Mafirita emaziso anowanzo shandiswa mafirita emaziso, ari maturusi anosarudza kufambisa mwenje weavelengths akasiyana, kazhinji girazi rakatsetseka kana midziyo yepurasitiki munzira yemaziso, inodhayiwa kana kuti ine mabhanhire ekuvhiringidza.Zvinoenderana nemaitiro ekuona, yakakamurwa kuita pass-bhendi sefa uye yekucheka-kure sefa;mu spectral analysis, yakakamurwa kuita absorption filter uye interference filter.
1. Barrier filter inogadzirwa nekusanganisa madhayi akakosha mu resin kana girazi zvinhu.Zvinoenderana nekugona kutora mwenje weakasiyana wavelengths, inogona kutamba yekusefa.Mafirita egirazi ane mavara anonyanya kufarirwa pamusika, uye zvakanakira kugadzikana, kufanana, yakanaka danda mhando, uye yakaderera mutengo wekugadzira, asi iwo ane dhizaini yepassband yakakura, kazhinji isingasviki 30nm.ye.
2. Bandpass kupindira mafirita
Iyo inotora nzira yekuputira vacuum, uye inopfekedza dhizaini yefirimu yemaziso nehupamhi hwepamusoro pamusoro pegirazi.Kazhinji, chimedu chegirazi chinogadzirwa nepamusoro-soro akaturikidzana akawanda emafirimu, uye mutemo wekukanganisa unoshandiswa kubvumira masaisai emwenje mune yakatarwa spectral renji kuti ipfuure.Kune akawanda marudzi ekukanganisa mafirita, uye minda yavo yekushandisa yakasiyanawo.Pakati pavo, anonyanya kushandiswa kupindira mafirita mabhendi mafirita, cutoff mafirita, uye dichroic mafirita.
(1) Bandpass Mafirita anogona chete kufambisa mwenje weimwe wavelength kana nhete bhendi, uye mwenje kunze kwepassband haugone kupfuura.Iwo makuru optical zviratidzo zvebhendi sefa ndezvi: centre wavelength (CWL) uye hafu bandwidth (FWHM).Zvinoenderana nehukuru hwebandwidth, yakakamurwa kuita: narrowband sefa ine bandwidth<30nm;Broadband sefa ine bandwidth>60nm.
(2) Sefa yekucheka-cheka inogona kupatsanura spectrum kuita matunhu maviri, mwenje munharaunda imwe haigone kupfuura nenharaunda iyi inonzi dunhu rakachekwa, uye mwenje mune imwe dunhu inogona kupfuura zvizere inonzi passband dunhu, Mafirita akajairika mafirita marefu-kupfuura uye mafirita mapfupi.Yakareba-wavepass sefa yelaser mwenje: Zvinoreva kuti mune yakatarwa wavelength renji, iyo yakareba-wave nzira inofambiswa, uye iyo pfupi-wave nzira inogurwa, iyo inotora basa rekuparadzanisa pfupi-wave.Short wave pass sefa: Ipfupi wave pass sefa inoreva yakatarwa wavelength renji, iyo pfupi wave nzira inofambiswa, uye iyo yakareba wave wave yakatemwa, iyo inobata basa rekuparadzanisa iyo refu wave.
3. Dichroic sefa
Dichroic filter inoshandisa musimboti wekupindira.Mitsetse yadzo inoumba nhevedzano inoenderera yemakomba anotarisisa anowirirana newavelength inodiwa.Kana nhongonya nemadhiri zvinopindirana, mamwe mawavelength anobviswa zvinoparadza kana kuratidzwa.Dichroic mafirita (anozivikanwawo se "reflective" kana "mutete firimu" kana "kupindira" mafirita) anogona kugadzirwa nekuputira girazi substrate neakatevedzana eptical coatings.Dichroic mafirita anowanzo ratidza zvikamu zvisingadiwe zvechiedza uye kuendesa zvimwe.
Rudzi rwemavara e dichroic mafirita anogona kudzorwa nehupamhi uye kurongeka kwemajasi.Iwo anowanzo kudhura zvakanyanya uye zvakanyanya kutetepa kupfuura absorption sefa.Iwo anogona kushandiswa mumidziyo yakaita se dichroic prisms mumakamera kuparadzanisa mwenje wemwenje muzvikamu zvemavara akasiyana.
Nguva yekutumira: Sep-29-2022