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1.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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2.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：US20240295693A1
公开(公告)日：2024-09-05
申请号：US18629636
申请日：2024-04-08
Applicant: Applied Materials, Inc.
Inventor： Yingdong LUO , Zhengping YAO , Daihua ZHANG , David Alexander SELL , Jingyi YANG , Xiaopei DENG , Kevin MESSER , Samarth BHARGAVA , Rami HOURANI , Ludovic GODET
CPC classification number: G02B6/1228 , G02B6/12004 , G02B6/124 , G02B6/13 , G02B27/0081
Abstract: Embodiments of the present disclosure generally relate to methods for forming a waveguide. Methods may include measuring a waveguide substrate, the waveguide having a substrate thickness distribution; and depositing an index-matched layer onto a surface of the waveguide, the index-matched layer having a first surface disposed on the waveguide substrate and a second surface opposing the first surface, wherein the index-matched layer is disposed only over a portion of the waveguide substrate, and a device slope of a second surface of the index-matched layer is substantially the same as the waveguide slope of the first surface of the waveguide.
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公开(公告)号：US20240142699A1
公开(公告)日：2024-05-02
申请号：US18496574
申请日：2023-10-27
Applicant: Applied Materials, Inc.
Inventor： Kevin MESSER , David Alexander SELL , Samarth BHARGAVA
CPC classification number: G02B6/1223 , G02B6/12007 , G02B2006/12107 , G02B2207/101
Abstract: Embodiments of the present disclosure generally relate to augmented reality waveguide combiners. The waveguides includes a waveguide substrate, having a substrate refractive index (RI) nsub, a slab waveguide layer disposed over the waveguide substrate, the slab waveguide layer having a slab RI nswg and a slab depth dswg, the slab depth dswg from a lower surface to an upper surface of the slab waveguide layer, at least one grating defined by a plurality of grating structures, the grating structures are disposed in, on, or over the slab waveguide layer, and a superstrate between and over the grating structures, the superstrate having a superstrate RI nsuperstrate and an interface with the slab waveguide layer. The slab RI nswg is greater than the substrate RI nsub and the slab RI nswg is greater than the superstrate RI nsuperstrate.
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公开(公告)号：US20250093657A1
公开(公告)日：2025-03-20
申请号：US18883836
申请日：2024-09-12
Applicant: Applied Materials, Inc.
Inventor： Simon LORENZO , Evan WANG , Kevin MESSER , Samarth BHARGAVA
IPC: G02B27/01
Abstract: Embodiments herein are generally directed to a waveguide display assembly and a near-eye display system incorporating the waveguide display assembly. In an embodiment, the waveguide display includes a light engine, a waveguide combiner, an input coupling grating, and one or more coupling gratings exposed to an ambient environment of the waveguide display assembly. The waveguide combiner extends across a user's eye at a wrap angle θwrap(xy) relative to a waveguide plane, and the light engine is configured to project light toward the input coupling grating at a compensation angle θCl so as to increase the grating vector of the exposed gratings and reduce the angles and wavelengths at which light can be diffracted and coupled by the exposed grating into the waveguide combiner to the user's eye.
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Patent Agency Ranking
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：US20230333466A1
公开(公告)日：2023-10-19
申请号：US18337289
申请日：2023-06-19
Applicant: Applied Materials, Inc.
Inventor： David Alexander SELL , Samarth BHARGAVA
CPC classification number: G03F7/0005 , G02B25/001
Abstract: Embodiments of the present disclosure generally relate to methods of forming a substrate having a target thickness distribution at one or more eyepiece areas across a substrate. The substrate includes eyepiece areas corresponding to areas where optical device eyepieces are to be formed on the substrate. Each eyepiece area includes a target thickness distribution. A base substrate thickness distribution of a base substrate is measured such that a target thickness change can be determined. The methods described herein are utilized along with the target thickness change to form a substrate with the target thickness distribution.
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公开(公告)号：US20230117647A1
公开(公告)日：2023-04-20
申请号：US17949292
申请日：2022-09-21
Applicant: Applied Materials, Inc.
Inventor： Kevin MESSER , David SELL , Samarth BHARGAVA
Abstract: A rainbow-free waveguide display, a near-eye display incorporating the rainbow-free waveguide, and methods of manufacturing the rainbow-free waveguide are provided. The display includes a waveguide display configured to direct image light to an eyebox plane having a length (LEyebox) and to a user's eye. The waveguide display includes a waveguide combiner and an out-coupler grating, wherein the out-coupler grating has a grating period ΛOC such that all angles of incidence θin of light from an external light source, result in diffracted angles θout, that miss the user's eye.
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公开(公告)号：US20240337789A1
公开(公告)日：2024-10-10
申请号：US18750069
申请日：2024-06-21
Applicant: Applied Materials, Inc.
Inventor： Kevin MESSER , David Alexander SELL , Samarth BHARGAVA
CPC classification number: G02B6/1223 , G02B6/12007 , G02B2006/12107 , G02B2207/101
Abstract: Embodiments of the present disclosure generally relate to augmented reality waveguide combiners. The waveguides includes a waveguide substrate, having a substrate refractive index (RI) nsub, a slab waveguide layer disposed over the waveguide substrate, the slab waveguide layer having a slab RI nswg and a slab depth dswg, the slab depth dswg from a lower surface to an upper surface of the slab waveguide layer, at least one grating defined by a plurality of grating structures, the grating structures are disposed in, on, or over the slab waveguide layer, and a superstrate between and over the grating structures, the superstrate having a superstrate RI nsuperstrate and an interface with the slab waveguide layer. The slab RI nswg is greater than the substrate RI nsub and the slab RI nswg is greater than the superstrate RI nsuperstrate.
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公开(公告)号：US20240126012A1
公开(公告)日：2024-04-18
申请号：US18381604
申请日：2023-10-18
Applicant: Applied Materials, Inc.
Inventor： Yingdong LUO , Zhengping YAO , Daihua ZHANG , David Alexander SELL , Jingyi YANG , Xiaopei DENG , Kevin MESSER , Samarth BHARGAVA , Rami HOURANI , Ludovic GODET
CPC classification number: G02B6/1228 , G02B6/12004 , G02B6/124 , G02B6/13 , G02B27/0081
Abstract: Embodiments of the present disclosure generally relate to methods for forming a waveguide. Methods may include measuring a waveguide substrate, the waveguide having a substrate thickness distribution; and depositing an index-matched layer onto a surface of the waveguide, the index-matched layer having a first surface disposed on the waveguide substrate and a second surface opposing the first surface, wherein the index-matched layer is disposed only over a portion of the waveguide substrate, and a device slope of a second surface of the index-matched layer is substantially the same as the waveguide slope of the first surface of the waveguide.
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