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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：US20230350204A1
公开(公告)日：2023-11-02
申请号：US18039260
申请日：2022-03-01
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Tsion EISENFELD , Elad SHARLIN
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/283
Abstract: An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupling prism (30) attached to the first major external surface (11) that projects an image injection surface. A reflective polarizing beam splitter (51) is deployed at an interface between the major external surface (11) and the coupling prism (30) parallel to the major external surfaces, to selectively transmit illumination from the coupling prism into the LOE while trapping light already within the LOE so as to propagate within the LOE by internal reflection.
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14.发明公开公开(公告)号：US20230305230A1
公开(公告)日：2023-09-28
申请号：US18028803
申请日：2022-04-11
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Kobi GREENSTEIN , Edgar FRIEDMANN , Elad SHARLIN
CPC classification number: G02B6/25 , G02B6/3863
Abstract: A stack has first and second faces and multiple LOEs that each has two parallel major surfaces and a first plurality of parallel internal facets oblique to the major surfaces. A first block has third and fourth faces and a second plurality of parallel internal facets. The first block and the stack are bonded such that the second face joins the third face and the first and second facets are non-parallel, forming a second block. The second block is cut at a plane passing through the first face, forming a first structure having an interfacing surface. A third block has fifth and sixth faces and a plurality of parallel internal reflectors. The third block and the first structure are bonded such that fifth face joins the interfacing surface and the internal reflectors are non-parallel to all the facets, forming a second structure. Compound LOEs are sliced-out from the second structure.
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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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Patent Agency Ranking
公开(公告)号：US20220357498A1
公开(公告)日：2022-11-10
申请号：US17417175
申请日：2021-02-02
Applicant: Lumus Ltd.
Inventor： Ido FUCHS , Edgar FRIEDMANN , Elad SHARLIN , Kobi GREENSTEIN , Lilach ZUARETZ , Tsion EISENFFELD , Shimon GRABARNIK , Amir SHAPIRA , Dror HERMONI
Abstract: A method for producing light-guide optical elements (LOEs) (16, 18, 56, 58) each having a set of mutually-parallel partially-reflecting surfaces (17) located between, and oriented non-parallel to, a pair of major external surfaces, and at least one region (30a, 30b, 30c) without partially-reflecting surfaces. The method includes bonding together parallel-faced plates (4) at interfaces to form a stack (42) of plates with partially-reflecting coatings between them. The stack is cut and polished to form a boundary plane (48, 48a, 48b) intersecting the interfaces, and a block (50, 50a, 50b) of transparent material is bonded to the stack. The resulting precursor structure (52, 52′) is sliced along parallel planes to form slices, each containing a part of the stack for the active region of the LOE and a part of the block.
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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
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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公开(公告)号：US20250155721A1
公开(公告)日：2025-05-15
申请号：US19025922
申请日：2025-01-16
Applicant: LUMUS LTD.
Inventor： Ronen CHRIKI , Elad SHARLIN
IPC: G02B27/01 , G02B3/08 , G02F1/1335
Abstract: An apparatus includes a waveguide and one or more partially reflective surfaces embedded inside the waveguide, wherein each of the one or more partially reflective surfaces includes a multi-layer coating structure, wherein a first portion of the multi-layer coating structure induces an overall phase shift of light propagating through the first portion of the multi-layer coating structure and wherein a second portion of the multi-layer coating structure is selected to decrease the overall phase shift.
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公开(公告)号：US20250155628A1
公开(公告)日：2025-05-15
申请号：US19023880
申请日：2025-01-16
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Elad SHARLIN
Abstract: An optical device includes a lightguide having a first pair of external surfaces parallel to each other, and at least two sets of facets. Each of the sets including a plurality of partially reflecting facets parallel to each other, and between the first pair of external surfaces. In each of the sets of facets, the respective facets are at an oblique angle relative to the first pair of external surfaces, and at a non-parallel angle relative to another of the sets of facets. The optical device is particularly suited for optical aperture expansion.
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公开(公告)号：US20240126085A1
公开(公告)日：2024-04-18
申请号：US18390074
申请日：2023-12-20
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Tsion EISENFELD , Elad SHARLIN
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/283
Abstract: An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupling prism (30) attached to the first major external surface (11) that projects an image injection surface. A reflective polarizing beam splitter (51) is deployed at an interface between the major external surface (11) and the coupling prism (30) parallel to the major external surfaces, to selectively transmit illumination from the coupling prism into the LOE while trapping light already within the LOE so as to propagate within the LOE by internal reflection.
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