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公开(公告)号：US20170363799A1
公开(公告)日：2017-12-21
申请号：US15538307
申请日：2015-12-23
Applicant: LUMUS LTD.
Inventor： Yuval Ofir , Edgar Friedmann , Yaakov Amitai
CPC classification number: G02B6/0065 , G02B6/00 , G02B6/0076 , G02B6/008 , G02B27/0172 , G02B2027/0123 , G02B2027/0125
Abstract: A method is described for fabricating an optical device that includes a light waves-transmitting substrate having at least two major surfaces and edges and a plurality of partially reflecting surfaces carried by the substrate, wherein the partially reflecting surfaces are parallel to each other and not parallel to any of the edges of the substrate. The method includes providing at least one transparent flat plate and plates having partially reflecting surfaces and optically attaching together the flat plates so as to create a stacked, staggered form. From the stacked, staggered form, at least one segment is sliced off by cutting across several plates and the segment is ground and polished to produce the light waves-transmitting substrate. The plates are optically attached to each other by an optically adhesive-free process.
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公开(公告)号：US11886008B2
公开(公告)日：2024-01-30
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 , B32B38/0004 , B32B2307/416 , B32B2551/00
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：US20220334366A1
公开(公告)日：2022-10-20
申请号：US17857253
申请日：2022-07-05
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Edgar Friedmann
Abstract: A light-guide device includes a light guiding element (13) with a number of faces, including two parallel faces (26), for guiding light by internal reflection. A transparent optical element (19) has an interface surface for attachment to a coupling surface (14) of the light guiding element, and is configured such that light propagating within the transparent optical element passes through the interface surface and the coupling surface (14) so as to propagate within the light guiding element (13). A non-transparent coating (15) is applied to at least part of one or more faces of the light guiding element (13), defining an edge (17) adjacent to, or overlapping, the coupling surface (14) of the light guiding element (13). A quantity of transparent adhesive is deployed between the coupling surface and the interface surface so as to form an optically transmissive interface. An overspill region 31 of the adhesive extends to, and overlaps, the edge (17).
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公开(公告)号：US12025806B1
公开(公告)日：2024-07-02
申请号：US18231282
申请日：2023-08-08
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Edgar Friedmann
CPC classification number: G02B27/0172
Abstract: A method of fabricating an optical aperture multiplier is provided. A slice and a first optical structure are obtained. The slice has external faces including a pair of parallel faces, and a first plurality of partially reflective internal surfaces oblique to the pair of parallel faces. The first optical structure has external surfaces including a planar coupling surface, and a second plurality of partially reflective internal surfaces oblique to the coupling surface. The slice is optically coupled with the first optical structure such that one of the faces of the pair of parallel faces is in facing relation with the coupling surface to form a second optical structure. At least one optical aperture multiplier is sliced from the second optical structure by cutting the second optical structure through at least two cutting planes perpendicular to the coupling surface. The optical aperture multiplier is preferably part of a near eye display augmented reality system.
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公开(公告)号：US11927734B2
公开(公告)日：2024-03-12
申请号：US17857253
申请日：2022-07-05
Applicant: LUMUS LTD.
Inventor： Yochay Danziger , Edgar Friedmann
CPC classification number: G02B17/086 , B29D11/00663 , B29D11/00875 , G02B1/10 , G02B6/34 , G02B17/00 , G02B6/30
Abstract: A light-guide device includes a light guiding element (13) with a number of faces, including two parallel faces (26), for guiding light by internal reflection. A transparent optical element (19) has an interface surface for attachment to a coupling surface (14) of the light guiding element, and is configured such that light propagating within the transparent optical element passes through the interface surface and the coupling surface (14) so as to propagate within the light guiding element (13). A non-transparent coating (15) is applied to at least part of one or more faces of the light guiding element (13), defining an edge (17) adjacent to, or overlapping, the coupling surface (14) of the light guiding element (13). A quantity of transparent adhesive is deployed between the coupling surface and the interface surface so as to form an optically transmissive interface. An overspill region 31 of the adhesive extends to, and overlaps, the edge (17).
