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公开(公告)号：US20170176747A1
公开(公告)日：2017-06-22
申请号：US14977603
申请日：2015-12-21
申请人： Tuomas Heikki Sakari Vallius , Richard Andrew Wall , Pasi Petteri Pietilä , Yarn Chee Poon , Ian Anh Nguyen , Jeb Wu
发明人： Tuomas Heikki Sakari Vallius , Richard Andrew Wall , Pasi Petteri Pietilä , Yarn Chee Poon , Ian Anh Nguyen , Jeb Wu
CPC分类号： G02B27/0172 , G02B6/3598 , G02B27/0081 , G02B27/1066 , G02B27/283 , G02B2027/0123 , G02B2027/0134 , G02B2027/0174 , G02B2027/0178
摘要： Disclosed are an apparatus and method for increasing the FOV of displayed images in a head-mounted display (HMD) device. A display apparatus comprises a display module and a waveguide optically coupled to the display module. The display module may generate individually multiple different portions of an image, to be conveyed to an optical receptor of a user of the HMD device, and may include multiple optical output ports, each to output a different portion of the image. The waveguide may include multiple optical input ports, each optically coupled to a different one of the optical output ports of the display module, where the waveguide is configured to output, to the optical receptor of the user, light corresponding to the image in its entirety.
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公开(公告)号：US20170160547A1
公开(公告)日：2017-06-08
申请号：US14958751
申请日：2015-12-03
申请人： James Randolph Webster , Jeb Wu , Steven John Robbins , Tuomas Heikki Sakari Vallius , Yarn Chee Poon
发明人： James Randolph Webster , Jeb Wu , Steven John Robbins , Tuomas Heikki Sakari Vallius , Yarn Chee Poon
CPC分类号： G02B27/0172 , G02B5/18 , G02B5/1814 , G02B5/1842 , G02B6/0035 , G02B6/0061 , G02B27/0944 , G02B27/4205 , G02B2027/0118 , G06T19/006 , G11B7/1353
摘要： Introduced here is a display device that comprises a light emitter and a diffractive optical element (DOE) that is optically coupled to receive light from the light emitter and to convey the light along an optical path. The DOE may have an input surface and an output surface parallel to the input surface, where the input surface and the output surface each have a central region and a peripheral region. The DOE further may have optical characteristics such that light exiting the DOE in the peripheral region of the output surface has greater brightness than light exiting the DOE in the central region of the output surface.
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公开(公告)号：US20170242249A1
公开(公告)日：2017-08-24
申请号：US15048917
申请日：2016-02-19
摘要： A waveguide-based pupil relay for an optical system can comprise a light-transmissive substrate that includes a plurality of internally reflective surfaces to enable light rays of a plurality of different colors to propagate through the substrate by total internal reflection. The pupil relay can further include an input surface to input light rays of the plurality of different colors through an entry pupil of the optical waveguide, and an output surface to output light rays of the plurality of different colors from the substrate through an exit pupil of the optical waveguide. The pupil relay can have optical properties such that the entry pupil and exit pupil have substantially identical size and shape and such that the input light rays and output light rays have substantially identical chromatic properties.
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公开(公告)号：US09885870B2
公开(公告)日：2018-02-06
申请号：US15137185
申请日：2016-04-25
CPC分类号： G02B27/0172 , G02B5/1823 , G02B5/1857 , G02B6/0016 , G02B6/0043 , G02B6/0058 , G02B6/0061 , G02B26/0808 , G02B27/0081 , G02B27/4205 , G02B2027/0123 , G02F1/011 , G02F1/1326 , G02F1/133345 , G02F2201/307
摘要： A waveguide configured for use with a near eye display (NED) device can include a light-transmissive substrate configured to propagate light rays through total internal reflection and a switchable diffractive optical element (DOE) on a surface of the substrate that is configured to input and/or output light rays to and/or from the substrate. According to some embodiments, the switchable DOE can include diffractive properties that vary across an area of the DOE. In some embodiments, the switchable DOE includes a surface relief diffraction grating (SRG) a surface of the substrate, a layer of liquid crystal material in contact with the SRG, a layer of conducting material in contact with the liquid crystal material configured to apply the voltage to the liquid crystal material, and a layer of insulating material over the layer of conducting material.
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公开(公告)号：US20170307887A1
公开(公告)日：2017-10-26
申请号：US15137185
申请日：2016-04-25
CPC分类号： G02B27/0172 , G02B5/1823 , G02B5/1857 , G02B6/0016 , G02B6/0043 , G02B6/0058 , G02B6/0061 , G02B26/0808 , G02B27/0081 , G02B27/4205 , G02B2027/0123 , G02F1/011 , G02F1/1326 , G02F1/133345 , G02F2201/307
摘要： A waveguide configured for use with a near eye display (NED) device can include a light-transmissive substrate configured to propagate light rays through total internal reflection and a switchable diffractive optical element (DOE) on a surface of the substrate that is configured to input and/or output light rays to and/or from the substrate. According to some embodiments, the switchable DOE can include diffractive properties that vary across an area of the DOE. In some embodiments, the switchable DOE includes a surface relief diffraction grating (SRG) a surface of the substrate, a layer of liquid crystal material in contact with the SRG, a layer of conducting material in contact with the liquid crystal material configured to apply the voltage to the liquid crystal material, and a layer of insulating material over the layer of conducting material.
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