Patents by Inventor Oiva Arvo Oskari Sahlsten

Oiva Arvo Oskari Sahlsten has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180157910
    Abstract: A gaze-tracking system for use in a head-mounted display apparatus. The gaze-tracking system includes: at least one first optical element comprising particles of a phosphorescent or fluorescent material dispersed therein, the particles of the phosphorescent or fluorescent material being dispersed in a manner that when excited by electromagnetic radiation incident thereupon, the particles produce structured light of a given wavelength, wherein the produced structured light illuminates a user's eye; at least one camera for capturing an image of reflections of the structured light from the user's eye, wherein the image is representative of a form of the reflections and a position of the reflections on an image plane of the at least one camera; and a processor coupled in communication with the at least one camera, wherein the processor is configured to process the captured image to detect a gaze direction of the user.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: Mikko Ollila, Klaus Melakari, Oiva Arvo Oskari Sahlsten
  • Publication number: 20180157909
    Abstract: A gaze-tracking system for use in a head-mounted display apparatus. The gaze-tracking system includes at least one illuminator for emitting light pulses; at least one first optical element comprising a plurality of micro-to-nano-sized components, shaped and arranged relative to each other in a manner that, when incident thereupon, a structure of the light pulses is modified to produce structured light, wherein the produced structured light is used to illuminate a user's eye; at least one camera for capturing an image of reflections of the structured light from the user's eye, wherein the image is representative of a form and a position of the reflections on an image plane of the at least one camera; and a processor configured to control the at least one illuminator and the at least one camera, and to process the captured image to detect a gaze direction of the user.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: Mikko Ollila, Klaus Melakari, Oiva Arvo Oskari Sahlsten
  • Patent number: 9989774
    Abstract: A display apparatus and method of displaying, via the display apparatus. The display apparatus includes context image renderer for rendering context image; focus image renderer for rendering focus image; exit optical element; and optical combiner for optically combining projection of the rendered context image with projection of the rendered focus image to create visual scene. The optical combiner includes first semi-transparent reflective element; and a second semi-transparent reflective element. The context image renderer is arranged in a manner that the projection of rendered context image passes through first semi-transparent reflective element towards exit optical element.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 5, 2018
    Assignee: Varjo Technologies Oy
    Inventors: Oiva Arvo Oskari Sahlsten, Mikko Ollila
  • Patent number: 9983413
    Abstract: A display apparatus and method of displaying, via the display apparatus. The display apparatus includes context image renderer for rendering context image; focus image renderer for rendering focus image; exit optical element; and optical combiner for optically combining projection of the rendered context image with projection of the rendered focus image to create visual scene. The optical combiner includes first semi-transparent reflective element; and a second semi-transparent reflective element. The context image renderer is arranged in a manner that projection of rendered context image is incident upon first semi-transparent reflective element and reflected towards exit optical element therefrom.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 29, 2018
    Assignee: Varjo Technologies Oy
    Inventors: Oiva Arvo Oskari Sahlsten, Mikko Ollila
  • Patent number: 9905143
    Abstract: Disclosed is a display apparatus. The display apparatus includes at least one context image renderer for rendering a context image, wherein an angular width of a projection of the rendered context image ranges from 40 degrees to 220 degrees; at least one focus image renderer for rendering a focus image, wherein an angular width of a projection of the rendered focus image ranges from 5 degrees to 60 degrees; and at least one optical combiner for combining the projection of the rendered context image with the projection of the rendered focus image to create a visual scene, wherein the visual scene is to be created in a manner that at least two different optical distances are provided therein.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: February 27, 2018
    Assignee: Varjo Technologies Oy
    Inventors: Urho Konttori, Klaus Melakari, Oiva Arvo Oskari Sahlsten, Kseniia Duginova
  • Patent number: 9711072
    Abstract: Disclosed is a display apparatus comprising at least one context display for rendering a context image, at least one focus display for rendering a focus image, and at least one optical combiner for combining the projection of the rendered context image with the projection of the rendered focus image to create a visual scene. An angular width of a projection of the rendered context image ranges from 40 degrees to 220 degrees. An angular width of a projection of the rendered focus image ranges from 5 degrees to 60 degrees.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: July 18, 2017
    Assignee: Varjo Technologies Oy
    Inventors: Urho Konttori, Klaus Melakari, Oiva Arvo Oskari Sahlsten
  • Patent number: 9711114
    Abstract: A display apparatus and a method of displaying via the display apparatus. The display apparatus includes at least one context image projector or at least one context display for rendering a context image, wherein an angular width of a projection of the rendered context image ranges from 40 degrees to 220 degrees, and at least one focus image projector for rendering a focus image, wherein an angular width of a projection of the rendered focus image ranges from 5 degrees to 60 degrees. An arrangement is made to combine the projection of the rendered focus image with the projection of the rendered context image to create a visual scene.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: July 18, 2017
    Assignee: Varjo Technologies Oy
    Inventors: Urho Konttori, Klaus Melakari, Oiva Arvo Oskari Sahlsten
  • Patent number: 9710887
    Abstract: Disclosed is a display apparatus and a method of displaying, via the display apparatus. The display apparatus comprises at least one context display for rendering a context image, the at least one context display comprising at least one projection surface, and at least one focus image projector for rendering a focus image. An angular width of a projection of the rendered context image ranges from 40 degrees to 220 degrees. An angular width of a projection of the rendered focus image ranges from 5 degrees to 60 degrees. An arrangement is made to combine the projection of the rendered focus image with the projection of the rendered context image to create a visual scene.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 18, 2017
    Assignee: Varjo Technologies Oy
    Inventors: Oiva Arvo Oskari Sahlsten, Urho Konttori, Klaus Melakari
  • Patent number: 9007279
    Abstract: An apparatus including at least a first display including display pixels arranged as a first plurality of lines of display pixels; and a display controller configured to control display of an image by mapping at least a portion of the image to lines of display pixels of the first display. The display controller is configured to operate in a first mode or a second mode. In the first mode the display controller is configured to map images including N lines of image pixels to a first sub-set of the first plurality of lines of display pixels, including N lines of display pixels, and in the second mode the display controller is configured to map images including N lines of image pixels to a second sub-set of the first plurality of lines of display pixels, including N lines of display pixels. The second sub-set is offset from the first sub-set.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 14, 2015
    Assignee: Nokia Corporation
    Inventors: Vicente Calvo Alonso, Oiva Arvo Oskari Sahlsten
  • Publication number: 20130307877
    Abstract: An apparatus including at least a first display including display pixels arranged as a first plurality of lines of display pixels; and a display controller configured to control display of an image by mapping at least a portion of the image to lines of display pixels of the first display. The display controller is configured to operate in a first mode or a second mode. In the first mode the display controller is configured to map images including N lines of image pixels to a first sub-set of the first plurality of lines of display pixels, including N lines of display pixels, and in the second mode the display controller is configured to map images including N lines of image pixels to a second sub-set of the first plurality of lines of display pixels, including N lines of display pixels. The second sub-set is offset from the first sub-set.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 21, 2013
    Inventors: Vicente Calvo Alonso, Oiva Arvo Oskari Sahlsten