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Magnetoheological finishing (MRF)

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Magnetorheological finishing (MRF) is a patented deterministic lens surface finishing process that improves the 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.

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MRF polishing serviceFlats, spherical lenses and aspheres.
Materials Common glasses (CDGM, Hoya, Ohara, Schott, Sumita, etc.), fused silica, glass ceramics, calcium fluoride, silicon, germanium.
Size Up to 200 mm in diameter
Form figureUp to λ/50 P-V
Metrology Sub-aperture stitching interferometer (SSI®) to measure high numerical aperture, large clear aperture parts, transmitted wavefront testing.

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