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Photonics Buyers' Guide / Ronchi Gratings
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Ronchi Gratings

A ronchi grating is a transparent plate ruled with black lines and equal, clear spaces. It is used as a multiple knife-edge for testing a concave mirror.


The Photonics Buyers' Guide is a comprehensive resource for verified providers of Ronchi Gratings. Profiles and contact information for manufacturers and suppliers are provided by the companies and verified by our editors. If you have updated information about any of the organizations listed, please contact us.
Glossary
  • Ronchi grating A transparent plate ruled with black lines and equal, clear spaces. It is used as a multiple knife-edge for testing a concave mirror.
  • Foucault knife-edge test The Foucault test is performed by moving a knife edge laterally into the image of a small point source. The eye, or a camera, is placed immediately behind the knife edge, and the exit pupil of the system is observed.  
nonspherical mirrorsFoucault knife-edge testcurved shadowscurved linesrulingsstraight shadowsgratings ronchiFoucault testoptics
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