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31.发明授权公开(公告)号：US11886000B2
公开(公告)日：2024-01-30
申请号：US17044754
申请日：2019-04-01
Applicant: Magic Leap, Inc.
Inventor： Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Victor Kai Liu , Roy Matthew Patterson , David Carl Jurbergs , Mohammadreza Khorasaninejad , Ling Li , Michael Nevin Miller , Charles Scott Carden
CPC classification number: G02B6/0088 , B29D11/00673 , G02B6/0016 , G02B6/0036 , G02B6/0076 , G02B27/4277 , G02B5/003 , G02B27/0172
Abstract: In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and/or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and/or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.
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公开(公告)号：US20230359036A1
公开(公告)日：2023-11-09
申请号：US18217418
申请日：2023-06-30
Applicant: Magic Leap, Inc.
Inventor： Ling Li , Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Brian George Hill , Melanie Maputol West , Ryan Jason Ong , Xiaopei Deng , Shuqiang Yang , Frank Y. Xu , Ali Karbasi
CPC classification number: G02B27/0172 , G02B6/0076 , G02B2027/0178
Abstract: A head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting or casting. The spacers are disposed on one or more major surfaces of the waveguides and define a distance between immediately adjacent waveguides. Adjacent waveguides may be bonded using adhesives on the spacers. The spacers may fit within indentations of overlying waveguides. In some cases, the spacers may form one or more walls of material substantially around a perimeter of an associated waveguide. Vent holes may be provided in the walls to allow gas flow into and out from an interior volume defined by the spacers. Debris trapping structures may be provided between two walls of spacers to trap and prevent debris from entering into the interior volume.
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公开(公告)号：US20230244087A1
公开(公告)日：2023-08-03
申请号：US18133364
申请日：2023-04-11
Applicant: Magic Leap, Inc.
Inventor： Chieh Chang , Victor Kai Liu , Samarth Bhargava , Ling Li , Sharad D. Bhagat , Christophe Peroz , Jason Donald Mareno
CPC classification number: G02B30/52 , G02B27/0075 , G02B27/0081
Abstract: A method of operating a dynamic eyepiece in an augmented reality headset includes producing first virtual content associated with a first depth plane, coupling the first virtual content into the dynamic eyepiece, and projecting the first virtual content through one or more waveguide layers of the dynamic eyepiece to an eye of a viewer. The one or more waveguide layers are characterized by a first surface profile. The method also includes modifying the one or more waveguide layers to be characterized by a second surface profile different from the first surface profile, producing second virtual content associated with a second depth plane, coupling the second virtual content into the dynamic eyepiece, and projecting the second virtual content through the one or more waveguide layers of the dynamic eyepiece to the eye of the viewer.
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公开(公告)号：US11656480B2
公开(公告)日：2023-05-23
申请号：US16926352
申请日：2020-07-10
Applicant: Magic Leap, Inc.
Inventor： Chieh Chang , Victor Kai Liu , Samarth Bhargava , Ling Li , Sharad D. Bhagat , Christophe Peroz , Jason Donald Mareno
CPC classification number: G02B30/52 , G02B27/0075 , G02B27/0081
Abstract: A dynamic eyepiece for projecting an image to an eye of a viewer includes a waveguide layer having an input surface, an output surface opposing the input surface, and a periphery. The waveguide layer is configured to propagate light therein. The dynamic eyepiece also includes a mechanical structure coupled to at least a portion of the periphery of the waveguide layer. The mechanical structure is operable to apply a first mechanical force to the at least a portion of the periphery of the waveguide layer to impose a first surface profile on the output surface of the waveguide layer and apply a second mechanical force to the at least a portion of the periphery of the waveguide layer to impose a second surface profile different from the first surface profile on the output surface of the waveguide layer.
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公开(公告)号：US20220413185A1
公开(公告)日：2022-12-29
申请号：US17902729
申请日：2022-09-02
Applicant: Magic Leap, Inc.
