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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

Name: 30 60 90 Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System
Brand: Wuhan Siwer Optics
Price: 50 USD

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

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

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

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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