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公开(公告)号：US20230256558A1
公开(公告)日：2023-08-17
申请号：US18138081
申请日：2023-04-23
Applicant: Lumus Ltd.
Inventor： Amit MAZIEL , Naamah LEVIN , Lilya LOBACHINSKY , Yochay DANZIGER
IPC: B24B13/015 , B24B13/005 , B24B49/12 , G01B11/27
CPC classification number: B24B13/015 , B24B13/005 , B24B49/12 , G01B11/27
Abstract: A method of polishing a target surface of a waveguide to achieve perpendicularity relative to a reference surface is disclosed. The method includes i) providing a polishing apparatus having a polishing plate with a flat surface defining a reference plane, and an adjustable mounting apparatus configured to hold the waveguide during polishing at a plurality of angular orientations; ii) positioning an optical alignment sensor and a light reflecting apparatus such that a first collimated light beam is reflected off of a surface parallel to the reference plane, and a second perpendicular collimated light beam is reflected off of the reference surface; iii) aligning the waveguide within the polishing apparatus such that the reflections received by the optical alignment sensor align within the optical alignment sensor, thereby being indicative of perpendicularity between the reference plane and the reference surface; and iv) polishing the target surface of the aligned waveguide.
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公开(公告)号：US20230359039A1
公开(公告)日：2023-11-09
申请号：US18224087
申请日：2023-07-20
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Daniel MICHAELS
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/0123
Abstract: A display and method for providing an image to an eye of a viewer is provided. The display comprises at least two projector assemblies. Each projector assembly comprises a lightguide optical element (LOE), and an image projector arrangement for generating a partial image and being deployed to introduce the partial image into the LOE for coupling out towards the eye of the viewer. The at least two projector assemblies cooperate to display the image to the eye of the viewer with partial overlap. The display further comprises a controller associated with the image projector arrangements and configured to reduce a pixel intensity of selected pixels in a region of partial overlap between the first and second part of the image so as to enhance a perceived uniformity of the image.
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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：US20220357583A1
公开(公告)日：2022-11-10
申请号：US17789196
申请日：2020-11-30
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Ronen CHRIKI , Naamah LEVIN , Lilya LOBACHINSKY
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：US20200150330A1
公开(公告)日：2020-05-14
申请号：US16679346
申请日：2019-11-11
Applicant: Lumus LTD
Inventor： Yochay Danziger , Naamah LEVIN
IPC: F21V8/00
Abstract: A near eye display including: a first optical waveguide having a direction of elongation, at least one pair of parallel faces, and a first coupling-out mechanism; a second optical waveguide having an input aperture, a pair of parallel faces, and a second coupling out-mechanism; an optical coupling between the first optical waveguide and the second waveguide, the optical coupling including at least an air gap configured to enable total internal reflection within the first waveguide, and an interface window, the interface window comprising a transparent optical element with a refractive index substantially the same as a refractive index of the second optical waveguide; and wherein at least a portion of the interface window projects beyond the input aperture of the second optical waveguide such that undesired light exiting the first waveguide is prevented from entering the second waveguide.
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Patent Agency Ranking
公开(公告)号：US20250013055A1
公开(公告)日：2025-01-09
申请号：US18892815
申请日：2024-09-23
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Daniel MICHAELS
Abstract: A display and method for providing an image to an eye of a viewer is provided. The display comprises at least two projector assemblies. Each projector assembly comprises a light-guide optical element (LOE), and an image projector arrangement for generating a partial image and being deployed to introduce the partial image into the LOE for coupling out towards the eye of the viewer. The at least two projector assemblies cooperate to display the image to the eye of the viewer with partial overlap. The display further comprises a controller associated with the image projector arrangements and configured to reduce a pixel intensity of selected pixels in a region of partial overlap between the first and second part of the image so as to enhance a perceived uniformity of the image.
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公开(公告)号：US20220388108A1
公开(公告)日：2022-12-08
申请号：US17762144
申请日：2020-11-17
Applicant: Lumus Ltd.
Inventor： Amit MAZIEL , Naamah LEVIN , Lilya LOBACHINSKY , Yochay DANZIGER
IPC: B24B13/015 , B24B49/12 , G01B11/27 , B24B13/005
Abstract: A method of polishing a target surface of a waveguide to achieve perpendicularity relative to a reference surface is disclosed. The method includes i) providing a polishing apparatus having a polishing plate with a flat surface defining a reference plane, and an adjustable mounting apparatus configured to hold the waveguide during polishing at a plurality of angular orientations; ii) positioning an optical alignment sensor and a light reflecting apparatus such that a first collimated light beam is reflected off of a surface parallel to the reference plane, and a second perpendicular collimated light beam is reflected off of the reference surface; iii) aligning the waveguide within the polishing apparatus such that the reflections received by the optical alignment sensor align within the optical alignment sensor, thereby being indicative of perpendicularity between the reference plane and the reference surface; and iv) polishing the target surface of the aligned waveguide.
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公开(公告)号：US20210072553A1
公开(公告)日：2021-03-11
申请号：US16770970
申请日：2018-12-10
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Naamah LEVIN , Shai EISENBERG
Abstract: An image projector includes a spatial light modulator (SLM) with a two dimensional array of pixel elements controllable to modulate a property of light transmitted or reflected by the pixel elements. An illumination arrangement delivers illumination to the SLM. A collimating arrangement collimates illumination from the SLM to generate a collimated image directed to an exit stop. The illumination arrangement is configured to sequentially illuminate regions of the SLM, each corresponding to a multiple pixel elements. A controller synchronously controls the pixel elements and the illumination arrangement so as to project a collimated image with pixel intensities corresponding to a digital image.
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公开(公告)号：US20230408791A1
公开(公告)日：2023-12-21
申请号：US18239784
申请日：2023-08-30
Applicant: Lumus Ltd.
Inventor： Lilya LOBACHINSKY , Naamah LEVIN , Aviv FROMMER
CPC classification number: G02B7/1805 , G02B7/003 , G02B27/0172
Abstract: In one method, a display source aligned with an illumination prism assembly is displaced along a displacement axis to adjust the distance between the display source and a collimating prism assembly. The display source, the illumination prism assembly, and an illumination module are translationally moved in unison in a plane normal to the displacement axis. In another method, a component of an optical device is coupled to a mechanical assembly at a known orientation. The mechanical assembly has a test pattern at a known orientation. An image sensor is aligned with the test pattern, and the image sensor captures an image of the test pattern. The captured image is analyzed to determine an estimated orientation of the test pattern. An orientation parameter of the image sensor is adjusted based on a comparison between the known orientation of the test pattern and the estimated orientation of the test pattern.
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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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