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公开(公告)号：US20240085705A1
公开(公告)日：2024-03-14
申请号：US18514500
申请日：2023-11-20
Applicant: Magic Leap, Inc.
Inventor： Dianmin LIN , Pierre ST. HILAIRE
CPC classification number: G02B27/0172 , G02B6/0036 , G02B6/0076 , G02B2027/0123 , G02B2027/014 , G02B2027/0178
Abstract: An example a head-mounted display device includes a light projector and an eyepiece. The eyepiece is arranged to receive light from the light projector and direct the light to a user during use of the wearable display system. The eyepiece includes a waveguide having an edge positioned to receive light from the display light source module and couple the light into the waveguide. The waveguide includes a first surface and a second surface opposite the first surface. The waveguide includes several different regions, each having different grating structures configured to diffract light according to different sets of grating vectors.
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公开(公告)号：US20220295022A1
公开(公告)日：2022-09-15
申请号：US17830243
申请日：2022-06-01
Applicant: Magic Leap, Inc.
Inventor： Pierre ST. HILAIRE , Evgeni POLIAKOV , Sundeep Kumar JOLLY
IPC: H04N9/31 , H01L25/075 , G02B27/10
Abstract: This disclosure relates to the use of variable-pitch light-emitting devices for display applications, including for displays in augmented reality, virtual reality, and mixed reality environments. In particular, it relates to small (e.g., micron-size) light emitting devices (e.g., micro-LEDs) of variable pitch to provide the advantages, e.g., of compactness, manufacturability, color rendition, as well as computational and power savings. Systems and methods for emitting multiple lights by multiple panels where a pitch of one panel is different than pitch(es) of other panels are disclosed. Each panel may comprise a respective array of light emitters. The multiple lights may be combined by a combiner.
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公开(公告)号：US20190011722A1
公开(公告)日：2019-01-10
申请号：US16028313
申请日：2018-07-05
Applicant: MAGIC LEAP, INC.
Inventor： Pierre ST. HILAIRE
Abstract: An imaging system includes a diffusing element configured to couple portions of a light beam back into a laser diode. The system includes a diode laser driven into a chaotic regime by a combination of a diffuser and a modulated drive current such that it emits light across a frequency spectrum having an envelope between 3 and 10 nanometers wide. The system further includes a diffusing element at least 0.1 mm to 0.5 mm away from the diode laser to couple portions of the light beam back into the laser diode. Another embodiment is directed to using the diffusing element to illuminate a flat panel display or a spatial light modulator.
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公开(公告)号：US20250024004A1
公开(公告)日：2025-01-16
申请号：US18900448
申请日：2024-09-27
Applicant: Magic Leap, Inc.
Inventor： Pierre ST. HILAIRE , Evgeni POLIAKOV , Sundeep Kumar JOLLY
IPC: H04N9/31 , G02B27/01 , G02B27/10 , H01L25/075
Abstract: This disclosure relates to the use of variable-pitch light-emitting devices for display applications, including for displays in augmented reality, virtual reality, and mixed reality environments. In particular, it relates to small (e.g., micron-size) light emitting devices (e.g., micro-LEDs) of variable pitch to provide the advantages, e.g., of compactness, manufacturability, color rendition, as well as computational and power savings. Systems and methods for emitting multiple lights by multiple panels where a pitch of one panel is different than pitch(es) of other panels are disclosed. Each panel may comprise a respective array of light emitters. The multiple lights may be combined by a combiner.
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公开(公告)号：US20220413315A1
公开(公告)日：2022-12-29
申请号：US17895274
申请日：2022-08-25
Applicant: MAGIC LEAP, INC.
Inventor： Pierre ST. HILAIRE
Abstract: An imaging system includes a diffusing element configured to couple portions of a light beam back into a laser diode. The system includes a diode laser driven into a chaotic regime by a combination of a diffuser and a modulated drive current such that it emits light across a frequency spectrum having an envelope between 3 and 10 nanometers wide. The system further includes a diffusing element at least 0.1 mm to 0.5 mm away from the diode laser to couple portions of the light beam back into the laser diode. Another embodiment is directed to using the diffusing element to illuminate a flat panel display or a spatial light modulator.
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Patent Agency Ranking
公开(公告)号：US20210239997A1
公开(公告)日：2021-08-05
申请号：US17236094
申请日：2021-04-21
Applicant: MAGIC LEAP, INC.
Inventor： Pierre ST. HILAIRE
Abstract: An imaging system includes a diffusing element configured to couple portions of a light beam back into a laser diode. The system includes a diode laser driven into a chaotic regime by a combination of a diffuser and a modulated drive current such that it emits light across a frequency spectrum having an envelope between 3 and 10 nanometers wide. The system further includes a diffusing element at least 0.1 mm to 0.5 mm away from the diode laser to couple portions of the light beam back into the laser diode. Another embodiment is directed to using the diffusing element to illuminate a flat panel display or a spatial light modulator.
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公开(公告)号：US20230341597A1
公开(公告)日：2023-10-26
申请号：US18044824
申请日：2021-09-14
Applicant: Magic Leap, Inc.
Inventor： Victor Kai LIU , Samarth BHARGAVA , Brandon Michael-James BORN , Dianmin LIN , Pierre ST. HILAIRE , Vikramjit SINGH , Kang LUO
CPC classification number: G02B5/1819 , G02B27/0944 , G02B27/0081 , G02B27/0101 , G02B27/0172 , G02B2027/0112
Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an optically transmissive substrate with an input coupling grating (ICG) region. The ICG region can receive a beam of light and couple the beam into the substrate in a guided propagation mode. The eyepiece waveguide can also include a combined pupil expander-extractor (CPE) grating region that receives the beam of light from the ICG region and alters the propagation direction of the beam with a first interaction and out-couples the beam with a second interaction. The diffractive features of the CPE grating region can be arranged in rows and columns of alternating higher and lower quadrilateral surfaces or the diffractive features can comprise diamond shaped raised ridges. The eyepiece waveguide can also include one or more recycler grating regions.
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公开(公告)号：US20200326546A1
公开(公告)日：2020-10-15
申请号：US16860756
申请日：2020-04-28
Applicant: Magic Leap, Inc.
Inventor： Lionel Ernest EDWIN , Ivan Li Chuen YEOH , Brian T. SCHOWENGERDT , Kevin Richard CURTIS , William Hudson WELCH , Pierre ST. HILAIRE , Hui-Chuan CHENG
Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.
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公开(公告)号：US20180149873A1
公开(公告)日：2018-05-31
申请号：US15826315
申请日：2017-11-29
Applicant: Magic Leap, Inc.
Inventor： Lionel Ernest EDWIN , Ivan Li Chuen YEOH , Brian T. SCHOWENGERDT , Kevin Richard CURTIS , William Hudson WELCH , Pierre ST. HILAIRE , Hui-Chuan CHENG
Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.
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公开(公告)号：US20240361600A1
公开(公告)日：2024-10-31
申请号：US18761616
申请日：2024-07-02
Applicant: Magic Leap, Inc.
Inventor： Dianmin LIN , Pierre ST. HILAIRE
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B6/0036 , G02B6/0076 , G02B2027/0123 , G02B2027/014 , G02B2027/0178
Abstract: An example a head-mounted display device includes a light projector and an eyepiece. The eyepiece is arranged to receive light from the light projector and direct the light to a user during use of the wearable display system. The eyepiece includes a waveguide having an edge positioned to receive light from the display light source module and couple the light into the waveguide. The waveguide includes a first surface and a second surface opposite the first surface. The waveguide includes several different regions, each having different grating structures configured to diffract light according to different sets of grating vectors.
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