GREYWALL INC
Summary
Optical Testing, Surface Roughness Testing, Wavefront Testing, Optical Reference Calibration, Transmission Flat Calibration, Transmission Sphere Calibration, Interferometer Calibration, Interferometer Measurement, Radius of Curvature Measurement, Spherical Surface Testing, Measurement, Flatness Testing, Flat Surface Testing, Optical Measurement, Optical Metrology, Interferometry, Transmission Sphere Certification, Transmission Flat Certification, Reference Calibration, Reference Certification
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Description
Greywall Incorporated, dba Absolute Metrology Services, supplies interferometric and optical testing services. We are able to test transmitted wavefront error, surface flatness, spherical surface error, radius of curvature, and surface roughness. We perform optical certifications of flat and spherical surfaces, including transmission flat certifications and transmission sphere certifications, accurate to 1/200th wave. We perform interferometer calibrations. We provide third-party optical testing services to settle customer-supplier disputes.
