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公开(公告)号：US10012844B2
公开(公告)日：2018-07-03
申请号：US15131879
申请日：2016-04-18
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
IPC: G02F1/13 , G02B27/28 , F21V8/00 , G09G3/34 , G02F1/13357 , G02F1/1335
CPC classification number: G02B27/286 , G02B6/0046 , G02B6/0053 , G02B6/0056 , G02B6/0061 , G02B6/0076 , G02F1/1323 , G02F1/1336 , G02F2001/133626 , G02F2203/50 , G09G3/3406 , G09G2330/021
Abstract: A backlight unit includes a waveguide assembly having a first wedge and a birefringent wedge disposed adjacent to, and arranged nose-to-tail with, the first wedge, to define an interface of the waveguide assembly. The birefringent wedge has different indices of refraction for light propagating through the waveguide assembly in first and second polarization states. The first wedge is configured to propagate the light in the second polarization state at a different speed than the birefringent wedge. A liquid crystal layer is configured to selectively switch the light between the first and second polarization states.
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公开(公告)号：US10582172B2
公开(公告)日：2020-03-03
申请号：US15601933
申请日：2017-05-22
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
Abstract: An optical system includes a light source, a film positioned to be illuminated by light from the light source, the film including a plurality of Bragg gratings configured to redirect the light, and an actuator configured to apply a shearing force to the film. The shearing force manipulates an orientation of the plurality of Bragg gratings to change an extent to which the plurality of Bragg gratings redirects the light and to thereby re-position a pupil at which the light converges after redirection by the plurality of Bragg gratings.
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公开(公告)号：US10248081B2
公开(公告)日：2019-04-02
申请号：US15456405
申请日：2017-03-10
Applicant: Microsoft Technology Licensing, LLC
Inventor： Andreas Georgiou , Adrian Travis
Abstract: A holographic display includes a pixel array including one or more pixels, a holographic data source, a drive array, and a light source. Each pixel includes a phase-modulating structure and an amplitude-modulating structure. The holographic data source is configured to supply a holographic drive signal. The holographic drive signal includes, for each pixel in each of a plurality of time-varying holographic image frames, a phase component defining phase modulation for the pixel and an amplitude component defining amplitude modulation for the pixel. The drive array is configured to, for each pixel in each holographic image frame, modulate the phase-modulating structure according to the phase component and modulate the amplitude-modulating structure according to the amplitude component. The light source is configured to output coherent light to illuminate the one or more pixels of the pixel array.
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公开(公告)号：US20190072767A1
公开(公告)日：2019-03-07
申请号：US15698456
申请日：2017-09-07
Applicant: Microsoft Technology Licensing, LLC
Inventor： Tuomas Vallius , Adrian Travis , Tero Ollikainen , Dmitry Reshidko
Abstract: Apparatuses and systems including curved optical waveguides, and methods for use therewith, are described herein. An output-grating of a curved waveguide includes a spatially modulated grating period configured to cause, for each beam of light corresponding to an image coupled into a bulk-substrate of the curved waveguide by an input-grating, corresponding rays of light output from different locations of the output-grating to be substantially collimated. Adaptive optics of a display engine compensate for aberrations that vary over a field-of-view associated with light corresponding to the image out-coupled by the output-grating. Further, a curved portion of the curved waveguide is designed to keep internally reflected light below a critical angle to prevent inadvertent out-coupling thereof. Further, curved surfaces of the curved waveguide can include polynomial surfaces to compensate for lateral color errors and distortion.
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公开(公告)号：US20180338122A1
公开(公告)日：2018-11-22
申请号：US15601933
申请日：2017-05-22
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
CPC classification number: H04N9/3194 , G02B5/1828 , G02B6/0028 , G02B6/0046 , G02B6/005 , G02B26/0808 , G02B27/0093 , G02B27/0103 , G02B27/0172 , G02B27/0176 , G02B2027/014 , G02B2027/0154 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , H04N9/315 , H04N9/3185
Abstract: An optical system includes a light source, a film positioned to be illuminated by light from the light source, the film including a plurality of Bragg gratings configured to redirect the light, and an actuator configured to apply a shearing force to the film. The shearing force manipulates an orientation of the plurality of Bragg gratings to change an extent to which the plurality of Bragg gratings redirects the light and to thereby re-position a pupil at which the light converges after redirection by the plurality of Bragg gratings.
