Tools for Aspheres & Free Form Lenses

Aspheres can be generated in various ways. In precision optics, it is common to first create a sphere in best-fit radius before processing them with grinding wheels or ball tools.

Aspheres can be generated in various ways. In precision optics, it is common to first create a sphere in best-fit radius before processing them with grinding wheels or ball tools.

We have developed a special hybrid bond for this application. It’s composition combines the benefits of metal bonded tools (cutting performance, endurance and good cooling properties) and resin bonded tooling (homogeneous scratch-free surfaces, very low sub surface damage, optically measurable after grinding, reduced polishing times).

Our tools are characterized by very good cutting properties with extremely low sub surface damage. Consequently, it is possible to already measure such complex shapes interferometrically after the grinding process. This means that corrections can take place early on, which reduces polishing times and keeps shape errors as low as possible.

By using our tools, you are technologically on the cutting-edge and benefit from continued development.

Benefits of dopa tools for aspheres

• Benefits of metal-bound tools and synthetic-bound tools
• Homogeneous scratch-free surfaces
• Optically measurable after grinding
• Reduced polishing times
• Low subsurface damage
• Reduction of frequency errors