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公开(公告)号：US12152994B2
公开(公告)日：2024-11-26
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
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：US12061080B1
公开(公告)日：2024-08-13
申请号：US18578616
申请日：2022-07-26
Applicant: LUMUS LTD.
Inventor： Jonathan Gelberg , Elad Sharlin , Eitan Ronen
IPC: G01B11/27
CPC classification number: G01B11/272
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：US12055385B1
公开(公告)日：2024-08-06
申请号：US18579590
申请日：2022-07-26
Applicant: LUMUS LTD.
Inventor： Jonathan Gelberg , Elad Sharlin , Eitan Ronen
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：US11454590B2
公开(公告)日：2022-09-27
申请号：US17044390
申请日：2019-06-20
Applicant: Lumus Ltd.
Inventor： Jonathan Gelberg , Yuval Rubin , Michael Adel
Abstract: A system and method for measuring refractive index inhomogeneity between plates of a Lightguide Optical Element (LOE) uses an innovative measuring technique based on a shearing interferometric technique conventionally used to observe interference and test the collimation of light beams. Another feature of the current implementation is an innovative method for analyzing the characteristics of the generated interferogram to characterize discrepancies between adjacent plates in an LOE.
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公开(公告)号：US20210239898A1
公开(公告)日：2021-08-05
申请号：US17234885
申请日：2021-04-20
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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Patent Agency Ranking
公开(公告)号：US10983264B2
公开(公告)日：2021-04-20
申请号：US16638495
申请日：2020-01-26
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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公开(公告)号：US12222508B2
公开(公告)日：2025-02-11
申请号：US18017865
申请日：2021-08-24
Applicant: LUMUS LTD.
Inventor： Eitan Ronen , Ronen Chriki , Jonathan Gelberg
Abstract: Disclosed herein is an optical assembly for generating a color image using white light as source. The optical assembly includes a broadband white light source array, a color filter assembly configured to allow selectively filtering therethrough light in each of three additive primary colors, and a control unit. The control unit is configured to actuate light sources in the light source array according to three intensity maps. Each of the intensity maps corresponds to one of the three additive primary colors. The control unit is further configured to synchronize operations of the light source array and the color filter arrangement such that, when light sources in the light source array are actuated according to one of the three intensity maps, the color filter arrangement filters therethrough light at the additive primary color to which the intensity map corresponds.
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公开(公告)号：US11934002B2
公开(公告)日：2024-03-19
申请号：US18215195
申请日：2023-06-28
Applicant: Lumus Ltd.
Inventor： Yochay Danziger , Ronen Chriki , Jonathan Gelberg
CPC classification number: G02B6/0055 , G02B6/0028 , G02B6/0051 , G02B27/0172 , G02B27/145 , G02B2027/0178
Abstract: An optical system including a light-guide optical element (LOE) with first and second sets (204, 206) of mutually-parallel, partially-reflecting surfaces at different orientations. Both sets of partially-reflecting surfaces are located between parallel major external surfaces. A third set of at least partially-reflecting surfaces (202), deployed at the coupling-in region, receive image illumination injected from a projector (2) with an optical aperture having a first in-plane width and direct the image illumination via reflection of at least part of the image illumination at the third set of at least partially-reflective facets towards the first set of partially-reflective facets with an effective optical aperture having a second width larger than the first width.
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公开(公告)号：US11662311B2
公开(公告)日：2023-05-30
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
CPC classification number: G01N21/59 , G01N21/8422 , G01N2021/8427 , G02B27/30
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：US11221294B2
公开(公告)日：2022-01-11
申请号：US17043842
申请日：2019-04-07
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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