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公开(公告)号：US20250085549A1
公开(公告)日：2025-03-13
申请号：US18811937
申请日：2024-08-22
Applicant: Applied Materials, Inc.
Inventor： Kunal SHASTRI , Sheng YUAN , Paul GALLAGHER , Gauthier BRIERE , Samarth BHARGAVA , Robert Jan VISSER
Abstract: Implementations of the present disclosure relate to apparatus, systems, and methods of a compact, high numerical aperture light engine, for example thin optics-based light engine systems using meta-surfaces for wearable displays. One implementation includes an optical device. The optical device includes one or more spatial light modulators, wherein each spatial light modulator is an array of pixels that are individually controllable to output visible light. The optical device also includes a surface defining an exit pupil that is arranged to allow the output visible light to exit the optical device via the exit pupil. The optical device also includes one or more metasurfaces disposed between the one or more spatial light modulators and the exit pupil. The one or more metasurfaces are to focus the visible light that is output by the one or more spatial light modulators.
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公开(公告)号：US20250022234A1
公开(公告)日：2025-01-16
申请号：US18769595
申请日：2024-07-11
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , David Alexander SELL , Kunal SHASTRI , Sihui HE , Kevin MESSER , Samarth BHARGAVA
Abstract: The present disclosure relates to augmented reality devices and related methods. In one or more embodiments, an augmented reality device includes a projection system and a waveguide. The projection system includes a projector and a prism. The projector projects an image along the projectors major axis. The prism refracts the image having a first spectrum, a second spectrum, and a third spectrum. The waveguide is disposed at a wrap angle from a plane formed from the major axis of the projector. The waveguide includes an input coupler and an output coupler. The input coupler includes input structures at an input period and an input orientation and the input coupler is configured to receive the spectrums at different corresponding input angles. The output coupler includes output structures at an output period and an output orientation and the output coupler out couples the respective spectrums at an about equal output angle.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20250093573A1
公开(公告)日：2025-03-20
申请号：US18885271
申请日：2024-09-13
Applicant: Applied Materials, Inc.
Inventor： Simon LORENZO , Evan WANG , Kunal SHASTRI , Samarth BHARGAVA
Abstract: A method and apparatus for a device including a first waveguide, the first waveguide having a first input coupler operable to receive a first color light and in-couple the first color light into the first waveguide, and a coating area adjacent to a grating of the first input coupler, the coating area operable to receive a second color light, the coating area having an anti-reflective coating with a transmission refractive index such that in operation the second color light is transmitted through the first waveguide to a second waveguide, the second waveguide below the first waveguide, the second waveguide having a second input coupler disposed below and aligned with the coating area, the second input coupler operable to receive the second color light and in-couple the second color light into the second waveguide.
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4.发明申请公开(公告)号：US20250012961A1
公开(公告)日：2025-01-09
申请号：US18747844
申请日：2024-06-19
Applicant: Applied Materials, Inc.
Inventor： Evan WANG , Kunal SHASTRI , David Alexander SELL , Kevin MESSER , Samarth BHARGAVA
Abstract: A waveguide is disclosed. The waveguide includes one or more gratings disposed over a substrate. The gratings include grating structures having a grating pitch. The waveguide includes a waveguide region disposed over the substrate between each grating and an edge of the substrate. The waveguide region includes auxiliary structures with an auxiliary pitch less than the grating pitch.
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公开(公告)号：US20250046026A1
公开(公告)日：2025-02-06
申请号：US18793389
申请日：2024-08-02
Applicant: Applied Materials, Inc.
Inventor： David Alexander SELL , Sihui HE , Kevin MESSER , Kunal SHASTRI , Jinxin FU , Samarth BHARGAVA
Abstract: The present disclosure relates to augmented reality devices and related methods. The augmented reality devices include a projection system. The projection system includes a projector including a major axis. The projected is configured to project an image along the major axis. A prism is configured to refract the image. The image includes a first spectrum, a second spectrum, and a third spectrum. A waveguide is disposed at a wrap angle from a plane formed from the major axis of the projector. The waveguide includes an input coupler, and an output coupler.
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公开(公告)号：US20250012960A1
公开(公告)日：2025-01-09
申请号：US18746195
申请日：2024-06-18
Applicant: Applied Materials, Inc.
Inventor： Kunal SHASTRI , Evan WANG , Simon LORENZO , David Alexander SELL , Kevin MESSER , Samarth BHARGAVA
Abstract: Embodiments of the disclosure provided herein include waveguide combiners. More specifically, embodiments described herein provide for waveguide combiners with a waveguide layer and a coating having a tapered portion disposed thereover. The waveguide includes one or more gratings, the one or more gratings including a plurality of grating structures disposed over a waveguide substrate, wherein the grating structures include a waveguide material, and the plurality of grating structures include exterior grating structures at outer edges of the one or more gratings. A waveguide layer is disposed over the waveguide substrate between the exterior grating structures and an edge of the waveguide substrate, the waveguide layer including the waveguide material, and a coating disposed over the waveguide layer, the coating having a tapered portion that is tapered from at least one of the exterior grating structures to a planar portion of the coating.
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公开(公告)号：US20240361525A1
公开(公告)日：2024-10-31
申请号：US18647537
申请日：2024-04-26
Applicant: Applied Materials, Inc.
Inventor： Kunal SHASTRI , David Alexander SELL
CPC classification number: G02B6/1228 , G02B5/1823 , G02B2006/12107
Abstract: Embodiments described provide for waveguide combiners with phase matching regions. The waveguide includes one or more gratings. The one or more gratings includes grating structures disposed over a waveguide substrate. A phase matching region is disposed over the waveguide substrate between the one or more gratings and a waveguide region. The phase matching region includes a waveguide layer having a thickness varying from a first end to a second end of the waveguide layer, or a plurality of structures having depths therebetween. The one or more of the depths are different from each other, or at least two or more structures of the plurality of structures have a first duty cycle different than a second duty cycle of the plurality of structures.
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