Malensi ekuona anogadzirisa zvikanganiso zve refractive nekukotama (refracting) mwenje painopfuura nepalenzi. Huwandu hwekugona-kupeta kwechiedza (lens simba) hunodiwa kuti upe kuona kwakanaka hunotaridzwa pachiratidziro chakapihwa nachiremba wako wemaziso.
Refractive zvikanganiso uye lens masimba anodiwa kuagadzirisa anoyerwa mumayuniti anonzi dioptres (D). Kana usiri kuona zviri mberi, tsamba yako yekunyora lenzi inogona kuti -2.00 D. Kana uine myopia yakanyanya, inogona kuti -8.00 D.
Kana iwe uchiona kwenguva refu, unoda "plus" (+) lenzi, dzakakora pakati uye dzakatetepa kumucheto.
Magirazi enguva dzose kana malenzi epurasitiki ehuwandu hwakanyanya hwekusaona papfupi kana kuona kwenguva refu kunogona kuve kwakakora uye kurema.
Sezvineiwo, vagadziri vakagadzira akasiyana emhando nyowani "yepamusoro-index" epurasitiki lens zvinhu zvinokotamisa chiedza zvakanyanya.
Izvi zvinoreva kuti zvinhu zvishoma zvinogona kushandiswa mu-high-index lense kugadzirisa huwandu hwakafanana hwekukanganisa refractive, izvo zvinoita kuti high-index epurasitiki lenses ave matete uye akareruka kupfuura akajairwa girazi kana epurasitiki lenzi.
Zvakanakira high-index lenses
Mutete
Nekuda kwekugona kwavo kupeta chiedza zvakanaka, malenzi epamusoro-soro ekusaona zvipfupi ane mipendero mitete pane marenzi ane simba rakafanana remishonga inogadzirwa nemidziyo yepurasitiki yakajairika.
Lighter
Mipendero yakatetepa inoda zvishoma lens zvinhu, izvo zvinoderedza huremu hwese hwema lenzi. Malenzi akagadzirwa nepamusoro-indekisi epurasitiki akareruka kupfuura iwo malenzi akafanana akagadzirwa mupurasitiki akajairwa, saka anonyatso kugadzikana kupfeka.
Uye akawanda epamusoro-index lenzi anewo aspheric dhizaini, iyo inovapa slimmer, inoyevedza chimiro uye inoderedza kukwidziridzwa kutaridzika kunokonzerwa neakajairika lenzi mumirairo yakasimba yekuona kwenguva refu.
High-index lens sarudzo
High-indekisi epurasitiki lenses ave kuwanikwa mune dzakasiyana siyana refractive indices, kazhinji kubva 1.60 kusvika 1.74. Malenzi ane refractive index ye1.60 & 1.67 anogona kunge akatetepa nezvikamu makumi maviri kubva muzana pane zvemazuva ese epurasitiki lenzi, uye 1.71 kana kupfuura kazhinji anogona kunge akatetepa makumi mashanu muzana.
Zvakare, kazhinji kutaura, iyo yakakwira iyo index, ndiyo yakakwira mutengo wemalensi.
Chiratidzo chako chemucherechedzo chinotarisawo rudzi rwemhando yepamusoro-index zvinhu zvaungade kune yako lenzi. Iyo yepamusoro indekisi zvinhu zvinoshandiswa zvakanyanya kune yakasimba kwazvo mirairo.
Mazhinji emazuva ano ane mukurumbira lens dhizaini uye maficha - anosanganisira Dual Aspheric, Progressive, Bluecut Pro, Prescription tinted, uye nehunyanzvi Spin-coating photochromic lenses- anowanikwa mune yakakwira-index zvinhu. Kugamuchirwa kudzvanya mumapeji eduhttps://www.universeoptical.com/armor-revolution-product/kutarisa mamwe mashoko.