiag tsuas yog ob xyoos?
looj tsom iav dub tiag tiag "tau laus"
Cov khoom siv tseem ceeb ntawm lub looj tsom iav dub nws tus kheej tuaj yeem nqus tau qee cov kab hluav taws xob ultraviolet, thiab cov txheej txheem ntawm cov looj tsom iav dub kuj tseem tuaj yeem cuam tshuam qee qhov ntawm cov hluav taws xob ultraviolet. Ntau lub looj tsom iav dub tseem muaj cov khoom siv UV-absorbing ntxiv rau lawv. Ua li no, feem ntau ntawm cov kab hluav taws xob ultraviolet tuaj yeem "kwv tawm" thiab tsis tuaj yeem ua mob rau peb lub qhov muag.
Tab sis qhov kev tiv thaiv no tsis ruaj khov.
Vim tias cov hluav taws xob ultraviolet nqa lub zog siab, lawv yuav ua rau cov khoom siv looj tsom iav dub thiab txo lub peev xwm ntawm cov khoom xyaw tshuaj pleev thaiv hnub kom nqus tau ultraviolet rays. Cov txheej ci ci nyob rau sab nraud ntawm looj tsom iav dub yog qhov tshwm sim ntawm cov hlau vapor deposition, thiab cov coatings no tuaj yeem hnav, oxidize, thiab txo lawv lub peev xwm. Cov no yuav txo qhov muaj peev xwm tiv thaiv UV ntawm looj tsom iav dub.
Tsis tas li ntawd, yog tias peb tsis saib xyuas peb cov looj tsom iav dub, nws feem ntau yuav ua rau lub ntsej muag ncaj qha, xoob ntawm lub tuam tsev, deformation, thiab kev puas tsuaj ntawm cov thav duab thiab lub qhov ntswg, thiab lwm yam, uas yuav cuam tshuam rau kev siv thiab kev tiv thaiv ntawm cov looj tsom iav dub.
Puas yog nws tsim nyog los hloov nws txhua ob xyoos?
Ua ntej tshaj plaws, kuv xav hais tias qhov no tsis yog lus xaiv, tab sis qhov kev tshawb fawb no yeej muaj tiag.
Xib fwb Liliane Ventura thiab nws pab neeg los ntawm University of Sao Paulo hauv Brazil tau ua ntau yam kev tshawb fawb txog looj tsom iav dub. Hauv ib qho ntawm lawv cov ntaub ntawv, lawv tau hais tias lawv pom zoo kom hloov looj tsom iav dub txhua ob xyoos. Qhov kev txiav txim siab no kuj tau hais los ntawm ntau cov xov xwm, thiab tam sim no peb feem ntau pom cov ntsiab lus Suav zoo sib xws.
Tab sis qhov kev txiav txim siab no yeej muaj qhov tseeb, uas yog, cov kws tshawb fawb tau suav nrog kev ua haujlwm ntawm cov looj tsom iav dub hauv Brazil ... uas yog, yog tias koj hnav looj tsom iav dub rau 2 teev hauv ib hnub, lub peev xwm tiv thaiv UV ntawm cov looj tsom iav dub yuav txo qis tom qab ob xyoos. , yuav tsum tau hloov.
Cia peb xav. Hauv Brazil, lub hnub ci zoo li qhov no nyob rau ntau qhov chaw… Tom qab tag nrho, nws yog lub tebchaws South American nyiam, thiab ntau tshaj li ib nrab ntawm lub tebchaws nyob rau hauv lub tropics…
Yog li ntawm qhov kev xav no, cov neeg nyob rau sab qaum teb kuv lub tebchaws tsis zoo li yuav hnav looj tsom iav dub rau 2 teev ib hnub. Yog li ntawd, peb tuaj yeem txuag tau qee qhov nyiaj. Nyob ntawm qhov zaus ntawm hnav, nws tsis muaj teeb meem hnav nws rau ib lossis ob xyoos ntxiv thiab hloov nws. Cov lus pom zoo muab los ntawm qee cov looj tsom iav dub lossis cov looj tsom iav ua kis las feem ntau yog nyob ntawm qhov siv ntau zaus, thiab lawv yuav tsum tau hloov txhua 2 mus rau 3 xyoos.
Qhov no yuav ua rau koj lub looj tsom iav ntev ntev
Ib nkawm looj tsom iav dub feem ntau tsis pheej yig. Yog tias peb saib xyuas nws zoo, nws tuaj yeem tiv thaiv peb ntev dua. Tshwj xeeb, peb tsuas yog yuav tsum tau:
- Khaws cia rau hauv lub sijhawm thaum tsis siv kom tsis txhob hnav lossis tshav ntuj ncaj qha.
- Cov phooj ywg uas tsav tsheb, thov tsis txhob tso koj lub looj tsom iav dub rau ntawm qhov chaw nruab nrab kom nthuav tawm rau lub hnub.
- Thaum tso looj tsom iav dub ib ntus, nco ntsoov taw tes rau ntawm lo ntsiab muag kom tsis txhob hnav.
- Siv lub hnab looj tsom iav los yog lub hnab ntim khoom, vim tias cov thawv ntim tshwj xeeb no muaj qhov muag sab hauv uas yuav tsis ua rau koj lub qhov muag puas.
