I. Ka'idar Ruwan tabarau na Photochromic
A cikin al'ummar zamani, yayin da gurɓataccen iska ke ta'azzara kuma layin ozone yana lalacewa a hankali, gilashin ido galibi ana fallasa su ga hasken rana mai wadatar UV. Gilashin photochromic suna ɗauke da ƙananan kristal na abubuwan photochromic - halide na azurfa da jan ƙarfe oxide. Idan aka fallasa su ga haske mai ƙarfi, halide na azurfa yana rikidewa zuwa azurfa da bromine; ƙananan lu'ulu'u na azurfa da aka samar a cikin wannan tsari suna mayar da ruwan tabarau launin ruwan kasa mai duhu. Lokacin da hasken ya shuɗe, azurfa da bromine suna sake haɗuwa zuwa halide na azurfa a ƙarƙashin aikin catalytic na jan ƙarfe oxide, suna haskaka ruwan tabarau sake.
Idan aka fallasa ruwan tabarau na photochromic ga hasken ultraviolet (UV), rufinsu zai yi duhu nan take yayin da yake toshe shigar UV, wanda hakan ke hana UVA da UVB cutar da idanu sosai. A ƙasashen da suka ci gaba, masu amfani da ruwan tabarau na photochromic sun daɗe suna gane su saboda fa'idodinsu na lafiya, sauƙin amfani, da kuma kyawunsu. Ci gaban shekara-shekara a yawan masu amfani da ruwan tabarau na photochromic ya kai lambobi biyu.
II. Canje-canjen Launi na Ruwan tabarau na Photochromic
A ranakun rana: Da safe, iska tana da siraran gajimare, wanda ke ba da ƙarancin toshewar UV, yana ba da damar ƙarin hasken UV su isa ƙasa. Sakamakon haka, ruwan tabarau na photochromic suna yin duhu sosai da safe. Da yamma, ƙarfin UV yana raguwa - wannan saboda rana tana nesa da ƙasa, kuma hazo da ke taruwa a lokacin rana yana toshe yawancin hasken UV. Saboda haka, launin ruwan tabarau yana zama mai haske sosai a wannan lokacin.
A ranakun gajimare: Hasken UV har yanzu yana iya isa ƙasa da ƙarfi mai yawa a wasu lokutan, don haka ruwan tabarau na photochromic zai ci gaba da yin duhu. A cikin gida, suna kasancewa kusan haske ba tare da wani launin ko launi ba. Waɗannan ruwan tabarau suna ba da mafi kyawun kariya daga UV da haske a kowane yanayi, suna daidaita launinsu da sauri bisa ga yanayin haske. Yayin da suke kare gani, suna ba da kariya daga lafiyar ido a kowane lokaci, ko'ina.
Alaƙa da zafin jiki: A ƙarƙashin irin wannan yanayi, yayin da zafin jiki ke ƙaruwa, launin ruwan tabarau na photochromic yana haskakawa a hankali; akasin haka, lokacin da zafin jiki ya faɗi, ruwan tabarau suna duhu a hankali. Wannan ya bayyana dalilin da yasa launin ruwan yake haske a lokacin rani kuma yana duhu a lokacin hunturu.
Saurin canjin launi da zurfin launin ruwan tabarau suma suna da alaƙa da kauri na ruwan tabarau.
Lokacin Saƙo: Agusta-28-2025