Kuziva kwe lens
Kutanga, lens optics
Kugadzirisa lenses: chinangwa chikuru chekushandiswa kwemagirazi kugadzirisa kukanganisa kunokanganisa kweziso remunhu uye kuwedzera maonero.Magirazi ane basa rakadaro anonzi "magirazi ekugadzirisa".
Magirazi ekugadzirisa anowanzo lenzi imwe chete, yakagadzirwa negirazi kana plastiki yakajeka.Iyo yakapfava imubatanidzwa wemamativi maviri ane mamwe akajeka uye mayunifomu refractive stroma ane denser kupfuura mweya, pamwe chete anonzi lenzi.Chiedza chakapararira chechiedza chinobuda panzvimbo pane chinhu chemuchadenga chinokotamiswa nelenzi kuita poindi yemufananidzo uye mapoinzi mazhinji emifananidzo anobatanidzwa kuita mufananidzo.
Lenzi:
Zvinoenderana nehunhu hwe lens, inogona kukamurwa kuita yakanaka lens kana negative lens.
1. Plus Lenzi
Iyo inozivikanwawo se convex lens, chiedza convergence, ine "+".
(2) Kubvisa Lenzi
Iyo inozivikanwawo se concave lens, chiedza chine dispersive effect, inoratidzwa ne "-".
Pane dzidziso mbiri dzakasiyana dzekuti nei magirazi ekugadzirisa achigona kugadzirisa kukanganisa kweziso remunhu:
1. Mushure mokunge ziso refractive aberration rinosanganiswa nekugadzirisa lens, kusanganiswa kwerefractive kusanganiswa kunoumbwa.Iyi yakasanganiswa refractive musanganiswa ine diopter nyowani, iyo inogona kuita iri kure chinhu chifananidzo pane photoreceptor layer ye retina yeziso.
2. Mumaziso anoona kure, matanda anofanira kuunganidzwa asati asangana nemaziso evanhu;Mumaziso emyopic, matanda anofanira kutsauka asati asangana neziso remunhu.Iyo diopter yakakodzera yeorthotic magirazi inoshandiswa kushandura kusiyana kwedanda rinosvika paziso.
Izwi rinowanzoreva spherical lens
Curvature: Curvature of a sphere.
ø Radius ye curvature: radius ye curvature ye spherical arc.Iyo ipfupi radius ye curvature, iyo yakakura kukombama kwe spherical arc.
ø Optical Center: Kana mwaranzi yemwenje ichitungamirwa panguva ino, hapana kumonyoroka uye kutendeuka kunoitika.
Iwo anoenderana mwenje matanda anochinjika kusvika padanho mushure mekupfuura nepakati pe lens, kana reverse yekuwedzera mutsara inochinjika kune imwe nzvimbo, iyo inonzi Focus.
Refraction yemagirazi
Muna 1899, Gullstrand akaronga kutora kudzokororwa kwehurefu hwekutarisa sechikamu chesimba refraction re lens, inonzi "Dioptre" kana "D" (inozivikanwawo sefocal degree).
D=1/f
Iko, f ndiko kureba kwelenzi mumamita;D inomirira diopta.
Semuyenzaniso: kureba kwemamita maviri, D=1/2=0.50D
Hurefu hwepakati i0.25 m, D=1/0.25=4.00D
Spherical diopta
Fomula: F = N '- (N)/R
R ndiyo radius ye curvature yebhora mumamita.N 'uye N ndiwo maratidziro erefractive erefractive media kumativi ese esphere.Yegirazi rekorona, apo R=0.25 m,
F= (1.523-1.00) /0.25=2.092D
Lenzi yeziso irenzi inoumbwa nemativi maviri, ane madhipisi akaenzana nealgebraic sum ye spherical diopters emberi nekumashure.
D=F1+F2= (n1-n) /R1+ (N-n1) /R2= (N1-1) (1/R1-1/R2)
Naizvozvo, iyo refraction ye lens inoenderana neiyo refractive index ye lens zvinhu uye radius ye curvature yekumberi uye kumashure kweiyo lens.Iyo radius ye curvature yepamberi uye kumashure kweiyo lens yakafanana, uye iyo refractive index yakakwirira, iyo yakakwana kukosha kweiyo lens diopta yakakwirira.Pane zvinopesana, iyo lenzi ine diopta imwechete ine yakakura refractive index uye diki radius musiyano pakati pemberi neshure.
