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公开(公告)号：US20220179207A1
公开(公告)日：2022-06-09
申请号：US17677575
申请日：2022-02-22
Applicant: Tobii AB
Inventor： Daniel Torneus , Peter Schef , Magnus Arvidsson , Peter Blixt , Fredrik Mattinson
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light
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公开(公告)号：US20210097319A1
公开(公告)日：2021-04-01
申请号：US17034631
申请日：2020-09-28
Applicant: Tobii AB
Inventor： Magnus Arvidsson
Abstract: The present disclosure generally relates to the field of eye tracking systems. An eye tracking system is provided. The eye tracking system comprises an illuminator arrangement, including at least one light source, configured to illuminate an eye of a user. The eye tracking system is configured to enable a reduction of reflections from an optic arrangement (e.g., a pair of glasses) that is located in a light beam path between the illuminator arrangement and the eye when the eye tracking system is in use. The illuminator arrangement is configured to emit p-polarized light to be incident on a surface of the optic arrangement at an angle corresponding to, or substantially corresponding to, Brewster's angle.
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公开(公告)号：US11256087B2
公开(公告)日：2022-02-22
申请号：US16456805
申请日：2019-06-28
Applicant: Tobii AB
Inventor： Daniel Tornèus , Peter Schef , Magnus Arvidsson , Peter Blixt , Fredrik Mattinson
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light.
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Patent Agency Ranking
公开(公告)号：US20200159012A1
公开(公告)日：2020-05-21
申请号：US16456805
申请日：2019-06-28
Applicant: Tobii AB
Inventor： Daniel Tornèus , Peter Schef , Magnus Arvidsson , Peter Blixt
Abstract: The disclosure relates to an eye tracking device for tracking movements of an eye comprising, a viewing plane for displaying a projection of an image to the eye of a user, an image module placed on a same side of the viewing plane as the eye, at least one illuminator for illuminating the eye, a control unit adapted to receive an image captured by the image module, and calculate a viewing angle of the eye, a holographic optical element (HOE), wherein a HOE is placed between the eye and the viewing plane, wherein the image module is adapted to capture an image of the HOE, and wherein the HOE is adapted to direct at last a first portion of incident light reflected from the eye, in a first angle towards the image module, the first angle being different from an angle of the incidence of the incident light
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公开(公告)号：US20190253700A1
公开(公告)日：2019-08-15
申请号：US16232398
申请日：2018-12-26
Applicant: Tobii AB
Inventor： Daniel Tornéus , Torbjörn Sundberg , Magnus Arvidsson
CPC classification number: H04N17/002 , G02B27/0093 , G06F3/013 , G06T7/80 , G06T2207/30244 , H04N5/2256
Abstract: In one embodiment, a wearable apparatus is provided which may include a holographic film disposed on the wearable apparatus, an eye tracking device including an image sensor and an illuminator, and one or more processors. The processors may be configured to activate the illuminator to illuminate the holographic film and capture, with the image sensor, an image of at least a portion of the holographic film while the holographic film is illuminated. The processors may also be configured to determine a characteristic of the holographic film based on the image and determine, based on the characteristic, a location or an orientation of the image sensor relative to the holographic film. The processors may further be configured to change, based on the location or the orientation of the image sensor relative to the holographic film, at least one calibration parameter of the image sensor.
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公开(公告)号：US11966047B2
公开(公告)日：2024-04-23
申请号：US17034631
申请日：2020-09-28
Applicant: Tobii AB
Inventor： Magnus Arvidsson
CPC classification number: G02B27/0093 , G02B27/283 , G02B27/288 , G06V40/18 , G06V40/19 , G06V40/193
Abstract: The present disclosure generally relates to the field of eye tracking systems. An eye tracking system is provided. The eye tracking system comprises an illuminator arrangement, including at least one light source, configured to illuminate an eye of a user. The eye tracking system is configured to enable a reduction of reflections from an optic arrangement (e.g., a pair of glasses) that is located in a light beam path between the illuminator arrangement and the eye when the eye tracking system is in use. The illuminator arrangement is configured to emit p-polarized light to be incident on a surface of the optic arrangement at an angle corresponding to, or substantially corresponding to, Brewster's angle.
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公开(公告)号：US11665333B2
公开(公告)日：2023-05-30
申请号：US16917657
申请日：2020-06-30
Applicant: Tobii AB
Inventor： Daniel Tornéus , Torbjörn Sundberg , Magnus Arvidsson
CPC classification number: H04N17/002 , G02B27/0093 , G06F3/012 , G06F3/013 , G06T7/50 , G06T7/80 , H04N23/56 , G02B2027/0138 , G06T2207/30168 , G06T2207/30204 , G06T2207/30244
Abstract: In one embodiment, a wearable apparatus is provided which may include a holographic film disposed on the wearable apparatus, an eye tracking device including an image sensor and an illuminator, and one or more processors. The processors may be configured to activate the illuminator to illuminate the holographic film and capture, with the image sensor, an image of at least a portion of the holographic film while the holographic film is illuminated. The processors may also be configured to determine a characteristic of the holographic film based on the image and determine, based on the characteristic, a location or an orientation of the image sensor relative to the holographic film. The processors may further be configured to change, based on the location or the orientation of the image sensor relative to the holographic film, at least one calibration parameter of the image sensor.
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公开(公告)号：US20210076026A1
公开(公告)日：2021-03-11
申请号：US16917657
申请日：2020-06-30
Applicant: Tobii AB
Inventor： Daniel Tornéus , Torbjörn Sundberg , Magnus Arvidsson
Abstract: In one embodiment, a wearable apparatus is provided which may include a holographic film disposed on the wearable apparatus, an eye tracking device including an image sensor and an illuminator, and one or more processors. The processors may be configured to activate the illuminator to illuminate the holographic film and capture, with the image sensor, an image of at least a portion of the holographic film while the holographic film is illuminated. The processors may also be configured to determine a characteristic of the holographic film based on the image and determine, based on the characteristic, a location or an orientation of the image sensor relative to the holographic film. The processors may further be configured to change, based on the location or the orientation of the image sensor relative to the holographic film, at least one calibration parameter of the image sensor.
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