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公开(公告)号：US12181785B2
公开(公告)日：2024-12-31
申请号：US18395844
申请日：2023-12-26
Applicant: Lumus Ltd.
Inventor： Ronen Chriki , Eitan Ronen , Yochay Danziger , Shimon Grabarnik , Tsion Eisenfeld
Abstract: An image projector with a high optical efficiency projects an image at an arbitrary distance from an observer. The image projector includes an illumination module having at least one spatially coherent light source; a phase image generator with an array of optical phase shifting elements; an electronic image controller connected electrically to the phase image generator; and a waveguide which includes at least one embedded partial reflector. The waveguide may be positioned either between the illumination module and the waveguide, or between the waveguide and the observer. The phase image generator may include phase shifts for canceling speckle, correcting optical aberrations, and/or compensating interference caused by light rays having different optical path lengths.
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公开(公告)号：US11747635B2
公开(公告)日：2023-09-05
申请号：US17729241
申请日：2022-04-26
Applicant: LUMUS LTD
Inventor： Yochay Danziger , Eitan Ronen
CPC classification number: G02B27/0179 , A61B3/113 , A61B3/12 , G02B27/0093 , G02B27/0172 , G06V40/19 , G02B6/0011 , G02B2027/014 , G02B2027/0138 , G02B2027/0178 , G02B2027/0187
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.
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公开(公告)号：US12105279B2
公开(公告)日：2024-10-01
申请号：US17427963
申请日：2020-10-25
Applicant: Lumus Ltd.
Inventor： Shimon Grabarnik , Tsion Eisenfeld , Eitan Ronen , Ronen Chriki
CPC classification number: G02B27/0081 , G02B3/0056 , G02B3/06 , G02B27/0172 , G02B27/285 , G02B2027/011
Abstract: A display for providing an image to an eye of an observer is disclosed. An image generator provides image illumination corresponding to the image to a substrate having mutually-parallel major external surfaces for propagation within the substrate. An intermediate optical arrangement including at least one astigmatic optical element directs the image illumination from the image generator so as to propagate within the substrate in a first in-plane direction by internal reflection. A reflective optical arrangement having cylindrical optical power reflects the image illumination so as to propagate in a second in-plane direction by internal reflection. A coupling-out arrangement couples out the collimated image illumination towards an eye of an observer. The intermediate optical arrangement includes an element deployed to generate a corrective optical aberration that at least partially cancels out with a characteristic aberration introduced by the reflective optical arrangement.
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公开(公告)号：US12099214B2
公开(公告)日：2024-09-24
申请号：US17268967
申请日：2019-08-26
Applicant: LUMUS LTD.
Inventor： Eitan Ronen , Yochay Danziger , Jonathan Gelberg , Tsion Eisenfeld , Amir Shapira
CPC classification number: G02B5/003 , G02B6/0035 , G02B27/0172 , G02B6/005 , G02B2027/012
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.
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公开(公告)号：US12032195B1
公开(公告)日：2024-07-09
申请号：US18210145
申请日：2023-06-15
Applicant: Lumus Ltd.
Inventor： Tsion Eisenfeld , Yochay Danziger , Eitan Ronen , Ronen Chriki , Mordechai Gilo , Elad Sharlin
IPC: F21V8/00
CPC classification number: G02B6/0028 , G02B6/0055
Abstract: An optical device includes a first waveguide, having parallel first and second faces and parallel third and fourth faces forming a rectangular cross-section, that guides light by four-fold internal reflection and is associated with a coupling-out configuration that couples light out of the first waveguide into a second waveguide. The first or second face is subdivided into first and second regions having different optical characteristics. The optical device also includes a coupling-in configuration having a surface that transmits light into the first waveguide. The surface is deployed in association with a portion of the third or fourth face adjoining the second region such that an edge associated with the surface trims an input collimated image in a first dimension, and a boundary between the first and second regions trims the input collimated image in a second dimension to produce a trimmed collimated image that advances by four-fold internal reflection.