Chechipiri, rudzi rwe lens
Division (luminosity) ne refractive properties
Flat mirror: flat mirror, hapana girazi;
Spherical mirror: spherical luminosity;
Cylindrical mirror: astigmatism;
3. Kushandura nzira yechiedza (kugadzirisa zvimwe zvirwere zvemaziso).
Maererano nemhando yekutarisa
Focus-isina lenzi: flat, prism;
Single focus lens: myopia, farsightedness lens;
Multifocal lens: dual focal lens kana inofambira mberi lens
Maererano nemaitiro anoshanda
Kugadziriswa kwekuona
Refractive bad
dysregulation
Amblyopia mirror
kudzivirira
Kudzivirirwa pachiedza chinokuvadza;
Dzora chiedza chinooneka (Magirazi ezuva)
Dziviriro kubva kune zvinokuvadza zvinhu (magirazi ekudzivirira)
Maererano nemashoko ezvinyorwa
Zvinhu zvakasikwa
Girazi zvinhu
Plastiki zvinhu
Chechitatu, kugadzirwa kwezvinhu lens
Zvinhu zvakasikwa
Crystal lens: Chinhu chikuru chiri silica.Yakakamurwa kuita isina ruvara uye tawny marudzi maviri.
Zvakanakira: zvakaoma, hazvisi nyore kupfeka;Haisi nyore kunyorova (mhute haisi nyore kuchengetedza pamusoro payo);Iyo coefficient yekuwedzera kwekushisa idiki.
Zvakaipa: uv ine yakasarudzika pachena, nyore kukonzera kuona kuneta;Density haina yunifomu, nyore kuve netsvina, zvichikonzera birefringence;Inodhura.
girazi
1. Nhoroondo:
Corona girazi rinowanzo shandiswa, uye chinhu chikuru chiri silica.Kufambisa kwechiedza chinooneka ndeye 80% -91.6% uye refractive index ndeye 1.512-1.53.Nekudaro, kana paine yakakwira refractive abnormality, lead girazi ine yakakwira refractive index ye1.6-1.9 inoshandiswa.
2, optical maitiro:
(1) Refractive index: n=1.523, 1.702, zvichingodaro
(2) dispersion: nekuti kune kwakasiyana refractions kune akasiyana wavelengths echiedza
(3) Kuratidzira kwechiedza: iyo yakakwirira iyo refractive index, iyo yakakura kuratidza
(4) kunyura: kana chiedza chichipfuura nepakati pegirazi, kusimba kwaro kunoderera nekuwedzera kwekukora.
(5) Birefringence: isotropy inowanzodiwa
(6) Fringe degree: nekuda kwekusaenzana kwemakemikari kuumbwa mukati megirazi, iyo refractive index pamupendero yakasiyana nemuviri mukuru wegirazi, inokanganisa kunaka kwekufungidzira.
3. Mhando dzegirazi lenzi:
(1) Mahwendefa eToric
Iyo inozivikanwawo sewhite plate, white plate, optical white plate
Basic ingredients: Sodium titanium silicate
Zvimiro: isina ruvara yakajeka, tsanangudzo yakakwirira;Inogona kutora ultraviolet rays pazasi 330A, uye kuwedzera CeO2 uye TiO2 kune chena piritsi kudzivirira ultraviolet mwaranzi pazasi 346A, iyo inonzi UV chena piritsi.Kufambisa kwechiedza chinooneka ndeye 91-92%, uye refractive index ndeye 1.523.
(2) Croxus piritsi
William wekuEngland muna 1914. Yakatangwa naCroxus.
