4. Surgery
  5. Instruments
  6. Light application

Xiaofeng Han

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Astigmatism correcting optical coupler

Optical waveguides – With optical coupler
Reexamination Certificate

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Birefringent Mach-Zehnder interferometer

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

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Compound astigmatic myopia or hyperopia correction by laser abla

Surgery – Instruments – Light application
Patent

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Eye illumination system and method

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent

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Eye illumination system and method

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1019934

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