Magnetorheological Finishing (MRF)Â is a deterministic lens surface finishing process which G&H uses to improve form finish of precision optical components. This technique enables us to control optical polishing with a greater degree of precision than conventional lap polishing. These complement existing polishing capabilities for surface correction when enhanced precision is required to produce complex optics.
| Characteristics | |
| MRF polishing service | Flats, spherical lenses and aspheres |
| Material | Common glasses (Schott, Ohara, Hoya, Sumita, CDGM, etc.), fused silica, glass ceramics, calcium fluoride, silicon, germanium. Refer to materials table for further details. |
| Sizes | Up to 200 mm in diameter |
| Form figure | Up to λ/50 P-V |
| Metrology | Sub-aperture stitching interferometer (SSI) to measure high numerical aperture, large clear aperture parts, transmitted wavefront testing. |
For more information on how our MRF capabilities can work for you please contact us.