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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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公开(公告)号：US20250155721A1
公开(公告)日：2025-05-15
申请号：US19025922
申请日：2025-01-16
Applicant: LUMUS LTD.
Inventor： Ronen CHRIKI , Elad SHARLIN
IPC: G02B27/01 , G02B3/08 , G02F1/1335
Abstract: An apparatus includes a waveguide and one or more partially reflective surfaces embedded inside the waveguide, wherein each of the one or more partially reflective surfaces includes a multi-layer coating structure, wherein a first portion of the multi-layer coating structure induces an overall phase shift of light propagating through the first portion of the multi-layer coating structure and wherein a second portion of the multi-layer coating structure is selected to decrease the overall phase shift.
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13.发明公开公开(公告)号：US20240134202A1
公开(公告)日：2024-04-25
申请号：US18403794
申请日：2024-01-04
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Tsion EISENFELD
CPC classification number: G02B27/0172 , G02B6/0018 , G02B2027/0178
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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公开(公告)号：US20240126085A1
公开(公告)日：2024-04-18
申请号：US18390074
申请日：2023-12-20
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Tsion EISENFELD , Elad SHARLIN
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/283
Abstract: An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupling prism (30) attached to the first major external surface (11) that projects an image injection surface. A reflective polarizing beam splitter (51) is deployed at an interface between the major external surface (11) and the coupling prism (30) parallel to the major external surfaces, to selectively transmit illumination from the coupling prism into the LOE while trapping light already within the LOE so as to propagate within the LOE by internal reflection.
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公开(公告)号：US20230194770A1
公开(公告)日：2023-06-22
申请号：US18004284
申请日：2022-07-01
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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Patent Agency Ranking
公开(公告)号：US20230019309A1
公开(公告)日：2023-01-19
申请号：US17783795
申请日：2020-11-29
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Eitan RONEN , Yochay DANZIGER , Shimon GRABARNIK , Tsion EISENFELD
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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公开(公告)号：US20220091413A1
公开(公告)日：2022-03-24
申请号：US17427963
申请日：2020-10-25
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：US20240361508A1
公开(公告)日：2024-10-31
申请号：US18762883
申请日：2024-07-03
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：US20240345408A1
公开(公告)日：2024-10-17
申请号：US18752871
申请日：2024-06-25
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Naamah LEVIN , Lilya LOBACHINSKY
CPC classification number: G02B27/0179 , G02B6/42 , G02B6/4214 , G02B27/0101 , G02B27/0172 , G06F3/013 , H04N23/56 , G02B2027/0178 , G02B2027/0187
Abstract: A light-transmitting substrate has at least two major surfaces and is deployed with a first of the major surfaces in facing relation to an eye of a viewer. A light redirecting arrangement is associated with the light-transmitting substrate and deflects light from the eye toward an optical sensor that senses light, such that the light deflection occurs at the light-transmitting substrate and the deflected light that reaches the optical sensor is unguided by the light-transmitting substrate. A processor derives current gaze direction of the eye by processing signals from the optical sensor.
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公开(公告)号：US20240036333A1
公开(公告)日：2024-02-01
申请号：US18555520
申请日：2022-03-21
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Eitan RONEN , Elad SHARLIN
CPC classification number: G02B27/0172 , G02B5/1819 , G02B27/28 , G02B2027/0123
Abstract: A method for generating an image in a near-eye display may include dividing an image into first and second sub-images, sequentially transmitting the first sub-image and the second sub-image through a channel, extracting light corresponding to the first sub-image in a first polarization and light corresponding to the second sub-image in a second polarization, deflecting a first order of the light in the first polarization in a first direction, and deflecting an opposite order of the light in the second polarization in a opposite direction different from the first direction. The resulting image width corresponding to a wider field of view.
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