high optical transmittance
CaF2 crystal has the following exceptional properties that makes it a very important optic crystal: (1) High optical transmittance from the vacuum ultraviolet to the infrared spectrum region(0.11-9μm). (2) Used for Optical prisms, lenses, wedges, windows, other optical components,and etc. Properties: Density | 3.18 g/cm3 | Melting Point | 1357~1360 | Lattice Constant | 5.46 Å | Hardness (Knoop) | 178 [100], 160 [110]kg/mm2 | Dielectric Constant | 6.76 ,105HZ | Crystal Type | cubic, CaF2 type structure | Cleavage Planes | (111) | | | | |
Refractive Index Wavelength, µm | 0.19 | 0.21 | 0.25 | 0.33 | 0.41 | 0.88 | 2.65 | 3.90 | 5.00 | 6.20 | 7.00 | 8.22 | Refractive Index | 1.51 | 1.49 | 1.47 | 1.45 | 1.44 | 1.43 | 1.42 | 1.41 | 1.40 | 1.38 | 1.36 | 1.34 |
CaF2 Specifications: We produce prisms, lenses, wedges, windows,wedges, and other optical components according to customers specifications and drawings. Size | Diameter up to 220mm (IR grade); Diameter up to 160mm (UV grade); | Inclusion | None visible | Dimension tolerance | ±0.1mm | Oriential tolerance | 1 arc minutes | Angle tolerance | 1 arc minutes | Scratch/Dig code | 10/5 to MIL-O-13830A | Parallelism | 6 arc seconds | Flatness | λ/20 @ 632.8nm |
|
|
CaF2
