4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Hideaki Niwa

Inventor

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Liquid-crystal image director for single-lens-reflex camera

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Ophthalmic treatment apparatus

Surgery – Instruments – Light application
Reexamination Certificate

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Reading-out apparatus

Image analysis – Histogram processing – For setting a threshold
Patent

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Profile ID: LFUS-PAI-P-396832

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