1. Materials da Categories
Dangane da abu, ana iya raba shi zuwa nau'ikan guda huɗu: gilashi, PC, resin da ruwan tabarau na halitta.Mafi yawan amfani da shi shine guduro.
Spherical da aspherical: galibi magana game da ruwan tabarau na aspherical, fa'idar ruwan tabarau na aspherical shine cewa murdiya gefen ruwan tabarau kadan ne.
Ta wannan hanyar, ruwan tabarau yana da hoto mai kyau, babu ɓarna, da fage na gani.
Kuma a ƙarƙashin nau'in abu ɗaya da digiri, ruwan tabarau na aspherical sun fi lebur kuma sun fi sirara fiye da ruwan tabarau.
Digiri da Refractive Index
Gabaɗaya magana, ana ba da shawarar zaɓin ruwan tabarau tare da babban fihirisar refractive.Mafi girman ma'aunin refractive, mafi ƙarancin ruwan tabarau.
Amma kula da wata matsala, wato, mafi girman ma'anar refractive, tasiri a kan lambar Abbe, kada ku yi makantar da ma'anar refractive, takamaiman bincike na takamaiman matsaloli.
2.Abbe lambar da shafi
Abin da ake kira Abbe coefficient, wanda aka fi sani da dispersion coefficient, an fi kiransa da gefen gilashin don ganin abu kusa da idon mutum ba tare da gefen purple ba, gefen rawaya da blue.Gabaɗaya magana, mafi girman ma'anar refractive na matsakaici, mafi girman tarwatsawa, wato, ƙananan lambar Abbe.Wannan kuma ya amsa dalilin da ya sa aka ce a sama cewa kada a bi diddigin ma'anar ta makaho.
(Knock on the black allo: The Optical medium) yana da mabambantan fihirisa refractive daban-daban na tsawon zangon haske daban-daban. Misali, jujjuyawar hasken rana ta hanyar prism zai nuna launuka bakwai na haske, wanda shine yanayin tarwatsewa.)
Na gaba, bari muyi magana game da suturar ruwan tabarau.Kyakkyawan ruwan tabarau zai kasance da yadudduka da yawa.
Samfurin saman ba shi da ruwa da mai;Fim ɗin anti-tunani yana ba da ƙarin haske a cikin:
Fim ɗin fitarwa na lantarki yana sa ƙurar ba ta da sauƙin sha;fim mai wuya zai iya kare ruwan tabarau kuma ya sa ya zama ba sauki a zazzagewa da sauransu.
3. Ruwan tabarau mai aiki
Maganar gaskiya, game da ayyukan ruwan tabarau.
Na kuma yi tunanin ba a iya bayyanawa a baya, ruwan tabarau ba don taimakawa myopia ya ga abubuwa a fili ba, daga ina ayyuka da yawa suka fito?Aƙalla, kawai na san cewa akwai ruwan tabarau masu launin shuɗi, har sai bayan na bincika bayanai da yawa (Maigida, na gane!)
Ya bayyana cewa yana da nau'i-nau'i da yawa!(Ko da yake ba zan iya tunawa ba bayan karanta shi)
Duk da haka, don cikakkiyar labarin, an yanke shawarar warware shi.
Lens mai haske na Anti-blue:Wannan baya buƙatar gabatar da shi da yawa.Kamar yadda sunan ya nuna, zai iya taka rawar anti-blue haske.Ya fi dacewa da abokai waɗanda galibi suna kallon wayoyin hannu da kwamfutoci.
B Lens Multifocal Progressive Multifocal:Irin wannan ruwan tabarau yana nufin cewa akwai wurare da yawa a kan ruwan tabarau guda ɗaya, kuma ana iya ganin abubuwa a nesa daban-daban tare da jujjuya nisan gani.Wato wannan ruwan tabarau na iya samun haske daban-daban da ake buƙata don ganin dogon nisa, matsakaici da nisa kusa a lokaci guda.
- Yana da rukuni uku:
- Fim mai ci gaba na matsakaici da tsofaffi (gilalan karatu): Wannan ya kamata ya zama mafi yawan.Ya dace da duka myopia da presbyopia.
- Gilashin kula da ido na matasa - ana amfani da su don rage gajiya na gani da sarrafa saurin ci gaban myopia.Len "dalibi mai kyau" daya ne irin wannan.
- b Adult anti-gajiya ruwan tabarau - ga masu shirye-shirye da sauran abokai da suka saba fuskantar kwamfuta.A wasu kalmomi, yawancin ji shine kawai don jin dadi na tunani.Abu mafi mahimmanci shine hada aiki da hutawa, da yin hutun da ya dace.
- c ruwan tabarau masu canza launi mai wayo.Lokacin fuskantar hasken ultraviolet mai ƙarfi, zai yi duhu ta atomatik kuma ya toshe hasken ultraviolet mai ƙarfi a waje.Lokacin komawa cikin yanayi mai duhu kamar na cikin gida, zai yi haske ta atomatik don tabbatar da tsabtar hangen nesa.
Lokacin aikawa: Janairu-17-2022