Filifiliga Maualalo ma Polarizers/Waveplates
O se faamama o se ituaiga faʻapitoa o faʻamalama mafolafola, pe a tuʻuina i le auala malamalama, e faʻafeiloaʻi pe teena se vaega patino o galu (= lanu).
O mea fa'apitoa o se faamama o lo'o fa'amatalaina e ala i lona tali fa'asolosolo, lea e fa'amaoti mai ai pe fa'afefea ona suia le fa'ailo malamalama fa'alavelave e le fa'amama, ma e mafai ona fa'aalia fa'akalafi e lana fa'afanua fa'asalalau fa'apitoa.
O ituaiga eseese o filiga fa'apitoa e aofia ai:
Absorptive filiga o filiga sili ona faigofie lea o le tuufaatasiga autu o le faamama substrate poʻo se faʻapipiʻi faʻapipiʻi faʻapipiʻiina e mitiia pe poloka atoa ai galu e le manaʻomia.
E sili atu le lavelave o filiga e pa'u i le vaega o filiga dichroic, e ta'ua o le "reflective" po'o le "thin film" filiga.O filiga Dichroic e fa'aogaina le fa'atonuga o le fa'alavelave: o latou laulau e fausia ai se fa'asologa faifaipea o fa'amana'oga ma/po'o fa'amomoli, fa'atagaina le amio sa'o i totonu ole umi ole galu mana'omia.Dichroic filiga e sili ona aoga mo galuega faʻasaienisi saʻo aua o latou galu saʻo (tulaga o lanu) e mafai ona matua faʻatonutonuina e le mafiafia ma le faʻatonuga o faʻalava.I le isi itu, e masani lava ona sili atu le taugata ma sili atu ona maaleale nai lo filiga absorption.
Neutral Density Filter (ND): O lenei ituaiga o faamama faavae e faʻaaogaina e faʻaitiitia ai le faʻalavelave faʻafuaseʻi e aunoa ma le suia o lona tufatufaina atu (pei o le tioata atoa Schott filter).
Filifiliga Lanu (CF): Fa'amama lanu o lo'o fa'afefeteina filiga e faia i tioata lanu e mitiia le malamalama i nisi laina umi galu i tikeri eseese ma pasi atu le malamalama i isi laina i se tulaga sili atu.E fa'aitiitia ai le fa'afefe o le vevela e ala i le masini fa'apipi'i, fa'afefeteina fa'avevela infrared ma fa'aumatia le malosi fa'aputu i le ea si'osi'omaga.
Sidepass/Bandpass Filters (BP): Optical bandpass filiga e faʻaaogaina e filifilia ai se vaega o alaleo aʻo teena uma isi galu.I totonu o lenei va'aiga fa'amama, e fa'ataga na'o fa'amama fa'amama umi e ui atu i le fa'amama, a'o fa'amama pupuu e fa'atagaina na'o galu laiti e pasi.O filiga umi ma le pupuu e aoga mo le vavaeeseina o itulagi faʻapitoa.
Dichroic filter (DF): O le dichroic filter o se faʻamaʻi lanu saʻo e faʻaaogaina e filifili ai se vaega itiiti o lanu o le malamalama aʻo atagia lelei isi lanu.
Filifiliga Maualuluga: E aofia ai le umi, shortpass, bandpass, bandstop, lua bandpass, ma le faʻasaʻoina o lanu i galu eseese mo talosaga e manaʻomia ai le mautu o le mata ma le tumau faʻapitoa.
Taimi meli: Oke-25-2022