Patents by Inventor Kobi GREENSTEIN
Kobi GREENSTEIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240155088Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Inventors: Kobi GREENSTEIN, Tsion EISENFELD, Netanel GOLDSTEIN
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Patent number: 11933985Abstract: A method for producing light-guide optical elements (LOEs) (16, 18, 56, 58) each having a set of mutually-parallel partially-reflecting surfaces (17) located between, and oriented non-parallel to, a pair of major external surfaces, and at least one region (30a, 30b, 30c) without partially-reflecting surfaces. The method includes bonding together parallel-faced plates (4) at interfaces to form a stack (42) of plates with partially-reflecting coatings between them. The stack is cut and polished to form a boundary plane (48, 48a, 48b) intersecting the interfaces, and a block (50, 50a, 50b) of transparent material is bonded to the stack. The resulting precursor structure (52, 52?) is sliced along parallel planes to form slices, each containing a part of the stack for the active region of the LOE and a part of the block.Type: GrantFiled: February 2, 2021Date of Patent: March 19, 2024Assignee: LUMUS LTD.Inventors: Ido Fuchs, Edgar Friedmann, Elad Sharlin, Kobi Greenstein, Lilach Zuaretz, Tsion Eisenffeld, Shimon Grabarnik, Amir Shapira, Dror Hermoni
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Patent number: 11902716Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: GrantFiled: September 28, 2023Date of Patent: February 13, 2024Assignee: LUMUS LTD.Inventors: Kobi Greenstein, Tsion Eisenfeld, Netanel Goldstein
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Patent number: 11886008Abstract: A stack has first and second faces and multiple LOEs that each has two parallel major surfaces and a first plurality of parallel internal facets oblique to the major surfaces. A first block has third and fourth faces and a second plurality of parallel internal facets. The first block and the stack are bonded such that the second face joins the third face and the first and second facets are non-parallel, forming a second block. The second block is cut at a plane passing through the first face, forming a first structure having an interfacing surface. A third block has fifth and sixth faces and a plurality of parallel internal reflectors. The third block and the first structure are bonded such that fifth face joins the interfacing surface and the internal reflectors are non-parallel to all the facets, forming a second structure. Compound LOEs are sliced-out from the second structure.Type: GrantFiled: April 11, 2022Date of Patent: January 30, 2024Assignee: LUMUS LTD.Inventors: Ronen Chriki, Kobi Greenstein, Edgar Friedmann, Elad Sharlin
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Publication number: 20240022695Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: ApplicationFiled: September 28, 2023Publication date: January 18, 2024Inventors: Kobi GREENSTEIN, Tsion EISENFELD, Netanel GOLDSTEIN
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Patent number: 11805232Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: GrantFiled: June 19, 2023Date of Patent: October 31, 2023Assignee: LUMUS LTD.Inventors: Kobi Greenstein, Tsion Eisenfeld, Netanel Goldstein
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Publication number: 20230344969Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: ApplicationFiled: June 19, 2023Publication date: October 26, 2023Inventors: Kobi GREENSTEIN, Tsion EISENFELD, Netanel GOLDSTEIN
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Publication number: 20230305230Abstract: A stack has first and second faces and multiple LOEs that each has two parallel major surfaces and a first plurality of parallel internal facets oblique to the major surfaces. A first block has third and fourth faces and a second plurality of parallel internal facets. The first block and the stack are bonded such that the second face joins the third face and the first and second facets are non-parallel, forming a second block. The second block is cut at a plane passing through the first face, forming a first structure having an interfacing surface. A third block has fifth and sixth faces and a plurality of parallel internal reflectors. The third block and the first structure are bonded such that fifth face joins the interfacing surface and the internal reflectors are non-parallel to all the facets, forming a second structure. Compound LOEs are sliced-out from the second structure.Type: ApplicationFiled: April 11, 2022Publication date: September 28, 2023Inventors: Ronen CHRIKI, Kobi GREENSTEIN, Edgar FRIEDMANN, Elad SHARLIN
