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公开(公告)号：US20250013061A1
公开(公告)日：2025-01-09
申请号：US18894140
申请日：2024-09-24
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD , Ronen CHRIKI
Abstract: An optical system for displaying an image includes a light-guide optical element (LOE) having a coupling-in region and a propagation region, a coupling-out configuration associated with the propagation region of the LOE, an image projector for generating image illumination corresponding to a collimated image, and a beam-multiplication configuration external to the LOE. The beam-multiplier is a transparent plate bonded to the LOE adjacent to the coupling-in region. The transparent plate has a partially-reflective surface between the LOE and the plate, and a reflector at the opposite surface. The partially-reflective surface and the reflector multiply the beam from the projector so as to fully illuminate the propagation region of the LOE with both the collimated image and a conjugate of the collimated image.
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公开(公告)号：US20240393612A1
公开(公告)日：2024-11-28
申请号：US18683649
申请日：2022-08-28
Applicant: LUMUS LTD.
Inventor： Ronen CHRIKI , Ido EISENBERG , Eitan RONEN , Lilya LOBACHINSKY , Kobi GREENSTEIN , Edgar FRIEDMANN , Elad LAVI
Abstract: Disclosed herein is a system for producing a composite prism having a plurality of planar external surfaces by aligning and bonding two or more prism components along bonding surfaces thereof, the system includes: an infrastructure configured to bring the bonding surfaces of the first prism component and the second prism component into close proximity or contact; a controllably rotatable mechanical axis configured to align at least one first surface of the first prism component and at least one second surface of the second prism component; a light source configured to project at least one collimated incident light beam on the at least one first surface and the at least one second surface; one or more detectors configured to sense light beams reflected from the first and second surfaces; a computational module configured to determining an average actual relative orientation between the at least one first surface and the at least one second surface based on the sensed data and if a difference between the weighted average actual relative orientation and an intended relative orientation between the at least one first surface and the at least one second surface is below an accuracy threshold, determine a correction angle for the controllably rotatable mechanical axis, wherein one or more of the prism components are transparent or semi-transparent.
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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：US20220004001A1
公开(公告)日：2022-01-06
申请号：US17290763
申请日：2019-11-10
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Ronen CHRIKI , Daniel Michaels
Abstract: A display includes a light-guide optical element (LOE) (20) and a projector arrangement (10a) for injecting an image into the LOE so as to propagate within the LOE by internal reflection at a pair of major faces. The image is coupled out from the LOE by a coupling-out arrangement, exemplified here as internal partially-reflecting surfaces (22b). The image is coupled out from the LOE in a direction away from the eye of the observer (24b), and a reflector (30) reflects the coupled-out image back through the LOE (32), towards the eye of the observer (26). Reflector (30) is preferably a selective partial reflector, and may be convex to provide a desired apparent image distance.
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公开(公告)号：US20250155631A1
公开(公告)日：2025-05-15
申请号：US19019560
申请日：2025-01-14
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD , Ronen CHRIKI
Abstract: An optical system including a light-guide optical element (LOE) with a first set of mutually-parallel, partially-reflecting surfaces and a second set of mutually-parallel, partially-reflecting surfaces at a different orientation from the first set. Both sets of partially-reflecting surfaces are located between a set of mutually-parallel major external surfaces. Image illumination introduced at a coupling-in location propagates along the LOE, is redirected by the first set of partially-reflecting surfaces towards the second set of partially-reflecting surfaces, where it is coupled out towards the eye of the user. The first set of partially-reflecting surfaces are implemented as partial surfaces located where needed for filling an eye-motion box with the required image. Additionally, or alternatively, spacing of the first set of partially-reflecting surfaces is varied across a first region of the LOE. Additional features relate to relative orientations of the projector and partially reflecting surfaces to improve compactness and achieve various adjustments.
