4. Optics: measuring and testing
  5. By polarized light examination
  6. With light attenuation

Guowen Lu

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Optical phase-shift triangulation technique (PST) for non-contac

Optics: measuring and testing – By polarized light examination – With light attenuation
Patent

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Portable real-time high-resolution digital phase-stepping...

Optics: measuring and testing – By light interference – Having shearing
Reexamination Certificate

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