EssilorLuxottica has patented a method for determining the transmittance of contact lenses by measuring reflected and transmitted electromagnetic radiation through direct contact with the ocular surface. The method involves intensity measurements and calculations to determine transmittance accurately. GlobalData’s report on EssilorLuxottica gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on EssilorLuxottica, Opthalmic lenses 3D Printing was a key innovation area identified from patents. EssilorLuxottica's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Method for determining transmittance of contact lens through ocular surface
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A recently granted patent (Publication Number: US11885706B2) discloses a method for determining the transmittance of electromagnetic radiation through a contact lens in direct contact with an ocular surface. The method involves measuring the intensity of radiation reflected by the ocular surface, positioning the contact lens over the ocular surface, measuring the intensity of radiation transmitted through the contact lens, and calculating the transmittance using these measurements. The method also includes compensating for changes in intensity over time and utilizing specific wavelength ranges for measurement.
Furthermore, the patent details additional steps such as determining dark current intensity, measuring radiation at secondary locations, applying filters to the intensity measuring device, and selecting specific wavelength ranges for measurement. The method is applicable to various types of contact lenses, including photochromic and tinted lenses, and involves exposing the lenses to actinic radiation to achieve desired levels of activation. The patent also covers the use of imaging devices to record intensity data and the conversion of measurements to CIE XYZ values for determining transmittance. Overall, the method provides a comprehensive approach to accurately assess the transmittance of electromagnetic radiation through contact lenses in direct contact with the ocular surface, offering potential advancements in the field of ophthalmic research and development.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