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Patent Agency Ranking
公开(公告)号：US20240134257A1
公开(公告)日：2024-04-25
申请号：US18395844
申请日：2023-12-26
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Eitan RONEN , Yochay DANZIGER , Shimon GRABARNIK , Tsion EISENFELD
CPC classification number: G03B21/147 , G02B27/48 , G03B21/2033 , G03B21/2066
Abstract: An image projector with a high optical efficiency projects an image at an arbitrary distance from an observer. The image projector includes an illumination module having at least one spatially coherent light source; a phase image generator with an array of optical phase shifting elements; an electronic image controller connected electrically to the phase image generator; and a waveguide which includes at least one embedded partial reflector. The waveguide may be positioned either between the illumination module and the waveguide, or between the waveguide and the observer. The phase image generator may include phase shifts for canceling speckle, correcting optical aberrations, and/or compensating interference caused by light rays having different optical path lengths.
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7.发明公开公开(公告)号：US20230314689A1
公开(公告)日：2023-10-05
申请号：US18024983
申请日：2021-09-20
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Elad SHARLIN , Tsion EISENFELD , Shimon GRABARNIK
CPC classification number: G02B6/0035 , G02B27/0172
Abstract: An optical system for directing image illumination injected at a coupling-in region to an eye-motion box for viewing by an eye of a user, including a light-guide optical element (LOE) formed from transparent material that includes: a first region containing a first set of planar, mutually-parallel, partially-reflecting surfaces having a first orientation; a second region containing a second set of planar, mutually-parallel, partially-reflecting surfaces having a second orientation non-parallel to the first orientation; a set of mutually-parallel major external surfaces extending across the first and second regions, and an optical retarder deployed between the first region and the second region so as to rotate a polarization of light deflected by the first set of partially-reflecting surfaces prior to reaching the second set of partially-reflecting surfaces.
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公开(公告)号：US20230296899A1
公开(公告)日：2023-09-21
申请号：US18017865
申请日：2021-08-24
Applicant: LUMUS LTD.
Inventor： Eitan RONEN , Ronen CHRIKI , Jonathan GELBERG
CPC classification number: G02B27/0172 , G09G3/3426 , G09G3/001 , G02B6/0076 , G02B6/0015 , G09G2340/12 , G09G2320/0233 , G02B2027/0114
Abstract: Disclosed herein is an optical assembly for generating a color image using white light as source. The optical assembly includes a broadband white light source array, a color filter assembly configured to allow selectively filtering therethrough light in each of three additive primary colors, and a control unit. The control unit is configured to actuate light sources in the light source array according to three intensity maps. Each of the intensity maps corresponds to one of the three additive primary colors. The control unit is further configured to synchronize operations of the light source array and the color filter arrangement such that, when light sources in the light source array are actuated according to one of the three intensity maps, the color filter arrangement filters therethrough light at the additive primary color to which the intensity map corresponds.
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公开(公告)号：US20230213769A1
公开(公告)日：2023-07-06
申请号：US18006959
申请日：2022-05-19
Applicant: LUMUS LTD.
Inventor： Elad SHARLIN , Ronen CHRIKI
CPC classification number: G02B27/0172 , G02B27/0081 , G02B2027/0178
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target coupling-out facet, identify an optical path to the target coupling-out facet, identify an active wave plate corresponding to the optical path, determine a target state of the active wave plate that corresponds to the optical path, set the active wave plate to the identified target state and cause a projection device to project a light beam comprising an image field of view component along the identified optical path.
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公开(公告)号：US20220397766A1
公开(公告)日：2022-12-15
申请号：US17776126
申请日：2021-02-22
Applicant: LUMUS LTD.
Inventor： Ronen CHRIKI , Elad SHARLIN , Yochay DANZIGER
Abstract: An optical waveguide combiner having an output coupler comprising an array of embedded partially reflective dielectric mirrors expanding and coupling a virtual, optionally color, image generated by a laser display engine into a user EMB, wherein the dielectric mirrors are configured having a wavelength band for each lasing band of the laser display engine that includes wavelengths of light in the lasing band and in a range of wavelengths over which the lasing band is expected to drift, a reflectivity angular range exhibiting a first reflectivity, a transmittance angular range exhibiting a second reflectivity less than the first reflectivity, and a see-thru angular transmittance range having high transmittance for natural light incident on the facets.
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