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Patent Agency Ranking
公开(公告)号：US10067346B2
公开(公告)日：2018-09-04
申请号：US14921864
申请日：2015-10-23
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
Abstract: A display device includes an optical sensor configured to image a user eye, an image source configured to provide image light, a holographic film including a plurality of holograms, and a controller. Each hologram is recorded with a same reference beam but recorded differently so as to differently diffract image light received from the light source. The controller is configured to determine, via the optical sensor, a position of the user eye, and adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to the position of the user eye.
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公开(公告)号：US10012776B2
公开(公告)日：2018-07-03
申请号：US14949419
申请日：2015-11-23
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
CPC classification number: G02B5/288 , B29D11/00634 , B29K2995/0026 , B65H45/12 , B65H45/30 , B65H2701/1752 , B65H2801/61 , G02B1/04 , G02B5/18 , G02B5/1852 , G02B5/1861 , G02B5/20 , G02B27/0172 , G02B27/22 , G02B27/225 , G02B2027/0194 , G02B2207/123
Abstract: An optical filter includes a first film having an upper surface, a lower surface, a first side, and a second side. A second film is included that has an upper surface, a lower surface, a first side, and a second side. A third film is included that has an upper surface, a lower surface, a first side, and a second side. The first side of the first film is connected to the second side of the second film. The first side of the second film is connected to the second side of the third film. The lower surface of the first film is optically adjacent to the upper surface of the second film. The lower surface of the second film is optically adjacent to the upper surface of the third film. Methods of manufacture and use are also described.
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公开(公告)号：US20170295362A1
公开(公告)日：2017-10-12
申请号：US15097199
申请日：2016-04-12
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis
CPC classification number: H04N13/327 , G02B27/0172 , G02B2027/011 , G02B2027/0132 , G02B2027/0138 , G02B2027/014 , G03H1/0005 , G03H2001/0077 , H04N13/128 , H04N13/344 , H04N13/383
Abstract: A near-eye display device comprises a left-eye optical system and a right-eye optical system. Each of the left-eye optical system and the right-eye optical system comprises a holographic optical component positioned in a field of view of a user eye, an image source configured to emit imaging light, and an alignment optical component, wherein projection beam path between the image source and the light-deflecting optical component and an alignment beam path between the alignment optical component and the light-deflecting component share a common optical path.
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公开(公告)号：US09759919B2
公开(公告)日：2017-09-12
申请号：US14589513
申请日：2015-01-05
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adrian Travis , Joel S. Kollin , Andreas Georgiou
IPC: G02B27/01 , G02B26/08 , G02B27/00 , G02B5/18 , G02C9/00 , G03B21/10 , G03H1/02 , G06F1/16 , G06F3/01 , H04N7/18
CPC classification number: G02B27/0172 , G02B5/1828 , G02B26/0808 , G02B27/0093 , G02B27/0103 , G02B2027/0105 , G02B2027/011 , G02B2027/0123 , G02B2027/013 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187 , G02B2027/0194 , G02C9/00 , G03B21/10 , G03H1/0248 , G06F1/163 , G06F3/013 , H04N7/183
Abstract: A display includes a projector configured to provide light of a virtual image, a waveguide into which the light of the virtual image is injected at an injection angle by the projector, and a combiner disposed along the waveguide and configured to redirect the light of the virtual image. The waveguide is configured to emit the light at a point established by the injection angle. The combiner is further configured to allow ambient light from beyond the waveguide to pass through the combiner. The waveguide constrains the light of the virtual image through total internal reflection along a curved path for the light between the projector and the combiner.
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公开(公告)号：US09563269B2
公开(公告)日：2017-02-07
申请号：US14224850
申请日：2014-03-25
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Adrian Travis
IPC: G06G5/00 , G02F1/1333 , G06F3/01 , G02B5/32 , G02F1/1335 , F21V8/00
CPC classification number: G06F3/013 , G02B5/32 , G02B6/0035 , G02B6/0066 , G02B6/0068 , G02F1/133615 , G02F1/133621 , G02F2001/133623
Abstract: A display includes an optical waveguide with opposing front and back faces, an injection optic, and volume hologram arranged on or within the waveguide. The injection optic is configured to inject light into the waveguide at a variable injection angle, which influences the reflection angle at which the light reflects from the front and back faces on propagating through the waveguide. The hologram is configured to release, in a predetermined direction, a portion of the light from the waveguide when excited at a predetermined reflection angle.
Abstract translation: 显示器包括具有相对的前后表面的光波导，布置在波导上或波导内的体积全息图。 注入光学器件被配置为以可变的注入角度将光注入到波导中，该可变的注入角度影响光在通过波导传播时从正面和背面反射的反射角。 全息图被配置为当以预定的反射角度激发时，沿预定方向释放来自波导的一部分光。
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