Zinc Selenide (ZnSe)
Lilense tsa Bi-Concave
Ha u etsa qeto pakeng tsa lense ea plano-concave le lense ea bi-concave, tseo ka bobeli li etsang hore leseli la ketsahalo le fapohe, hangata ho loketse haholo ho khetha lense ea bi-concave haeba tekanyo e felletseng ea conjugate (sebaka sa ntho e arotsoe ke sebaka sa setšoantšo) e haufi le 1. Ha kholo e lakatsehang e le ka tlase ho 0.2 kapa e kholo ho feta 5, tloaelo ke ho khetha lense ea plano-concave.
Lilense tsa ZnSe li loketse haholo ho sebelisoa ka li-lasers tsa CO2 tse matla haholo. Paralight Optics e fana ka Lilense tsa Zinc Selenide (ZnSe) Bi-Concave kapa Double-Concave (DCV) tse fumanehang ka sekontiri se sephara sa AR se lokiselitsoeng sebaka sa 8 - 12 μm sa spectral se kentsoeng libakeng tseo ka bobeli. Ho roala hona ho fokotsa haholo ponahalo e phahameng ea bokaholimo, ho fana ka phetiso e tloaelehileng e fetang 97% ho pholletsa le mefuta eohle ea AR. Bakeng sa tlhaiso-leseling e batsi ka li-coatings, ka kopo sheba li-graph tse latelang bakeng sa litšupiso tsa hau.
Likaroloana:
Boitsebiso:
Zinc Selenide (ZnSe)
Likhetho tsa ho Koahela:
E fumaneha e sa Koaheloa kapa e nang le Antireflection Coatings
Bolelele ba Tsepamiso
E fumaneha ho tloha -25.4mm ho ea ho -200 mm
Lisebelisoa:
E loketse CO2 Lits'ebetso tsa Laser ka lebaka la Monyetla o tlase oa ho monya
Litlhaloso Tse Tloaelehileng:
Reference Drawing bakeng sa
Lense ea Double-Concave (DCV)
f: Bolelele ba Tsepamiso
fb: Back Focal Length
ff: Bolelele ba Focal Length
R: Radius ea Curvature
tc: Botenya ba Bohareng
te: Botenya ba moeli
H”: Sefofane se ka Morao
Tlhokomeliso: Bolelele ba ho tsepamisa maikutlo bo lekantsoe ho tloha sefofaneng se ka morao, se sa hlokeng hore se tsamaisane le botenya ba moeli.
Mekhahlelo
Ranges & Tolerances
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Substrate Material
Laser-Grade Zinc Selenide (ZnSe)
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Mofuta
Lense ea Double-Convave (DCV)
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Index ea Refraction
2.403 @ 10.6μm
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Nomoro ea Abbe (Vd)
Ha e hlalosoe
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Thermal Expansion Coefficient (CTE)
7.1x10-6/℃ ho 273K
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Mamello ea Diameter
Presicion: +0.00/-0.10mm | Precison e Phahameng: +0.00/-0.02mm
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Botenya Mamello
Presicion: +/-0.10 limilimithara | Precison e Phahameng: +/-0.02 mm
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Mamello ea Bolelele ba Tsepamiso
+/- 1%
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Boleng ba Bokaholimo (scratch-che)
Boemo: 60-40 | Boemo bo phahameng: 40-20
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Spherical Surface Power
3 λ/4
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Irregularity ea holim'a metsi (Peak to Valley)
λ/4 @633 nm
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Setsi
Precison:<3 arcmin | Bonepe bo Phahameng<30 arcsec
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Aperture e Hlakileng
80% ea Diameter
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AR Coating Range
8 - 12 μm
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Ponahatso holim'a Mekhahlelo ea Coating (@ 0° AOI)
Ravg<1.0%, Rabs<2.0%
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Phetiso ea Coating Range (@ 0° AOI)
Tavg > 97%, Lithebo> 92%
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Moqapi oa Wavelength
10.6 μm
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Sekhahla sa Tšenyo ea Laser
5 J/cm2(100 ns, 1 Hz, @10.6μm)
Kerafo
♦ Mokokotlo oa phetisetso oa botenya ba 5 mm, substrate e sa koaeloang ea ZnSe: phetiso e phahameng ho tloha ho 0.16 ho ea ho 16 μm
♦ Mokokotlo oa phetisetso oa 5 mm AR-coated ZnSe substrate: Tavg > 97% ho feta 8 - 12 μm
