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Sapphire · Service

Sapphire Lapping, Honing and Polishing

I need an optical figure or angstrom-level finish on a hard material. Who laps and polishes it?

What it is

Rubbing the workpiece against a flat plate charged with diamond slurry to reach flatness and surface finish measured in wavelengths of light rather than thousandths of an inch. The route to optical transparency in a ceramic.

Suppliers

Suppliers 4

Companies that perform this process on customer material.

  • Insaco Inc. Verified
    Quakertown, PA · Service provider

    Precision polishing of sapphire to optical finish.

    source
  • PremaTech Advanced Ceramics Reported
    Worcester, MA · Service provider

    Ultra-hard material polishing capability; sapphire-specific experience not separately confirmed.

    source
  • Saint-Gobain Crystals Reported
    Hiram, OH · Mill Converter

    Sapphire grown from a single pure crystal and finished so light passes through. Polishing to optical figure is inherent to the product; the source describes the outcome rather than the process step.

    source
  • Valley Design Corp. Verified
    Shirley, MA · Service provider
    AS9100

    Lapping and polishing to optical figure, 1/10 wave flatness and 0.3 to 3 microinch Ra on polished ceramic. Parts from 0.127 mm square to 48 in diameter.

    source

Input material

Forms this process takes in.

Optical Window and DomeInput formCeramic ComponentInput form

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