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    Display of Visual Data with a Virtual Reality Headset
    2.
    发明申请
    Display of Visual Data with a Virtual Reality Headset 审中-公开

    公开(公告)号：US20190266802A1

    公开(公告)日：2019-08-29

    申请号：US16340801

    申请日：2017-09-27

    Applicant: Nokia Technologies Oy

    Inventor： Toni JARVENPAA ,  Peter ESKOLIN ,  Marja SALMIMAA ,  Petri PIIPPO

    IPC: G06T19/00 ,  G02B27/01 ,  G06F3/0481 ,  H04N5/232 ,  G06F16/78 ,  G06T7/20 ,  H04S7/00

    Abstract: This specification describes a method including determining a resolution of visual source content, determining a resolution and a field of view of a display of a virtual reality headset, determining, based at least in part on the resolution of the visual source content; the resolution of the display; and the field of view of the display: a field of view for display of visual data corresponding to the visual source content in the virtual reality space, and a projection shape for display of the visual data corresponding to the visual source content in the virtual reality space, the projection shape including one of a flat projection, a horizontally curved projection, a vertically curved projection, a spherical projection, and a combination thereof.

    Optical Apparatus, Module and Device
    3.
    发明公开
    Optical Apparatus, Module and Device 审中-公开

    公开(公告)号：US20230408834A1

    公开(公告)日：2023-12-21

    申请号：US18035140

    申请日：2021-10-27

    Applicant: Nokia Technologies Oy

    Inventor： Marja SALMIMAA ,  Toni JARVENPAA

    IPC: G02B27/10 ,  G02B27/00 ,  F21V8/00

    CPC classification number: G02B27/1066 ,  G02B27/0081 ,  G02B27/1086 ,  G02B6/0016 ,  G02B6/0018 ,  G02B6/0038 ,  G02B6/0076 ,  G02B6/0088

    Abstract: An apparatus for controlling brightness of images includes: a first light guide including an in-coupling diffraction grating configured to in-couple input beams of light from a first light engine, an expanding grating configured to expand the input beams of light, and an out-coupling diffraction grating configured to out-couple the expanded beams of light; and a second light guide including at least; an in-coupling diffraction grating configured to in-couple input beams of light from a second light engine, an expanding grating configured to expand the input beams of light, and an out-coupling diffraction grating configured to out-couple the expanded beams of light. The out-coupling diffraction grating of the first light guide at least partially overlaps the out-coupling diffraction grating of the second light guide so that images are overlaid to control brightness of images provided by the apparatus.

    Apparatus for a Near-Eye Display
    4.
    发明申请
    Apparatus for a Near-Eye Display 审中-公开

    公开(公告)号：US20180046859A1

    公开(公告)日：2018-02-15

    申请号：US15552897

    申请日：2016-02-05

    Applicant: Nokia Technologies Oy

    Inventor： Toni JARVENPAA

    IPC: G06K9/00 ,  G02B5/20 ,  H04N5/225 ,  G02B27/00 ,  H04N5/33 ,  H04N5/235 ,  F21V8/00 ,  G02B27/01

    Abstract: An apparatus for providing gaze tracking in a near-eye display. Certain examples provide an apparatus including a light modulator configured to receive light of a first range of wavelengths and generate an image beam therefrom. The light modulator is further configured to receive light of a second range of wavelengths and generate a probe beam therefrom. The apparatus also includes one or more light guides including one or more in-coupling element areas, and one or more out-coupling element areas. The one or more in-coupling element areas are configured to receive and in-couple the image beam and the probe beam into the one or more light guides. The one or more out-coupling element areas are configured to out-couple, from the one or more light guides: the image beam to a user's eye for user viewing, and the probe beam to the user's eye for detection of reflection therefrom.

    Gaze Dependent Foveated Rendering Apparatus, Method, Computer Program and System
    6.
    发明申请
    Gaze Dependent Foveated Rendering Apparatus, Method, Computer Program and System 有权

    公开(公告)号：US20210174768A1

    公开(公告)日：2021-06-10

    申请号：US16771764

    申请日：2017-12-19

    Applicant: Nokia Technologies Oy

    Inventor： Toni JARVENPAA ,  Peter ESKOLIN ,  Tero JOKELA ,  Marja SALMIMAA

    IPC: G09G5/37 ,  G06F3/01

    Abstract: Certain examples of the present invention relate to an apparatus, method, computer program and system for use in gaze dependent foveated rendering. Certain examples provide an apparatus including at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform adapting a gaze dependent foveated rendering process in response to a determination of a sub-optimal operational condition of the gaze dependent foveated rendering process.

