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公开(公告)号：US11885966B2
公开(公告)日：2024-01-30
申请号：US17422491
申请日：2020-12-30
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Ronen Chriki , Tsion Eisenfeld
CPC classification number: G02B27/0172 , G02B6/0018 , G02B2027/0178
Abstract: An optical system provides two-stage expansion of an input optical aperture for a display based on a light-guide optical element. A first expansion is achieved using two distinct sets of mutually-parallel partially-reflecting surfaces, each set handing a different part of an overall field-of-view presented to the eye. In some cases, a single image projector provides image illumination to two sets of facets that are integrated into the LOE. In other cases, two separate projectors deliver image illumination corresponding to two different parts of the field-of-view to their respective sets of facets.
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公开(公告)号：US12013529B2
公开(公告)日：2024-06-18
申请号：US18303413
申请日：2023-04-19
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Elad Sharlin
IPC: G02B27/01
CPC classification number: G02B27/01 , G02B27/017 , G02B2027/0112 , G02B27/0172 , 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：US11947130B2
公开(公告)日：2024-04-02
申请号：US17290764
申请日：2019-11-07
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Motke Gilo
CPC classification number: G02B27/283 , G02B27/126 , G02B27/141 , G02B27/286
Abstract: A first dichroic beamsplitter is deployed in a first prism on a plane oblique to a light-wave entrance surface. A second dichroic beamsplitter is deployed in a second prism on a plane oblique to a light-wave entrance surface such that polarized light in a first polarization state relative to the first dichroic beamsplitter is in a second polarization state relative to the second dichroic beamsplitter. The first dichroic beamsplitter transmits polarized light of a first color in the first polarization state relative to the first dichroic beamsplitter, and reflects polarized light of a second color in the first polarization state relative to the first dichroic beamsplitter. The second dichroic beamsplitter transmits polarized light of the first and second colors in a second polarization state relative to the second dichroic beamsplitter, and reflects polarized light of a third color in the first polarization state relative to the second dichroic beamsplitter.
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公开(公告)号：US11892761B2
公开(公告)日：2024-02-06
申请号：US17783795
申请日：2020-11-29
Applicant: Lumus Ltd.
Inventor： Ronen Chriki , Eitan Ronen , Yochay Danziger , Shimon Grabarnik , Tsion Eisenfeld
CPC classification number: G03B21/147 , G02B27/48 , G03B21/2033 , G03B21/2066
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：US11796729B2
公开(公告)日：2023-10-24
申请号：US18027105
申请日：2022-02-24
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：US11789264B2
公开(公告)日：2023-10-17
申请号：US18018082
申请日：2022-07-04
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Ronen Chriki , Yochay Danziger
CPC classification number: G02B27/0101 , G02B6/0031 , G02B6/0076 , G02B6/0035 , G02B2027/0123
Abstract: A display for providing an image to an eye of a user has a compound light-guide arrangement formed from juxtaposed first and second slab waveguides (10, 20). Image illumination from a projector (100) is introduced, part into each waveguide, so as to propagate by internal reflection within the waveguide. A coupling-out configuration of the first waveguide (10) includes a first set of obliquely-angled internal partially-reflecting surfaces (11) in a first region of the compound light-guide arrangement for coupling-out a first part of the field of view, and a coupling-out configuration of the second waveguide (20) includes a second set of obliquely-angled internal partially-reflecting surfaces (21) in a second region of the compound light-guide arrangement, at least partially non-overlapping with the first region, for coupling-out a second part of the field of view.
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公开(公告)号：US12271000B2
公开(公告)日：2025-04-08
申请号：US18294851
申请日：2022-09-02
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Eitan Ronen
Abstract: An optical system may include (a) a light-guide optical element (LOE) formed from transparent material and having at least first and second mutually-parallel major external surfaces for supporting propagation of an image by internal reflection at the first and second major external surfaces, the LOE having a coupling-out arrangement for coupling out the image towards an eye of the user, the LOE having a coupling-in arrangement; and (b) an image projector comprising an image generator for generating an image and an image conjugate generator for generating a conjugate image, the image generator and the image conjugate generator disposed such as to project the image and the conjugate image, respectively, from directions not directly in front of the LOE.
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公开(公告)号：US12222508B2
公开(公告)日：2025-02-11
申请号：US18017865
申请日：2021-08-24
Applicant: LUMUS LTD.
Inventor： Eitan Ronen , Ronen Chriki , Jonathan Gelberg
Abstract: Disclosed herein is an optical assembly for generating a color image using white light as source. The optical assembly includes a broadband white light source array, a color filter assembly configured to allow selectively filtering therethrough light in each of three additive primary colors, and a control unit. The control unit is configured to actuate light sources in the light source array according to three intensity maps. Each of the intensity maps corresponds to one of the three additive primary colors. The control unit is further configured to synchronize operations of the light source array and the color filter arrangement such that, when light sources in the light source array are actuated according to one of the three intensity maps, the color filter arrangement filters therethrough light at the additive primary color to which the intensity map corresponds.
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公开(公告)号：US12181687B2
公开(公告)日：2024-12-31
申请号：US18586678
申请日：2024-02-26
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Motke Gilo
Abstract: A first dichroic beamsplitter is deployed in a first prism on a plane oblique to a light-wave entrance surface. A second dichroic beamsplitter is deployed in a second prism on a plane oblique to a light-wave entrance surface such that polarized light in a first polarization state relative to the first dichroic beamsplitter is in a second polarization state relative to the second dichroic beamsplitter. The first dichroic beamsplitter transmits polarized light of a first color in the first polarization state relative to the first dichroic beamsplitter, and reflects polarized light of a second color in the first polarization state relative to the first dichroic beamsplitter. The second dichroic beamsplitter transmits polarized light of the first and second colors in a second polarization state relative to the second dichroic beamsplitter, and reflects polarized light of a third color in the first polarization state relative to the second dichroic beamsplitter.
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20.发明授权公开(公告)号：US12147054B2
公开(公告)日：2024-11-19
申请号：US18433616
申请日：2024-02-06
Applicant: Lumus Ltd.
Inventor： Eitan Ronen
Abstract: A light-transmitting substrate has parallel surfaces deployed with a first of the parallel surfaces in facing relation to an eye. An optical element is associated with the first surface and applies optical power to incident light of a first type so as to collimate the incident light, and applies substantially no optical power to incident light of a second type. An optical coupling configuration is associated with the substrate and is configured for coupling-in a proportion of collimated light of the first type incident on the first surface so as to propagate within the substrate, and for coupling-out a proportion of light of the second type propagating within the substrate. Optics associated with the substrate convert collimated light of the first type into converging beams of light, which are sensed by an optical sensor. A processor derives current gaze direction of the eye by processing signals from the optical sensor.
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