Joalo ka ha ho hlaha hangata, mefuta eohle ea likhalase tsa myopic e hlaha ka ho sa feleng, joale ho tlile joang hore 'mala o fetole likhalase tsa myopic e be bothata boo motho e mong le e mong a bo tsotellang haholo.Hobane likhalase tsa myopia tsa discoloration li shebahala li le ntle, kahoo ke khetho ea bakuli ba bangata ba myopic, ka tlase bakeng sa likhalase tsa myopia tsa discoloration kamoo ba ka u tsebisang ka ho qaqileng kateng.
Lense ea photochromic e entsoe ka ho kenyelletsa palo e loketseng ea silevera ea bromide le copper oxide micrograins ka har'a khalase e tloaelehileng.Ha e pepeselitsoe leseli le matla, bromide ea silevera e senyeha ho ba silevera le bromine.Lithollo tse nyenyane tsa silevera tse bolang li fa khalase 'mala o sootho o lefifi.Ha leseli le fifala, silevera le bromine li ile tsa hlahisoa ke koporo oxide ho etsa silver bromide hape.Ka lebaka leo, 'mala oa lilense o ile oa boela oa khanya.
"Lense ea photochromic" e ntle haholo le "lilense tsa letsatsi tse polarized"
E loketse batho bohle, ho kenyelletsa le batho ba nang le pono e khuts'oane
Ntlha ea pele, lense e entsoe ka khalase e silafetseng
Khalase e fetolang 'mala ha e khantšitsoe ke khanya ea bolelele bo loketseng le ho khutlisetsa 'mala oa eona oa pele ha mohloli oa khanya o tlosoa.E boetse e tsejoa e le khalase ea photochromic kapa khalase ea mebala e khanyang.Khalase e fetolang mebala e entsoe ka ho kenyelletsa lisebelisoa tsa mebala e bobebe ka har'a lisebelisoa tse tala tsa khalase.Sesebelisoa sena se na le limolek'hule tse peli tse fapaneng kapa boemo ba sebopeho sa elektronike, sebakeng sa leseli le bonahalang ho na le coefficient tse peli tse fapaneng tsa ho monya, tlas'a ts'ebetso ea leseli, e ka tloha mohahong o mong ho ea ho mofuta o mong oa sebopeho, sesosa sa phetoho ea mebala e fetohang, e tloaelehileng e nang le silevera. khalase ea mebala ea halide, aluminium ka khalase ea sodium borate ho kenyelletsa halide e nyane ea silevera (AgX) joalo ka sensitizer, Kamora ho eketsa lets'oao la li-ion tsa koporo le cadmium joalo ka sensitizer, khalase ea kopanngoa ebe e tšoaroa mocheso ka mocheso o loketseng ho etsa silevera. halide e tsepame ka likaroloana.Ha e khantšitsoe ke khanya ea ultraviolet kapa leqhubu le lekhutšoanyane la khanya e bonahalang, li-ion tsa silevera li fokotseha ho ba liathomo tsa silevera, ’me liathomo tse ngata tsa silevera li bokana ka har’a colloid ho etsa hore khalase e be ’mala;Ha leseli le emisa, liathomo tsa silevera li fetoha li-ion tsa silevera 'me li nyamela tlas'a mahlaseli a mocheso kapa khanya ea nako e telele (e khubelu kapa e infrared).
Khalase ea Silver halide e fetolang mebala ha e bonolo ho khathala, ka mor'a liphetoho tse fetang 300,000 tsa khanya le moriti, e ntse e sa hlōlehe, ke ntho e tloaelehileng ea ho etsa likhalase tse fetolang mebala.Khalase e fetolang 'mala e ka boela ea sebelisoa bakeng sa polokelo ea tlhahisoleseding le pontšo, ho fetola setšoantšo, ho laola matla a khanya le ho fetola.
Ea bobeli, molao-motheo oa phetoho ea 'mala
Likhalase tseo lense e fetolang 'mala ho tsona ha khanya e lulang e fetoha.Lebitso le felletseng la likhalase tsa photochromic, tse tsejoang hape e le likhalase tsa mebala e bobebe.'Mala oa lense o fetoha o lefifi le phetisetso ea khanya ea fokotseha ha lense e khantšitsoe ke khanya ea ultraviolet le leqhubu le lekhutšoane le bonahalang tlas'a khanya ea letsatsi.Lenseng ea ka tlung kapa e lefifi, khanya ea khanya ea eketseha, fifala ho khutlisa pono.Photochromism ea lense e iketselitse ebile e ka khutlisetsoa morao.Likhalase tse fetolang 'mala li ka fetola phetisetso ea leseli ka phetoho ea' mala oa lense, e le hore leihlo la motho le ka ikamahanya le phetoho ea leseli la tikoloho, ho fokotsa mokhathala oa pono, ho sireletsa mahlo.Chromic lense ea chromic pele e aroloa ntle le 'mala oa motheo le' mala o bobebe o na le mefuta e 'meli ea mebala ea motheo;'Mala ka mor'a ho fifala ha e le hantle o na le mefuta e 'meli e bohlooho, e mosehla.