Hunhu: chiedza transmittance 87%
Maviri-mavara maitiro: mwenje webhuruu pasi pezuva, saka inozivikanwawo sebhuruu.Asi murambi re incandescent chiedza chitsvuku (chine neodymium metal element) chinogona kutora 340A pasi pe ultraviolet, chikamu che infrared uye 580A yero inooneka chiedza;Iko zvino haichawanzoshandiswa
(3) Mahwendefa eCroseto
CeO2 uye MnO2 inowedzerwa mumidziyo yewhite base lens kuti ivandudze ultraviolet absorption kugona.Rudzi urwu rwelenzi runodaidzwawo kuti tsvuku tsvuku nekuti inoratidza mwenje mutsvuku pasi pezuva uye mwenje we incandescent.
Zvimiro: inogona kutora ultraviolet rays pazasi 350A;Iyo transmittance iri pamusoro pe88%;
(4) firimu rakanyanya-mutete
Kuwedzera TiO2 uye PbO kune yakasvibira zvinhu kunowedzera iyo refractive index.Refractive index ndeye 1.70,
Zvimiro: inenge 1/3 yakaonda kupfuura yakajairika chena kana tsvuku piritsi ine diopter yakafanana, inokodzera yakakwira myopia, kutaridzika kwakanaka;Abbe coefficient yakaderera, ruvara aberration yakakura, nyore kukonzera peripheral kuona kuderedzwa, kupeta mutsara, ruvara;High surface reflectivity.
(5) 1.60 girazi lenzi
Zvimiro: Refractive index i1.60, yakatetepa kupfuura yakajairika girazi lens (1.523), uye yakatetepa kupfuura Ultra-yakatetepa lens (1.70) ine chikamu chidiki, saka yakareruka, yakakodzera chaizvo kune vepakati madhigirii anopfeka, vamwe vagadziri vanoidana kuti Ultra-light. uye Ultra-yakaonda lens.
Plastiki lenzi
Yekutanga thermoplastic lens yakagadzirwa muna 1940 (Acrylic)
Muna 1942, Pittsburgh plate Glass Company, USA, yakagadzira CR-39 material, (C inomirira Columbia Space Agency, R inomirira Resin Resin) ichigadzira zvinhu zveNASA space Shuttle.
Muna 1954, Essilor akagadzira cr-39 solar lenses
Muna 1956, kambani yeEssilor muFrance yakabudirira kuyedza-yakagadzira lenzi yemaziso neCR-39.
Kubva ipapo, resin lenses ave achishandiswa zvakanyanya munyika.Muna 1994, huwandu hwekutengesa kwepasi rose hwakasvika 30% yehuwandu hwema lens.
Plastiki zvinhu lenses:
1, polymethyl methacrylate (acrylic sheet, ACRYLICLENS)]
Zvimiro: refractive index 1.499;Chaiyo giravhiti 1.19;Pakutanga yakashandiswa kune yakaoma kuonana lenses;Kuomarara hakuna kunaka, kumusoro kuri nyore kukwenya;Iye zvino inoshandiswa kune magirazi akagadzirira, akadai semagirazi ekuverenga akagadzirira.
Zvakanakira: Yakareruka kupfuura magirazi lenzi.
Kukanganisa: kuoma kwepamusoro segirazi lens;Iyo optical properties yakaderera kune magirazi lenses.
2, resin sheet (mumiririri mukuru ndeye CR-39)
Hunhu: zita remakemikari ndiro propylene diethylene glycol carbonate, yakaoma uye yakajeka zvinhu;Refractive index ndeye 1.499;Transmittance 92%;Thermal kugadzikana: hapana deformation pazasi 150 ℃;Mvura yakanaka uye kusagadzikana kwekuora (kunze kweasidhi yakasimba), isinganyunguriki mune zvakajairika organic solvents.
Zvakanakira: giravhiti chaiyo ye1.32, hafu yegirazi, chiedza;Impact kuramba, isingaputsike, yakasimba pfungwa yekuchengeteka (inoenderana neFDA zviyero);Kusununguka kupfeka;Yakanakira kugadzirisa, kushandiswa kwakakura (kusanganisira kushandiswa kwehafu furemu, isina furemu furemu);Akapfuma chigadzirwa akateedzana (chiedza chimwe chete, kaviri mwenje, yakawanda-yakatarisana, cataract, shanduko yemavara, nezvimwewo);Uv absorption yayo inokwira zviri nyore kupfuura iyo yegirazi lens;Inogona kuiswa mumarudzi akasiyana-siyana;
Thermal conductivity yakaderera, uye "mhute yemvura" inokonzerwa nemhute yemvura iri nani pane magirazi egirazi.