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Patent number: 11729359Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: GrantFiled: December 5, 2022Date of Patent: August 15, 2023Assignee: LUMUS LTD.Inventors: Kobi Greenstein, Tsion Eisenfeld, Netanel Goldstein
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Patent number: 11662311Abstract: 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.Type: GrantFiled: December 7, 2021Date of Patent: May 30, 2023Assignee: LUMUS LTD.Inventors: Chaim Aldaag, Tzofia Lavi, Dror Hermoni, Jonathan Gelberg, Yosef Lavian, Netanel Goldstein, Elad Sharlin, Elad Lavi, Kobi Greenstein, Amir Shapira, Mordechai Gilo, Tsion Eisenfeld
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Publication number: 20230101540Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Inventors: Kobi GREENSTEIN, Tsion EISENFELD, Netanel GOLDSTEIN
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Patent number: 11523092Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: GrantFiled: December 6, 2020Date of Patent: December 6, 2022Assignee: LUMUS LTD.Inventors: Kobi Greenstein, Tsion Eisenfeld, Netanel Goldstein
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Publication number: 20220360751Abstract: An optical system has a hollow mechanical body having first and second ends. An optical assembly has a plurality of optical components arranged in a stack configuration. Each of the optical components has a set of engagement configurations. For each pair of adjacent optical components in the stack configuration, at least some of the engagement configurations of a first optical component in the pair engage with at least some of the engagement configurations of a second optical component in the pair. Some of the engagement configurations of the optical component at a first end of the stack configuration engage with corresponding engagement configurations of the hollow mechanical body at the first end of the hollow mechanical body to position the other optical components of the stack configuration within the hollow mechanical body. An emissive display device is deployed at the second end of the hollow mechanical body.Type: ApplicationFiled: December 6, 2020Publication date: November 10, 2022Inventors: Kobi GREENSTEIN, Tsion EISENFELD, Netanel GOLDSTEIN
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Publication number: 20220357498Abstract: A method for producing light-guide optical elements (LOEs) (16, 18, 56, 58) each having a set of mutually-parallel partially-reflecting surfaces (17) located between, and oriented non-parallel to, a pair of major external surfaces, and at least one region (30a, 30b, 30c) without partially-reflecting surfaces. The method includes bonding together parallel-faced plates (4) at interfaces to form a stack (42) of plates with partially-reflecting coatings between them. The stack is cut and polished to form a boundary plane (48, 48a, 48b) intersecting the interfaces, and a block (50, 50a, 50b) of transparent material is bonded to the stack. The resulting precursor structure (52, 52?) is sliced along parallel planes to form slices, each containing a part of the stack for the active region of the LOE and a part of the block.Type: ApplicationFiled: February 2, 2021Publication date: November 10, 2022Inventors: Ido FUCHS, Edgar FRIEDMANN, Elad SHARLIN, Kobi GREENSTEIN, Lilach ZUARETZ, Tsion EISENFFELD, Shimon GRABARNIK, Amir SHAPIRA, Dror HERMONI
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Publication number: 20220091037Abstract: 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.Type: ApplicationFiled: December 7, 2021Publication date: March 24, 2022Inventors: Chaim ALDAAG, Tzofia LAVI, Dror HERMONI, Jonathan GELBERG, Yosef LAVIAN, Netanel GOLDSTEIN, Elad SHARLIN, Elad LAVI, Kobi GREENSTEIN, Amir SHAPIRA, Mordechai GILO, Tsion EISENFELD
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Patent number: 11221294Abstract: 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.Type: GrantFiled: April 7, 2019Date of Patent: January 11, 2022Assignee: LUMUS LTD.Inventors: Chaim Aldaag, Tzofia Lavi, Dror Hermoni, Jonathan Gelberg, Yosef Lavian, Netanel Goldstein, Elad Sharlin, Elad Lavi, Kobi Greenstein, Amir Shapira, Mordechai Gilo, Tsion Eisenfeld
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Publication number: 20210055218Abstract: 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.Type: ApplicationFiled: April 7, 2019Publication date: February 25, 2021Inventors: Chaim ALDAAG, Tzofia LAVI, Dror HERMONI, Jonathan GELBERG, Yosef LAVIAN, Netanel GOLDSTEIN, Elad SHARLIN, Elad LAVI, Kobi GREENSTEIN, Amir SHAPIRA, Mordechai GILO, Tsion EISENFELD