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Patent Agency Ranking
公开(公告)号：US11668933B2
公开(公告)日：2023-06-06
申请号：US17758612
申请日：2021-11-09
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Elad Sharlin
IPC: G02B27/01
CPC classification number: G02B27/01 , G02B27/017 , G02B27/0172 , G02B2027/0112 , G02B2027/0178
Abstract: A method of moderating chromaticity of ambient light in an environment reflected back into the environment by a component comprised in a lens of glasses through which a user of views the environment, the method comprising: determining a first set of tristimulus values that characterizes ambient light reflected by the component surface as a function of angle of reflection Θ in a bounded span of angles of reflection; determining a second set of tristimulus values for angles in the bounded span of angles so that light characterized by the second set of tristimulus values combined with light reflected by the component would be perceived substantially as white light; and providing an optical coating that reflects ambient light from the environment so that the reflected light is substantially characterized by the second set of tristimulus values.
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公开(公告)号：US12152994B2
公开(公告)日：2024-11-26
申请号：US17791923
申请日：2021-04-25
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Eitan Baibich , Elad Sharlin , Amir Shapira , Jonathan Gelberg , Netanel Goldstein , Elad Lavi
Abstract: Optical sample characterization facilitates measurement and testing at any angle in a full range of angles of light propagation through an optical sample, such as a coated glass plate, having a higher than air index of refraction. A rotatable assembly includes a cylinder having a hollow, and a receptacle including the hollow. The receptacle also contains a fluid with a known refractive index. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the fluid, to the optical sample, where light beam is transmitted and/or reflected, then exits the cylinder and is collected for analysis. Due at least in part to the fluid surrounding the optical sample, the optical sample can be rotated through a full range of angles (±90°, etc.) for full range testing of the optical sample.
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公开(公告)号：US12061080B1
公开(公告)日：2024-08-13
申请号：US18578616
申请日：2022-07-26
Applicant: LUMUS LTD.
Inventor： Jonathan Gelberg , Elad Sharlin , Eitan Ronen
IPC: G01B11/27
CPC classification number: G01B11/272
Abstract: Disclosed herein is a method for validating parallelism of internal facets of a sample. The method includes: (i) providing a sample including a light transmissive substrate and internal facets, nominally parallel and nominally inclined at an angle μnom relative to a flat surface of the sample; (ii) providing a prism having a substantially same refractive index as the substrate and including a flat, first surface and a flat, second surface, opposite to the first surface and inclined relative thereto at substantially the angle μnom; (iii) positioning the sample and the prism, such that the surface of the sample is parallel and adjacent to the second surface of the prism; (iv) projecting on the first surface of the prism, substantially normally thereto an incident light beam; (v) sensing light returned from the prism following reflection off the internal facets; and (vi) computing deviation from parallelism between the internal facets.
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公开(公告)号：US12055385B1
公开(公告)日：2024-08-06
申请号：US18579590
申请日：2022-07-26
Applicant: LUMUS LTD.
Inventor： Jonathan Gelberg , Elad Sharlin , Eitan Ronen
CPC classification number: G01B11/26 , G01B11/272 , G01M11/0242 , G01M11/35
Abstract: Disclosed herein is a method including: (i) providing a light transmissive sample including nominally parallel internal facets, which are about perpendicular to an external surface of the sample; (ii) providing an optical element having a refractive index about equal to that of the sample and including an external first surface and an external second surface acutely inclined relative thereto; (iii) positioning the second surface of the optical element adjacent to the first surface of the sample; (iv) impinging light beams on the first surface of the optical element, about normally thereto; (v) sensing light beams, which exit out of the sample following passage of the impinging light beams via the optical element, transmission thereof into the sample, reflection once off the internal facets, and exit out of the sample; and (vi) based on the sensed data, computing a deviation from parallelism between the internal facets.
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公开(公告)号：US12019249B2
公开(公告)日：2024-06-25
申请号：US17789196
申请日：2020-11-30
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Ronen Chriki , Naamah Levin , Lilya Lobachinsky
CPC classification number: G02B27/0179 , G02B6/42 , G02B6/4214 , G02B27/0101 , G02B27/0172 , G06F3/013 , H04N23/56 , G02B2027/0178 , G02B2027/0187
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.
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