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Optical Lens For Correcting Color Vision - EP3685219
The patent EP3685219 was granted to Essilor on Nov 22, 2023. The application was originally filed on Sep 19, 2018 under application number EP18773742A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
EP3685219
- Application Number
- EP18773742A
- Filing Date
- Sep 19, 2018
- Status
- Granted And Under Opposition
- Oct 20, 2023
- Publication Date
- Nov 22, 2023
- External Links
- Slate, Register, Google Patents
Patent Summary
Optical lens for correcting color vision deficiency through selective transmission characteristics, particularly for individuals with color vision deficiency. The lens comprises a selective filter, like an absorptive magenta dye, which is able to cut in the green of the visible spectrum. The filter is combined with a color-balancing component to partially offset the pinky appearance of the lens. The lens achieves a transmission curve characteristic of 8-18% in the visible spectrum, with a specific transmission curve that optimizes color perception while maintaining cosmetically acceptable appearance.
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Patent Citations (35) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
Dossier Documents
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