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Precision Optics

Precision Optical Engineering

Key Features

  • Prisms (Contacted, Cemented, AR coated, Mounted)
  • Windows (Flat, wedged, curved, drilled, recessed, AR coated)
  • Flats and Master angles (Up to 500mm, coated, zero expansion materials, traceable).
  • Sights (Optical, borosilicate and soda glass, curved surfaces, thermally or chemically toughened, AR coated)


Gooch and Housego produces several types of prisms, which depending on the prism’s intended application can be classified as right angle, Porro, Abbe, Dove, Amici, Schmidt, Leman, Penta, Zeiss, Rhomboid, etc. Windows produced by Gooch and Housego are made of optical glass with ground and polished faces. The faces may be parallel, wedged or of a custom geometrical aspect. Windows are generally employed as a transparent interface between two physical environments, therefore window selection considerations include: material transmission, thickness, scattering, wave front distortion, parallelism and resistance to certain environments such as high temperature or pressure.

Optical flats are used to check the flatness of reflective surfaces in combination with a monochromatic light source. Gooch and Housego manufacture optical flats from Zerodur®, Pyrex, or customer specified material in sizes up to 500mm with flatness to λ/20.

Gooch and Housego also manufactures mirrors and sights to special requirements to the highest quality for a range of materials including customer specific traceable metallic or multilayer coatings.



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