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公开(公告)号：US20240411137A1
公开(公告)日：2024-12-12
申请号：US18702394
申请日：2022-10-18
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD , Yochay DANZIGER , Jonathan GELBERG , Shimon GRABARNIK
Abstract: An optical system includes a light-guide optical element (LOE) formed from transparent material and having parallel major external surfaces. A projector is configured to project illumination corresponding to a collimated image into the LOE via a reflective coupling-in configuration that includes an image injection surface coplanar with the first major external surface, a reflector surface obliquely angled to the major external surfaces, and a partially-reflecting surface parallel to the reflector surface. A first part of the intensity of the illumination of the collimated image is reflected by the partially-reflecting surface and a second part of the intensity of the illumination of the collimated image is reflected by the reflector surface and transmitted by the partially-reflecting surface. Both parts of the intensity contribute to image illumination coupled into the LOE so as to propagate within the LOE by internal reflection at the major external surfaces.
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公开(公告)号：US20240355243A1
公开(公告)日：2024-10-24
申请号：US18760290
申请日：2024-07-01
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：US20240272361A1
公开(公告)日：2024-08-15
申请号：US18294836
申请日：2023-05-03
Applicant: Lumus Ltd.
Inventor： Elad SHARLIN , Tsion EISENFELD , Ronen CHRIKI
CPC classification number: G02B6/26 , G02B27/0172 , G02B2027/0178
Abstract: An optical system may include (1) a light-guide optical element 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, and (2) a mediating layer adjacent at least one of the at least first and second mutually-parallel major external surfaces, the mediating layer configured such that (1) reflectivity, averaged over the visible spectrum, of light coupled into the LOE and transmitted between the at least first and second mutually-parallel major external surfaces at angles below the critical angle is higher than the reflectivity that would have been expected absent the mediating layer and (2) reflectivity of purely white light lies closer to a purely white color point for an angular range from angles below the critical angle to the critical angle than the reflectivity that would have been expected absent the mediating layer.
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公开(公告)号：US20240155088A1
公开(公告)日：2024-05-09
申请号：US18413232
申请日：2024-01-16
Applicant: Lumus Ltd.
Inventor： Kobi GREENSTEIN , Tsion EISENFELD , Netanel GOLDSTEIN
CPC classification number: H04N9/3152 , G02B7/021 , G02B27/0176 , G02B27/0955 , G02B2027/0116 , G02B27/0172
Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.
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公开(公告)号：US20240022695A1
公开(公告)日：2024-01-18
申请号：US18373985
申请日：2023-09-28
Applicant: Lumus Ltd.
Inventor： Kobi GREENSTEIN , Tsion EISENFELD , Netanel GOLDSTEIN
CPC classification number: H04N9/3152 , G02B7/021 , G02B27/0176 , G02B27/0955 , G02B2027/0116 , G02B27/0172
Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.
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Patent Agency Ranking
公开(公告)号：US20230351930A1
公开(公告)日：2023-11-02
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：US20220019018A1
公开(公告)日：2022-01-20
申请号：US17312443
申请日：2020-11-10
Applicant: Lumus Ltd.
Inventor： Motke GILO , Tsion EISENFELD , Yochay DANZIGER
Abstract: A lightguide optical element (LOE) configured for polarization scrambling is provided. The LOE includes a transparent substrate having a first refractive index, the substrate having a pair of parallel external surfaces configured to propagate light within the LOE through total internal reflection (TIR), and a plurality of mutually parallel partially reflective internal surfaces, those being non-parallel to the pair of parallel external surfaces and configured to couple out said light to a viewer. The LOE further includes a first coating on at least one external surface of the substrate, the first coating being of a coating material having a second refractive index higher than the first refractive index; The LOE further includes an antireflective (AR) coating on at least one external surface of the substrate over the first coating.
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公开(公告)号：US20250155717A1
公开(公告)日：2025-05-15
申请号：US19019540
申请日：2025-01-14
Applicant: Lumus LTD.
Inventor： Yochay DANZIGER , Tsion EISENFELD
Abstract: Specific management of configuration of overlap of facets reduces non-uniformity in an image outcoupled toward a nominal point of observation. A waveguide including at least two parallel surfaces, first, middle, and last partially reflecting facets are configured such that in a geometrical projection of the facets onto one of the surfaces the facets overlap, preferably with adjacent facets overlapping and non-adjacent facets starts and ends coinciding along at least a portion of the waveguide.
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公开(公告)号：US20250155611A1
公开(公告)日：2025-05-15
申请号：US19026493
申请日：2025-01-17
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：US20250028177A1
公开(公告)日：2025-01-23
申请号：US18909978
申请日：2024-10-09
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD
Abstract: An optical system for directing image illumination injected at a coupling-in region towards a user for viewing includes a light-guide optical element (LOE) (12) with a pair of parallel major external surfaces (24). A first region (16) of the LOE contains a first set of partially-reflecting surfaces (17) oriented to redirect image illumination propagating within the LOE towards a second region of the LOE (18), which contains a second set of partially-reflecting surfaces (19) oriented to couple out the image illumination towards the user. The first set of partially-reflecting surfaces (17) extend across at least 95 percent of a thickness of the LOE, while the second set of partially-reflecting surfaces (19) are contained within a subsection of the thickness spanning less than 95 percent of the thickness, so that the second set of partially-reflecting surfaces (19) are excluded from one or both surface layers of the second region (18).
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