Zvakaipa: kusapfeka kusakara kwe lens, nyore kukwenya;Iine yakaderera refractive index, iyo lens ndeye 1.2-1.3 nguva yakakura kupfuura girazi regirazi.
Development:
(1) Kukunda kusakara kwechinhu, pakati pemakore ekuma1980, tekinoroji yekuomesa lenzi yakabudirira;General resin lens, kuoma kwechiso kuoma kwe2-3h, mushure mekuoma kurapwa, kuoma kusvika ku4-5h, ikozvino, makambani akawanda akatanga kuoma kusvika ku6-7h super hard resin lens.(2) Kuti uderedze ukobvu hwelenzi, mashiti eresin ane akasiyana refractive indexes akagadzirwa zvinobudirira
(3) Kugadziriswa kwemhute isina mvura: kupfekedza dhizaini yefirimu yakaoma, inonamira mamorekuru anonamira, anokonzeresa kunyudza mamorekuru, kuomarara kwemamorekuru.Kana hunyoro hwenzvimbo yakadzikira pane hwelenzi, membrane inoburitsa hunyoro.Kana hunyoro hwezvakatipoteredza huchikwira kudarika hwelenzi, membrane inotora mvura.Kana hunyoro hwepakati hwakakwira zvakanyanya kupfuura hunyoro hwelenzi, mamorekuru anonamira emwando anoshandura mvura yakawanda kuita firimu remvura.
3. Polycarbonate (PC tablet) inonziwo space lens mumusika.
Zvimiro: refractive index 1.586;Chiedza chinorema;Kunyanya akakodzera frameless mafuremu.
Zvakanakira: Kuramba kwakasimba kwemhedzisiro;Yakanyanya kukanganisa-inodzivirira kupfuura resin lenzi.
Special lenzi
Photochromic firimu
Zvimiro: sirivheri halide particles inowedzerwa kune yakasvibira yelens.Pasi pekuita kwemwaranzi yeultraviolet muchiedza chezuva, sirivheri halide inoora kuita halogen ions uye sirivheri ions, nokudaro ichichinja ruvara.Zvinoenderana nekusimba kwechiedza che ultraviolet muchiedza chezuva, dhigirii rekudzikira rakasiyanawo;Kana iyo uv yanyangarika, lenzi inochinja ichidzokera kune yayo yekutanga ruvara.
Zvakanakira: Inogadzirisa zvikanganiso zve refractive kune varwere uye kaviri semagirazi ezuva kunze.
Inogona kugadzirisa chiedza muziso chero nguva kuchengetedza maonero akakodzera;Pasinei nekushanduka kwayo, inogara inotora ultraviolet chiedza zvakanaka;
Zvakaipa: gobvu lenzi, kazhinji 1.523 girazi;Kana dhigirii yakakwira, ruvara haruna yunifomu (yakareruka pakati).Mushure menguva yakareba lens nguva, iyo discoloration mhedzisiro uye discoloration kumhanya inodzika;Ruvara rwepepa rimwe chete haruenderani
Zvikonzero zvekuchinja ruvara
1, mwenje sosi mhando: ultraviolet pfupi wavelength mwenje irradiation, kukurumidza kuchinja kweruvara, yakakura kusungwa;Ultraviolet kureba wavelength mwenje irradiation, inononoka kushanduka kwemavara, diki concentration.
2. Kusimba kwechiedza: Kurebesa kwechiedza, ndiko kukurumidza kushanduka kweruvara uye kunowedzera kudzikamisa (nzvimbo nechando)
3, tembiricha: kukwirisa tembiricha, kukurumidza kushanduka kweruvara, kunowedzera kuwanda.
4, ukobvu hwelenzi: iyo yakakora iyo lenzi, iyo yakadzika iyo discoloration concentration (hapana kukanganisa pakumhanya)
Mazano ekutengesa mahwendefa ephotochromic
1. Paunenge uchishandura pepa rimwe chete, ruvara runowanzove rusingawirirani.Zvinokurudzirwa kuti vatengi vashandure zvidimbu zviviri panguva imwe chete.