1964 Corning Glass Company e ile ea qapa khalase ea photochromic.Hajoale, bahlahisi ba ka sehloohong lefatšeng ba lense ea khalase e fetotsoeng e se nang letho ke k'hamphani ea likhalase tsa corning ea United States le Fora, k'hamphani e khethehileng ea likhalase ea Jeremane Schott Group le khamphani ea The UK Chance Pilkington.Beijing, China, le bahlahisi ba bang ba hlahisa mebala - lilense tse fetolang.
Lense ea chromic e na le halide ea silevera (silver chloride, silver bromide) microcrystals.Ha e pepeselitsoe leseli le ts'ebetsong joalo ka leseli la ultraviolet kapa leseli le lekhutšoane le bonahalang, ion ea halide e ntša lielektrone, tse hapiloeng ke ion ea silevera, 'me ho etsahala lintho tse latelang:
Halide ea silevera e se nang 'mala e senyeha ho ba liathomo tsa silevera tse opaque le liathomo tsa halogen tse bonaletsang, tse monyang khanya le ho etsa hore lense e se ke ea bonaletsa.Kaha halogen e ka har'a lense ea ho fifala ha e phonyohe, ho ka etsahala hore motho a fetohe.Ka mor'a hore leseli la ts'ebetso le tlosoe, silevera le halogen li kopantsoe hape ho khutlisetsa lense boemong ba eona ba pele bo hlakileng, bo se nang 'mala kapa bo bobebe.Litaba tsa silver halide micrograins li ka ba 4×1015 / cm3, bophara ke hoo e ka bang 80 ~ 150, 'me sebaka se tloaelehileng pakeng tsa likaroloana ke hoo e ka bang 600. Thepa ea photochromic ea lilense tsa discoloration e hlalosoa ke ho fifala - ho tsosolosa mokhoa oa ho tsosolosa (bona setšoantšo).TO ke phetiso ea mantlha ea khalase ea lense pele e pepeseha, 'me TD ke phetisetso ea lense ho 550nm wavelength kamora ho pepesetsoa HO 5.× 104Lx lebone la xenon bakeng sa metsotso e 15.THF ke halofo ea nako ea ho hlaphoheloa, ke hore, nako e hlokahalang bakeng sa phetisetso ea lense e silafetseng hore e hlaphoheloe ka mor'a ho emisa.Boleng bo phahameng ba ho fetola lense lense e lokela ho ba pepeneneng, ha e na 'mala oa emulsifying le khanya, nako ea ho hlaphoheloa ea halofo e khuts'oane, ho hlaphoheloa kapele.Phetiso ea mantlha ea lilense tsa chromic ntle le 'mala oa mantlha e ka ba 90%.Phetisetso ea mantlha ea lilense tsa chromatic tse nang le 'mala oa mantlha e ka ba tlase ho 60 ~ 70%.Phetisetso ea lense e fetolang mebala ea khalase ea letsatsi e theohela ho 20 ~ 30% kamora ho fifala ha khanya.Mofuta o phutholohileng oa ho fifala ha lense e fetohang mmala ha o tebile, o fetoha o bobebe ka mor'a hore phetiso e fete hoo e ka bang 40 ~ 50%.
Boraro, ts'ebetso ea tlhahiso
Likhalase tse senyang mebala tse sebelisang likhalase tse feto-fetohang ho latela sebopeho li arotsoe ka khalase ea borosilicate discoloration le khalase ea aluminium phosphate discoloration.Chaena, United States, Jeremane le likhalase tse ling tsa borosilicate, United Kingdom e sebelisa khalase ea aluminium phosphate.
