BK7 Optical Window
BK7 windows feature low distortion, low scatter, and excellent parallelism, making them suitable for both laser and non-laser applications. These windows are ideal for use in imaging systems, laser systems, and various scientific instruments where minimal distortion and high transmission are critical.
Technical Specifications
Product Overview
High-Performance BK7 Optical Windows
These BK7 grade A optical windows are engineered for applications requiring excellent transmission across the visible spectrum. Manufactured with high homogeneity and low bubble content, they provide superior optical clarity and minimal distortion. Available in both standard and precision grades, these windows are ideal for imaging systems, laser applications, and scientific instrumentation.
Material & Physical Properties
- Material
- BK7 Grade A Optical Glass
- Bevel
- 0.25mm x 45deg
- Clear Aperture
- >85% of diameter
Tolerances
- Diameter Tolerance
- +0.0, -0.15mm
- Thickness Tolerance
- +/-0.2mm
Optical Performance
Performance Grades
| Metric | Standard | Precision |
|---|---|---|
| Parallelism | <1 arc minute | <10 arc seconds |
| Surface Quality | 60-40 scratch/dig | 40-20 scratch/dig |
| Flatness (@632.8nm) | lambda/4 per 25mm | lambda/10 per 25mm |
| Wavefront Distortion | lambda/4 per 25mm | lambda/10 per 25mm |
