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Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

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Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

Brand Name : Wuhan Siwer Optics

Place of Origin : Wuhan,China

MOQ : 2 pieces

Price : 1-20USD/piece

Payment Terms : T/T, Western Union

Supply Ability : 1000 pieces/month

Delivery Time : 3-4 weeks

Packaging Details : 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler

Material : calcium fluoride

Size tolerance : +/-0.1mm

Chamfer : 0.2-0.5mm

Surface quality : 60/40

Surface flatness : Lambda/4 in 25.4mm

Parallelism : 0.01mm

Standard coating : uncoated or customized

Size range : 3-200mm

Usage : Infrared detector

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Infrared Detector CaF2 widnows

Calcium Fluoride (CaF₂) is commonly used for optics looking at the IR and UV spectrums and has a very low change in refractive index with wavelength.

Our CaF2 window is selected by many flame detector manufacturers, and we keep long-term cooperation. According to the design requirements of each customer, we continuously supply windows of different specifications.

Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

Optical Properties of CaF2 Window

Material Calcium Fluoride
Diameter Tolerance +0.0/-0.1 mm
Thickness Tolerance ±0.1 mm
Parallelism 1 arc min
Surface Quality 60-40 Scratch-Dig
Surface Flatness
(Plano Side)		 λ/2 at 633nm
Surface Irregularity
(Peak to Valley)		 λ/2 at 633nm
Clear Aperture 90%

Calcium Fluoride properties

Chemical Formula CaF2
Crystal Class Cubic, cleaves [111] plane
Lattice Constant, Å 5.46
Density, g/cm3 (20 °C) 3.18
Molecular Weight 78.08
Reflection Loss 5.4% at 5 μm
Absorption Coefficient 7.8 x 10-4 cm-1 @ 2.7 μm
Dielectric Constant for 105 Hz 6.76
Melting Temperature, K 1630
Thermal Conductivity, W/(m K) at 273 K 10
Thermal Expansion, 1/K at 300 K 18.9 x 10-6
Specific Heat, cal/(g K) at 273 K 0.204
Debye Temperature, K 510
Young's Modulus, GPa 75.79
Rupture Modulus, GPa 0.0365
Shear Modulus, GPa 33.76
Bulk Modulus, GPa 83.03
Poisson's Ratio 0.28
Knoop Hardness, kg/mm2 178 [100], 160 [110]

Infrared Elements Selection Guide

Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

Production Process

Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR


Product Tags:

ir window

      

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