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公开(公告)号：US11860369B2
公开(公告)日：2024-01-02
申请号：US18039260
申请日：2022-03-01
申请人： Lumus Ltd.
发明人： Ronen Chriki , Tsion Eisenfeld , Elad Sharlin
CPC分类号： G02B27/0172 , G02B27/283
摘要： An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupling prism (30) attached to the first major external surface (11) that projects an image injection surface. A reflective polarizing beam splitter (51) is deployed at an interface between the major external surface (11) and the coupling prism (30) parallel to the major external surfaces, to selectively transmit illumination from the coupling prism into the LOE while trapping light already within the LOE so as to propagate within the LOE by internal reflection.
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公开(公告)号：US11729359B2
公开(公告)日：2023-08-15
申请号：US18074571
申请日：2022-12-05
申请人： Lumus Ltd.
CPC分类号： H04N9/3152 , G02B7/021 , G02B27/0176 , G02B27/0955 , G02B27/0172 , G02B2027/0116
摘要： 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.
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公开(公告)号：US11543583B2
公开(公告)日：2023-01-03
申请号：US17268970
申请日：2019-09-09
申请人： Lumus Ltd.
发明人： Tsion Eisenfeld , Ronen Chriki
摘要： An optical system including a light-guide optical element (LOE) with a first set of mutually-parallel, partially-reflecting surfaces and a second set of mutually-parallel, partially-reflecting surfaces at a different orientation from the first set. Both sets of partially-reflecting surfaces are located between a set of mutually-parallel major external surfaces. Image illumination introduced at a coupling-in location propagates along the LOE, is redirected by the first set of partially-reflecting surfaces towards the second set of partially-reflecting surfaces, where it is coupled out towards the eye of the user. The first set of partially-reflecting surfaces are implemented as partial surfaces located where needed for filling an eye-motion box with the required image. Additionally, or alternatively, spacing of the first set of partially-reflecting surfaces is varied across a first region of the LOE. Additional features relate to relative orientations of the projector and partially reflecting surfaces to improve compactness and achieve various adjustments.
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公开(公告)号：US10830938B2
公开(公告)日：2020-11-10
申请号：US16411197
申请日：2019-05-14
申请人： LUMUS LTD.
发明人： Tsion Eisenfeld
摘要： An optical system for displaying a projected image to an observer includes a light-guide optical element having two major parallel surfaces and configured for guiding illumination corresponding to a projected image collimated to infinity by internal reflection at the major parallel surfaces from a coupling-in region to a coupling-out region where at least part of the illumination is coupled out towards an eye of the observer, and a projector configuration associated with the coupling-in region of the light-guide optical element. The projector configuration includes a number of adjacent optical arrangements, each including collimating optics deployed for projecting a subset of the illumination. The adjacent optical arrangements cooperate to provide an entirety of the projected image to the coupling-out region.
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公开(公告)号：US11885966B2
公开(公告)日：2024-01-30
申请号：US17422491
申请日：2020-12-30
申请人： Lumus Ltd.
发明人： Eitan Ronen , Ronen Chriki , Tsion Eisenfeld
CPC分类号： G02B27/0172 , G02B6/0018 , G02B2027/0178
摘要： An optical system provides two-stage expansion of an input optical aperture for a display based on a light-guide optical element. A first expansion is achieved using two distinct sets of mutually-parallel partially-reflecting surfaces, each set handing a different part of an overall field-of-view presented to the eye. In some cases, a single image projector provides image illumination to two sets of facets that are integrated into the LOE. In other cases, two separate projectors deliver image illumination corresponding to two different parts of the field-of-view to their respective sets of facets.
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公开(公告)号：US11741861B1
公开(公告)日：2023-08-29
申请号：US17667044
申请日：2022-02-08
申请人： LUMUS LTD.
发明人： Shimon Grabarnik , Tsion Eisenfeld , Elad Sharlin
CPC分类号： G09G3/001 , G02F1/011 , G02F2201/06 , G02F2203/01 , G02F2203/02 , G09G2320/0257 , G09G2354/00 , G09G2360/144
摘要： In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.
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公开(公告)号：US11630260B2
公开(公告)日：2023-04-18
申请号：US17794965
申请日：2021-05-24
申请人： Lumus Ltd.
发明人： Shimon Grabarnik , Tsion Eisenfeld
摘要： A method of fabricating a compound light-guide optical element (LOE) is provided. A bonded stack of a plurality of LOE precursors and a plurality of transparent spacer plates alternating therebetween is bonded to a first optical block having a plurality of mutually parallel obliquely angled internal surfaces. The block is joined to the stack such that first plurality of partially reflective internal surfaces of the block is non-parallel to the internal surfaces of the LOE precursor. After bonding, a second optical is thereby formed. At least one compound LOE is sliced-out of the second optical block by cutting the second block through at least two consecutive spacer plates having a LOE precursor sandwiched therebetween.
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公开(公告)号：US11448811B2
公开(公告)日：2022-09-20
申请号：US17093772
申请日：2020-11-10
申请人： LUMUS LTD.
发明人： Tsion Eisenfeld
摘要： An optical system for displaying a projected image to an observer includes a light-guide optical element having two major parallel surfaces and configured for guiding illumination corresponding to a projected image collimated to infinity by internal reflection at the major parallel surfaces from a coupling-in region to a coupling-out region where at least part of the illumination is coupled out towards an eye of the observer, and a projector configuration associated with the coupling-in region of the light-guide optical element. The projector configuration includes a number of adjacent optical arrangements, each including collimating optics deployed for projecting a subset of the illumination. The adjacent optical arrangements cooperate to provide an entirety of the projected image to the coupling-out region.
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公开(公告)号：US11805232B1
公开(公告)日：2023-10-31
申请号：US18211308
申请日：2023-06-19
申请人： Lumus Ltd.
CPC分类号： H04N9/3152 , G02B7/021 , G02B27/0176 , G02B27/0955 , G02B27/0172 , G02B2027/0116
摘要： 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.
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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
申请人： Lumus Ltd.
发明人： 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分类号： G01N21/59 , G01N21/8422 , G01N2021/8427 , G02B27/30
摘要： 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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