Uma kuziwa ekukhetheni amalensi afanele ezingilazi zethu, sivamise ukuzwa amagama anjengokuthi "refractive index." Inkomba ye-refractive yelensi iyisici esibalulekile ekunqumeni ukusebenza kwayo nokunethezeka kwayo. Kulesi sihloko, sizongena emhlabeni wenkomba yelensi futhi sikhanyisele izinzuzo zokukhetha amalensi ngenkomba yokuphinda ye-refractive engu-1.56.
I-refraction ukugoba kokukhanya njengoba kudlula endaweni ephakathi nendawo, njengelensi. Inkomba ye-Refractive iyisilinganiso sokuthi into ethile ingagoba kahle kangakanani ukukhanya. Inkomba ephezulu ye-refractive isho ukugoba okukhulu kokukhanya. Uma kukhulunywa ngamalensi engilazi yamehlo, ama-refractive indexes aphezulu anenzuzo ngoba avumela amalensi azacile, alula.
Inkomba ye-refractive ye-1.56 ibhekwa njengenketho enhle kakhulu yezinto ezibonakalayo zamalensi ngenxa yezinzuzo zayo eziningi. Okokuqala, ilensi enenkomba ye-refractive engu-1.56 incane kakhulu futhi ilula kune-lens ene-refractive index ephansi. Lokhu kuwenza akhululeke kakhudlwana ukuwagqoka, ikakhulukazi kubantu abanamandla aphakeme kadokotela abadinga amalensi aminyene. Valelisa kumalensi asindayo, awugqinsi angabangela ukungakhululeki ekhaleni lakho!
Okwesibili, ukukhetha amalensi anenkomba ye-refractive engu-1.56 nakho kungathuthukisa ukukhanga kobuhle. Amalensi azacile athandeka kakhulu ngobuhle ngoba anciphisa ukuhlanekezela kweso ngemuva kwelensi. Kungakhathaliseki ukuthi unencwadi kadokotela ephezulu noma ephansi, amalensi azacile anikeza ukubukeka kwemvelo okwengeziwe, akhanyisa amehlo akho ngaphandle kokubangela ukuphazamiseka kokubuka okungadingekile.
Enye inzuzo ebalulekile yamalensi ezinkomba angu-1.56 yikhwalithi yawo yokubona ephezulu. Lawa ma-lens akhiqizwa kusetshenziswa ubuchwepheshe obuphambili ukuze kuqinisekiswe ukucaca nokubona okuphakeme. Inkomba ephezulu ye-refractive inciphisa ukuphuma kwe-chromatic, inciphise ukuhlakazeka kanye nokuhlanekezela ukubona okucacile.
Ukwengeza, amalensi anenkomba ye-refractive engu-1.56 amelana nokuklwebheka futhi anikeza ukuqina okuhle kakhulu. Izinto zamalensi zenzelwe ukumelana nokuguga kwansuku zonke, okunciphisa isidingo sokushintshwa njalo. Lokhu kusho ukuthi izibuko ziqinile, ziyonga futhi zinikeza ukuthula kwengqondo.
Kafushane, inkomba ye-refractive ye-lens iwukucatshangelwa okubalulekile lapho ukhetha izibuko. Amalensi anenkomba ye-refractive engu-1.56 anikeza izinzuzo eziningi, okuhlanganisa amalensi azacile, alula, ubuhle obuthuthukisiwe, ikhwalithi yokubona ephakeme nokuqina okuthuthukisiwe. Ngokukhetha amalensi ngale nkomba ye-refractive, ungajabulela ukunethezeka okuphelele, ukucaca okubonakalayo, kanye nesitayela kuzingubo zakho zamehlo zansuku zonke. Ungayekethisi embonweni wakho; khetha ama-index lens angu-1.56 ukuze uthole umuzwa ongenakuqhathaniswa wezingubo zamehlo.
Isikhathi sokuthumela: Nov-01-2023