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公开(公告)号：US20220004014A1
公开(公告)日：2022-01-06
申请号：US17290764
申请日：2019-11-07
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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公开(公告)号：US20250130434A1
公开(公告)日：2025-04-24
申请号：US19000925
申请日：2024-12-24
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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公开(公告)号：US20240402401A1
公开(公告)日：2024-12-05
申请号：US18804246
申请日：2024-08-14
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Eitan RONEN , Jonathan GELBERG , Tsion EISENFELD , Amir SHAPIRA
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：US20240369353A1
公开(公告)日：2024-11-07
申请号：US18770084
申请日：2024-07-11
Applicant: LUMUS LTD.
Inventor： Jonathan GELBERG , Elad SHARLIN , Eitan RONEN
IPC: G01B11/27
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：US20240361508A1
公开(公告)日：2024-10-31
申请号：US18762883
申请日：2024-07-03
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：US20240345408A1
公开(公告)日：2024-10-17
申请号：US18752871
申请日：2024-06-25
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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公开(公告)号：US20240255281A1
公开(公告)日：2024-08-01
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：US20240036333A1
公开(公告)日：2024-02-01
申请号：US18555520
申请日：2022-03-21
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Eitan RONEN , Elad SHARLIN
CPC classification number: G02B27/0172 , G02B5/1819 , G02B27/28 , G02B2027/0123
Abstract: A method for generating an image in a near-eye display may include dividing an image into first and second sub-images, sequentially transmitting the first sub-image and the second sub-image through a channel, extracting light corresponding to the first sub-image in a first polarization and light corresponding to the second sub-image in a second polarization, deflecting a first order of the light in the first polarization in a first direction, and deflecting an opposite order of the light in the second polarization in a opposite direction different from the first direction. The resulting image width corresponding to a wider field of view.
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公开(公告)号：US20230359034A1
公开(公告)日：2023-11-09
申请号：US18026138
申请日：2021-10-01
Applicant: Lumus Ltd.
Inventor： Eitan RONEN
CPC classification number: G02B27/0172 , G02B6/0013 , G02B6/0033 , G02B27/283 , G02B2027/0178
Abstract: An optical system (100) for directing an image towards a user for viewing includes a light-guide optical element (LOE) (10) having parallel major external surfaces (11a, 11b) for supporting propagation of an image by internal reflection, a coupling-out arrangement for coupling out the image towards an eye of the user, and a coupling-in aperture. An image projector (114) includes an image generator (32) for generating an image, collimating optics (31) for collimating the image, and an image conjugate generator (20, 33, 34). The image projector is coupled to the coupling-in aperture so as to introduce both the collimated image and its conjugate image into the LOE prior to the images impinging on either of major external surfaces. The image conjugate generator may be a second image generator (33), or may employ one or more reflecting surface (22, 23, 24, 34) non-contiguous with the major external surfaces of the LOE.
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公开(公告)号：US20230168519A1
公开(公告)日：2023-06-01
申请号：US18101607
申请日：2023-01-26
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Shimon GRABARNIK , Ronen CHRIKI , Eitan RONEN , Elad SHARLIN
CPC classification number: G02B27/143 , G02B27/145 , G02B27/0172 , G02B27/0189 , G02B2027/013
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.
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