Definition of Ritchey-Common test

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Edmund Optics - Manufacturing Services 8/24 LB

Photonics Dictionary

Ritchey-Common test: An interferometric method for describing the surface shape of large coated or uncoated optical flats. The procedure uses a commercially available small-aperture phase-shifting interferometer for measuring much larger flats. This represents a more cost-effective solution than constructing a custom interferometer with an aperture larger than the test sample.

Meadowlark Optics - Wave Plates 6/24 MR 2024

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