CaF2 Optical Glass Windows
CaF2 optical glass windows
Product description:
CaF2 glass windows
| Attribute | Specification |
| Typical Diameter (Φmm) | 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0 |
| Typical Thickness (mm) | 1.0, 2.0, 3.0, 4.0 |
| Diameter Tolerance (mm) | +0.0/-0.2 (General), +0.0/-0.1 (High Precision) |
| Thickness Tolerance (mm) | ±0.2 (General), ±0.05 (High Precision) |
| Clear Aperture | >80% (Small Size), >90% (Large Size) |
| Parallelism | 3 min. (General), 10 sec. (High Precision) |
| Surface Quality | 80/50 (General), 40/20 (High Precision) |
| Flatness (per 25mm@633nm) | λ(General), λ/4 (High Precision) |
| Bevel (face width x 450) | <0.25mm |
| Coating | Uncoated, AR, HR, PR, Coating, etc. |
Note for CaF2 glass window:
(1). Custom-made CaF2 windows at any size are available.
Besides round, CaF2 windows at shape of quadrate, triangular, or other polygonal are available.
(2). Typical thickness is 2mm, 3mm, 4mm, other thickness from 1.0mm to 20.0 mm is available.
(3). Better bevel is available upon request.
(4). CaF2 Windows with Anti-Reflective(AR), High-Reflective(HR), Partial-Reflective(PR) coating are available.
Standard CaF2 Window series:
Diameter Tolerance: --------------------- +0.0, -0.1mm
Thickness Tolerance: -------------------- ±0.2mm
Clear Aperture: ---------------------------->80%
Parallelism: -----------------------------------1 arc minute
Surface Quality: ----------------------------80/50 scratch and dig
Wavefront Distortion: -------------------- l per 25mm @633mm
Bevel: -----------------------------------------<0.25mm x 45°
Coating: -------------------------------------- Uncoated
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