Leverages material dispersion to separate spectral components based on wavelength. Ideal for spectroscopy and analytical instruments requiring high resolution and low stray light.
Diameter: 5 mm- 300 mm ±0.1 mm
Surface Accuracy: λ/ 8 @
Center Thickness Tolerance: ±0.05mm
Lens Alignment Error: ≤3min
The output line of a Powell lens features a vertex aspheric curvature, which provides a uniform energy distribution. In contrast, cylindrical lenses produce a Gaussian beam profile characterized by a hot-spot center and fading edges. The uniformity of the output line is also highly dependent on the incident wavelength, beam size, divergence, and working distance. To achieve a uniform energy distribution, the vertex curvature must be fine-tuned and optimized for the specific laser beam.
| Material | K9, BK7, ZnSe |
| Diameter | 5-300 mm |
| Dimensional tolerance | ±0.05 mm |
| Center Thickness Tolerance | ±0.05 mm |
| Angle Tolerance | <3 arc min |
| Surface Accuracy | λ/4@ 633nm or λ/10@633nm |
| Surface quality | 60/40 or 20/10 |
| Effective caliber | 90% |
| Chamfer/Beve | <0.2*45° |
| Coating | Customizable upon request: (AR /HR /PR) |
