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Infrared Detector CaF2 Optical Windows High Transmittance From UV To IR

Basic Information
Place of Origin: Wuhan,China
Brand Name: Wuhan Siwer Optics
Minimum Order Quantity: 2 pieces
Price: 1-20USD/piece
Packaging Details: 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler
Delivery Time: 3-4 weeks
Payment Terms: T/T, Western Union
Supply Ability: 1000 pieces/month
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Detail Information
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

Product Description

 

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

 

Contact Details
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