General Optics
Variable-Radius Mirrors
Improve CO₂ laser cutting efficiency with this optic that enables dynamic focus depth adjustment and compensation for focal length variations across the working table.
The Variable-Radius Mirror is a unique component that permits beam divergence to be adjusted on-the-fly by varying the optic's radius of curvature with water or air pressure. They can be supplied in a large range of custom configurations.
Variable-Radius Mirror (VRM) Capabilities
Coherent employs proprietary design techniques to accurately model VRM shape, predict how it will deform under pressure, and optimize it for a specific application.
Typical Copper VRM Specifications |
||
Pressurization Method |
Water |
Air |
Mirror Diameter |
57.1 mm |
79.0 mm |
Clear Aperture |
35 mm |
50 mm |
Radii range |
-6 m to 6 m 3 m to Plano Plano to 3 m 1.2 m to -1.6 m |
|
Pressurization Range |
3 to 12 bar |
0 to 12 bar |
Angle of Incidence |
Near normal |
45° |
Pointing Stability |
≤ 30 arc seconds |
|
Reflectivity |
> 99.8% @ 10.6µm |
|
Related Products
Optical Manufacturing Capabilities
Learn about the vertically integrated capabilities for material growth, fabrication, coating, and assembly, and rigorous QA at Coherent. Discover how these ensure the performance and reliability of our optics and minimize supply chain risks and uncertainties.
