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公开(公告)号：US20240418988A1
公开(公告)日：2024-12-19
申请号：US18814541
申请日：2024-08-25
Applicant: Lumus Ltd.
Inventor： Shimon GRABARNIK , Tsion EISENFELD , Eitan RONEN , Ronen CHRIKI
Abstract: A display for providing an image to an eye of an observer is disclosed. An image generator provides image illumination corresponding to the image to a substrate having mutually-parallel major external surfaces for propagation within the substrate. An intermediate optical arrangement including at least one astigmatic optical element directs the image illumination from the image generator so as to propagate within the substrate in a first in-plane direction by internal reflection. A reflective optical arrangement having cylindrical optical power reflects the image illumination so as to propagate in a second in-plane direction by internal reflection. A coupling-out arrangement couples out the collimated image illumination towards an eye of an observer. The intermediate optical arrangement includes an element deployed to generate a corrective optical aberration that at least partially cancels out with a characteristic aberration introduced by the reflective optical arrangement.
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公开(公告)号：US20240176146A1
公开(公告)日：2024-05-30
申请号：US18284541
申请日：2022-04-11
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Tsion EISENFELD
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B2027/0116 , G02B2027/0178
Abstract: A display (10) includes a flat light-guide optical element (LOE) (100) having first and second progressive deflection arrangements associated with first and second regions (110, 120) of the LOE. A support arrangement (106), such as a glasses frame, supports the LOE in facing relation to the eye of the user. An image projector (200) injects a collimated image into the LOE via a reflective coupling-in surface (131). The reflective coupling-in surface is preferably obliquely oriented to both the major horizontal and vertical axes of the LOE. A multi-component wedge (132) is preferably used to compensate for chromatic aberration.
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公开(公告)号：US20230418052A1
公开(公告)日：2023-12-28
申请号：US18252827
申请日：2021-12-06
Applicant: LUMUS LTD.
Inventor： Shimon GRABARNIK , Tsion EISENFELD
IPC: G02B27/00 , G06V10/141 , G06F3/01
CPC classification number: G02B27/0068 , G02B27/0093 , G06V10/141 , G06F3/013
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor. The at least one processor is configured to select a light source from a plurality of lights sources based at least in part on a location of a pupil of an eye relative to an eye motion box. The selected light source is configured to illuminate a portion of the eye motion box that corresponds to the location of the pupil with a light beam. The at least one processor is further configured to activate the selected light source to illuminate the portion of the eye motion box.
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Patent Agency Ranking
公开(公告)号：US20230266593A1
公开(公告)日：2023-08-24
申请号：US18014162
申请日：2021-10-26
Applicant: Lumus Ltd.
Inventor： Tsion EISENFELD
CPC classification number: G02B27/0172 , G02B6/0088 , G02B6/0023 , G02B2027/011 , G02B2027/0178
Abstract: An optical element (24) for compensating for chromatic aberration includes two wedge components (26, 28), each having different refractive indices and Abbe numbers. The two wedge components have the same wedge angle, and are bonded together oriented such that the outer surfaces are parallel to each other. The optical element (24) can be integrated in the optical path between an image projector (14) and a waveguide (12) in order to compensate for linear chromatic aberration introduced by a face-curve angle and/or pantoscopic tilt of the waveguide of a near-eye display.
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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：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：US20220390747A1
公开(公告)日：2022-12-08
申请号：US17794966
申请日：2021-05-24
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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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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