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公开(公告)号：US20230384601A1
公开(公告)日：2023-11-30
申请号：US18449267
申请日：2023-08-14
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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Patent Agency Ranking
公开(公告)号：US20230384506A1
公开(公告)日：2023-11-30
申请号：US18365981
申请日：2023-08-05
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：US20230228932A1
公开(公告)日：2023-07-20
申请号：US18027105
申请日：2022-02-24
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD , Yochay DANZIGER , Eitan RONEN , Ronen CHRIKI , Mordechal 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：US20230204952A1
公开(公告)日：2023-06-29
申请号：US18018082
申请日：2022-04-07
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Yochay DANZIGER
CPC classification number: G02B27/0101 , G02B6/0076 , G02B6/0031 , 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：US20230120015A1
公开(公告)日：2023-04-20
申请号：US18085575
申请日：2022-12-21
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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公开(公告)号：US20220075194A1
公开(公告)日：2022-03-10
申请号：US17422491
申请日：2020-12-30
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Tsion EISENFELD
Abstract: An optical system provides two-stage expansion of an input optical aperture for a display based on a light-guide optical element. A first expansion is achieved using two distinct sets of mutually-parallel partially-reflecting surfaces, each set handing a different part of an overall field-of-view presented to the eye. In some cases, a single image projector provides image illumination to two sets of facets that are integrated into the LOE. In other cases, two separate projectors deliver image illumination corresponding to two different parts of the field-of-view to their respective sets of facets.
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