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

Raoul F. van Ligten

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Light polarizing spectacle lens

Optical: systems and elements – Polarization without modulation
Patent

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Process for making a light polarizing spectacle lens

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent

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Progressive addition lens

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

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Progressive power ophthalmic lens having wide transition corrido

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

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Profile ID: LFUS-PAI-P-917779

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