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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
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.
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公开(公告)号：US20180046070A1
公开(公告)日：2018-02-15
申请号：US15552659
申请日：2016-02-05
Applicant: Nokia Technologies Oy
Inventor： Jan ESKOLIN , Petri PIIPPO , Toni JARVENPAA , Marja SALMIMAA
CPC classification number: G03B21/2073 , G02B5/30 , G02B27/017 , G02B27/0172 , G02B27/283 , G02B2027/0118 , G02F1/0136
Abstract: An apparatus comprising: including a light source; a pixel control element; and an input transmission polarizer configured to: polarize incident light from the light source into transmitted first and second light portions, wherein the first light portion has a first polarization and the second light portion has a second polarization and wherein the first and second polarizations are orthogonal; to provide the first light portion as input to the pixel control element; and to output the second light portion to provide the second light portion for illumination.
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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
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.
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4.发明申请公开(公告)号：US20180167634A1
公开(公告)日：2018-06-14
申请号：US15832465
申请日：2017-12-05
Applicant: Nokia Technologies Oy
Inventor： Marja SALMIMAA , Miska HANNUKSELA , Pekka TALMOLA
IPC: H04N19/597 , H04N19/33 , H04N19/167
CPC classification number: H04N19/597 , H04N19/132 , H04N19/167 , H04N19/187 , H04N19/33
Abstract: The invention relates to a method comprising receiving stereoscopic visual data comprising at least one left view image and at least one right view image. An area of interest is determined at the stereoscopic visual data. A first region of the left view image corresponding to a first portion of the area of interest is determined and at least part of the first region is encoded at a first resolution. A second region of the right view image corresponding to a second portion of the area of interest is determined, and at least part of the second region is encoded at a second resolution. The invention also relates to a method for rendering.
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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
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.
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Patent Agency Ranking
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
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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公开(公告)号：US20190187539A1
公开(公告)日：2019-06-20
申请号：US16310071
申请日：2016-06-30
Applicant: Nokia Technologies Oy
Inventor： Marja SALMIMAA , Toni JARVENPAA , Petri PIIPPO , Tero JOKELA
CPC classification number: G03B15/03 , G03B37/04 , H04N5/2256 , H04N5/2258 , H04N5/23238 , H04N5/2354 , H04N13/243
Abstract: A method and apparatus are disclosed for photographic image capture illuminating of a range surrounding a panorama camera that has plural objectives. The illumination is performed from plural positions of the panorama camera from between views of the plural objectives. The illumination is directionally adapted for intensity and/or spectrum for even illumination of entire panorama imaging area.
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公开(公告)号：US20190045125A1
公开(公告)日：2019-02-07
申请号：US16036310
申请日：2018-07-16
Applicant: Nokia Technologies Oy
Inventor： Toni JÄRVENPÄÄ , Peter ESKOLIN , Marja SALMIMAA
Abstract: A method is disclosed, comprising providing video data representing a plurality of frames of virtual reality content captured by a camera. A further step comprises determining a reference depth or object within the content. A further step comprises adjusting the position of content in one or more frames, based on the reference depth or object, to compensate for the movement of the camera during capture.
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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
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.
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公开(公告)号：US20180190166A1
公开(公告)日：2018-07-05
申请号：US15738745
申请日：2016-06-28
Applicant: Nokia Technologies Oy
Inventor： Marja SALMIMAA , Toni JÄRVENPÄÄ , Jan ESKOLIN , Juha NURMI
CPC classification number: G09G3/002 , G02B27/017 , G02B27/0172 , G02B2027/0118 , G02B2027/014 , G02B2027/0178 , G09G2300/023 , G09G2330/021 , G09G2330/022 , G09G2360/144
Abstract: A method including, in a standard display mode, causing display of a graphical element at a position on a see through display that includes a light projection display that overlays a light filtration array such that the light projection display projects the graphical element at the position on the see through display and the light filtration array filters ambient light at the position on the see through display, transitioning from the standard display mode to a low power display mode, causing termination of display of the graphical element on the see through display based on the low power display mode, determining that an event has occurred, generating a notification that signifies the event, and causing actuation of the light filtration array such that a plurality of light filtration cells of the light filtration array are selectively actuated in a pattern that depicts the notification is disclosed.
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