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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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22.发明公开公开(公告)号：US20230341612A1
公开(公告)日：2023-10-26
申请号：US18215195
申请日：2023-06-28
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
CPC classification number: G02B6/0055 , G02B6/0028 , G02B6/0051 , G02B27/0172 , G02B27/145 , G02B2027/0178
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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公开(公告)号：US20230013376A1
公开(公告)日：2023-01-19
申请号：US17948274
申请日：2022-09-20
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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公开(公告)号：US12222535B2
公开(公告)日：2025-02-11
申请号：US18365981
申请日：2023-08-05
Applicant: Lumus Ltd.
Inventor： Elad Sharlin , Ronen Chriki , Yochay Danziger
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：US11892761B2
公开(公告)日：2024-02-06
申请号：US17783795
申请日：2020-11-29
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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Patent Agency Ranking
26.发明授权公开(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：US11822088B2
公开(公告)日：2023-11-21
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：US11796729B2
公开(公告)日：2023-10-24
申请号：US18027105
申请日：2022-02-24
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：US11789264B2
公开(公告)日：2023-10-17
申请号：US18018082
申请日：2022-07-04
Applicant: Lumus Ltd.
Inventor： Eitan Ronen , Ronen Chriki , Yochay Danziger
CPC classification number: G02B27/0101 , G02B6/0031 , G02B6/0076 , G02B6/0035 , G02B2027/0123
Abstract: A display for providing an image to an eye of a user has a compound light-guide arrangement formed from juxtaposed first and second slab waveguides (10, 20). Image illumination from a projector (100) is introduced, part into each waveguide, so as to propagate by internal reflection within the waveguide. A coupling-out configuration of the first waveguide (10) includes a first set of obliquely-angled internal partially-reflecting surfaces (11) in a first region of the compound light-guide arrangement for coupling-out a first part of the field of view, and a coupling-out configuration of the second waveguide (20) includes a second set of obliquely-angled internal partially-reflecting surfaces (21) in a second region of the compound light-guide arrangement, at least partially non-overlapping with the first region, for coupling-out a second part of the field of view.
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公开(公告)号：US11714224B2
公开(公告)日：2023-08-01
申请号：US17948274
申请日：2022-09-20
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
CPC classification number: G02B6/0055 , G02B6/0028 , G02B6/0051 , G02B27/0172 , G02B27/145 , G02B2027/0178
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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