Me kuka sani game da "hannun tabarau na photochromic"?

Lokacin rani yana zafi sosai, yana shirya ƙaramin dogon hutu don fita abokai don samun dacewa cikin kwanciyar hankali don fita don jin daɗin hasken rana. Amma ga abokai da suka sa gilashin, amma idanu photophobia, ba zai iya bin zuciya sa tabarau ko bukatar sa biyu gilashin wahala.

 

Yawancin sa gilashin myopic na ƙananan abokin tarayya, lokacin bazara na bazara yana da ciwon kai ba tare da tsayawa ba: sake m yadda za a sa gilashin rana ya sake buƙatar karewa daga rana? Tafiya ta yau da kullun fatar fuskar rana ba za ta iya hana ido ba yaya ake yi? Myyopic drive yaya ya kamata a yi kuma?

 

 

Kalli hoton da ke sama. Shin za ku gwammace ku sa gilashin baƙar fata mai lambar dioptre a kansu, ko gilashin da ke da tabarau a ciki?

 

A cikin Rana mai zafi ko hasken haske mai tsananin dusar ƙanƙara, ruwa, haske zai haifar da kwarjini mai girma ga idanu. A wannan lokaci, mutane sukan zabi tabarau na tabarau don rage haske zuwa idanu na ƙarfafawa.

 

Amma lokacin da mutane suka sa gilashin tabarau, a cikin dakin duhu ba za su iya ganin abubuwa da yanayi ba, musamman ga abokai masu gajeren hangen nesa, kawai "ido biyu baki" , tabarau ba su dace ba. Sabili da haka, hanya mafi kyau don kare idanunku daga lalacewar UV yayin da kuma kula da matsalolin da ke haifar da lalacewa shine sanya gilashin da ba a iya jurewa ba. Gilashin masu canza launi hakika tabarau ne masu dacewa kuma masu amfani, amma kun san dalilin da yasa Lens zai canza launi? Menene amfanin tabarau masu canza launi?

 

1. Me yasa Lens na chromotropic zai iya canza launi?

 

Lens Canjin Launi, wanda a zahiri ake kira Photochromic Lens, ruwan tabarau ne waɗanda ke canza launi dangane da tsananin hasken ultraviolet da zafin jiki. Yana da a cikin talakawa guduro ruwan tabarau don ƙara daban-daban photosensitizers, kamar azurfa Halide, silver barium acid, jan halide jan karfe da chromium halide. Bayan canjin launi na iya zama launi daban-daban, kamar tawny, Tawny Gray, launin toka da sauransu.

 

 

Ka'idar canza launin:

Lokacin da aka kera Lens mai canza launi, ana ƙara adadin da ya dace na halide na azurfa azaman mai ɗaukar hoto. Silver Halide shine mahallin IONIC na Halogen da azurfa. Halide na azurfa da ke cikin madubi mai canza launi ƙarami ce mai ƙanƙara mai ƙanƙanta kuma tana tarwatsewa iri ɗaya a cikin Lens. Saboda uniform da ƙanana, don haka lokacin da hasken haske ya haskaka, gabaɗaya baya bayyana yaduwa sabon abu. Wannan kuma yana sa gilashin da aka zana su yi kama da bayyananne da bayyane kamar tabarau na yau da kullun. Lokacin da haske ya haskaka (musamman haske mai gajeren lokaci) , kwayoyin halide na azurfa a cikin Lens suna rushewa zuwa azurfa da kuma halogen atom, wanda ke haskakawa ko watsar da hasken, tarin yawancin kwayoyin halitta na azurfa yana sa ruwan tabarau su bayyana launin baki, ko launin toka.

 

 

Lens mai canza launi yana da ƙarfi. Duk da cewa crystal halide crystal zai rube a ƙarƙashin haske mai ƙarfi, azurfa da halogen atom ɗin da sinadarai suka samar suna kusa da juna kuma ba za su tsere ba, idan hasken ya tsaya, sai ya koma yanayin halide na azurfa nan da nan, don haka sai ya sake bayyana a fili. Bugu da ƙari, an ƙara ƙaramin adadin jan karfe oxide zuwa ruwan tabarau masu canza launi, wanda ya zama mai haɓakawa kuma ya hanzarta bazuwar halide na azurfa a ƙarƙashin haske mai ƙarfi.

 

2. Fasahar Haɓakawa na Lens mai launi

 

A halin yanzu, akwai nau'ikan fasahar canza launi iri biyu a kasuwa: canza launin fim da canza launi.

 

Canjin launin fim":yana nufin farfajiyar ma'aunin ruwan tabarau mai canza launi, wanda ke da launi mai haske kusa da mara launi, wanda kuma aka sani da canjin fim mai rufi.

Abũbuwan amfãni: saurin canza launi, canza launi fiye da uniform.