2, nekuda kwekunonoka kupera, kazhinji mukati nekunze kwevatengi vemukati, hazvikurudzirwe (vadzidzi)
3. Nekuda kwekusiyana kwelens ukobvu uye discoloration concentration, zvinokurudzirwa kusaenderana kana diopter musiyano pakati pemeso maviri emutengi inopfuura 2.00d.
4, yakakwira myopia inonzwa yakasviba, imwe mupendero uye yepakati ruvara musiyano, kwete yakanaka.
5, kuverenga magirazi pakati pemavara maitiro akadzikira, kwete nekuchinja kwemavara lens.
6, mutsauko uripo pakati pemalenzi epamba neanotengeswa kunze kwenyika: epamba pane anounzwa kunze lenzi anononoka ruvara, anononoka kupera, yakadzika ruvara, kunze kunze kwakapfava ruvara.
Anti-radiation lens:
Mune lens zvinhu kuwedzera zvakakosha zvinhu kana yakakosha anti-reflective firimu, ichivharira nemwaranzi mwenje kuti ubvise kuneta kwemaziso.
Aspherical lenses:
Ndege yekutenderera (yakadai separabola) ine chikamu chimwechete chisina denderedzwa pane ese mameridians.Maonero emupendero haana kukanganisa uye 1/3 yakaonda kupfuura lenzi akajairwa (prism itete).
Polarizing lens:
Lenzi ine chiedza chinozunguzika chete munzira imwe inonzi polarizing lens.
Chinangwa chekushandisa polarizing lenzi: kuvhara kupenya kwechiedza chinoratidzwa panzvimbo yakati sandara.
Kungwarira pakushandisa:
(1) Durability haina kunaka, kwenguva yakareba kusangana nemvura, iyo firimu iri nyore kudonha.
(2) paunenge uchiisa girazi regirazi, kana paine kushushikana kwemukati, zvinokanganisa maitiro ayo polarization.
Kaviri chiedza chidimbu
Zvimiro: kune maviri anotarisisa mapoinzi pane imwe lenzi, uye diki lenzi rakaiswa pane yakajairika lens;Inoshandiswa kune varwere vane presbyopia kuona kure uye pedyo nekuchinjana;Kumusoro ndiko kupenya kana ukatarisa kure (dzimwe nguva yakati sandara), uye chiedza chepasi ndicho chiedza kana uchiverenga;Kukosha kwechinhambwe kunonzi mwenje wepamusoro, kukosha kwepedyo kunonzi mwenje wakaderera, uye mutsauko pakati pechiedza chepamusoro nechepazasi ndiADD (rakawedzera mwenje).
Zvakanakira: varwere ve presbyopia havadi kutsiva magirazi pavanoona pedyo nekure.
Zvakaipa: ona kure uye ona pedyo nekutendeuka paunenge uchisvetuka chiitiko (prism effect);Zviri pachena kuti yakasiyana nemalenzi akajairwa pakuonekwa.Munda wekuona idiki.
Zvinoenderana nechimiro chechikamu chechiedza pasi peiyo bifocal lens, inogona kukamurwa kuita:
Kupenya kwechiedza
Zvimiro: yakakura yekuona munda pasi pechiedza, diki mufananidzo kusvetuka chiitiko, diki ruvara aberration, hombe yemupendero ukobvu, kunaka kunobata, huremu hukuru.
Flat double light
Dome kaviri Chiedza (chisingaonekwe kaviri mwenje)
Hunhu: muganhu mutsara hausi pachena;Ukobvu hwemupendero hauwedzere nekuwedzera kwedhigirii rekushandisa-pedyo;Asi chiitiko chekusvetuka kwemufananidzo chiri pachena
Progressive multifocus lenses
Zvimiro: Mapoinzi akawanda akatarisana pane imwechete lenzi;Chiyero chebhendi inofambira mberi iri pakati pe lens inoshandura poindi nepoint kubva kumusoro kusvika pasi.
