Ka lebaka la khanya e matla ea letsatsi hlabula, na e etsa hore u se ke ua khona ho bula mahlo?Batho ba bangata ba ka rata ho apara para e kholo ealikhalase tsa letsatsiha o kganna kapa o tswela kantle ho thibela kganya ya letsatsi.Empa, na u khethile likhalase tse nepahetseng tsa letsatsi?Haeba u khetha likhalase tsa letsatsi tse fosahetseng, li ke ke tsa sireletsa mahlo a hao, esita le ho “foufatsa mahlo a hao” ’me tsa baka likotsi tsa mebileng maemong a tebileng.Ho bonahala eka ke potso e bonolo ho nka likhalase tse nepahetseng, empa ho na le ho se utloisisane ho hongata.
Ka mor'a moo, ke rata ho hlahisa ho se utloisisane ho itseng ha u khetha likhalase tsa letsatsi:
Khopolo-taba ea 1: Ha 'mala o lefifi, ho molemo
Batho ba bangata ba e nka habobebe hore ha 'mala oa lense o le lefifi, ho na le tšireletso e ntle ea UV.Ha e le hantle, mosebetsi oalikhalase tsa letsatsiho sefa mahlaseli a ultraviolet ho amana feela le filimi ea ho roala, 'me' mala ha o lefifi ka hohle kamoo ho ka khonehang.Haholo-holo ho bakhanni ba sebaka se selelele, haeba likhalase tsa letsatsi li le lefifi haholo, mahlo a atisa ho khathala, hape ho kotsi le ho feta ho kena lithaneleng le libakeng tse ling tse nang le khanya ea tšohanyetso e lerootho e tsoang letsatsing le matla.
Khopolo-taba ea 2: Lilense tse nang le polarized ke tsona tse loketseng ka ho fetisisa
Bakhanni ba bangata ba rata ho aparalikhalase tsa polarized.Ka sebele, likhalase tse nang le polarized li ka fokotsa khanya e matla, tsa felisa mahlaseli, 'me tsa etsa hore moeli oa pono e be oa tlhaho le o bonolo.Ebile, likhalase tse nang le polarized li loketse ho ts'oasa lihlapi, ho thellelisa lehloeng le libakeng tse ling tse bonahatsang sebaka se seholo empa eseng bakeng sa liketsahalo tsohle.Mohlala, ka linako tse ling mokhanni o tlameha ho tobana le sebaka se lefifi joalo ka kotopo, athe lense ea polarized e bonolo ho etsa mahlo ka tšohanyetso lefifing le kotsi ho mokhanni.Ntle le moo, lense ea polarized e tla bebofatsa 'mala oa li-skrini tsa LCD le mabone a sephethe-phethe a LED.Ka hona, pele u khetha likhalase tsa letsatsi, hoa hlokahala ho nahana ka ketsahalo ea mantlha eo u tla ameha ka sunshades.Likhalase tsa letsatsi tse se nang polarized li ka ba tse loketseng haholoanyane bakeng sa hau.
Khopolo-taba ea 3: U se ke ua roala likhalase tsa myopia
Bakhanni ba bang ba myopic hanyenyane, 'me ha ho bothata ho khanna ntle le likhalase tsa myopic ka linako tse tloaelehileng.Empa hang ha o aparalikhalase tsa letsatsi, bothata bo tla: mahlo a hao a khathala haholoanyane, ’me pono ea hao e tla fokola, feela joalokaha pono ea hao e tla ameha ha u khanna bosiu.Ka hona, bakhanni ba nang le myopia e bonolo hangata ba khona ho khanna ntle le bothata.Haeba ba batla ho roala likhalase tsa letsatsi, ba tlameha ho ba le lilense tse nang le degree ea myopia.
Khopolo-taba ea 4: 'Mala oa likhalase o motle haholo
Bacha ba fesheneng ba tla ba le likhalase tsa letsatsi tsa mebala e sa tšoaneng.Ke ’nete hore li shebahala hantle, empa ha lia lokela ho sebelisoa ha u khanna.Ka mohlala, lilense tse pinki le tse pherese li tla fetola 'mala le ponahalo.Ha e le hantle, ho molemo ho sebelisa lilense tse bohlooho bakeng sa likhalase tsa letsatsi, hobane li ke ke tsa fetola mebala ea motheo ea mebala.E latelang ke botala bo lefifi.Lilense tse sootho le tse mosehla li ka ntlafatsa ho khanya 'me li loketse libaka tse nang le moholi le lerōle.
Ha u khanna nakong ea selemo, u lokela ho khetha e loketsenglikhalase tsa letsatsiho latela boemo ba hau ba 'nete ho thibela likotsi tsa ho khanna.
Nako ea poso: Jul-01-2022