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11.发明申请公开(公告)号：US20220334399A1
公开(公告)日：2022-10-20
申请号：US17622832
申请日：2020-06-25
Applicant: Lumus Ltd.
Inventor： Eitan RONEN
Abstract: A light-transmitting substrate has parallel surfaces deployed with a first of the parallel surfaces in facing relation to an eye. An optical element is associated with the first surface and applies optical power to incident light of a first type so as to collimate the incident light, and applies substantially no optical power to incident light of a second type. An optical coupling configuration is associated with the substrate and is configured for coupling-in a proportion of collimated light of the first type incident on the first surface so as to propagate within the substrate, and for coupling-out a proportion of light of the second type propagating within the substrate. Optics associated with the substrate convert collimated light of the first type into converging beams of light, which are sensed by an optical sensor. 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：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：US20250155611A1
公开(公告)日：2025-05-15
申请号：US19026493
申请日：2025-01-17
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Eitan RONEN , Jonathan GELBERG , Tsion EISENFELD , Amir SHAPIRA
Abstract: A near-eye display includes a light-guide optical element (LOE) (10) having first and second major external surfaces (11A, 11B) that are planar and mutually parallel. An image projector (2) introduces into the LOE illumination corresponding to an image so that the illumination propagates within said LOE by internal reflection at the major external surfaces. A coupling-out arrangement couples the illumination out of the LOE towards the eye of the observer. The coupling-out arrangement may be a set of mutually-parallel, partially-reflective surfaces (12A) deployed at an oblique angle within the LOE. Various arrangements for suppressing reflections of ambient light sources include obstructing baffles oriented so as to avoid reduction of peripheral field of view, various non-reflective coatings and various deployments of polarization filters.
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公开(公告)号：US20250085229A1
公开(公告)日：2025-03-13
申请号：US18957774
申请日：2024-11-24
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Eitan BAIBICH , Elad SHARLIN , Amir SHAPIRA , Jonathan GELBERG , Netanel GOLDSTEIN , Elad LAVI
Abstract: Optical sample characterization facilitates measurement and testing at any angle in a full range of angles of light propagation through an optical sample, such as a coated glass plate, having a higher than air index of refraction. A rotatable assembly includes a cylinder having a hollow, and a receptacle including the hollow. The receptacle also contains a fluid with a known refractive index. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the fluid, to the optical sample, where light beam is transmitted and/or reflected, then exits the cylinder and is collected for analysis. Due at least in part to the fluid surrounding the optical sample, the optical sample can be rotated through a full range of angles (±90°, etc.) for full range testing of the optical sample.
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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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Patent Agency Ranking
公开(公告)号：US20240263940A1
公开(公告)日：2024-08-08
申请号：US18579590
申请日：2022-07-26
Applicant: LUMUS LTD.
Inventor： Jonathan GELBERG , Elad SHARLIN , Eitan RONEN
IPC: G01B11/27
CPC classification number: G01B11/26 , G01B11/272 , G01M11/0242 , G01M11/35
Abstract: Disclosed herein is a method including: (i) providing a light transmissive sample including nominally parallel internal facets, which are about perpendicular to an external surface of the sample; (ii) providing an optical element having a refractive index about equal to that of the sample and including an external first surface and an external second surface acutely inclined relative thereto; (iii) positioning the second surface of the optical element adjacent to the first surface of the sample; (iv) impinging light beams on the first surface of the optical element, about normally thereto; (v) sensing light beams, which exit out of the sample following passage of the impinging light beams via the optical element, transmission thereof into the sample, reflection once off the internal facets, and exit out of the sample; and (vi) based on the sensed data, computing a deviation from parallelism between the internal facets.
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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：US20230036588A1
公开(公告)日：2023-02-02
申请号：US17758612
申请日：2021-11-09
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Elad SHARLIN
IPC: G02B27/01
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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公开(公告)号：US20220100032A1
公开(公告)日：2022-03-31
申请号：US17423873
申请日：2020-01-28
Applicant: Lumus Ltd.
Inventor： Eitan RONEN
IPC: G02F1/1335 , G02F1/13363 , H04N9/31 , G02F1/13
Abstract: An electronic display device and a birefringent element are obtained. The electronic display device has liquid crystal material deployed between two transparent electrodes. The electronic display device and the birefringent element each have respective polarization axes. The electronic display device and the birefringent element are deployed relative to each other such that the polarization axes of the electronic display device are rotationally offset from the polarization axes of the birefringent element by an offset amount in accordance with a predetermined direction of rotation. A compensation voltage that is proportional to the offset amount is determined. The compensation voltage is applied across the transparent electrodes to induce the liquid crystal material to assume an intermediate state. The electronic display device produces polarized image light waves having polarization in a polarization direction in accordance with the intermediate state assumed by the liquid crystal material and that compensates for the rotational offset.
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