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公开(公告)号：US20160370583A1
公开(公告)日：2016-12-22
申请号：US15255934
申请日：2016-09-02
Applicant: Microsoft Technology Licensing, LLC
Inventor： Pasi Saarikko , Xinye Lou , Scott McEldowney , Steven Robbins
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.
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公开(公告)号：US10254542B2
公开(公告)日：2019-04-09
申请号：US15624409
申请日：2017-06-15
Applicant: Microsoft Technology Licensing, LLC
Inventor： Joel Steven Kollin , Andrew Maimone , Steven John Robbins , Eliezer Glik , Andreas Georgiou , Xinye Lou
Abstract: Examples are disclosed that relate to a near-eye display device including a holographic display system. The holographic display system includes a light source configured to emit light that is converging or diverging, a waveguide configured to be positioned in a field of view of a user's eye, and a digital dynamic hologram configured to receive the light, and project the light into the waveguide such that the light propagates through the waveguide.
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Patent Agency Ranking
公开(公告)号：US10088686B2
公开(公告)日：2018-10-02
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
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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公开(公告)号：US20180113309A1
公开(公告)日：2018-04-26
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
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：US09759913B2
公开(公告)日：2017-09-12
申请号：US15255934
申请日：2016-09-02
Applicant: Microsoft Technology Licensing, LLC
Inventor： Pasi Saarikko , Xinye Lou , Scott McEldowney , Steven Robbins
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.
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公开(公告)号：US09625723B2
公开(公告)日：2017-04-18
申请号：US13926968
申请日：2013-06-25
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Xinye Lou , Scott McEldowney , Steve Robbins
CPC classification number: G02B27/0172 , G02B27/0093 , G02B27/017 , G02B2027/0178 , G02B2027/0187 , G06F3/013
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 having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
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公开(公告)号：US09377623B2
公开(公告)日：2016-06-28
申请号：US14456512
申请日：2014-08-11
Applicant: Microsoft Technology Licensing, LLC
Inventor： Steven Robbins , Ian A. Nguyen , Xinye Lou
CPC classification number: G02B27/0093 , G02B5/18 , G02B27/017 , G02B27/0172 , G06F3/013
Abstract: A transparent waveguide, which is for use in tracking an eye that is illuminated by infrared light having an infrared wavelength, includes a volume Bragg grating type of input-coupler adapted to receive infrared light having the infrared wavelength and couple the received infrared light into the waveguide. The volume Bragg grating includes a lower boundary and an upper boundary that is closer to the output-coupler than the lower boundary. A k-vector angle of the volume Bragg grating at the lower boundary is greater than a k-vector angle at the upper boundary, with k-vector angles of the volume Bragg grating between the lower and upper boundaries gradually decreasing as distances decrease between grating planes of the volume Bragg grating and the upper boundary. Additionally, the volume Bragg grating preferably has an angular bandwidth that is no greater than 5 degrees.
Abstract translation: 用于跟踪由具有红外波长的红外光照射的眼睛的透明波导包括体积布拉格光栅类型的输入耦合器，其适于接收具有红外波长的红外光并将接收到的红外光耦合到 波导。 体积布拉格光栅包括比下边界更靠近输出耦合器的下边界和上边界。 下边界体积布拉格光栅的k向量角大于上边界的k向量角，下边界和上边界之间的体积布拉格光栅的k向量角随着光栅间距的减小而逐渐减小 体积布拉格光栅的平面和上边界。 另外，体积布拉格光栅优选具有不大于5度的角带宽。
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