Zvakanakira: iyo lens yakafanana inogona kuona kure, yepakati uye iri pedyo kure;Iyo lens haina miganhu iri pachena, saka hazvisi nyore kuti zvionekwe.Kubva kudivi rakamira repakati pemeso haunzwe kusvetuka chiitiko.
Zvakaipa: Mutengo wepamusoro;Muedzo wakaoma;Kune nzvimbo dzemapofu kumativi ose maviri e lens;Yakakora lens, kazhinji 1.50 resin zvinhu (nyowani 1.60)
Kuenzanisa kwehunhu pakati pebifocal lens uye asymptotic multi-focus lens
Chiedza chechipiri:
(1) Pane misiyano iri pachena pakati penzvimbo dzakasiyana.Chitarisiko chacho hachina kunaka, zvichipa vanhu pfungwa yokuti mupfeki wacho akwegura
(2) chinhambwe chepakati chakapusa, senge: kutamba mahjong, nezvimwe.
(3) Nekuda kwekuvapo kwenzvimbo mbiri, zvichikonzera zvipingamupinyi zvinoonekwa: mufananidzo wakadzedzereka kana kusvetuka, zvekuti mushandisi anonzwa kutsika pasina chinhu, kusavimba kufamba pamasitepisi kana pakati pemigwagwa.
(4) Iko kushandiswa nekusimudzira tarisiro yezvigadzirwa zvishoma.
Matanho:
(1) Kubva kure kusvika pedyo nemutsara wekuona usingapindiki, chinhambwe chepakati chinova pachena.
(2) Chitarisiko chakanaka, pasina nguva inooneka.
(3) Svetuka usina mufananidzo, famba uine chivimbo pamasitepisi uye pakati pemigwagwa.
(4) Zvose magadzirirwo uye zvinhu zviri kushanduka.
(5) yakatetepa kupfuura imwechete lenzi.
(6) Bvisa kuneta kwemaziso uye uvandudze hutano hwekuona.
Multi-focus lenses akakodzera zvinhu
(1) Presbyopia, kunyanya presbyopia yekutanga.
(2) Vaya vasingagutsikani nekupfeka magirazi maviri (kuona kure nekuona pedyo).
(3) Avo vasingagutsikane nekupfeka mabifocal echivanhu.
(4) Vachiri kuyaruka myopia varwere.
Nehunyanzvi:
Inokodzera: anogara achichinja maziso, mapurofesa (lecturing), vatariri (musangano), varidzi vezvitoro, vatambi vemakadhi.
Zvisingafadzi: chiremba wemazino, magetsi kana emagetsi ekugadzirisa vashandi (kazhinji anofanirwa kuvhara strabismus kana kutarisa kumusoro), nguva yekushanda yekuvhara yakarebesa, kana iwe uchida kugara uchimhanyisa musoro, ungave uchida kuswedera pedyo nekuona paunotarisa kumusoro, sekutarisa tafura kana sherufu pamadziro (mutyairi wendege nevashandi vemagetsi emvura, vashandi vezviridzwa zvakakura), vangave kana kusatarisa pasi kune chiono chiri kure (vashandi vekuvaka, nezvimwewo)
Physiologically:
Inokodzera: chinzvimbo cheziso uye convergence munhu akajairwa, magirazi maviri dhigirii musiyano mudiki munhu, myopia magirazi mhuri
Zvisingafadzi: strabismus kana yakavanzika strabismus, eyelid hypertrophic inodzivisa mutsara wekuona, yakakwirira astigmatism, kupenya kwepamusoro uye ADD yakakwirira yevanhu.
Nezera:
Inokodzera: varwere vekutanga presbyopia vangangoita makore makumi mana (zviri nyore kuchinjika nekuda kwedhigirii yakaderera yeADD)
Hazvina kunaka: Parizvino, iyo ADD yemutambo wekutanga muChina yakakwira.Kana iyo ADD ikadarika 2.5d, ingave mamiriro emuviri akanaka kana kwete anofanira kutariswa.
