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Calcium Fluoride Windows
LaboratoriesOptical Material Data – Calcium Fluoride Windows
Calcium Fluoride – CaF2
Optical Material used for lenses, windows, prisms, mirrors and filters transmitting from the vacuum ultraviolet into the infrared.
Windows are used to isolate different physical environments whilst allowing light to pass.
When selecting windows it is important to consider the following:
Materials
Transmission
Scattering
Wavefront Distortion
Parallelism
Resistance to certain environments
Material Specification:
Transmission Range – 0.13-12.0 µ
Crystal Structure – Fluorite
Cleavage Plane – 111
Colour – Colourless
Density -3.179 (25°)
Melting Point (°) – 1360
Reflection Loss – 5.6% (4µ) for 2 surfaces
Solubility Index – 0.0015gm/100gm water at 20 °C
Hardness (Knoop) – 158.3 (110) 158.3 (100)
Thermal Conductivity (Cal/cm sec°C) – 2.32×10-2 (36°C)
Thermal Expansion coefficient (/°C) -24×10-6/20-60°C
Calcium Flouride is also available doped with rare earths.
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Calcium, Fluoride, Windows, global, optics Product code: Calcium Fluoride