Tlhahiso ea khalase e fetolang mebala ea lense e se nang letho e kenyelletsa ho lokisoa ha motsoako, ho qhibiliha ha likhalase, ho hatella ho bopa le kalafo ea mocheso.Ts'ebetso e tsoelang pele ea ho qhibiliha e sebelisoa ho qhibiliheng ha khalase e fetotsoeng lefatšeng, 'me ho na le mekhoa e' meli ea ho qhibiliha ha platinum e le 'ngoe le ho qhibiliha ho tsoelang pele Chaena.Ka mor'a hore 'mala o fetola lense o hatelloa ka sebōpeho, phekolo ea mocheso e tlameha ho etsoa tlas'a taolo e thata ea mocheso ho etsa hore karolo ea khalase e arohane le ho laoloa ho hlahisa palo e kholo ea li-microcrystals tsa halide tsa silevera tse qhalakaneng, tse fanang ka lense photochromism.
Tse 'nè, tlhahiso ea thepa
Khalase e nang le silver bromide (kapa silver chloride) le trace copper oxide ke mofuta oa khalase e feto-fetohang, ha e hlasetsoe ke mahlaseli a letsatsi kapa mahlaseli a ultraviolet, bromide ea silevera e senyeha, liathomo tsa silevera (AgBr==Ag+Br), matla a athomo a silevera ho hohela leseli le bonahalang, ha liathomo tsa silevera li bokelloa ho palo e itseng, karolo e khanyang ea khalase e kenngoa, Khalase e hlakileng e se nang 'mala e fetoha filimi ka nako ena, ha khalase e kena lefifing, ka mor'a phetoho ea mebala tlas'a catalysis ea koporo. oxide, silevera le liathomo tsa bromine li ka kopana ho ba bromide ea silevera (Ag + Br = = AgBr), hobane li-ion tsa silevera ha li amohele leseli le bonahalang, kahoo khalase e tla fetoha e se nang 'mala, e hlakileng, ena ke molao-motheo oa ho fetoha ha khalase ea mebala.
Etsa khalase ea fensetere e nang le khalase ea mebala e fetohang, e ka etsa hore leseli le fetang tlas'a letsatsi le bataolang le be le theohe 'me le be le maikutlo a pholileng, fetola khalase ea' mala le eona e ka sebelisoa ho etsa lense ea letsatsi, ea fetoha likhalase tsa mahlo tsa 'mala ho tloha ho sena.
Tlas'a maemo a tloaelehileng, tlhahlobo ea photometric feela e tsamaellanang ka nepo e ke ke ea baka kotsi mahlong, empa hobane tšebeliso ea motho ka mong ha e tšoane, kahoo u se ke ua u emela ka likhalase ka mor'a hore dioptara e se ke ea eketseha.'Mala oa' maraka oa lense ea myopic haholo-holo ke ho feto-fetoha ha filimi le ho senyeha ha filimi mefuta e 'meli, phapang ke hore filimi e fetola lebelo la ho arabela ka potlako, ha ho phapang ea mebala, theko e theko e boima hanyenyane.Lebelo la substrate le lieha, haeba tekanyo ea ho le letšehali le e nepahetseng e ke ke ea hlaha phapang ea mebala, empa e theko e tlaase, nako e telele ea ho sebelisa nako.Haeba e silafalitsoe, ha e khothalletsoe ho apara nako e telele.
Fetola 'mala oa likhalase tsa myopic li sebelisoa habonolo, ha li hloke likhalase tse khethehileng tsa letsatsi, ke likhalase tsa mokuli tsa myopic.Leha ho le joalo, ho nka nako ho fetola 'mala, o sa lokelang maemo ao leseli le fetohang kapele 'me le ke keng la fetoloa ka ho sa feleng.Bophahamo ba myopia le motho ea nang le phapang e kholo ea tekanyo ea mahlo a mabeli ha aa lokela ho lumellana le phetoho ea 'mala oa sengoathoana.
Ho thoe'ng ka likhalase tsa myopia tsa discoloration?Ha e le hantle fetola 'mala oa likhalase tsa myopic le tse se nang mebala tse tšoanang, li ke ke tsa etsa hore tekanyo ea mahlo e tebe ka lebaka la ho nka mebala, roala likhalase ho batla ho ela hloko lintlha tseo feela, u se ke ua bua leshano, mohlala, bala buka, shebella TV le ho sebelisa k'homphieutha ho fihlela moo. kamoo ho ka khonehang u se ke ua itšetleha ka haufi haholo, ho seng joalo tekanyo ea myopic e boetse e khona ho teba butle-butle.
Ho sheba ka holimo ho "fetola likhalase tsa myopia ka mebala joang", lumela hore u utloisisa ho fetola 'mala oa likhalase tsa myopia.U hopotse, ka likhalase tsa myopia li tlameha ho ea lefapheng la kamehla la optometry, e le hore u se ke ua etsa liphoso.
Nako ea poso: Aug-04-2021