Automated Polishing & Finishing

Janos has recently updated its polishing capabilities by adding one of the most advanced polishing and finishing machines in the industry. The QED Q22-Y magnetorheological finishing, or MRF, technology uses an abrasive fluid whose shape and stiffness can be controlled in real time by an electromagnet. The real-time control and fluid flow enables the users to maintain a constant, well-characterized, and fast removal rate without creating subsurface damage in the optic.

This technology allows for better than 10nm peak-to-valley optical surfaces, and RMS microroughness of less than 1.0nm. MRF technology has the ability to polish many different materials, including most optical glasses and single crystals such as calcium fluoride, making it ideal for polishing visible and Near-IR optics.

Additional Capabilities:



    • Work piece diameter range 10 – 254mm diameter
    • Raster tool path for expanded capabilities
    • Figure correction of diamond turned aspherical & spherical surfaces
    • Figure & Angle correction for plano surface windows, mirrors, prisms & wedges
    • Surface figure capability: 1/20 λ @ 0.6328µm depending on configuration of optic
    • Materials:

      AMTIR
      Barium Fluoride (BaF2)
      Calcium Fluoride (CaF2)
      Fused Silica (FS)
      Germanium (Ge)
      Glass
      Lithium Fluoride,
      Magnesium Fluoride (LiF)
      Pyrex
      Silicon (Si)
      Zerodur, & others upon request