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30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

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Wuhan Siwer Optics Co.,Ltd
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30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

Brand Name : Wuhan Siwer Optics

Place of Origin : Wuhan,China

MOQ : 20 pieces

Price : 50 USD/piece

Payment Terms : T/T, Western Union

Supply Ability : 500 pieces/month

Delivery Time : 5-7weeks

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

Angle tolerance : 3 arc min

Standard coating : Customized

Size range : 5-150mm

Usage : Infared system

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Calcium Fluoride (CaF2) Prims

Calcium Fluoride is superior to UV Fused Silica in deep UV applications. It has a transmission greater than 75% between 0.15-9µm and transmits efficiently up to about 8µm transmitting over 90%. Calcium Fluoride has a hardness of HK158, which is approximately twice as hard as BaF₂. Calcium Fluoride is not readily degraded under normal atmospheric conditions until 600°C when it starts to soften. In dry conditions Calcium Fluoride has a maximum operating temperature of 800°C. Calcium fluoride can be vulnerable to thermal shock at high temperatures. When calcium fluoride powder is compressed in moulds the resulting material is called Irtran-3.

30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System 30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

Optical Properties of CaF2 Prisms

Material Calcium Fluoride
AR Coating Range 0.15-9um
Diameter Tolerance +0.0/-0.1 mm
Thickness Tolerance ±0.1 mm
Surface Quality 60-40 Scratch-Dig
Surface Flatness
(Plano Side)		 λ/2 at 633nm
Surface Irregularity
(Peak to Valley)		 λ/4 at 633nm
Angle tolerance 3 arcmin (5 seconds according to customer requirements)


Transmittance of CaF2 window(T=2mm)

30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

CaF2 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]

Production Line

30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System

Infrared Elements Selection Guide

30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System



Product Tags:

optical wedge prism

      

ir prism

      
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