High Accuracy

High Accuracy Window

CPG offer very high end windows. we have developed a test method to guarantee the surface flatness and surface quality.  

All the high accuracy windows from CPG optics were used as standard test plate or in astronomy, we are very proud to tell and provide the fabricating service for the customers.

  • Materials: Schott BK7/Fused Silica/ Zerodur etc.
  • Diameter range: 1-1500mm
  • Dimension tolerance: +/0.05mm
  • Thickness tolerance: +/-0.05
  • Parallelism: < 2"(may change for different types)
  • Surface quality: 10/5(may change for different types)
  • Coating: Upon request

 Large High Accuracy Window