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公开(公告)号：US20240329395A1
公开(公告)日：2024-10-03
申请号：US18742121
申请日：2024-06-13
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
CPC classification number: G02B27/0101 , G02B5/3025 , G02B6/0015 , G02B6/0035 , G02B6/0056 , G02B27/0172 , G02B5/3058 , G02B2027/0118
Abstract: A light-guide optical element (LOE) includes a transparent substrate having two parallel major external surfaces for guiding light within the substrate by total internal reflection (TIR). Mutually parallel internal surfaces within the LOE are provided with a structural polarizer which is transparent to light polarized parallel to a primary polarization transmission axis, and is partially or fully reflective to light polarized perpendicular to the primary polarization transmission axis. By suitable orientation of the polarization axis of successive internal surfaces together with the polarization mixing properties of TIR and/or use of birefringent materials, it is possible to achieve the desired proportion of coupling-out of the image illumination from each successive facet.
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公开(公告)号：US20230359039A1
公开(公告)日：2023-11-09
申请号：US18224087
申请日：2023-07-20
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Daniel MICHAELS
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/0123
Abstract: A display and method for providing an image to an eye of a viewer is provided. The display comprises at least two projector assemblies. Each projector assembly comprises a lightguide optical element (LOE), and an image projector arrangement for generating a partial image and being deployed to introduce the partial image into the LOE for coupling out towards the eye of the viewer. The at least two projector assemblies cooperate to display the image to the eye of the viewer with partial overlap. The display further comprises a controller associated with the image projector arrangements and configured to reduce a pixel intensity of selected pixels in a region of partial overlap between the first and second part of the image so as to enhance a perceived uniformity of the image.
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公开(公告)号：US20250013055A1
公开(公告)日：2025-01-09
申请号：US18892815
申请日：2024-09-23
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Daniel MICHAELS
Abstract: A display and method for providing an image to an eye of a viewer is provided. The display comprises at least two projector assemblies. Each projector assembly comprises a light-guide optical element (LOE), and an image projector arrangement for generating a partial image and being deployed to introduce the partial image into the LOE for coupling out towards the eye of the viewer. The at least two projector assemblies cooperate to display the image to the eye of the viewer with partial overlap. The display further comprises a controller associated with the image projector arrangements and configured to reduce a pixel intensity of selected pixels in a region of partial overlap between the first and second part of the image so as to enhance a perceived uniformity of the image.
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公开(公告)号：US20240040090A1
公开(公告)日：2024-02-01
申请号：US18036917
申请日：2021-12-20
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
IPC: H04N9/31
CPC classification number: H04N9/3135 , H04N9/312 , H04N9/3152 , H04N9/3161
Abstract: An image projector employing a laser scanning illumination arrangement to illumination a spatial light modulator (SLM), where an angular beam spreader element, typically a diffuser or a micro-lens array (MLA), adjacent to, or in a conjugate plane with, the SLM, enhances filling of the exit aperture while minimizing impact on the precision of scanning of the laser illumination on the SLM. Also disclosed are various schemes for synchronous rolling update of the SLM during scanned illumination, and systems employing binary-switchable SLMs.
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公开(公告)号：US20220373810A1
公开(公告)日：2022-11-24
申请号：US17882897
申请日：2022-08-08
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
Abstract: A light-guide optical element (LOE) includes a transparent substrate having two parallel major external surfaces for guiding light within the substrate by total internal reflection (TIR). Mutually parallel internal surfaces within the LOE are provided with a structural polarizer which is transparent to light polarized parallel to a primary polarization transmission axis, and is partially or fully reflective to light polarized perpendicular to the primary polarization transmission axis. By suitable orientation of the polarization axis of successive internal surfaces together with the polarization mixing properties of TIR and/or use of birefringent materials, it is possible to achieve the desired proportion of coupling-out of the image illumination from each successive facet.
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Patent Agency Ranking
公开(公告)号：US20210055561A1
公开(公告)日：2021-02-25
申请号：US16981364
申请日：2019-05-16
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Daniel MICHAELS
Abstract: A display and method for providing an image to an eye of a viewer is provided. The display comprises at least two projector assemblies. Each projector assembly comprises a light-guide optical element (LOE), and an image projector arrangement for generating a partial image and being deployed to introduce the partial image into the LOE for coupling out towards the eye of the viewer. The at least two projector assemblies cooperate to display the image to the eye of the viewer with partial overlap. The display further comprises a controller associated with the image projector arrangements and configured to reduce a pixel intensity of selected pixels in a region of partial overlap between the first and second part of the image so as to enhance a perceived uniformity of the image.
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公开(公告)号：US20250155708A1
公开(公告)日：2025-05-15
申请号：US19024325
申请日：2025-01-16
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
Abstract: A light-guide optical element (LOE) includes a transparent substrate having two parallel major external surfaces for guiding light within the substrate by total internal reflection (TIR). Mutually parallel internal surfaces within the LOE are provided with a structural polarizer which is transparent to light polarized parallel to a primary polarization transmission axis, and is partially or fully reflective to light polarized perpendicular to the primary polarization transmission axis. By suitable orientation of the polarization axis of successive internal surfaces together with the polarization mixing properties of TIR and/or use of birefringent materials, it is possible to achieve the desired proportion of coupling-out of the image illumination from each successive facet.
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公开(公告)号：US20240155087A1
公开(公告)日：2024-05-09
申请号：US18418280
申请日：2024-01-21
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
IPC: H04N9/31
CPC classification number: H04N9/3135 , H04N9/312
Abstract: An image projector employing a laser scanning illumination arrangement to illumination a spatial light modulator (SLM), where an angular beam spreader element, typically a diffuser or a micro-lens array (MLA), adjacent to, or in a conjugate plane with, the SLM, enhances filling of the exit aperture while minimizing impact on the precision of scanning of the laser illumination on the SLM. Also disclosed are various schemes for synchronous rolling update of the SLM during scanned illumination, and systems employing binary-switchable SLMs.
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公开(公告)号：US20220373807A1
公开(公告)日：2022-11-24
申请号：US17762155
申请日：2020-10-25
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Daniel MICHAELS
Abstract: A display for displaying an image to a viewer includes an image generator having an illumination subsystem generating illumination of at least a first color, the image generator employing the illumination to generate an image. Projection optics projects illumination from the image for display to the viewer. The illumination subsystem includes a first laser generating a first laser beam of the first color with a first polarization and a second laser generating a second laser beam of the first color with a second polarization. The first and second polarizations are orthogonal at at least one location within the projection optics, thereby projecting a quasi-unpolarized image.
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公开(公告)号：US20220099885A1
公开(公告)日：2022-03-31
申请号：US17420675
申请日：2020-07-05
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Daniel MICHAELS
Abstract: An optical system for displaying an image includes a waveguide (10) having two major surfaces (12, 14) that support propagation of image illumination by internal reflection. A coupling-out configuration (16, 18) couples out image illumination towards the eye of the user. An image projector (20) is coupled so as to introduce image illumination into the waveguide so as to propagate by internal reflection. The waveguide also contains a symmetrical beam multiplier region, distinct from the coupling-out region, having one or more beam splitters (24) internal to the waveguide and parallel to its major surfaces. The symmetrical beam multiplier may be used to fill in a conjugate image after a compact coupling-in configuration, and/or may be used to fill the waveguide with the image as an intermediate stage (36) between two optical aperture expansion configurations (32, 34).
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