Li-Filters tse sa nkeng lehlakore / tse bonahatsang ho se nke lehlakore
Li-filters tsa rona tsa absorptive neutral density (ND) li fumaneha ka boholo bo fapaneng ka li-optical densities (OD) ho tloha ho 0.1 ho isa ho 8.0. Ho fapana le bo-mphato ba bona ba tšepe, sefahla se seng le se seng sa ND se entsoe ka karolo e ka tlase ea khalase ea Schott e khethiloeng bakeng sa coefficient ea eona ea ho monya e bataletseng sebakeng se bonahalang ho tloha 400 nm ho isa 650 nm.
Li-filters tse bonahatsang tse sa nke lehlakore li fumaneha ka N-BK7 (CDGM H-K9L), UV Fused Silica (JGS 1), kapa Zinc Selenide substrate ka mefuta e fapaneng ea spectral. Li-filters tsa N-BK7 (CDGM H-K9L) li na le substrate ea khalase ea N-BK7 e nang le tšepe ea tšepe (Inconel) e behiloeng ka lehlakoreng le le leng, Inconel ke alloy ea tšepe e netefatsang karabo e bataletseng ea mahlaseli ho tloha ho UV ho ea haufi le IR; Li-filters tsa silika tse kopantsoeng tsa UV li na le substrate ea UVFS e nang le seaparo sa nickel se kentsoeng ka lehlakoreng le le leng, se fanang ka karabelo e sephara ea spectral; Lisefe tsa ZnSe tse sa jeleng paate li na le ZnSe substrate (tekanyo ea mahlo ho tloha ho 0.3 ho isa ho 3.0) e nang le "nickel coating" ka lehlakoreng le leng, e lebisang ho karabo e bataletseng ho feta 2 ho 16 µm wavelength, ka kopo bona kerafo e latelang bakeng sa litšupiso tsa hau.
Likaroloana:
Matla a Optical:
E tsoelang pele kapa Mohato ND
Likhetho tsa ho monya le tsa ho bonahatsa:
Mefuta e 'meli ea Li-filters tsa ND (Neutral Density) li Fumaneha
Likhetho tsa Sebopeho:
E chitja kapa e Sekwere
Likhetho tsa mofuta:
E sa palangoang kapa e phahamisitsoeng e teng
Litlhaloso Tse Tloaelehileng:
Mekhahlelo
Ranges & Tolerances
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Substrate Material
Monyetla: Schott (Absorptive) Glass / Reflective: CDGM H-K9L kapa tse ling
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Mofuta
Sesefa se sa nkeng lehlakore / se bonahatsang ho se nke lehlakore
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Mamello ea Dimension
+0.0/-0.2mm
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Botenya
± 0.2 limilimithara
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Bophatlalatsi
<2λ @ 632.8 nm
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Ho bapisa
<5 arcmin
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Chamfer
Tshireletso<0.5 mm x 45°
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OD Mamello
OD ± 10% @ design wavelength
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Boleng ba Bokaholimo (scratch-che)
80-50
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Aperture e Hlakileng
90%
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Ho roala
Monyetla: AR e koahetsoeng / e bonahatsang: Metako e bonahatsang ka tšepe
Kerafo
Mokokotlo oa phetisetso bakeng sa lifilthara tsa infrared tse sa nkeng lehlakore tse nang le tekano ea mahlo ho tloha ho 0.3 ho isa ho 3.0 (mokokotlo o moputsoa: ND 0.3, curve e tala: 1.0, curve ea lamunu: ND 2.0, curve e khubelu: ND 3.0), li-filters tsena li na le ZnSel substrate ho koahela ka lehlakoreng le leng holim'a leqhubu la maqhubu a 2 ho isa ho 16 µm. Bakeng sa tlhaiso-leseling e batsi ka mefuta e meng ea li-filters tsa ND, ka kopo ikopanye le rona.