Kubva munhoroondo yekupfeka magirazi:
Inokodzera: vakambopfeka bifocals, myopic presbyopia (myopic progressive multi-focus lenses ndiwo ari nyore kuchinjika)
Zvisina kukodzera: iyo yepakutanga haina kupfeka astigmatism lens, ikozvino astigmatism dhigirii yakakwirira kana ine nhoroondo yekupfeka lens asi iyo astigmatism yakanyanya kukwirira (kazhinji kupfuura 2.00d);Anisometropia;
Nzira yekutsanangura mirairo yekushandisa kune vaenzi
(1) Sungisa iyo lens dhigirii kugovera uye aberration kugovera
(2) Kana mutengi akaisa pameso, tungamira mutengi kuti awane yakanakisa nzvimbo yekuona nekufambisa chinzvimbo chemusoro (fambisa maziso kumusoro uye pasi, fambisa musoro kuruboshwe uye kurudyi)
(3) kazhinji 3-14 mazuva ekugadzirisa nguva, kuitira kuti uropi hugadzire reflex yakagadziriswa, zvishoma nezvishoma inogadzirisa (kuwedzera dhigirii, nguva yekugadzirisa yakareba).
Zviratidzo zvematambudziko ane progressive lens
Nzvimbo yekuverenga idiki zvakanyanya
Kusaona zvakanaka
Chidzungu, kunzwa kusununguka, kunzwa kudzungaira, kunzwa kudedera
Kusaona kure kure uye zvinhu zvisina kujeka
Tendeuka kana kurereka musoro wako kuti uone paunenge uchiverenga
Zvinogoneka zvinokonzeresa matambudziko neinofambira mberi lenzi
Chinhambwe chisina kururama pakati peziso rimwe chete
Kureba kwelenzi hakuna kunaka
Diopter isiriyo
Kusarudzwa kwefuremu nekupfeka zvisiri izvo
Shanduko mu base arc (kazhinji kupfava)
Raira mutengi kuti ashandise lens inofambira mberi
(1) Kushandisa nzvimbo iri kure
"Ndapota tarisa kure uye uise pfungwa pakuona kwakajeka" inoratidza kuchinja kwekuona kwakajeka uye kwakajeka kure sezvo chirebvu chinofamba chichikwira nekudzika.
(2) Kushandiswa kwenzvimbo iri pedyo yekushandisa
"Ndokumbira utarise pepanhau uye tarisa paunogona kuona zvakajeka."Ratidza shanduko muchiratidzo paunenge uchifambisa musoro kubva kune rumwe rutivi uchienda kune rumwe kana kufambisa pepanhau.
(3) Kushandiswa kwepakati-renji nzvimbo
"Ndokumbira utarise pepanhau uye tarisa paunogona kuona zvakajeka."Isa bepanhau kunze kuti uwedzere kureba kwekuverenga.Ratidza kuti kusaona zvakanaka kunogona sei kudzorerwa nekugadzirisa nzvimbo yemusoro kana kufambisa pepanhau.Ratidza shanduko muchiono kana uchifambisa musoro kana bepanhau parutivi.
Zvishanu, mamwe akakosha ma paramita e lens
Iyo refractive index
Iyo refractive index ye lens inotarirwa nezvinhu zvinoshandiswa.Mamwe ma paramita akafanana, lenzi ine yakakwira refractive index yakatetepa.
Lens diopter (vertex focus)
Muzvikamu zveD,1D yakaenzana neinowanzonzi 100 madhigirii.
Ukobvu hwepakati reLens (T)
Kune iyo yakafanana zvinhu uye kupenya, iyo yepakati ukobvu inotaridza zvakananga kumucheto ukobvu hwelens.Tichifunga, kudiki kwepakati ukobvu, kutetepa kwe lens kutaridzika, asi kudiki kwepakati ukobvu kunokonzeresa.
1. Malenzi haana kusimba, haana kuchengetedzeka kupfeka uye anonetsa kugadzira uye kutakura.
2. Center luminosity iri nyore kuchinja.Saka chiyero chenyika chine murau unoenderana nerensi yepakati ukobvu, chaiyo inokwanisa lens inogona kunge yakakora pachinzvimbo.Chengetedzo yepakati ukobvu hwegirazi lens> 0.7mm Chengetedza nzvimbo ukobvu hweresin lens> 1.1mm
Iyo lens dhayamita
Zvinoreva dhayamita ye rough round lens.
