Iindaba zeshishini
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Isikhokelo sokugqibela sokuKhetha isakhelo esigqibeleleyo seOptical
Xa kuziwa kwiiglasi, iifreyimu ze-optical azidlali nje indima ebalulekileyo ekuphuculeni umbono, kodwa nasekuqaqambiseni ubuntu bakho befashoni. Ngeendlela ezininzi, iimilo, kunye nemathiriyeli ekhoyo, ukukhetha isakhelo sokukhanya esigqibeleleyo kunokuba ngumsebenzi onzima. Nokuba ufuna isibini esitsha ...Funda ngokugqithisileyo -
Iiglasi zelanga zisisincedisi esibalulekileyo
Iiglasi zelanga ziyinto ebalulekileyo kubantu abaninzi kwihlabathi liphela. Enoba ufuna ukukhuselwa kwimitha yelanga eyingozi okanye ufuna ukuphucula ingqiqo yakho yefashoni, iindondo zelanga zisisincedisi esinokukunika zombini. Kweli nqaku, siza kuphonononga imiba eyahlukeneyo yelanga ...Funda ngokugqithisileyo -
I-Myopia idinga izakhono eziyimfuneko zokufumana indlela yokucoca iiglasi ngaphandle kokulimaza i-lens
Ngokunyuka kweemveliso zedijithali, amehlo abantu aphantsi koxinzelelo ngakumbi nangakumbi. Kungakhathaliseki ukuba abantu abadala, abaneminyaka ephakathi, okanye abantwana, bonke banxiba iindondo ukuze banandiphe ukucaca okuziswa ziiglasi, kodwa sinxiba iindondo ixesha elide. Ewe, iilensi zeeglasi zakho ziya kugquma...Funda ngokugqithisileyo -
Indlela yokulungisa isakhelo seeglasi ezigwenxa, iiglasi zeMayya ziya kukufundisa
Indlela yokulungisa isakhelo seeglasi ezigoso? Ukuba isibuko sobuso beeglasi asisicaba, siya kubangela ukuba elinye icala libe kufutshane neliso kwaye elinye icala libe kude. Enyanisweni, ngokude nje iiglasi zigqwethiwe, indawo ye-optical center ye-lens ayiyi kuhambelana nomfundi, oya kuthi ...Funda ngokugqithisileyo -
Ulwazi olusisiseko lokufunda iiglasi kufuneka ukwazi
Iiglasi zokufunda luhlobo lweeglasi zamehlo, ezibonelela ngeendondo ze-myopia ezidla ngokusetyenziswa ngabantu abane-presbyopia, eye-convex lens. Iiglasi zokufunda zisetyenziselwa ukugcwalisa amehlo abantu abaphakathi kunye nabantu abadala. Njengeeglasi ze-myopia, banamanani amaninzi e-electronic optical index ...Funda ngokugqithisileyo -
Ngaba kufanelekile ukuba abantu abadala banxibe iifilimu eziqhubekayo?
Okokuqala, masiqonde ukuba yi-lens eqhubekayo, kwaye ukuhlelwa kweelensi zayo kunokuchazwa njengento yonke. Ukuba yahlulwe ukusuka kwindawo ekugxilwe kuyo, iilensi zinokwahlulwa zibe ziilensi zokujolisa enye, iilensi ze-bifocal, kunye neelensi ezininzi. Iilensi ezininzi eziqhubelekayo, nazo...Funda ngokugqithisileyo -
Ngaba kufuneka unxibe izibuko zelanga ebusika?
Iiglasi zelanga bezisoloko zisisisixhobo sefashoni yasehlotyeni kunye nokumila kweconcave engqondweni yomntu wonke. Kwaye ixesha elininzi sicinga ukuba iiglasi zelanga kufuneka zinxitywe kuphela ehlotyeni. Kodwa kufuneka sazi ukuba umsebenzi oyintloko wezibuko zelanga kukuthintela umonakalo wemitha ye-ultraviolet, kunye ne-ultrav ...Funda ngokugqithisileyo -
Ngaba ubunzulu belensi yeglasi kokukhona lungcono ukhuseleko lwe-UV?
Nokuba iiglasi zelanga zinokukhusela kwimitha ye-UV ayinanto yakwenza nomthunzi welensi, kodwa imiselwa ngumgangatho we-UV welensi. Umbala welensi emnyama kakhulu uya kuchaphazela ukubonakala, kwaye amehlo wonakaliswa ngokulula kukutsala nzima ukubona. Ukongeza, iindawo ezimnyama zinokwandisa umfundi, ...Funda ngokugqithisileyo -
Ithemba lophuhliso loshishino lweeglasi
Ngokuphuculwa kwemigangatho yokuphila yabantu kunye nokuphuculwa kweemfuno zokunakekelwa kwamehlo, imfuno yabantu yokuhlobisa iiglasi kunye nokukhuselwa kwamehlo iyaqhubeka ikhula, kwaye imfuno yokuthengwa kwemveliso yeeglasi ezahlukeneyo iyaqhubeka ikhula. Imfuno yehlabathi yolungiso lwamehlo...Funda ngokugqithisileyo -
Kutheni iilensi zokuthintela ukukhanya zijika zibe tyheli?
Iilensi zabanye abantu zikhangeleka zibhlowu, ezinye zimfusa, kwaye ezinye ziluhlaza. Kwaye iiglasi ezibhlowu zokuvala ukukhanya ezicetyiswayo kum zityheli. Ke kutheni iilensi zokuthintela ukukhanya zijika zibe tyheli? Ukuthetha ngokubona, ukukhanya okumhlophe kunemibala esixhenxe yokukhanya, yonke into eyimfuneko. Isibane esiluhlaza ...Funda ngokugqithisileyo -
Iindlela ezilishumi elinesibini ezisebenzayo zokukhusela amehlo
Ngokukhawuleza kwesigqi sobomi babantu kunye nokuthandwa kwezikrini ezinjengeekhompyuter kunye neefowuni eziphathwayo, ukukhuselwa kwamehlo kuya kuba kubaluleke ngakumbi. Okwangoku, onke amaqela eminyaka aneengxaki zamehlo ezingaphezulu okanye ngaphantsi. Amehlo omileyo, ukukrazula, i-myopia, iglaucoma kunye nezinye iimpawu zamehlo ...Funda ngokugqithisileyo -
Indlela yokukhuthaza ukuthengiswa kweendondo zelanga ezidibeneyo?
01 Iimveliso ezinxulumeneyo: Xa umthengi ekhetha imveliso ethile, sinokukhuthaza ukuthengisa ngokuthelekisa iimpahla ezinxulumeneyo kunye nezixhobo. Yintoni ezisa abathengi yimpembelelo yengqondo ye-icing kwikhekhe. Abathengi nabo baya kukuvuyela ukuyamkela. Umzekelo, vumela abathengi abanxibayo...Funda ngokugqithisileyo