    Apparatus or Method for Projecting Light Internally Towards and Away from an Eye of a User
    8.
    发明申请
    Apparatus or Method for Projecting Light Internally Towards and Away from an Eye of a User 审中-公开
    用于将光线投射到远离用户眼睛的装置或方法

    公开(公告)号：US20160327795A1

    公开(公告)日：2016-11-10

    申请号：US15109502

    申请日：2014-12-15

    Applicant: NOKIA TECHNOLOGIES OY

    Inventor： Toni JARVENPAA ,  Erika REPONEN ,  Andres LUCERO ,  Akos VETEK

    IPC: G02B27/01 ,  G02B27/00 ,  G06T19/00 ,  G02B6/02

    CPC classification number: G02B27/0172 ,  G02B6/02057 ,  G02B27/0081 ,  G02B27/0093 ,  G02B2027/0138 ,  G02B2027/0178 ,  G06T19/006

    Abstract: An apparatus including an internal optical projection element configured to project light internally towards an eye of a user of the apparatus; an external optical projection element configured to project light externally away from an eye of the user of the apparatus; and one or more optical engines configured to provide light to the internal optical projection element and the external optical projection element. The apparatus preferably further includes a light guide with diffractive in and out-coupling elements and is configured as a head mounted display

    Abstract translation: 一种包括内部光学投影元件的设备，该内部光学投影元件被配置为将光线内部投射到装置的使用者的眼睛; 外部光学投影元件，被配置为将光从外部远离装置的使用者的眼睛投射; 以及配置成向内部光学投影元件和外部光学投影元件提供光的一个或多个光学引擎。 该装置优选地还包括具有衍射和离开耦合元件的光导，并且被配置为头戴显示器

    Optical Apparatuses, Systems and Methods
    9.
    发明公开
    Optical Apparatuses, Systems and Methods 审中-公开

    公开(公告)号：US20230324682A1

    公开(公告)日：2023-10-12

    申请号：US18025023

    申请日：2021-08-23

    Applicant: Nokia Technologies Oy

    Inventor： Toni JARVENPAA ,  Jyrki Sakari KIMMEL ,  Marja SALMIMAA

    IPC: G02B27/01 ,  G02B30/26

    CPC classification number: G02B27/0101 ,  G02B30/26 ,  G02B2027/0187 ,  G02B2027/0123 ,  G02B27/0179

    Abstract: An apparatus includes: first and second light guides, each light guide respectively including: a plurality of diffractive optical elements configured to: in-couple one or more input beams of light into the light guides, expand the input beams of light, and out-couple the expanded beams of light from the light guides to provide expanded output light beams; wherein the out-coupling diffractive optical elements include a plurality of sections thereof that are independently switch able between a first and second out-coupling states. A section of the out-coupling diffractive guide in the first out-coupling state permits the out-coupling of the expanded beams of light therefrom. A section of the out-coupling diffractive guide in the second out-coupling state precludes the out-coupling of the expanded beams of light therefrom. The out-coupling diffractive guides at least partially overlap.

    Apparatus, Method, and System for Use in a Display
    10.
    发明申请
    Apparatus, Method, and System for Use in a Display 有权

    公开(公告)号：US20220082824A1

    公开(公告)日：2022-03-17

    申请号：US17414151

    申请日：2018-12-27

    Applicant: Nokia Technologies Oy

    Inventor： Toni JARVENPAA ,  Jyrki KIMMEL ,  Marja SALMIMAA

    IPC: G02B27/01 ,  G02B27/00 ,  G02B27/30 ,  G02B27/42

    Abstract: Certain examples of the present invention relate to an apparatus, method, and system for use in a display Certain examples provide an apparatus including a waveguide including a plurality of diffractive sections configured to: in-couple an input beam of light into the waveguide, expand the input beam of light, and out-couple the expanded beam of light from the waveguide to provide an expanded output light beam configured for use in a reflection based heads-up display system wherein the expanded output light beam is directed to a curved reflective surface, having a non-zero optical power, for reflection therefrom to a user's eye; wherein the waveguide is configured to adjust the expanded output light beam so as to compensate for the optical power of the curved reflective surface and provide a collimated reflected expanded output light beam to the user's eye.

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