4. Optics: measuring and testing
  5. Refraction testing

David R. Fladd

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Apparatus and process for detecting inclusions

Optics: measuring and testing – Inspection of flaws or impurities – Transparent or translucent material
Reexamination Certificate

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Device for comparing the refractive indices of an optical immers

Optics: measuring and testing – Refraction testing
Patent

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Methods for detecting inhomogeneities, specifically, striae, inf

Optics: measuring and testing – Material strain analysis – By light interference detector
Patent

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Profile ID: LFUS-PAI-P-1155965

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