30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System
Brand Name:Wuhan Siwer Optics
Minimum Order Quantity:20 pieces
Delivery Time:5-7weeks
Payment Terms:T/T, Western Union
Place of Origin:Wuhan,China
Price:50 USD/piece
Contact Now
Add to Cart
Verified Supplier
Location:
Wuhan Hubei China
Address:
Building 7, No. 116, Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province
Supplier`s last login times:
within 26 hours
Product Details
Company Profile
Product Details
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.
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)
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
Infrared Elements Selection Guide
30° 60° 90° Right Angle Calcium Fluoride CaF2 Prisms For Medical And Optical System
Inquiry Cart
0