公开(公告)号：US11226261B2

公开(公告)日：2022-01-18

申请号：US16769285

申请日：2018-12-02

Applicant: Lumus Ltd.

Inventor： Lilya Lobachinsky ,  Yochay Danziger ,  Nitzan Livneh ,  Jonathan Gelberg

IPC: G01M11/00 ,  G02B27/00 ,  G02B27/01

Abstract: At various positions in an eye motion box (EMB) an output image from an optical device can be captured and analyzed for detection and evaluation of image propagation via the optical device. Optical testing along a specific axis can evaluate optical engine transfer function uniformity across facet's active area, detect the existence and degree of “smearing” of a projected image from an optical device, and detect the existence and degree of a “white stripes” (WS) phenomenon related to scattering and diffraction in the wedge-to-LOE interface. A variety of metrics can be derived for quality control and feedback into the production system, and for disposition of the optical devices.

公开(公告)号：US11969849B2

公开(公告)日：2024-04-30

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.

公开(公告)号：US11762169B2

公开(公告)日：2023-09-19

申请号：US16769290

申请日：2018-12-02

Applicant: Lumus Ltd.

Inventor： Lilya Lobachinsky ,  Naamah Levin ,  Aviv Frommer

IPC: G02B7/18 ,  G02B7/00 ,  G02B27/01

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.

公开(公告)号：US12019249B2

公开(公告)日：2024-06-25

申请号：US17789196

申请日：2020-11-30

Applicant: Lumus Ltd.

Inventor： Eitan Ronen ,  Ronen Chriki ,  Naamah Levin ,  Lilya Lobachinsky

IPC: G02B27/01 ,  G02B6/42 ,  G06F3/01 ,  H04N23/56

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.

公开(公告)号：US11667004B2

公开(公告)日：2023-06-06

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 ,  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.