Optical flat

Crystran Ltd are able to offer test flats manufactured in the UK. Single sided flats are polished on the second face to workshop standard. Double sided flats are to full specification both faces. All flats are tested in our QA department and certification traceable to UK National Physical Laboratory standard provided on all flats. ► Fused Quartz or Zerodur material ► Flatness of Lambda/4, Lambda/10 or Lambda/20 at 633nm ► 26mm to 302mm Ø with larger sizes on request ► Single sided or double sided ► Certificate supplied traced to N.P.L. reference ► Partial reflective coating supplied on request