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公开(公告)号：US20240329408A1
公开(公告)日：2024-10-03
申请号：US18740215
申请日：2024-06-11
Applicant: Magic Leap, Inc.
Inventor： Kristina Uhlendorf , Kevin Richard Curtis , Kirk William Cook , Ravi Kumar Komanduri
CPC classification number: G02B27/0172 , G02B6/4213 , G02B2027/0178
Abstract: An image projection system includes an illumination source and an eyepiece waveguide including a plurality of diffractive incoupling optical elements. The eyepiece waveguide includes a region operable to transmit light from the illumination source. The image projection system also includes a first optical element including a reflective polarizer, a second optical element including a partial reflector, a first quarter waveplate disposed between the first optical element and the second optical element, a reflective spatial light modulator, and a second quarter waveplate disposed between the second optical element and the reflective spatial light modulator.
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公开(公告)号：US20240255796A1
公开(公告)日：2024-08-01
申请号：US18601808
申请日：2024-03-11
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri , Roy Matthew Patterson , Charles Scott Carden , Michael Nevin Miller , Vikramjit Singh
IPC: G02F1/1335 , G02B1/00 , G02B5/18 , G02B5/30 , G02B6/12 , G02B6/122 , G02B27/01 , G02F1/1337 , G06T19/00 , G06V20/20 , G09G3/00 , G09G5/00 , G09G5/14
CPC classification number: G02F1/133526 , G02B1/00 , G02B5/1833 , G02B5/30 , G02B6/12 , G02B6/122 , G02B27/0172 , G02F1/133528 , G02F1/1337 , G06T19/006 , G06V20/20 , G09G3/002 , G09G3/003 , G09G5/00 , G09G5/14
Abstract: A display device comprises a waveguide configured to guide light in a lateral direction parallel to an output surface of the waveguide. The waveguide is further configured to outcouple the guided light through the output surface. The display device additionally comprises a broadband adaptive lens assembly configured to incouple and to diffract therethrough the outcoupled light from the waveguide. The broadband adaptive lens assembly comprises a first waveplate lens comprising a liquid crystal (LC) layer arranged such that the waveplate lens has birefringence (Δn) that varies in a radially outward direction from a central region of the first waveplate lens and configured to diffract the outcoupled light at a diffraction efficiency greater than 90% within a wavelength range including at least 450 nm to 630 nm. The broadband adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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3.发明公开公开(公告)号：US20240248313A1
公开(公告)日：2024-07-25
申请号：US18624795
申请日：2024-04-02
Applicant: Magic Leap, Inc.
Inventor： Ravi Kumar Komanduri , Chulwoo Oh
IPC: G02B27/01 , C12Q1/6844 , G02F1/1335 , G02F1/13363 , G06T19/00
CPC classification number: G02B27/0172 , C12Q1/6844 , G06T19/006 , G02F1/133526 , G02F1/13363
Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems an related methods. In one aspect, an adaptive lens assembly includes a lens stack configured to exert polarization-dependent optical power to linearly polarized light. The lens stack includes a birefringent lens and an isotropic lens contacting each other to form a conformal interface therebetween. The adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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公开(公告)号：US11941881B2
公开(公告)日：2024-03-26
申请号：US17320090
申请日：2021-05-13
Applicant: Magic Leap, Inc.
Inventor： Ravi Kumar Komanduri , Chulwoo Oh , Kevin Messer , Ioannis Papadopoulos
CPC classification number: G06V20/20 , G02B27/0172 , G06F18/10 , G06F18/217 , G06F18/22 , G06N20/00 , G06T3/0093 , G06V20/62 , G02B2027/0114 , G02B2027/0134
Abstract: A pupil separation system includes an input surface, a central portion including a set of dichroic mirrors, a first reflective surface disposed laterally with respect to the central portion, and a second reflective surface disposed laterally with respect to the central portion. The pupil separation system also includes an exit face including a central surface operable to transmit light in a first wavelength range, a first peripheral surface adjacent the central surface and operable to transmit light in a second wavelength range, and a second peripheral surface adjacent the central surface and opposite to the first peripheral surface. The second peripheral surface is operable to transmit light in a third wavelength range.
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5.发明授权公开(公告)号：US11656462B2
公开(公告)日：2023-05-23
申请号：US16978165
申请日：2019-03-05
Applicant: Magic Leap, Inc.
