Calcium fluoride (CaF2) material
Calcium fluoride (CaF₂) is a single-crystal material highly valued for its excellent optical properties, known in the field of precision optics for its broadband transparency and low dispersion.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter Tolerance | +0.0 mm, -0.1 mm |
| Thickness Tolerance | ±0.2 mm |
| Clear Aperture [Small Size] | >80 % (small size) |
| Clear Aperture [Large Size] | >90 % (large size) |
| Parallelism [General-purpose] | <1 ′ (general) |
| Parallelism [High Precision] | <10 ″ (high precision) |
| Surface Quality [General-purpose] | 80/50 (general) |
| Surface Quality [High Precision] | 40/20 (high precision) |
| Surface Figure [standard] | λ/2 (standard) |
| Surface Figure [High Precision] | λ/8 (High-Precision) |
| Coating | Coating available upon request |
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