Rashin hasara: gamuwa da babban tasirin launi na zafin jiki na iya shafar wani iyaka. Saboda haɓakar haɓakar haɓakar fim ɗin mai canza launi ba daidai yake da na fim ɗin aiki a saman Lens ba, fim ɗin May Crack a ƙarƙashin canjin zafin jiki na dogon lokaci (canzawar cikin gida da waje) .

 

Mai canza launi":yana cikin hanyar haɗin kayan aikin ruwan tabarau monomer albarkatun albarkatun ƙasa wanda aka rigaya ya gauraye gaba da lokaci a cikin wakili mai canza launin.

Abvantbuwan amfãni: saurin samarwa da sauri, samfuran inganci masu tsada.

Rashin hasara: Tsawon Lens da tsakiyar ɓangaren gefen launi zai bambanta, ƙimar darajar ba ta da kyau kamar fim ɗin chromotropic Lens.

 

3. Canjin launi na Lens mai canza launi

 

Duhu da walƙiya na ruwan tabarau masu canza launi suna da alaƙa da ƙarfin hasken ultraviolet, kuma ƙarfin hasken ultraviolet shima yana da alaƙa da yanayi da yanayi.

 

 

Ranakun Rana: Gajimaren iskar safiya yana yin bakin ciki, ƙarancin toshewar UV, saboda haka, safiya na ruwan tabarau mai canza launi zai yi duhu. Da yamma, hasken UV ya fi rauni kuma ruwan tabarau sun fi sauƙi.

 

Girgizar kasa: Hasken UV yana da rauni a ranakun da aka mamaye, amma har yanzu yana iya isa ƙasa, don haka ruwan tabarau masu launi na iya canza launi don kare ku, yana sa ya fi sauƙi fiye da kwanakin rana.

 

Zazzabi: a ƙarƙashin yanayin yanayin zafi na al'ada, yayin da zafin jiki ya karu, launi na ruwan tabarau masu canza launi za su zama masu sauƙi yayin da zafin jiki ya karu; akasin haka, lokacin da zafin jiki ya ragu, ruwan tabarau masu canza launi za su yi duhu a hankali. A takaice, wannan saboda lokacin da yawan zafin jiki da hamgaden ziru zai sake zama mai duhu. daukan hotuna, amma ruwan tabarau surface zafin jiki ne low, launi zai zama zurfi.

 

A cikin Daki: Gilashin ruwan tabarau ba safai suke canza launi kuma suna kasancewa a bayyane kuma marasa launi a cikin gida, amma har yanzu suna iya canza launi idan an fallasa su ga hasken UV na yanayi, suna ba da kariya ta UV nan take.

 

 

4. Me yasa muke zabar ruwan tabarau masu launi?

 

Tare da karuwar Myopia, mutane suna buƙatar ƙarin ruwan tabarau masu canza launi, musamman a lokacin bazara da bazara, rana mai zafi, hasken ultraviolet mai karfi, yana iya haifar da lalacewa ga idanu.

 

Ultraviolet radiation daga rana ya kasu kashi hudu makada bisa ga tsawon zango: UVA, UVB, UVC, UVD. UVA da UVB sune manyan waɗanda ke shiga cikin yanayi kuma su isa saman.

 

UVA, wato UVA, UVA, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, UVB, musamman a lokacin rani da rana.

 

 

Idanunmu na iya ɗaukar nau'ikan raƙuman raƙuman ruwa na UV, ɗaukar dogon lokaci wuce kima na UV na iya haifar da lalacewar ido:

 

Macular degeneration: bayan lokaci, lalacewar retinal lalacewa ta hanyar macular degeneration (AMD) , kuma shine babban dalilin makanta mai alaka da shekaru. YAWAN FUSKATA GA hasken UV yana ƙara haɗarin lalata macular degeneration.

 

CATARACT: Cataract shine gajimare na ruwan tabarau na ido, sashin ido wanda hasken ke mayar da hankali a cikinsa. Fitar da hasken ultraviolet, musamman UVB, yana ƙara haɗarin wasu nau'ikan cataracts. An kiyasta cewa kashi 10 cikin 100 na duk cututtukan cataract ana danganta su kai tsaye zuwa bayyanar UV.

 

PTERYGIUM (N): Sau da yawa ana kiranta da "ido mai hawan igiyar ruwa," PTERYGIUM wani girma ne mai ruwan hoda, wanda ba shi da ciwon daji wanda ke samuwa a kan launi na conjunctival sama da ido. Kuma ana tsammanin hasken ultraviolet zai iya taimakawa.

 

Heliokeratitis: wanda kuma aka sani da corneal Sunburn ko "makanta dusar ƙanƙara," Keratitis shine sakamakon babban ɗan gajeren lokaci ga haskoki na UVB. Tsawon tsalle-tsalle a bakin teku ko kuma ba tare da ingantattun tabarau ba na iya haifar da matsalar, wanda zai haifar da asarar hangen nesa na ɗan lokaci.

 

 

Sabili da haka, don buƙatar hasken rana da mutane masu ban mamaki suna canza matsala ga idanu sunscreen shine zaɓi na farko na ruwan tabarau masu canza launi.