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

IPC: G02B27/00 ,  G06F3/01 ,  G02B5/32

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

公开(公告)号：US20190219818A1

公开(公告)日：2019-07-18

申请号：US16250105

申请日：2019-01-17

Applicant: Tobii AB

Inventor： Fredrik Mattinson

IPC: G02B27/00 ,  G02B27/01 ,  G02B27/28 ,  G06F3/01

CPC classification number: G02B27/0093 ,  G02B27/0179 ,  G02B27/283 ,  G02B27/286 ,  G02B2027/0187 ,  G06F3/013

Abstract: A display system may include a display, a beam splitter, a mirror, and an eye tracking system. The beam splitter may receive display light from the display in a first direction and direct at least some of the display light towards the mirror. The mirror may reflect at least some of the display light from the beam splitter back towards the beam splitter, where the beam splitter may direct at least some of the reflected display light in a second direction. The eye tracking system may comprise a light source for providing tracking light for reflection at an eye. The beam splitter may receive reflected tracking light back from the second direction and direct at least some of that light towards the eye tracking system. The eye tracking system may comprise a camera for receiving at least some of the reflected tracking light directed by the beam splitter.

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

IPC: G02B27/00 ,  G02B5/32 ,  G06F3/01

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.