Iyo yakakura dhayamita yelenzi, zvinoita nyore kuti mugadziri awane chinhambwe chemutengi chakarurama.
Iyo yakakura iyo dhayamita, iyo yakakura pakati
Iyo yakakura iyo lens dhayamita ndeye, iyo yakakwirira inowirirana mutengo
Nhanhatu, anti - firimu tekinoroji
(1) kupindira kwechiedza;Kuitira kuti iyo coating iratidze mwenje uye lens inoratidzira mwenje crest uye dhiri zvinopindirana.
(2) Mamiriro ezvinhu ekugadzira iyo inoratidza huwandu hwe lens zero (monolayer firimu):
A. Iyo refractive index yezvinhu zvekuputira yakafanana nesquare root ye refractive index ye lens material.Apo n=1.523, n1=1.234.
B. Ukobvu hwekuputira i1/4 yewavelength yechiedza chechiitiko, yellow wavelength i550nm, uye ukobvu hwekujasa i138 nm.
(3) Coating zvinhu uye nzira
zvinhu: MgF2, Sb2O3, SiO2
Nzira: Vacuum pasi pekupisa kwakanyanya
(4) Hunhu hwekavharwa lenzi
Zvakanakira: kunatsiridza kutapurirana, kuwedzera kujeka;Yakanaka, isina kuratidzwa kuri pachena;Deredzai lens vortexes (vortexes inokonzerwa nechiedza chinoratidzwa kubva kunharaunda ye lens inoratidzira kubva mberi uye kumashure kwelens kakawanda);Bvisa kunyengera (mukati we lens inobvuma kuratidzwa kwechiedza chechiitiko shure kwayo muziso, izvo zviri nyore kubudisa kuneta kwekuona);Kuwedzera kupikisa kuchiedza chinokuvadza (inonyatsoratidzwa nekusiyana ne membraneless lenses).
Kukanganisa: mavara emafuta, zvigunwe zvinoratidzira zvakajeka;Muvara wefirimu uri pachena kubva kudivi Angle
Nomwe, kusarudzwa kwe lens
Mutengi anodiwa lens: yakanaka, yakasununguka uye yakachengeteka
Yakanaka uye yakaonda: refractive index, mechanical simba
Durability: kupfeka kuramba, hapana deformation
Asina-reflective: wedzera firimu
Kwete tsvina: firimu risina mvura
Chiedza chakanaka:
Yakanaka optical zvivakwa: mwenje transmittance, dispersion index, dyeability
Yakachengeteka UV kuramba uye kukanganisa kupikisa
Maitiro ekubatsira vatengi kusarudza lenzi:
1. Sarudza zvinhu maererano nezvinodiwa
Impact kuramba: kusangana neSAFETY bvunzo yeFDA yakajairwa, iyo lenzi haisi nyore kuputswa.
Lens chena: yakanakisa polymerization maitiro, yakaderera yero index, isiri nyore kuchembera, kutaridzika kwakanaka.
Chiedza: iyo chaiyo giravhiti yakaderera, anopfeka anonzwa akareruka uye akasununguka, uye hapana kumanikidzwa pamhino.
Pfeka kuramba: kushandiswa kweiyo silicon oxide yakaoma tekinoroji, kupfeka kwayo kuramba padyo negirazi.
2. Sarudza refractive index maererano nekupenya kwevatengi
3, maererano nezvinodiwa nemutengi kusarudza yakakodzera kurapwa kwepamusoro
4. Sarudza mhando maererano nemutengo wepfungwa wevatengi
5. Zvimwe zvinodiwa
Huwandu hwemarudzi ese emalenzi hunofanirwa kunzwisiswa zvichienderana nemamiriro chaiwo echitoro, kusanganisira:
1. Inventory yezvigadzirwa zviripo
2, inogona kugadzirwa kune fekitori chidimbu chidimbu renji, kutenderera
3. Malenzi asingakwanisi kugadzirwa
Kukanganisa: kugadzirisa kwakaoma;Nzvimbo iri nyore kukwenya, kusagadzikana kwekushisa, 100 madhigirii Celsius shanduko
Nguva yekutumira: Sep-01-2021