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Patent Agency Ranking
公开(公告)号：US11933985B2
公开(公告)日：2024-03-19
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
CPC classification number: G02B27/0172 , G02B6/0028 , G02B6/0035 , G02B6/0065 , G02B6/0078 , G02B2027/0123 , G02B2027/0178
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：US11378791B2
公开(公告)日：2022-07-05
申请号：US16595506
申请日：2019-10-08
Applicant: LUMUS LTD.
Inventor： Yochay Danziger , Edgar Friedmann
Abstract: A light-guide device includes a light guiding element (13) with a number of faces, including two parallel faces (26), for guiding light by internal reflection. A transparent optical element (19) has an interface surface for attachment to a coupling surface (14) of the light guiding element, and is configured such that light propagating within the transparent optical element passes through the interface surface and the coupling surface (14) so as to propagate within the light guiding element (13). A non-transparent coating (15) is applied to at least part of one or more faces of the light guiding element (13), defining an edge (17) adjacent to, or overlapping, the coupling surface (14) of the light guiding element (13). A quantity of transparent adhesive is deployed between the coupling surface and the interface surface so as to form an optically transmissive interface. An overspill region 31 of the adhesive extends to, and overlaps, the edge (17).
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公开(公告)号：US10437031B2
公开(公告)日：2019-10-08
申请号：US15996476
申请日：2018-06-03
Applicant: LUMUS LTD
Inventor： Yochay Danziger , Edgar Friedmann
Abstract: A light-guide device includes a light guiding element (13) with a number of faces, including two parallel faces (26), for guiding light by internal reflection. A transparent optical element (19) has an interface surface for attachment to a coupling surface (14) of the light guiding element, and is configured such that light propagating within the transparent optical element passes through the interface surface and the coupling surface (14) so as to propagate within the light guiding element (13). A non-transparent coating (15) is applied to at least part of one or more faces of the light guiding element (13), defining an edge (17) adjacent to, or overlapping, the coupling surface (14) of the light guiding element (13). A quantity of transparent adhesive is deployed between the coupling surface and the interface surface so as to form an optically transmissive interface. An overspill region 31 of the adhesive extends to, and overlaps, the edge (17).
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公开(公告)号：US11822053B2
公开(公告)日：2023-11-21
申请号：US18011212
申请日：2022-05-12
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Edgar Friedmann
CPC classification number: G02B27/0101 , G02B27/0081 , G02B2027/0125
Abstract: A method of fabricating an optical aperture multiplier is provided. A slice and a first optical structure are obtained. The slice has external faces including a pair of parallel faces, and a first plurality of partially reflective internal surfaces oblique to the pair of parallel faces. The first optical structure has external surfaces including a planar coupling surface, and a second plurality of partially reflective internal surfaces oblique to the coupling surface. The slice is optically coupled with the first optical structure such that one of the faces of the pair of parallel faces is in facing relation with the coupling surface to form a second optical structure. At least one optical aperture multiplier is sliced from the second optical structure by cutting the second optical structure through at least two cutting planes perpendicular to the coupling surface. The optical aperture multiplier is preferably part of a near eye display augmented reality system.
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公开(公告)号：US11815709B2
公开(公告)日：2023-11-14
申请号：US17779663
申请日：2021-03-17
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Edgar Friedmann
CPC classification number: G02B6/0031 , G02B27/0172
Abstract: An optical device has a light-transmitting substrate, an optical coupling-out configuration, and an optical arrangement. The light-transmitting substrate has at least two major surfaces and guides light by internal reflection between the major surfaces. The optical coupling-out configuration couples the light, guided by internal reflection, out of the light-transmitting substrate toward an eye of a viewer. The optical arrangement is associated with at least one of the two major surfaces, and has a first optical element and a second optical element. The optical elements are optically coupled to each other to define an interface region associated with at least a portion of the coupling-out configuration. The interface region deflects light rays that emanate from an external scene that are incident to the optical arrangement at a given range of incident angles.
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