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公开(公告)号：US20230213770A1
公开(公告)日：2023-07-06
申请号：US18009561
申请日：2021-06-09
申请人： Vuzix Corporation
CPC分类号： G02B27/0172 , G02B27/4233 , G02B27/44
摘要： An image light guide for conveying a virtual image, including a waveguide, an in-coupling diffractive optic operable to direct image-bearing light beams into the waveguide, and an out-coupling diffractive optic operable to direct the image-bearing light beams from the waveguide toward an eyebox. The out-coupling diffractive optic having two or more zones each including a set of diffractive features, wherein successive zones along one dimension of the out-coupling diffractive optic have different respective sets of diffractive features, wherein the diffractive features are operable to direct image-bearing light beams of a first pixel incident upon the diffractive features at a first angle whereby the directed image-bearing light beams of the first pixel further propagate within the waveguide, and wherein the diffractive features are operable to out-couple a portion of the image-bearing light beams of the first pixel incident upon the diffractive features at a second angle.
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公开(公告)号：US12050332B2
公开(公告)日：2024-07-30
申请号：US17257133
申请日：2019-06-12
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Marek W. Kowarz
CPC分类号： G02B5/32 , G02B5/1842 , G02B6/0023 , G02B6/005
摘要： An imaging apparatus includes an in-coupling diffractive optic directs image-bearing light beams into a planar waveguide, an out-coupling diffractive optic directs the image-bearing light beams from the waveguide toward a viewer eyebox, and a turning diffractive optic directs the image-bearing light beams along the waveguide between the in-coupling and out-coupling diffractive optics. The grating vectors of the in-coupling and out-coupling diffractive optics differ in magnitude and orientation while the grating vectors of all three diffractive optics sum to substantially zero. The turning diffractive optic is further arranged to preserve a desired angular relationship of the propagating image bearing beams within the waveguide.
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公开(公告)号：US11493761B2
公开(公告)日：2022-11-08
申请号：US16614180
申请日：2018-05-03
申请人： Vuzix Corporation
摘要： An imaging apparatus for forming dual virtual images includes a planar waveguide, an in-coupling diffractive optic that directs a set of image-bearing light beams into the waveguide, and an out-coupling diffractive optic that directs the set of image-bearing light beams from the waveguide toward a viewer eyebox. The out-coupling diffractive optic includes an array of contiguous diffractive zones, each of which has a set of diffractive features having at least one of a common orientation and a common pitch. A succession of the zones along one dimension of the array have respective sets of diffractive features that progressively vary in at least one of orientation and pitch in a stepwise manner. The out-coupling diffractive optic is arranged together with the array of contiguous diffractive zones for forming a virtual image that is viewable from the eyebox at a near focus distance.
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公开(公告)号：US20210231854A1
公开(公告)日：2021-07-29
申请号：US17257133
申请日：2019-06-12
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Marek W. Kowarz
摘要： An imaging apparatus includes an in-coupling diffractive optic directs image-bearing light beams into a planar waveguide, an out-coupling diffractive optic directs the image-bearing light beams from the waveguide toward a viewer eyebox, and a turning diffractive optic directs the image-bearing light beams along the waveguide between the in-coupling and out-coupling diffractive optics. The grating vectors of the in-coupling and out-coupling diffractive optics differ in magnitude and orientation while the grating vectors of all three diffractive optics sum to substantially zero. The turning diffractive optic is further arranged to preserve a desired angular relationship of the propagating image bearing beams within the waveguide.
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公开(公告)号：US20230417974A1
公开(公告)日：2023-12-28
申请号：US18038963
申请日：2021-11-24
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Marek W. Kowarz
CPC分类号： G02B6/0016 , G02B6/0036 , G02B27/44
摘要： An image light guide for conveying a virtual image, including a waveguide, an in-coupling diffractive optic operable to direct image-bearing light beams into the waveguide, and an out-coupling diffractive optic operable to direct the image-bearing light beams from the waveguide toward an eyebox. The out-coupling diffractive optic having two or more zones each including a set of diffractive features, wherein a first zone includes a first set of diffractive features and a second zone includes a second set of diffractive features and is located adjacent to the first zone. The out-coupling diffractive optic includes a first interface region formed by the first zone and the second zone, and the first interface region includes a first set of sub-regions and a second set of sub-regions. The first set of sub-regions includes the first set of diffractive features, and the second set of sub-regions includes the second set of diffractive features.
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公开(公告)号：US20220075195A1
公开(公告)日：2022-03-10
申请号：US17422960
申请日：2020-01-14
申请人： Vuzix Corporation
摘要： A method of fabricating a substrate includes providing a substrate having a flat surface and a beam writing system operable to write in a first direction and a second direction, wherein the second direction is perpendicular to the first direction, The method further includes providing a diffraction grating layout pattern having a first diffraction grating, a second diffraction grating, and a third diffraction grating. The method also includes locating the substrate in the beam writing system, whereby the beam writing system is operable to write into the flat surface, and aligning one of the first, second, and third diffraction gratings parallel with the beam writing system first direction. Additionally, the method includes writing the diffraction grating layout pattern into the substrate flat surface via the beam writing machine.
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公开(公告)号：US20210333551A1
公开(公告)日：2021-10-28
申请号：US16614180
申请日：2018-05-03
申请人： Vuzix Corporation
摘要： An imaging apparatus for forming dual virtual images includes a planar waveguide, an in-coupling diffractive optic that directs a set of image-bearing light beams into the waveguide, and an out-coupling diffractive optic that directs the set of image-bearing light beams from the waveguide toward a viewer eyebox. The out-coupling diffractive optic includes an array of contiguous diffractive zones, each of which has a set of diffractive features having at least one of a common orientation and a common pitch. A succession of the zones along one dimension of the array have respective sets of diffractive features that progressively vary in at least one of orientation and pitch in a stepwise manner. The out-coupling diffractive optic is arranged together with the array of contiguous diffractive zones for forming a virtual image that is viewable from the eyebox at a near focus distance.
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公开(公告)号：US11994684B2
公开(公告)日：2024-05-28
申请号：US18009561
申请日：2021-06-09
申请人： Vuzix Corporation
CPC分类号： G02B27/0172 , G02B27/4233 , G02B27/44
摘要： An image light guide for conveying a virtual image, including a waveguide, an in-coupling diffractive optic operable to direct image-bearing light beams into the waveguide, and an out-coupling diffractive optic operable to direct the image-bearing light beams from the waveguide toward an eyebox. The out-coupling diffractive optic having two or more zones each including a set of diffractive features, wherein successive zones along one dimension of the out-coupling diffractive optic have different respective sets of diffractive features, wherein the diffractive features are operable to direct image-bearing light beams of a first pixel incident upon the diffractive features at a first angle whereby the directed image-bearing light beams of the first pixel further propagate within the waveguide, and wherein the diffractive features are operable to out-couple a portion of the image-bearing light beams of the first pixel incident upon the diffractive features at a second angle.
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