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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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公开(公告)号：US20250164790A1
公开(公告)日：2025-05-22
申请号：US18836534
申请日：2023-05-29
Applicant: Lumus Ltd.
Inventor： Eitan RONEN
Abstract: A light projecting system may include a discrete light source matrix for emitting light corresponding to an image. The system may also include a waveguide formed from transparent material and having a coupling-in interface for coupling in the light corresponding to the image into the waveguide, and a coupling-out interface for coupling out the image out of the waveguide. The system may include an inner partially reflective surface and one or more partial lenses for enhancing color uniformity of the light projecting system.
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公开(公告)号：US20240337844A1
公开(公告)日：2024-10-10
申请号：US18294851
申请日：2022-09-02
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Eitan RONEN
CPC classification number: G02B27/0172 , G02B27/18 , G02B27/283 , G02B2027/0178
Abstract: An optical system may include (a) a light-guide optical element (LOE) 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 at the first and second major external surfaces, the LOE having a coupling-out arrangement for coupling out the image towards an eye of the user, the LOE having a coupling-in arrangement; and (b) an image projector comprising an image generator for generating an image and an image conjugate generator for generating a conjugate image, the image generator and the image conjugate generator disposed such as to project the image and the conjugate image, respectively, from directions not directly in front of the LOE.
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24.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：US20230258930A1
公开(公告)日：2023-08-17
申请号：US18303413
申请日：2023-04-19
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Elad SHARLIN
IPC: G02B27/01
CPC classification number: G02B27/01 , G02B27/017 , G02B27/0172 , G02B2027/0112 , G02B2027/0178
Abstract: A method of moderating chromaticity of ambient light in an environment reflected back into the environment by a component comprised in a lens of glasses through which a user of views the environment, the method comprising: determining a first set of tristimulus values that characterizes ambient light reflected by the component surface as a function of angle of reflection Θ in a bounded span of angles of reflection; determining a second set of tristimulus values for angles in the bounded span of angles so that light characterized by the second set of tristimulus values combined with light reflected by the component would be perceived substantially as white light; and providing an optical coating that reflects ambient light from the environment so that the reflected light is substantially characterized by the second set of tristimulus values.
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Patent Agency Ranking
公开(公告)号：US20230251488A1
公开(公告)日：2023-08-10
申请号：US18015107
申请日：2021-07-11
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Naamah LEVIN
CPC classification number: G02B27/0172 , G02B27/18 , G02B2027/0123 , G02B2027/011 , G02B5/1814
Abstract: A field of view (FOV) expansion device for use in a near-eye display includes a first surface which receives incident illumination from a projector of departure of the near-eye display. The incident illumination, which may consist of a multiplicity of incident illumination fields is characterized by an incident angular aperture. The expansion device is adjacent to a non-sequential (NS) optical element which projects output light to an observer. The refractive index of the device is greater than that of the NS optical element. A FOV expansion ratio, which is equal to the ratio between a projected angular aperture of the output light and an incident angular aperture of the incident illumination, is greater than or equal to a pre-determined threshold value. The first surface of the FOV expansion device is transparent in one embodiment and reflective in another.
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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：US20220357497A1
公开(公告)日：2022-11-10
申请号：US17779663
申请日：2021-03-17
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Edgar FRIEDMANN
IPC: F21V8/00
Abstract: An optical device has a light-transmitting substrate, an optical coupling-out configuration, and an optical arrangement. The light-transmitting substrate has at least two major surfaces and guides light by internal reflection between the major surfaces. The optical coupling-out configuration couples the light, guided by internal reflection, out of the light-transmitting substrate toward an eye of a viewer. The optical arrangement is associated with at least one of the two major surfaces, and has a first optical element and a second optical element. The optical elements are optically coupled to each other to define an interface region associated with at least a portion of the coupling-out configuration. The interface region deflects light rays that emanate from an external scene that are incident to the optical arrangement at a given range of incident angles.
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公开(公告)号：US20220252890A1
公开(公告)日：2022-08-11
申请号：US17729241
申请日：2022-04-26
Applicant: LUMUS LTD
Inventor： Yochay DANZIGER , Eitan RONEN
Abstract: An apparatus (100) for deriving a gaze direction of a human eye (150) includes a light-guide optical element (LOE) (120) having pair of parallel faces (104a), (104b) deployed in facing relation to the eye (150). A coupling-in configuration, such as a set of partially-reflective surfaces (145), is associated with LOE (120) and configured for coupling-in a proportion of light incident on face (104a) so as to propagate within the LOE. Focusing optics (106) associated with LOE (120) converts sets of parallel light rays propagating within the LOE into converging beams of captured light which are sensed by an optical sensor (125). A processing system (108) processes signals from the optical sensor (125) to derive a current gaze direction of the eye. Despite the aperture-combining effect of the LOE, retinal images can be effectively recovered as the only image information brought to focus on the optical sensor.
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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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