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公开(公告)号：US20180074340A1
公开(公告)日：2018-03-15
申请号：US15262282
申请日：2016-09-12
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Steven Robbins , Sihui He , Eliezer Glik , Xinye Lou
CPC classification number: G02B27/4261 , G02B5/1833 , G02B6/105 , G02B27/0081 , G02B27/0101 , G02B27/0927 , G02B27/0944
Abstract: An optical waveguide, for use a near-eye or heads-up display system, includes an input-coupler, an intermediate-component and an output-coupler. The input-coupler is configured to couple light corresponding to an image that is incident on the input-coupler, into the optical waveguide and towards the intermediate-component. The intermediate-component can be implemented as a Bragg polarization grating that comprises a stack of birefringent layers configured to diffract the light corresponding to the image that is incident thereon into a zero-order beam having one of right handed circular polarization or left handed circular polarization, and a first-order beam having the other one of right handed circular polarization or left handed circular polarization. The output-coupler is configured to couple, out of the optical waveguide, the light corresponding to the image that travels in the optical waveguide from the input-coupler to the output-coupler via the intermediate-component by way of total internal reflection (TIR).
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公开(公告)号：US09459451B2
公开(公告)日：2016-10-04
申请号：US14140987
申请日：2013-12-26
Applicant: Microsoft Technology Licensing, LLC
Inventor： Pasi Saarikko , Xinye Lou , Scott McEldowney , Steven Robbins , Tapani Levola
IPC: G02B6/34 , G03H1/00 , G09G5/00 , G02B27/00 , G02B6/02 , H04N13/04 , G06F3/01 , A61B3/113 , G02B27/01
CPC classification number: G02B27/0093 , A61B3/113 , G02B6/02085 , G02B6/34 , G02B27/0172 , G02B2027/0107 , G02B2027/0138 , G02B2027/0178 , G06F3/013 , H04N13/383
Abstract: A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler. The radially varying pitch of the curved grating lines of the input-coupler provides angular encoding of infrared light incident on the input-coupler, and more specifically, causes different beams of infrared light incident on respective different horizontal and vertical positions of the input-coupler to propagate through the waveguide at respective different angles of reflection and exit the waveguide at respective different angles of incidence relative to a surface of the waveguide through which infrared light beams exit.
Abstract translation: 用于眼睛跟踪的透明波导包括输入耦合器和输出耦合器。 输入耦合器包括具有径向变化间距的多个弯曲光栅线。 当放置在用红外线照射的眼睛前方时，从眼睛反射并入射到输入耦合器上的红外光束进入输入耦合器处的波导，通过全内反射传播通过波导，并离开波导 靠近输出耦合器。 输入耦合器的弯曲光栅线的径向变化的间距对入射到输入耦合器上的红外光的角度编码提供了角度编码，更具体地说，使不同的红外光束入射在输入耦合器的不同的水平和垂直位置上 以相应的不同的反射角传播通过波导并以相应的入射角相对于波导的表面离开波导，红外光束通过该表面离开。
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公开(公告)号：US10551622B2
公开(公告)日：2020-02-04
申请号：US15439010
申请日：2017-02-22
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steven John Robbins , Joshua Owen Miller , Richard Andrew Wall , Eliezer Glik , Jani Kari Tapio Tervo , Bernard Kress , Xinye Lou
IPC: G02B27/01 , F21V8/00 , G02B6/124 , G02B6/126 , G02B27/42 , H04N13/337 , H04N13/341 , H04N13/344 , H04N13/398
Abstract: An input-coupler of an optical waveguide includes one or more Bragg polarization gratings for coupling light corresponding to the image in two different directions into the optical waveguide. The input-coupler splits the FOV of the image coupled into the optical waveguide into first and second portions by diffracting a portion of the light corresponding to the image in a first direction toward a first intermediate component, and diffracting a portion of the light corresponding to the image in a second direction toward a second intermediate component. An output-coupler of the waveguide combines the light corresponding to the first and second portions of the FOV, and couples the light corresponding to the combined first and second portions of the FOV out of the optical waveguide so that the light corresponding to the image and the combined first and second portions of the FOV is output from the optical waveguide. The input-coupler splitting the light to two or more intermediate components provides an increased FOV.
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公开(公告)号：US10359627B2
公开(公告)日：2019-07-23
申请号：US14936937
申请日：2015-11-10
Applicant: Microsoft Technology Licensing, LLC
Inventor： R. Andrew Wall , Scott Woltman , Steven John Robbins , Xinye Lou , Gangok Lee , Yarn Chee Poon , Tuomas Vallius , Pasi Kostamo , Tapani Levola , Yijing Fu
Abstract: An apparatus for use in replicating an image associated with an input-pupil to an output-pupil includes a planar optical waveguide including a bulk-substrate, and also including an input-coupler, an intermediate-component and an output-coupler. The input-coupler couples light corresponding to the image into the bulk-substrate and towards the intermediate-component. The intermediate-component performs horizontal or vertical pupil expansion and directs the light corresponding to the image towards the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples light corresponding to the image, which travels from the input-coupler to the output-coupler, out of the waveguide. The apparatus further includes an adjacent planar optical component to provide a more uniform intensity distribution compared to if the adjacent planar optical component were absent.
