Litaba

Utloisisa bohlokoa balikhalase tsa letsatsibakeng sa tlhokomelo ea pono

Likhalase tsa letsatsie fetang feela setaele sa feshene kapa sesebedisoa sa setaele sa motho;ke sesebelisoa sa bohlokoa ho sireletsa mahlo a rōna liphellong tse kotsi tsa letsatsi le bohale.Tsoelo-pele moetlong oa rona oa ho rata lintho tse bonahalang e bile tenglikhalase tsa letsatsikhetho e tsebahalang bakeng sa ho matlafatsa botle le ho hlahisa setaele sa motho.Leha ho le joalo, mosebetsi o ka sehloohong oalikhalase tsa letsatsike ho sireletsa mahlo a rōna a bohlokoa tšenyong e sa bonahaleng e bakoang ke mahlaseli a ultraviolet (UV).Lingaka tsa mahlo li hatisa tlhokahalo ea tšebeliso ea kamehla ealikhalase tsa letsatsiho boloka pono e phetseng hantle, kaha mahlo a bonolo haholo ho monya mahlaseli ana a kotsi.Ke habohlokoa ho hlokomela hore tšenyo e bakiloeng ke mahlaseli a UV e ntse e eketseha 'me e ke ke ea etsolloalikhalase tsa letsatsintho eo motho e mong le e mong a lokelang ho ba le yona.

Tšenyo e eketsehang le e ke keng ea etsolloa ho tsoa ho mahlaseli a UV

Ho fapana le leseli le bonahalang, leseli la ultraviolet le ke ke la bonoa ka mahlo.Ka hona, motho a ke ke a lekanya boholo ba tšenyo e entsoeng ho fihlela e se e le morao haholo.Ke ka lebaka leo ho leng bohlokoa ho aparalikhalase tsa letsatsika nako tsohle.Ho na le litšobotsi tse peli tse kotsi tsa mahlaseli a UV tse hlokang tlhokomelo ea rona.Ntlha ea pele, tšenyo e bakoang ke mahlaseli a UV e bokellana ha nako e ntse e ea.Ho pepesehela tikoloho ena nako e telele ho ka etsa hore mahlo a tobane le mafu a mangata a mahlo, ho kopanyelletsa le ho senyeha ha cornea le retina, ho fifala ha lense, esita le lera la mahlo.Ho bokellana ha tšenyo ea mahlo ho amanang le UV ho boetse ho ama pono ea motho ka ho toba, ho etsa hore ho be thata le ho feta ho tsosolosa pono e tloaelehileng.Ea bobeli, tšenyo e bakiloeng ke mahlaseli ana e ke ke ea etsolloa, ho bolelang hore hang ha mathata a amanang le pono a hlaha, a ke ke a lokisoa ka ho feletseng.Ka mohlala, opereishene ea cataract hangata e kenyelletsa ho nkela lense ea intraocular sebaka, empa ha e etsolle tšenyo e bakoang ke ho pepesehela UV nako e telele.

melemo le litšobotsi tsa likhalase joalo ka lihlahisoa tse sireletsang mahlo

Molemo oa likhalase tsa letsatsi ke hore li khona ho thibela le ho sefa mahlaseli a kotsi a ultraviolet hore a se ke a fihla mahlong a rōna.Likhalase tsa letsatsi tsa boleng bo holimo, tse kang Refined Collection, li fana ka tšireletso e phahameng ka ho fetisisa ka theknoloji e tsoetseng pele ea lense.Ka ho sebelisa lilense tse khethehileng, likhalase tsena li thibela mahlaseli a kotsi a UV ho fihla ho 100%, ho netefatsa tlhokomelo e feletseng ea mahlo.Ho feta moo, likhalase tsa rona tsa letsatsi li fana ka likarolo tse ling tse kang polarized light.Tšobotsi ena e fokotsa khanya e tsoang libakeng tse khanyang joalo ka metsi kapa lintho tse benyang, e fana ka ho hlaka le matšeliso ponong ea hau.Ka ho khetha likhalase tsa mahlaseli tsa polarized, ha u matlafatse bophelo ba mahlo a hao feela, empa le phihlelo ea hau ea pono ka kakaretso.

Likhalase tsa letsatsi: motsoako o phethahetseng oa tšireletso ea mahlo le setaele

Lebenkeleng la rona, re lumela hore ts'ireletso ea mahlo ha ea lokela ho senya setaele kapa tatso ea motho.Re fana ka mefuta e mengata ea likhalase tsa letsatsi tse entsoeng ka hloko ho lumellana le likhetho tse fapaneng ha u ntse u sireletsa mahlo a hau.Pokello ea rona e kenyelletsa liforeimi tsa setaele, mebala e fapaneng ea lilense le meralo ea setaele e lumellanang habonolo le setaele sa hau se ikhethileng.Hore na o rata lilense tsa khale tsa sefofane, liforeimi tsa mahlo tsa katse tsa khale kapa meralo ea papali, re na le likhalase tse ntle bakeng sa hau.Re ikemiseditse ho kopanya tlhokomelo ya mahlo le setaele, ho netefatsa hore ha o hloke ho sekisetsa le tsona.U roetse likhalase tsa rona tsa letsatsi, u ka tsoa ka kholiseho u tseba hore pono ea hau le setaele sa hau se lumellana.

Apara likhalase tsa letsatsi bakeng sa tlhokomelo ea pono

Ho sireletsa mahlo a hao hore a se ke a senyeha ka nako e telele mahlaseling a UV, itloaetse ho roala likhalase tsa letsatsi.Joalo ka ha re etelletsa pele tlhokomelo ea letlalo ea kamehla, bohloeki ba meno le boikoetliso, ho kenyelletsa likhalase tsa letsatsi lits'ebetsong tsa rona tsa letsatsi le letsatsi ho bohlokoa ho boloka bophelo bo botle ba pono.Melemo le likarolo tsa likhalase tsa letsatsi li fetela ka nģ'ane ho karolo ea tsona ea ho ba sehlahisoa feela.Ho lula u roala likhalase tsa letsatsi ho ke ke ha sireletsa mahlo a hao feela tšenyo, empa hape ho thibela tšenyo e ke keng ea etsolloa.Ho sireletsa pono ea hau e lokela ho ba boitlamo ba bophelo bohle, 'me ho etsa likhalase tsa letsatsi e le karolo ea bohlokoa ea kemiso ea hau ea tlhokomelo ea mahlo ho ka tiisa bokamoso bo khanyang, bo hlakileng.

Qetellong, likhalase tsa letsatsi li na le melemo e 'meli ea ho sireletsa mahlo le ho fana ka monyetla oa ho hlalosa mokhoa oa hau oa botho.Ka lebaka la tšenyo e ntseng e eketseha le e ke keng ea etsolloa e bakiloeng ke mahlaseli a UV, tlhokomelo ea mahlo e tlameha ho etelletsoa pele 'me e etse hore likhalase tsa letsatsi e be karolo ea bohlokoa ea kemiso ea hau ea letsatsi le letsatsi.Tsetela ka likhalase tsa letsatsi tsa boleng bo holimo tse fanang ka tšireletso le setaele sa maemo a holimo hore u tle u natefeloe ke bophelo u tseba hore mahlo a hau a bolokehile.Etsa hore likhalase tsa hau e be molekane oa hau eo u mo tšepang ho u sireletsa le ho ntlafatsa pono ea hau ha u ntse u hlahloba lefatše ka boits'epo le boikhohomoso.