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公开(公告)号：US20240319428A1
公开(公告)日：2024-09-26
申请号：US18733910
申请日：2024-06-05
Applicant: Lumus Ltd.
Inventor： Yochay DANZIGER , Elad SHARLIN
CPC classification number: G02B6/0035 , G02B6/0011 , G02B27/0172
Abstract: A transparent substrate has two parallel faces and guides collimated image light by internal reflection. A first set of internal surfaces is deployed within the substrate oblique to the parallel faces. A second set of internal surfaces is deployed within the substrate parallel to, interleaved and in overlapping relation with the first set of internal surfaces. Each of the internal surfaces of the first set includes a first coating having a first reflection characteristic to be at least partially reflective to at least a first subset of components of incident light. Each of the internal surfaces of the second set includes a second coating having a second reflection characteristic complementary to the first reflection characteristic to be at least partially reflective to at least a second subset of components of incident light. The sets of internal surfaces cooperate to reflect all components of light from the first and second subsets.
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2.发明公开公开(公告)号：US20230314689A1
公开(公告)日：2023-10-05
申请号：US18024983
申请日：2021-09-20
Applicant: Lumus Ltd.
Inventor： Ronen CHRIKI , Elad SHARLIN , Tsion EISENFELD , Shimon GRABARNIK
CPC classification number: G02B6/0035 , G02B27/0172
Abstract: An optical system for directing image illumination injected at a coupling-in region to an eye-motion box for viewing by an eye of a user, including a light-guide optical element (LOE) formed from transparent material that includes: a first region containing a first set of planar, mutually-parallel, partially-reflecting surfaces having a first orientation; a second region containing a second set of planar, mutually-parallel, partially-reflecting surfaces having a second orientation non-parallel to the first orientation; a set of mutually-parallel major external surfaces extending across the first and second regions, and an optical retarder deployed between the first region and the second region so as to rotate a polarization of light deflected by the first set of partially-reflecting surfaces prior to reaching the second set of partially-reflecting surfaces.
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公开(公告)号：US20230213769A1
公开(公告)日：2023-07-06
申请号：US18006959
申请日：2022-05-19
Applicant: LUMUS LTD.
Inventor： Elad SHARLIN , Ronen CHRIKI
CPC classification number: G02B27/0172 , G02B27/0081 , G02B2027/0178
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target coupling-out facet, identify an optical path to the target coupling-out facet, identify an active wave plate corresponding to the optical path, determine a target state of the active wave plate that corresponds to the optical path, set the active wave plate to the identified target state and cause a projection device to project a light beam comprising an image field of view component along the identified optical path.
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公开(公告)号：US20230037873A1
公开(公告)日：2023-02-09
申请号：US17791923
申请日：2021-04-25
Applicant: Lumus Ltd.
Inventor： Eitan RONEN , Eitan BAIBICH , Elad SHARLIN , Amir SHAPIRA , Jonathan GELBERG , Netanel GOLDSTEIN , Elad LAVI
IPC: G01N21/84 , G01N21/958 , G01N21/01 , G01N21/55 , G01N21/59
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：US20220397766A1
公开(公告)日：2022-12-15
申请号：US17776126
申请日：2021-02-22
Applicant: LUMUS LTD.
Inventor： Ronen CHRIKI , Elad SHARLIN , Yochay DANZIGER
Abstract: An optical waveguide combiner having an output coupler comprising an array of embedded partially reflective dielectric mirrors expanding and coupling a virtual, optionally color, image generated by a laser display engine into a user EMB, wherein the dielectric mirrors are configured having a wavelength band for each lasing band of the laser display engine that includes wavelengths of light in the lasing band and in a range of wavelengths over which the lasing band is expected to drift, a reflectivity angular range exhibiting a first reflectivity, a transmittance angular range exhibiting a second reflectivity less than the first reflectivity, and a see-thru angular transmittance range having high transmittance for natural light incident on the facets.
