Single Point Diamond Turning

PO.GP (2)

We use single-point diamond turning (SPDT) to produce ultra precision infrared optical components such as infrared aspheric, diffractive and spherical optics and gratings. The process of mechanical machining infrared optical components using lathes equipped with diamond tipped tools enables us to manufacture crystal based optical products with a greater degree of precision than otherwise possible with standard machining techniques.

Characteristics
Configurations
  • High performance rotationally symmetrical with raster correction for high precision optics such as IR spherical lenses, aspheres, binary diffractive lenses (plano, spherical, aspherical diffractive), Fresnel lenses, hybrid lenses, mirrors.
Material
  • Calcium fluoride (CaF2), chalcogenide glass (gallium arsenide), germanium, silicon, zinc selenide, zinc sulphide, multi-spectral zinc sulphide (CLEARTRAN™) and other materials on request. Refer to materials table for further details.
Sizes
  • Diameter range from 8.0-250.0 mm
Surface form error
  • ?0.25 µm P-V (depending on material and configuration)

For more information on our specialist infrared precision optics and how our SPDT capabilities can work for you please contact us.