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公开(公告)号：US10228561B2
公开(公告)日：2019-03-12
申请号：US13927025
申请日：2013-06-25
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steve Robbins , Scott McEldowney , Xinye Lou , David Nister , Drew Steedly , Quentin Simon Charles Miller , David D Bohn , James Peele Terrell, Jr. , Andrew C. Goris , Nathan Ackerman
Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
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Patent Agency Ranking
公开(公告)号：US20180129048A1
公开(公告)日：2018-05-10
申请号：US15481325
申请日：2017-04-06
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steven John Robbins , Xinye Lou , Eliezer M. Glik
CPC classification number: G02B27/0172 , G02B27/283 , G02B27/4205 , G02B27/4261 , G02B2027/0134 , G02B2027/0174 , G02B2027/0185
Abstract: In implementations of hologram focus accommodation, a focus accommodation system is implemented for variable focus of a generated image, such as a hologram, that is displayed for viewing on a waveguide display. The focus accommodation system includes switchable polarization retarders that rotate a polarization of light of the generated image, where the light passes through the switchable polarization retarders along an imaging path in which the generated image is viewable. The focus accommodation system also includes polarization sensitive gratings alternatingly interspersed with the switchable polarization retarders. Each of the polarization sensitive gratings are configurable to diffract the light in a first polarization state and transmit the light in a second polarization state. The variable focus is adjustable to a focal distance at which a user perceives viewing the generated image as displayed by the waveguide display.
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公开(公告)号：US10345903B2
公开(公告)日：2019-07-09
申请号：US13973788
申请日：2013-08-22
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steve Robbins , Scott C. McEldowney , Xinye Lou , David D. Bohn , Quentin Simon Charles Miller , David Nister , Gerhard Schneider , Christopher Maurice Mei , Nathan Ackerman
Abstract: A method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.
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公开(公告)号：US10095045B2
公开(公告)日：2018-10-09
申请号：US15262282
申请日：2016-09-12
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Steven Robbins , Sihui He , Eliezer Glik , Xinye Lou
Abstract: An optical waveguide, for use a near-eye or heads-up display system, includes an input-coupler, an intermediate-component and an output-coupler. The input-coupler is configured to couple light corresponding to an image that is incident on the input-coupler, into the optical waveguide and towards the intermediate-component. The intermediate-component can be implemented as a Bragg polarization grating that comprises a stack of birefringent layers configured to diffract the light corresponding to the image that is incident thereon into a zero-order beam having one of right handed circular polarization or left handed circular polarization, and a first-order beam having the other one of right handed circular polarization or left handed circular polarization. The output-coupler is configured to couple, out of the optical waveguide, the light corresponding to the image that travels in the optical waveguide from the input-coupler to the output-coupler via the intermediate-component by way of total internal reflection (TIR).
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公开(公告)号：US10274732B2
公开(公告)日：2019-04-30
申请号：US15481325
申请日：2017-04-06
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steven John Robbins , Xinye Lou , Eliezer M. Glik
Abstract: In implementations of hologram focus accommodation, a focus accommodation system is implemented for variable focus of a generated image, such as a hologram, that is displayed for viewing on a waveguide display. The focus accommodation system includes switchable polarization retarders that rotate a polarization of light of the generated image, where the light passes through the switchable polarization retarders along an imaging path in which the generated image is viewable. The focus accommodation system also includes polarization sensitive gratings alternatingly interspersed with the switchable polarization retarders. Each of the polarization sensitive gratings are configurable to diffract the light in a first polarization state and transmit the light in a second polarization state. The variable focus is adjustable to a focal distance at which a user perceives viewing the generated image as displayed by the waveguide display.
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公开(公告)号：US20180172994A1
公开(公告)日：2018-06-21
申请号：US15382471
申请日：2016-12-16
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steven John Robbins , Eliezer Glik , Sihui He , Xinye Lou
CPC classification number: G02B27/0172 , G02B5/1833 , G02B5/3016 , G02B26/0808 , G02B26/0833 , G02B26/101 , G02B27/1086 , G02B27/283 , G02B27/4227 , G02B27/4261
Abstract: A MEMS laser scanner is disclosed for use in a near-eye display including an increased field of view (FOV). In embodiments, one or more polarization gratings may be applied to the mirror of the MEMS laser scanner, which polarization gratings may be configured according to the Bragg regime. Using light of different polarizations, the MEMS laser scanner is able to expand the FOV without increasing the range over which the mirror of the scanner oscillates.
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