Magic Leap. has been granted a patent for a method of manufacturing an optical system that involves forming a waveguide with recesses filled with a solid porogen material. This material decomposes to create an optical gas, enhancing light transmission through the system by maximizing refractive index differences. GlobalData’s report on Magic Leap 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 Magic Leap, Smart glasses was a key innovation area identified from patents. Magic Leap's grant share as of June 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Optical system manufacturing using waveguides and porogen materials
The granted patent US12044851B2 outlines a method for manufacturing an optical system that incorporates a waveguide, a solid porogen material, and a cap layer. The process involves forming a stack that includes these components and subsequently replacing the porogen material with an optical gas, which secures the cap layer to the waveguide. The waveguide is constructed from a high-index transparent material, while the cap layer is made from a select transparent material. This configuration creates a cavity filled with optical gas, allowing ambient light to transmit through the various layers, enhancing the optical performance of the system.
The claims further detail specific characteristics of the materials used, such as the refractive indices of the high-index materials, which must be at least 1.74, and the optical gas, which can be air with a refractive index of 1. The method also describes the removal of the porogen material through heating, leading to the formation of cavities that can be designed with various geometries, including recesses and raised formations. Additionally, the patent specifies the use of anti-reflective materials in the cap layers to improve light absorption and reduce reflection at the waveguide's surface. The optical system can include multiple cap layers with varying refractive indices, enhancing its functionality in transmitting ambient light effectively.
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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.