Inventor： Christophe Peroz , Chieh Chang , Sharad D. Bhagat
Abstract: In some embodiments, a head-mounted augmented reality display system comprises one or more hybrid waveguides configured to display images by directing modulated light containing image information into the eyes of a viewer. Each hybrid waveguide is formed of two or more layers of different materials. The thicker of the layers is a highly optically transparent “core” layer, and the thinner layer comprises a pattern of protrusions and indentations to form, e.g., a diffractive optical element. The pattern may be formed by imprinting. The hybrid waveguide may include additional layers, e.g., forming a plurality of alternating core layers and thinner patterned layers. Multiple waveguides may be stacked to form an integrated eyepiece, with each waveguide configured to receive and output light of a different component color.
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Patent Agency Ranking
公开(公告)号：US11413591B2
公开(公告)日：2022-08-16
申请号：US16176337
申请日：2018-10-31
Applicant: Magic Leap, Inc.
Inventor： Sharad D. Bhagat , Vikramjit Singh , Christophe Peroz , Chieh Chang
IPC: B01F35/00 , B01F35/221 , C08G77/60 , B29B7/28 , B29B7/00 , B29B7/16 , B29B7/14 , B29B7/24 , B29B7/22 , B01F23/20 , B01F23/40 , B01F23/70 , B01F35/90 , B01F35/512 , B01F35/21 , B01F35/71 , B29B7/86 , B29B7/82 , C08G75/045
Abstract: An example system is used to mix components and dispense a mixture for forming a thiol-ene polymer article. The system includes a first reservoir containing a first component of the thiol-ene polymer including a first polymerizable compound, and a second reservoir containing a second component of the thiol-ene polymer including a second polymerizable compound. The system also includes a mixing vessel having a mixing chamber, a delivery manifold providing a conduit for fluid from the first and second reservoirs to the mixing vessel, and a dispensing manifold providing a conduit for fluid from the mixing vessel. The system also includes a control module programmed to control the operation of the system.
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公开(公告)号：US20220242076A1
公开(公告)日：2022-08-04
申请号：US17725171
申请日：2022-04-20
Applicant: Magic Leap, Inc.
Inventor： Chieh Chang , Christophe Peroz , Sharad D. Bhagat , Roy Matthew Patterson , Michael Anthony Klug , Charles Scott Carden
Abstract: An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.
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公开(公告)号：US11307408B2
公开(公告)日：2022-04-19
申请号：US17065905
申请日：2020-10-08
Applicant: Magic Leap, Inc.
Inventor： Sharad D. Bhagat , David Carl Jurbergs , Ryan Jason Ong , Christophe Peroz , Chieh Chang , Ling Li
Abstract: Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.
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39.发明申请公开(公告)号：US20210382221A1
公开(公告)日：2021-12-09
申请号：US17409163
申请日：2021-08-23
Applicant: Magic Leap, Inc.
Inventor： Sharad D. Bhagat , Brian George Hill , Christophe Peroz , Chieh Chang , Ling Li
Abstract: A diffractive waveguide stack includes first, second, and third diffractive waveguides for guiding light in first, second, and third visible wavelength ranges, respectively. The first diffractive waveguide includes a first material having first refractive index at a selected wavelength and a first target refractive index at a midpoint of the first visible wavelength range. The second diffractive waveguide includes a second material having a second refractive index at the selected wavelength and a second target refractive index at a midpoint of the second visible wavelength range. The third diffractive waveguide includes a third material having a third refractive index at the selected wavelength and a third target refractive index at a midpoint of the third visible wavelength range. A difference between any two of the first target refractive index, the second target refractive index, and the third target refractive index is less than 0.005 at the selected wavelength.
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公开(公告)号：US20210283806A1
公开(公告)日：2021-09-16
申请号：US17200239
申请日：2021-03-12
Applicant: Magic Leap, Inc.
Inventor： Jeremy Lee Sevier , Matthew S. Shafran , Satish Sadam , Roy Matthew Patterson , Kangkang Wang , Chieh Chang , Charles Scott Carden
Abstract: In an example method of forming an optical film for an eyepiece, a curable material is dispensed into a space between a first and a second mold surface. A position of the first mold surface relative to the second mold surface is measured using a plurality of sensors. Each sensor measures a respective relative distance along a respective measurement axis between a respective point on a planar portion of the first mold surface and a respective point on a planar portion of the second mold surface. The measurement axes are parallel to each other, and the points define corresponding triangles on the first and second mold surfaces, respectively. The position of the first mold surface is adjusted relative to the second mold surface based on the measured position, and the curable material is cured to form the optical film.
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