Caf2 Optica Viewport Windows Calcium Fluoride Crystal High Performance
Brand Name:Wuhan Siwer Optics
Minimum Order Quantity:5 pieces
Delivery Time:3-5 weeks
Payment Terms:T/T, Western Union
Place of Origin:Wuhan,China
Price:5-98USD/piece
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Location:
Wuhan Hubei China
Address:
Building 7, No. 116, Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province
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within 26 hours
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Calcium Fluoride Crystal High performance Caf2 optica viewport windows
Calcium fluoride shows good optical and thermo-mechanical properties. It is widely used as optical windows, lenses and prisms in 0.13μm~9.0μm. For its optical isotropy, low absorption and low refractive index. CaF2 has found unique advantages in high power laser and UV laser optics.
Calcium Fluoride crystal shows good optical and thermo-mechanical
properties, can be used for optical windows, lenses, prisms within
a wide range from 130nm to 9μm. It has optical properties of
isotropy, low absorption and low refractive index, which made CaF2
gain the unique advantages in the application of high power lasers.
Scitlion is able to offer
CaF2 IR viewport Windows for Infrared Thermography at 8μm to 10μm
Various optics for IR & VUV application, using our CaF2 crystal
materials
Good quality CaF2 crystal blank materials
OEM service for good quality CaF2 crystals
Orientation:<100>,<110>, <111>
Optical Properties of Sapphire 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
Production process
Caf2 Optica Viewport Windows Calcium Fluoride Crystal High Performance
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