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Patent Agency Ranking
公开(公告)号：US20220187608A1
公开(公告)日：2022-06-16
申请号：US17683507
申请日：2022-03-01
Applicant: Lumus Ltd.
Inventor： Yuval RUBIN , Elad SHARLIN
Abstract: A display device (10) tor producing images to be viewed by an observer includes an optical system (14) and a control unit (20). The optical system receives input light indicative of an image into a light propagation channel (14A) and produces, at an exit pupil (14B), output light haying a field of view (FOV) corresponding to the image to he presented to the observer (18). The light propagation channel has an intensity transfer function map I1(x,φ) of the optical system across a lateral dimension x of the exit pupil and an angular 20 span φ of the FOV. The control unit (20) modifies the image data which is to be input in the optical system by applying thereto intensity modulation based on a correction intensity map that at least partially compensates intensity non-uniformity in the intensity transfer function map I1(x,φ) of the optical system, such that the light output at the exit pupil of the optical system and indicative of the image, has a modulated intensity map which is observed by the viewer with improved intensity uniformity.
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公开(公告)号：US20220091037A1
公开(公告)日：2022-03-24
申请号：US17543977
申请日：2021-12-07
Applicant: Lumus Ltd.
Inventor： Chaim ALDAAG , Tzofia LAVI , Dror HERMONI , Jonathan GELBERG , Yosef LAVIAN , Netanel GOLDSTEIN , Elad SHARLIN , Elad LAVI , Kobi GREENSTEIN , Amir SHAPIRA , Mordechai GILO , Tsion EISENFELD
Abstract: Optical sample characterization facilitates measurement and testing such as transmittance or reflectance at any discrete angle in a full range of angles of light propagation through 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 having a refractive index matching the refractive index of the cylinder and coated plate. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the index matching fluid through the coating, the coated glass plate, the fluid, the other side of the cylinder, and is collected for analysis. Due at least in part to the index matching fluid surrounding the coated plate, the plate can be rotated through a full range of angles (±90°, etc.) for full range testing of the coating.
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公开(公告)号：US20210033872A1
公开(公告)日：2021-02-04
申请号：US17044418
申请日：2019-05-22
Applicant: Lumus Ltd.
Inventor： Yuval RUBIN , Elad SHARLIN
Abstract: A display device (10) for producing images to be viewed by an observer includes an optical system (14) and a control unit (20). The optical system receives input light indicative of an image into a light propagation channel (14A) and produces, at an exit pupil (14B), output light having a field of view (FOV) corresponding to the image to be presented to the observer (18). The light propagation channel has an intensity transfer function map I1(x,φ) of the optical system across a lateral dimension x of the exit pupil and an angular 20 span φ of the FOV. The control unit (20) modifies the image data which is to be input in the optical system by applying thereto intensity modulation based on a correction intensity map that at least partially compensates intensity non-uniformity in the intensity transfer function map I1(x,φ) of the optical system, such that the light output at the exit pupil of the optical system and indicative of the image, has a modulated intensity map which is observed by the viewer with improved intensity uniformity.
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公开(公告)号：US20240369353A1
公开(公告)日：2024-11-07
申请号：US18770084
申请日：2024-07-11
Applicant: LUMUS LTD.
Inventor： Jonathan GELBERG , Elad SHARLIN , Eitan RONEN
IPC: G01B11/27
Abstract: Disclosed herein is a method for validating parallelism of internal facets of a sample. The method includes: (i) providing a sample including a light transmissive substrate and internal facets, nominally parallel and nominally inclined at an angle μnom relative to a flat surface of the sample; (ii) providing a prism having a substantially same refractive index as the substrate and including a flat, first surface and a flat, second surface, opposite to the first surface and inclined relative thereto at substantially the angle μnom; (iii) positioning the sample and the prism, such that the surface of the sample is parallel and adjacent to the second surface of the prism; (iv) projecting on the first surface of the prism, substantially normally thereto an incident light beam; (v) sensing light returned from the prism following reflection off the internal facets; and (vi) computing deviation from parallelism between the internal facets.
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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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