Xa uhlengahlengiso lwamehlo omntu lubuthathaka ngenxa yobudala, kufuneka alungise umbono wakhe ngokwahlukileyo kumbono okude nokufuphi.Ngeli xesha, uhlala efuna ukunxiba iiperi ezimbini zeeglasi ngokwahlukeneyo, nto leyo engathandekiyo kakhulu.Ke ngoko, kuyafuneka ukuba usila amandla amabini ahlukeneyo okuphinda-phinda kwilensi enye ukuze abe ziilensi kwiindawo ezimbini.Iilensi ezinjalo zibizwa ngokuba zii-bifocal lens okanye ii-bifocal glasses.
Uhlobo
Uhlobo lokwahlula
Lolona hlobo lwakuqala nolulula lwelensi yebhayinotyhula.Umqambi wayo waziwa ngokubanzi njengosaziwayo waseMelika uFranklin.Iilensi ezimbini zeedigri ezahlukeneyo zisetyenziselwa ukwahlukana uhlobo lwesipili se-bifocal, ezisetyenziswa njengeendawo ezikude nezikufuphi zokubeka indawo esembindini.Lo mgaqo usisiseko usasetyenziswa kulo lonke uyilo lwezipili ezimbini.
Uhlobo lwe-Gluing
Gcoba ifilimu encinci kwifilimu ephambili.Intlaka yokuqala yayiyintlaka yomsedare yaseCanada, ekulula ukuyincamathelisa, kwaye inokudityaniswa nasemva kokuba irabha yonakaliswa ngoomatshini, ifuthe lobushushu kunye neekhemikhali.Uhlobo lwe-epoxy resin olusebenza ngcono emva kokuba unyango lwe-ultraviolet luye lwathatha indawo yokuqala.Isibuko esincanyathisiweyo se-bifocal senza ifom yoyilo kunye nobukhulu be-sublayer yahluke ngakumbi, kubandakanya i-sublayer edayiweyo kunye noyilo lolawulo lweprism.Ukuze wenze umda ungabonakali kwaye unzima ukufunyanwa, i-sub-slice ingenziwa isangqa, kunye neziko le-optical kunye ne-geometric center coincident.Isibuko se-waffle esisi-bifocal esikhethekileyo sisipili esincanyathiselwe esikhethekileyo.Umphetho unokwenziwa umncinci kakhulu kwaye unzima ukwahlula xa i-sub-piece icutshungulwa kumzimba othwala okwethutyana, ngaloo ndlela uphucula ukubonakala.
Uhlobo lwe-fusion
Kukudibanisa izinto ze-lens kunye nesalathisi esiphezulu se-refractive kwindawo ye-concave kwi-plate ephambili kwiqondo lokushisa eliphezulu, kwaye i-index refractive ye-plate ephambili iphantsi.Emva koko ugijime kumphezulu we-sub-piece ukwenza i-curvature ye-sub-piece surface ihambelane neyona nto iphambili.Akukho luvo lokucandwa kwemida.Ukufunda okungaphezulu kwe-A kuxhomekeke kumandla okuhlaziya i-F1 yobuso obuphambili bebala elikude lombono, i-Curvature FC ye-original concave arc kunye ne-fusion ratio.Umyinge wodibaniso lubudlelwane obusebenzayo phakathi kwesalathiso serefractive semathiriyeli yelensi yesigaba ezibini, apho i-n imele isalathiso sokuphinda siqhawuke seglasi engundoqo (idla ngokuba yiglasi yesithsaba) kwaye u-ns umele isalathiso sokuqhambuka sephepha elisezantsi (iglasi yelitye lenyengane) kunye ixabiso elikhulu, ngoko ke udibaniso lodibaniso k=(n-1) / (nn), ngoko ke A=(F1-FC) / k.Inokubonwa kule fomyula ingasentla ukuba ithiyori, ukutshintsha igophe langaphambili leplate ephambili, i-concave arc curvature kunye ne-sub-plate refractive index inokutshintsha idigri eyongezelelweyo ekufutshane, kodwa eneneni, ifumaneka ngokubanzi ngokutshintsha. isalathiso se-sub-plate refractive.Itheyibhile 8-2 ibonisa isalathiso esiphinda-phindayo sephepha elisezantsi leglasi yelitye eliqhelekileyo elisetyenziswa ehlabathini ukwenza izipili ezidityanisiweyo ezahlukeneyo.
Itheyibhile 8-2 isalathiso esizinyibilikisayo seepleyiti ezincinci ezahlukeneyo ezikufutshane-zongezelelweyo ezidityanisiweyo zezibuko zebifocal (iglasi yelitye)
Refractive index fusion ratio yedigri eyongezelelweyo ipleyiti encinci
+0.50 ~ 1.251.5888.0
+1.50 ~ 2.751.6544.0
+3.00~+4.001.7003.0
Ukusebenzisa indlela yokudibanisa, ii-sub-chips ezimilisekileyo ezikhethekileyo zingenziwa, ezifana ne-flat top sub-chips, i-arc sub-chips, i-rainbow sub-chips, njl. .
Iibhayinotyhulathi zeresin ziyi-binoculars ezidityanisiweyo ezenziwe ngendlela yokuphosa.I-Fusion bifocal mirrors zenziwe ngezinto zeglasi.Isibuko seglasi esidityanisiweyo se-bifocal sifuna itekhnoloji ephezulu yokusila.
Uhlobo lwe-E-umgca omnye ukukhanya kabini
Olu hlobo lwesibuko sokukhanya kabini sinendawo enkulu ekufutshane.Luhlobo lwesipili esingenamfanekiso sokutsibela kabini-esikhanyayo, esinokwenziwa ngeglasi okanye ngentlaka.Ngapha koko, isipili se-bifocal eluhlobo lwe-E sinokuthathwa njengenqanaba elingalunganga lokubona kude okongezelelekileyo kwisipili esikufuphi.Ubukhulu bomphetho wesiqingatha esiphezulu se-lens bukhulu kakhulu, ngoko ke ubukhulu becala eliphezulu kunye nezantsi kwi-lens bungafana ngendlela ye-prism thinning method.Ubungakanani beprism ethe nkqo esetyenzisiweyo ixhomekeke kukudibanisa okukufutshane, okungu-yA/40, apho u-y engumgama osuka kumgca wokwahlula ukuya kumphezulu wephepha, kwaye u-A ludibaniso lokufunda.Ekubeni i-attachment ekufutshane yamehlo amabini idla ngokulingana, inani elincinci le-binocular prism nalo liyafana.Emva kokuba i-prism iyancipha, ifilimu ye-refractive iya kudibaniswa okanye ikhutshwe ukuze isuse ukuchithwa kwangaphakathi.
Ixesha lokuposa: Mar-09-2023