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公开(公告)号：US20250053009A1
公开(公告)日：2025-02-13
申请号：US18718675
申请日：2022-12-16
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Matthew C. Traub , Marlon Edward Menezes , Yingnan Liu , Frank Y. Xu
IPC: G02B27/01
Abstract: A waveguide stack having color-selective regions on one or more waveguides. The color-selective regions are configured to absorb incident light of a first wavelength range in such a way as to reduce or prevent the incident light of the first wavelength range from coupling into a waveguide configured to transmit a light of a second wavelength range.
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公开(公告)号：US20250147222A1
公开(公告)日：2025-05-08
申请号：US19018967
申请日：2025-01-13
Applicant: Magic Leap, Inc.
Inventor： Matthew C. Traub , Yingnan Liu , Vikramjit Singh , Frank Y. Xu , Robert D. Tekolste , Qizhen Xue , Samarth Bhargava , Victor Kai Liu , Brandon Michael-James Born , Kevin Messer
Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.
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公开(公告)号：US20250044573A1
公开(公告)日：2025-02-06
申请号：US18717946
申请日：2022-12-16
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Matthew C. Traub , Frank Y. Xu
Abstract: An eyepiece includes an optical waveguide, a transmissive input coupler at a first end of the optical waveguide, an output coupler at a second end of the optical waveguide, and a polymeric color absorbing region along a portion of the optical waveguide between the transmissive input coupler and the output coupler. The transmissive input coupler is configured to couple incident visible light to the optical waveguide, and the color-absorbing region is configured to absorb a component of the visible light as the visible light propagates through the optical waveguide.
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