- Tsis txhob muab koj cov looj tsom iav dub tso rau hauv koj lub hnab tshos, lossis muab pov rau hauv koj lub hnab ev ntawv thiab rub lawv tawm tsam lwm cov yawm sij, hnab nyiaj, xov tooj ntawm tes, thiab lwm yam, vim qhov no tuaj yeem ua rau cov iav tsom iav tsis zoo. Nws kuj tseem tuaj yeem tsoo tus ncej ncaj qha.
- Thaum ntxuav cov looj tsom iav dub, koj tuaj yeem siv cov tshuaj ntxuav tes, xab npum thiab lwm yam tshuaj ntxuav tes los ua npuas dej los ntxuav lub lo ntsiab muag. Tom qab yaug, siv daim ntaub ntxuav lo ntsiab muag kom qhuav, lossis siv daim ntawv ntub dej tshwj xeeb ncaj qha. Piv nrog rau "qhuav so", qhov no yooj yim dua. Tsis txhob khawb.
- Hnav koj lub looj tsom iav kom raug thiab tsis txhob muab tso rau saum koj lub taub hau, vim lawv tuaj yeem cuam tshuam los yog tawg yooj yim, thiab cov tuam tsev yuav tawg.
.
Tsuas yog khaws cov no hauv siab thaum xaiv looj tsom iav dub
Qhov tseeb, nws tsis yog qhov nyuaj rau xaiv cov looj tsom iav uas tsim nyog. Koj tsuas yog yuav tsum nrhiav cov looj tsom iav dub nrog lub logo "UV400" lossis "UV100%" hauv lub khw tsis tu ncua, ob lub logo no qhia tias cov looj tsom iav dub tuaj yeem ua tiav ze li 100% tiv thaiv ultraviolet rays. Nws yog txaus kom muaj kev tiv thaiv zoo.
Yuav xaiv cov xim li cas? Feem ntau hais lus, rau kev siv txhua hnub, peb tuaj yeem muab qhov tseem ceeb rau cov lo ntsiab muag xim av thiab grey, vim tias lawv tsis tshua muaj kev cuam tshuam rau cov xim ntawm cov khoom, nws yooj yim dua rau kev siv txhua hnub, tshwj xeeb tshaj yog kev tsav tsheb, thiab yuav tsis cuam tshuam rau tus neeg tsav tsheb saib lub teeb pom kev. Tsis tas li ntawd, cov phooj ywg uas tsav tsheb kuj tseem tuaj yeem xaiv cov looj tsom iav dub nrog cov lo ntsiab muag polarized kom txo qis qhov muag pom thiab tsav tsheb zoo.
Thaum xaiv cov looj tsom iav dub, muaj ib yam uas yooj yim saib, thiab qhov ntawd yog "zoo li". Nws yog ib qho yooj yim xav tias cov looj tsom iav dub nrog thaj tsam loj thiab qhov curvature uas haum rau lub ntsej muag zoo muaj lub hnub tiv thaiv zoo tshaj plaws.
Yog tias qhov loj ntawm cov looj tsom iav dub tsis tsim nyog, qhov curvature tsis haum peb lub ntsej muag, lossis cov lo ntsiab muag me dhau, txawm tias cov lo ntsiab muag muaj kev tiv thaiv UV txaus, lawv tseem yuav yooj yim xau lub teeb nyob txhua qhov chaw, zoo heev txo lub hnub tiv thaiv.
Peb feem ntau pom cov ntawv hais tias siv lub teeb ntsuas nyiaj hauv tuam txhab nyiaj + daim ntawv teev nyiaj tuaj yeem txiav txim siab seb cov looj tsom iav puas ntseeg tau lossis tsis yog. Vim tias looj tsom iav dub tuaj yeem tiv thaiv cov kab hluav taws xob ultraviolet, lub teeb pom kev nyiaj txiag tsis tuaj yeem teeb pom kev tiv thaiv cov khoom cuav los ntawm cov looj tsom iav dub.
Cov nqe lus no tau qhib rau cov lus nug vim hais tias nws muaj feem xyuam rau lub zog thiab lub zog ntawm lub teeb lub teeb pom kev. Ntau lub txiaj ntsig ntes teeb muaj lub zog qis heev thiab ruaj khov wavelengths. Qee cov tsom iav zoo tib yam tuaj yeem thaiv cov kab hluav taws xob ultraviolet tawm los ntawm cov teeb pom kev hauv txhab nyiaj, tiv thaiv cov ntawv pov thawj tiv thaiv cov cim cuav los ntawm teeb pom kev zoo. Yog li ntawd, nws muaj kev nyab xeeb dua los siv cov cuab yeej tshaj lij los txiav txim qhov muaj peev xwm tiv thaiv looj tsom iav. Rau peb cov neeg siv khoom zoo tib yam, nws yog qhov tseem ceeb tshaj plaws los nrhiav "UV400" thiab "UV100%".
Thaum kawg, kom xaus lus, cov looj tsom iav dub muaj lo lus "muag thiab deterioration", tab sis peb tsis tas yuav hloov lawv txhua ob xyoos.
Yog tias koj xav paub ntau ntxiv txog tsom iav zam tiam sis thiab kev sib tham hauv kev lag luam, thov mus saib peb lub vev xaib thiab tiv tauj peb txhua lub sijhawm.
Post lub sij hawm: Oct-09-2023