Inventor： Ravi Kumar Komanduri , Chulwoo Oh
IPC: G09G5/00 , G02B27/01 , G06T19/00 , C12Q1/6844 , G02F1/1335 , G02F1/13363
CPC classification number: G02B27/0172 , C12Q1/6844 , G06T19/006 , G02F1/13363 , G02F1/133526
Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems. In one aspect, an adaptive lens assembly includes a lens stack configured to exert polarization-dependent optical power to linearly polarized light. The lens stack includes a birefringent lens and an isotropic lens contacting each other to form a conformal interface therebetween. The adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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Patent Agency Ranking
公开(公告)号：US20220146888A1
公开(公告)日：2022-05-12
申请号：US17582845
申请日：2022-01-24
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri , Roy Matthew Patterson , Charles Scott Carden , Michael Nevin Miller , Vikramjit Singh
IPC: G02F1/13363 , G02F1/1335 , G02F1/139 , G02F1/1337 , G02F1/1343 , G02F1/01
Abstract: A display device comprises a waveguide configured to guide light in a lateral direction parallel to an output surface of the waveguide. The waveguide is further configured to outcouple the guided light through the output surface. The display device additionally comprises a broadband adaptive lens assembly configured to incouple and to diffract therethrough the outcoupled light from the waveguide. The broadband adaptive lens assembly comprises a first waveplate lens comprising a liquid crystal (LC) layer arranged such that the waveplate lens has birefringence (Δn) that varies in a radially outward direction from a central region of the first waveplate lens and configured to diffract the outcoupled light at a diffraction efficiency greater than 90% within a wavelength range including at least 450 nm to 630 nm. The broadband adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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公开(公告)号：US20190129178A1
公开(公告)日：2019-05-02
申请号：US16171111
申请日：2018-10-25
Applicant: Magic Leap, Inc.
Inventor： Roy Patterson , Chulwoo Oh , Ravi Kumar Komanduri , Charles Scott Carden , Michael Nevin Miller , Vikramjit Singh , Shuqiang Yang
Abstract: A display device includes a waveguide assembly comprising a waveguide configured to outcouple light out of a major surface of the waveguide to form an image in the eyes of a user. An adaptive lens assembly has a major surface facing the output surface and a waveplate lens and a switchable waveplate assembly. The switchable waveplate assembly includes quarter-wave plates on opposing sides of a switchable liquid crystal layer, and electrodes on the quarter-wave plates in the volume between the quarter-wave plates. The electrodes can selectively establish an electric field and may serve as an alignment structure for molecules of the liquid crystal layer. Portions of the adaptive lens assembly may be manufactured by roll-to-roll processing in which a substrate roll is unwound, and alignment layers and liquid crystal layers are formed on the substrate as it moves towards a second roller, to be wound on that second roller.
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公开(公告)号：US20240345402A1
公开(公告)日：2024-10-17
申请号：US18753101
申请日：2024-06-25
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri
CPC classification number: G02B27/0172 , G06F3/013 , G02B2027/0123 , G02B2027/0138
Abstract: A thin transparent layer can be integrated in a head mounted display device and disposed in front of the eye of a wearer. The thin transparent layer may be configured to output light such that light is directed onto the eye to create reflections therefrom that can be used, for example, for glint based tracking. The thin transparent layer can be configured to reduced obstructions in the field of the view of the user.
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公开(公告)号：US20240333890A1
公开(公告)日：2024-10-03
申请号：US18740392
申请日：2024-06-11
Applicant: Magic Leap, Inc.
Inventor： Kristina Uhlendorf , Kevin Richard Curtis , Kirk William Cook , Ravi Kumar Komanduri
IPC: H04N9/31 , G02B27/01 , G02B27/28 , H04N13/128 , H04N13/363
CPC classification number: H04N9/3167 , G02B27/0172 , G02B27/283 , H04N9/3164 , G02B2027/0178 , H04N13/128 , H04N13/363
Abstract: An image projection system includes an illumination source, a linear polarizer, and an eyepiece waveguide including a plurality of diffractive in-coupling optical elements. The eyepiece waveguide includes a region operable to transmit illumination light from the illumination source. The image projection system also includes a polarizing beamsplitter, a reflective structure, a quarter waveplate disposed between the polarizing beamsplitter and the reflective structure, and a reflective spatial light modulator.
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公开(公告)号：US11940639B2
公开(公告)日：2024-03-26
申请号：US17211457
申请日：2021-03-24
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri , David Kleinman , Vaibhav Mathur , David Manly
IPC: G02B5/30 , F21V8/00 , G02B5/08 , G02B27/01 , G02F1/1335
CPC classification number: G02B5/305 , G02B5/0808 , G02B5/3058 , G02B5/3083 , G02B6/0076 , G02B27/0172 , G02F1/133528 , G02B2207/101
Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.
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