Patents by Inventor Jyrki Sakari Kimmel
Jyrki Sakari Kimmel 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).
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Patent number: 11927759Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: GrantFiled: December 22, 2022Date of Patent: March 12, 2024Inventor: Jyrki Sakari Kimmel
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Publication number: 20230324682Abstract: 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.Type: ApplicationFiled: August 23, 2021Publication date: October 12, 2023Inventors: Toni JARVENPAA, Jyrki Sakari KIMMEL, Marja SALMIMAA
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Publication number: 20230131587Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Applicant: Magic Leap, Inc.Inventor: Jyrki Sakari Kimmel
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Patent number: 11567324Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: GrantFiled: January 21, 2020Date of Patent: January 31, 2023Assignee: Magic Leap, Inc.Inventor: Jyrki Sakari Kimmel
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Patent number: 11475823Abstract: An apparatus has a display including a plurality of pixels; and control circuitry configured to selectively control transparency states of the plurality of pixels of the display. The control circuitry includes a multiplicity of cells. A transparency state of one or more pixels is controlled by a state of an associated cell. A cell is configured to provide a propagation signal dependent upon a state of that cell to physically adjacent cells and is configured to receive propagation signals provided by physically adjacent cells. The state of the cell is controllable via addressing and is controllable via the received propagation signals.Type: GrantFiled: March 20, 2018Date of Patent: October 18, 2022Assignee: Nokia Technologies OyInventors: Jyrki Sakari Kimmel, Marja Salmimaa, Toni Jarvenpaa
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Publication number: 20200394949Abstract: An apparatus has a display comprising including a plurality of pixels; and control circuitry configured to selectively control transparency states of the plurality of pixels of the display. The control circuitry comprises includes a multiplicity of cells. A transparency state of one or more pixels is controlled by a state of an associated cell. A cell is configured to provide a propagation signal dependent upon a state of that cell to physically adjacent cells and is configured to receive propagation signals provided by physically adjacent cells.Type: ApplicationFiled: March 20, 2018Publication date: December 17, 2020Inventors: Jyrki Sakari KIMMEL, Marja SALMIMAA, Toni JARVENPAA
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Patent number: 10768423Abstract: An apparatus and a method are provided. An apparatus, including a first display arrangement; an exit pupil expanding light guide arrangement including an in-coupling region and an out-coupling region, the in-coupling region being configured to in-couple first light from the first display arrangement, and the out-coupling region being configured to out-couple the first light towards a user; and a second display arrangement arranged to transmit second light, through the exit pupil expanding light guide arrangement at the out-coupling region, towards the user.Type: GrantFiled: November 13, 2017Date of Patent: September 8, 2020Assignee: Nokia Technologies OyInventors: Jyrki Sakari Kimmel, Marja Salmimaa
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Publication number: 20200159024Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: ApplicationFiled: January 21, 2020Publication date: May 21, 2020Applicant: Magic Leap, Inc.Inventor: Jyrki Sakari Kimmel
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Patent number: 10616453Abstract: An audio and visual system and a wearable device that incorporates an audio and visual system are provided. The audio and visual system may include a camera sensor and a mask overlying the camera sensor and spaced therefrom so as to at least in part define a first cavity between the camera sensor and the mask. The mask includes a plurality of areas including a plurality of opaque areas and a plurality of areas that are acoustically transparent. The audio and visual system also includes an audio transducer in acoustic communication with the first cavity and configured to generate or receive acoustic signals via the mask. The wearable device includes the audio and visual system as well as a housing in which the audio and visual system is at least partially disposed.Type: GrantFiled: January 11, 2017Date of Patent: April 7, 2020Assignee: Nokia Technologies OyInventors: Miikka Tapani Vilermo, Antero Tossavainen, Jyrki Sakari Kimmel
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Patent number: 10578870Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: GrantFiled: July 26, 2017Date of Patent: March 3, 2020Assignee: Magic Leap, Inc.Inventor: Jyrki Sakari Kimmel
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Publication number: 20190033592Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.Type: ApplicationFiled: July 26, 2017Publication date: January 31, 2019Inventor: Jyrki Sakari Kimmel
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Publication number: 20180198959Abstract: An audio and visual system and a wearable device that incorporates an audio and visual system are provided. The audio and visual system may include a camera sensor and a mask overlying the camera sensor and spaced therefrom so as to at least in part define a first cavity between the camera sensor and the mask. The mask includes a plurality of areas including a plurality of opaque areas and a plurality of areas that are acoustically transparent. The audio and visual system also includes an audio transducer in acoustic communication with the first cavity and configured to generate or receive acoustic signals via the mask. The wearable device includes the audio and visual system as well as a housing in which the audio and visual system is at least partially disposed.Type: ApplicationFiled: January 11, 2017Publication date: July 12, 2018Inventors: Miikka Tapani Vilermo, Antero Tossavainen, Jyrki Sakari Kimmel
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Publication number: 20180143437Abstract: An apparatus and a method are provided. An apparatus, including a first display arrangement; an exit pupil expanding light guide arrangement including an in-coupling region and an out-coupling region, the in-coupling region being configured to in-couple first light from the first display arrangement, and the out-coupling region being configured to out-couple the first light towards a user; and a second display arrangement arranged to transmit second light, through the exit pupil expanding light guide arrangement at the out-coupling region, towards the user.Type: ApplicationFiled: November 13, 2017Publication date: May 24, 2018Inventors: Jyrki Sakari Kimmel, Marja Salmimaa
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Patent number: 9200779Abstract: An apparatus including a three-dimensional display, for displaying volumetric images, including a three-dimensional non linear photoluminescent medium defining a display volume and including nanostructures distributed throughout the display volume; and a scanner configured to scan an output volume, where a first photon flux and a second photon flux meet, in three dimensions within the display volume.Type: GrantFiled: May 25, 2010Date of Patent: December 1, 2015Assignee: Nokia Technologies OyInventors: Tapani Kalervo Levola, Jyrki Sakari Kimmel
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Publication number: 20130170177Abstract: An apparatus including a three-dimensional display, for displaying volumetric images, including a three-dimensional non linear photoluminescent medium defining a display volume and including nanostructures distributed throughout the display volume; and a scanner configured to scan an output volume, where a first photon flux and a second photon flux meet, in three dimensions within the display volume.Type: ApplicationFiled: May 25, 2010Publication date: July 4, 2013Applicant: Nokia CorporationInventors: Tapani Kalervo Levola, Jyrki Sakari Kimmel