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公开(公告)号：US12046165B2
公开(公告)日：2024-07-23
申请号：US18349362
申请日：2023-07-10
Applicant: LUMUS LTD.
Inventor： Shimon Grabarnik , Tsion Eisenfeld , Elad Sharlin
CPC classification number: G09G3/001 , G02F1/011 , G02F2201/06 , G02F2203/01 , G02F2203/02 , G09G2320/0257 , G09G2354/00 , G09G2360/144
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.
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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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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：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：US11385393B2
公开(公告)日：2022-07-12
申请号：US16963535
申请日：2018-06-26
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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Patent Agency Ranking
公开(公告)号：US12283209B2
公开(公告)日：2025-04-22
申请号：US18760290
申请日：2024-07-01
Applicant: LUMUS LTD.
Inventor： Shimon Grabarnik , Tsion Eisenfeld , Elad Sharlin
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.
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公开(公告)号：US12216284B2
公开(公告)日：2025-02-04
申请号：US18390074
申请日：2023-12-20
Applicant: Lumus Ltd.
Inventor： Ronen Chriki , Tsion Eisenfeld , Elad Sharlin
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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公开(公告)号：US12007596B2
公开(公告)日：2024-06-11
申请号：US18218624
申请日：2023-07-06
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Elad Sharlin
CPC classification number: G02B6/0035 , G02B6/0011 , G02B27/0172
Abstract: A transparent substrate has two parallel faces and guides collimated image light by internal reflection. A first set of internal surfaces is deployed within the substrate oblique to the parallel faces. A second set of internal surfaces is deployed within the substrate parallel to, interleaved and in overlapping relation with the first set of internal surfaces. Each of the internal surfaces of the first set includes a first coating having a first reflection characteristic to be at least partially reflective to at least a first subset of components of incident light. Each of the internal surfaces of the second set includes a second coating having a second reflection characteristic complementary to the first reflection characteristic to be at least partially reflective to at least a second subset of components of incident light. The sets of internal surfaces cooperate to reflect all components of light from the first and second subsets.
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公开(公告)号：US11841526B2
公开(公告)日：2023-12-12
申请号：US18004284
申请日：2022-07-01
Applicant: Lumus Ltd.
Inventor： Elad Sharlin , Ronen Chriki , Yochay Danziger
CPC classification number: G02B6/0055 , G02B27/0172
Abstract: A method for generating an image in a near-eye display may include operating a light source to emit the image as incident light. The light source may be configured such that incident light as received by the light reflecting elements compensates for the chromatic reflectance of the light reflecting elements. The method may include coupling the incident light into a light-transmitting substrate, thereby trapping the light between first and second major surfaces of the light-transmitting substrate by total internal reflection and coupling the light out of the substrate by the light reflecting elements having chromatic reflectance.
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公开(公告)号：US11662311B2
公开(公告)日：2023-05-30
申请号：US17543977
申请日：2021-12-07
Applicant: Lumus Ltd.
Inventor： Chaim Aldaag , Tzofia Lavi , Dror Hermoni , Jonathan Gelberg , Yosef Lavian , Netanel Goldstein , Elad Sharlin , Elad Lavi , Kobi Greenstein , Amir Shapira , Mordechai Gilo , Tsion Eisenfeld
CPC classification number: G01N21/59 , G01N21/8422 , G01N2021/8427 , G02B27/30
Abstract: Optical sample characterization facilitates measurement and testing such as transmittance or reflectance at any discrete angle in a full range of angles of light propagation through 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 having a refractive index matching the refractive index of the cylinder and coated plate. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the index matching fluid through the coating, the coated glass plate, the fluid, the other side of the cylinder, and is collected for analysis. Due at least in part to the index matching fluid surrounding the coated plate, the plate can be rotated through a full range of angles (±90°, etc.) for full range testing of the coating.
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