公开(公告)号：US20220357583A1

公开(公告)日：2022-11-10

申请号：US17789196

申请日：2020-11-30

Applicant: Lumus Ltd.

Inventor： Eitan RONEN ,  Ronen CHRIKI ,  Naamah LEVIN ,  Lilya LOBACHINSKY

IPC: G02B27/01 ,  G02B6/42 ,  G06F3/01 ,  H04N5/225

Abstract: A light-transmitting substrate has at least two major surfaces and is deployed with a first of the major surfaces in facing relation to an eye of a viewer. A light redirecting arrangement is associated with the light-transmitting substrate and deflects light from the eye toward an optical sensor that senses light, such that the light deflection occurs at the light-transmitting substrate and the deflected light that reaches the optical sensor is unguided by the light-transmitting substrate. A processor derives current gaze direction of the eye by processing signals from the optical sensor.

公开(公告)号：US20220269098A1

公开(公告)日：2022-08-25

申请号：US17640004

申请日：2021-08-23

Applicant: Lumus Ltd.

Inventor： Yochay DANZIGER ,  Shimon GRABARNIK ,  Ronen CHRIKI ,  Eitan RONEN ,  Elad SHARLIN

IPC: G02B27/14 ,  G02B27/01

Abstract: An optical system employs a waveguide including a first set of partially-reflecting surfaces (“facets”) for progressively redirecting image illumination propagating from a coupling-in region towards a second region, and a second set of facets in the second region for progressively coupling-out the redirected image illumination towards the eye of a viewer. The first set of facets includes at least a first facet close to the coupling-in region, a third facet fare from the coupling-in region, and a second facet located on a medial plane between the first and the third facets. The second facet is located in a subregion of the medial plane such that image illumination propagating from the coupling-in region to the third facet passes through the medial plane without passing through the second facet.

公开(公告)号：US20210271006A1

公开(公告)日：2021-09-02

申请号：US17268967

申请日：2019-08-26

Applicant: LUMUS LTD.

Inventor： Eitan RONEN ,  Yochay DANZIGER ,  Jonathan GELBERG ,  Tsion EISENFELD ,  Amir SHAPIRA

IPC: G02B5/00 ,  G02B27/01 ,  F21V8/00

Abstract: A near-eye display includes a light-guide optical element (LOE) (10) having first and second major external surfaces (11A, 11B) that are planar and mutually parallel. An image projector (2) introduces into the LOE illumination corresponding to an image so that the illumination propagates within said LOE by internal reflection at the major external surfaces. A coupling-out arrangement couples the illumination out of the LOE towards the eye of the observer. The coupling-out arrangement may be a set of mutually-parallel, partially-reflective surfaces (12A) deployed at an oblique angle within the LOE. Various arrangements for suppressing reflections of ambient light sources include obstructing baffles oriented so as to avoid reduction of peripheral field of view, various non-reflective coatings and various deployments of polarization filters.

公开(公告)号：US20210063733A1

公开(公告)日：2021-03-04

申请号：US16980527

申请日：2019-05-23

Applicant: Lumus Ltd.

Inventor： Eitan RONEN

IPC: G02B27/00 ,  F21V8/00 ,  G02B27/01 ,  G02B6/32

Abstract: An optical system includes a light-guide optical element (LOE) (100) having a pair of parallel major external surfaces (102, 104) and a set of mutually-parallel reflector surfaces (106a, 106b, 106c) obliquely angled within the LOE. At least one of the reflector surfaces has high reflectivity for angles of incidence above 60 degrees to the normal and partial reflectivity for angles of incidence less than 35 degrees to the normal.

公开(公告)号：US20200241308A1

公开(公告)日：2020-07-30

申请号：US16846633

申请日：2020-04-13

Applicant: LUMUS Ltd.

Inventor： Yochay DANZIGER ,  Eitan RONEN

IPC: G02B27/01 ,  G06K9/00 ,  G02B27/00 ,  A61B3/12 ,  A61B3/113

Abstract: An apparatus (100) for deriving a gaze direction of a human eye (150) includes a light-guide optical element (LOE) (120) having pair of parallel faces (104a), (104b) deployed in facing relation to the eye (150). A coupling-in configuration, such as a set of partially-reflective surfaces (145), is associated with LOE (120) and configured for coupling-in a proportion of light incident on face (104a) so as to propagate within the LOE. Focusing optics (106) associated with LOE (120) converts sets of parallel light rays propagating within the LOE into converging beams of captured light which are sensed by an optical sensor (125). A processing system (108) processes signals from the optical sensor (125) to derive a current gaze direction of the eye. Despite the aperture-combining effect of the LOE, retinal images can be effectively recovered as the only image information brought to focus on the optical sensor.

公开(公告)号：US20190056600A1

公开(公告)日：2019-02-21

申请号：US16070782

申请日：2017-12-31

Applicant: LUMUS LTD

Inventor： Yochay DANZIGER ,  Eitan RONEN

IPC: G02B27/01 ,  A61B3/113 ,  A61B3/12

Abstract: An apparatus (100) for deriving a gaze direction of a human eye (150) includes a light-guide optical element (LOE) (120) having pair of parallel faces (104a), (104b) deployed in facing relation to the eye (150). A coupling-in configuration, such as a set of partially-reflective surfaces (145), is associated with LOE (120) and configured for coupling-in a proportion of light incident on face (104a) so as to propagate within the LOE. Focusing optics (106) associated with LOE (120) converts sets of parallel light rays propagating within the LOE into converging beams of captured light which are sensed by an optical sensor (125). A processing system (108) processes signals from the optical sensor (125) to derive a current gaze direction of the eye. Despite the aperture-combining effect of the LOE, retinal images can be effectively recovered as the only image information brought to focus on the optical sensor.