Calcium Fluoride (CaF2)
Plano-Convex Lenses
Plano-convex lo ntsiab muag xa me me kheej kheej distortion thaum tsom ntawm infinity (thaum cov duab duab nyob deb thiab qhov sib piv ntawm qhov siab).Yog li ntawd lawv yog cov mus-rau lens hauv koob yees duab thiab telescopes.Qhov kev ua tau zoo tshaj plaws yog ua tiav thaum lub ntiaj teb ntog ntsej muag lub dav hlau focal xav tau, hauv lwm lo lus, lub ntsej muag nkhaus ntsib qhov teeb meem sib tsoo.Plano convex lo ntsiab muag yog ib qho kev xaiv zoo rau lub teeb collimation los yog tsom rau daim ntawv thov siv monochromatic illumination, hauv kev lag luam xws li kev lag luam, tshuaj, neeg hlau, lossis kev tiv thaiv.Lawv yog cov kev xaiv pheej yig rau kev thov rau daim ntawv thov vim lawv yooj yim rau fabricate.Raws li txoj cai ntawm tus ntiv tes xoo, cov lo ntsiab muag plano-convex ua tau zoo thaum cov khoom thiab cov duab nyob ntawm qhov sib piv ntawm qhov sib piv> 5: 1 lossis < 1: 5, yog li qhov sib txawv ntawm qhov sib txawv, coma thiab distortion raug txo.Thaum qhov xav tau qhov kev nthuav dav yog nyob nruab nrab ntawm ob qhov tseem ceeb no, Bi-convex lo ntsiab muag feem ntau tsim nyog.
Vim nws cov kis tau tus mob siab ntawm 0.18 µm mus rau 8.0 μm, CaF2nthuav tawm qhov ntsuas qis qis ntawm qhov sib txawv ntawm 1.35 txog 1.51 thiab feem ntau yog siv rau cov ntawv thov uas xav tau kev sib kis loj hauv cov kab infrared thiab ultraviolet spectral ranges.Calcium fluoride kuj tseem muaj tshuaj lom neeg tsis zoo thiab muaj qhov nyuaj dua piv rau nws cov barium fluoride, thiab magnesium fluoride cov kwv tij.Paralight Optics muaj Calcium Fluoride (CaF2) Plano-convex lo ntsiab muag nrog antireflection txheej rau ob qho tib si 1.65 µm txog 3.0 µm lossis 2 µm txog 5 µm wavelength ntau yam.Cov txheej no zoo heev txo qhov nruab nrab qhov cuam tshuam ntawm cov substrate tsawg dua 1.25%, yielding qhov nruab nrab kis tau tus mob ntau dua 95% hla tag nrho AR txheej.Tshawb xyuas cov duab hauv qab no rau koj cov ntaub ntawv siv.
Nta:
Khoom siv:
Calcium Fluoride (CaF2)
Txheej Options:
Uncoated los yog nrog Antireflection Coatings
Focal Lengths:
Muaj los ntawm 20 mus rau 1000 mm
Daim ntawv thov:
Haum rau siv hauv Excimer Laser Applications, hauv Spectroscopy thiab Txias Thermal Imaging
Common Specifications:
Reference Drawing rau
Plano-convex (PCX) Lens
Dia: Dia
f: Focal Length
ff: Pem hauv ntej Focal Length
fb: Rov qab Focal Length
R: Radius
tc: Center Thickness
te: Ntug Thickness
H”: Rov Qab Tus Thawj Coj Dav Hlau
Lus Cim: Lub focal ntev yog txiav txim siab los ntawm lub dav hlau sab nraum qab, uas tsis tas yuav kab nrog ntug thickness.
Tsis muaj
Ntau Yam & Tolerances
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Cov khoom siv substrate
Calcium Fluoride (CaF2)
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Hom
Plano-Convex (PCV) Lens
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Index ntawm Refraction
1.428 @ Nd:Yag 1.064 μm
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Abbe Number (Vd)
95.31 ib
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Thermal Expansion Coefficient (CTE)
18.85 x 10-6/K (20 - 60 ℃)
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Txoj kab uas hla Tolerance
Precision: +0.00/-0.10mm |High Precision: +0.00/-0.03 hli
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Center Thickness kam rau ua
Precision: +/- 0.10 hli |High Precision: +/- 0.03 hli
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Focal Length kam rau ua
+/- 2%
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Surface Quality (Scratch-Dig)
Nqe: 80-50 |High Precision: 60-40
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Nto Flatness (Plano Sab)
hl/2
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Spherical Surface Power (Convex Sab)
3 hl/2
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Surface Irregularity (Peak rau Valley)
hl/2
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Qhov chaw
Qhov tseeb:<3 arcmin |High Precision:<1 arcmin
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Clear Aperture
> 90% ntawm txoj kab uas hla
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AR Txheej ntau yam
1.65 µm - 3.0 µm |2-5 μm
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Kev xa tawm dhau txheej txheej (@ 0 ° AOI)
Txav> 98% |Tus nqi> 95%
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Reflectance dhau txheej txheej (@ 0 ° AOI)
Ravg<1.25%
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Tsim Wavelength
588nm ua
Cov duab
♦ Transmission curve ntawm 10 mm tuab uncoated CaF2substrate: siab kis tau tus mob ntawm 0.18 µm mus rau 8.0 μm
♦ Transmission curve ntawm 2.2 hli nruab nrab tuab AR-coated CaF2Lens: Tavg> 98% dhau ntawm 1.65 µm - 3.0 μm ntau yam
♦ Kev sib kis nkhaus ntawm kev txhim kho AR-coated CaF2Lens: Tavg> 95% dhau ntawm 2 µm - 5 μm ntau yam
Transmission Curve ntawm 2.2 hli Center Thickness AR-coated (1.65 µm - 3.0 μm) CaF2Lens
