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公开(公告)号：US20200319461A1
公开(公告)日：2020-10-08
申请号：US16753528
申请日：2018-10-06
申请人： Vuzix Corporation
发明人： Robert J. Schultz
摘要： A waveguide apparatus for conveying a virtual image has first and second parallel planar surfaces. A first in-coupling diffractive optic on the first planar surface directs a first subset of image-bearing light beams into the waveguide and a second in-coupling diffractive optic on second planar surface directs a second subset of the image-bearing light beams into the waveguide. The first and second in-coupling diffractive optics are offset with respect to each other along the first and second parallel planar surfaces to independently direct the respective first and second subsets of the image-bearing light beams into the waveguide.
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公开(公告)号：US20200278543A1
公开(公告)日：2020-09-03
申请号：US16068053
申请日：2017-01-05
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Paul J. Travers
摘要： An imaging light guide has waveguide for conveying image-bearing light beams from an image source to an eyebox within which a virtual image can be viewed. First and second in-coupling diffractive optics direct first and second sets of the image-bearing light beams into the waveguide along different first and second paths. First and second turning diffractive optics disposed along the respective paths expand the image-bearing light beams of the first and second sets in a first dimension and direct the expanded image-bearing light beams of the first and second sets to first and second out-coupling diffractive optics. The first and second out-coupling diffractive optics further expand the image-bearing light beams of the two sets in a second dimension and direct the further expanded image-bearing light beams of the two sets from the waveguide toward the eyebox.
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公开(公告)号：US10747001B2
公开(公告)日：2020-08-18
申请号：US16067998
申请日：2017-01-05
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Paul J. Travers
摘要： An imaging light guide has a waveguide formed as a coated substrate having first and second surface coatings. A first in-coupling diffractive optic on the first coating directs diffracted light of a first wavelength range into the waveguide along a first direction. A second in-coupling diffractive optic on the second coating directs diffracted light of a second wavelength range into the waveguide along a second different direction. A first dichroic patch between the first surface of the substrate and the first surface coating for (a) transmitting the first wavelength range, (b) transmitting the second wavelength range through a range of incidence angles, and (c) reflecting the second wavelength range through a higher range of incidence angles. A second dichroic patch between the second surface of the substrate and the second surface coating for transmitting the second wavelength range and reflecting the first wavelength range.
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公开(公告)号：US20200081255A1
公开(公告)日：2020-03-12
申请号：US16470227
申请日：2017-12-13
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Paul J. Travers
摘要： A beam separator has a composite prism having an external input face and an external output face co-planar to the input face. At least one polarization beam splitter surface is encased within the composite prism and has an edge that defines a boundary between the external input face and the external output face. A first reflective surface is disposed to redirect, along a direction orthogonal to the input face, light of a first polarization that reflects from the at least one polarization beam splitter.
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公开(公告)号：US20190310482A1
公开(公告)日：2019-10-10
申请号：US16470226
申请日：2017-12-13
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Paul J. Travers
摘要： An imaging apparatus has a projector apparatus that projects light for forming a first image and a second image. A first pupil expander lies in the path of projected light and is configured to direct light to a viewer to form a first virtual image at infinity focus. A second pupil expander lies in the path of the projected light and is configured to direct light through a first lens and to the viewer to form a second virtual image near a focal plane of the first lens. A second lens is disposed to condition light from a visual scene lying beyond the second pupil expander.
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公开(公告)号：US20240134125A1
公开(公告)日：2024-04-25
申请号：US18279826
申请日：2022-03-04
申请人： Vuzix Corporation
发明人： Robert J. Schultz
CPC分类号： G02B6/34 , G02B27/0172
摘要： An image light guide for conveying a virtual image including a substrate operable to propagate image-bearing light beams along a length thereof. An in-coupling diffractive optic is formed along the substrate and is operable to diffract image-bearing light beams from an image source into the substrate in an angularly encoded form. An out-coupling diffractive optic is formed along the substrate, wherein the out-coupling diffractive optic is operable to diffract the image-bearing light beams from the substrate in an angularly decoded form. The in-coupling diffractive optic has three pluralities of periodic diffractive structures symmetric about three equidistant axes and the out-coupling diffractive optic has two pluralities of periodic diffractive structures having a periodicity equivalent to two of the three pluralities of periodic diffractive structures of the in-coupling diffractive optic. The two pluralities of periodic diffractive structures of the out-coupling diffractive optic are also parallel with two of the three pluralities of periodic diffractive structures of the in-coupling diffractive optic.
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公开(公告)号：US20240094456A1
公开(公告)日：2024-03-21
申请号：US18273668
申请日：2022-01-21
申请人： Vuzix Corporation
发明人： Robert J. Schultz
IPC分类号： F21V8/00
CPC分类号： G02B6/0016 , G02B6/0036 , G02B6/0076 , G02B27/0172
摘要： An image light guide for conveying a virtual image including a substrate operable to propagate image-bearing light beams along a length thereof. An in-coupling diffractive optic is formed along the substrate and is operable to diffract image-bearing light beams from an image source into the substrate in an angularly encoded form. An out-coupling diffractive optic is formed along the substrate, wherein the out-coupling diffractive optic is operable to diffract the image-bearing light beams from the substrate in an angularly decoded form. The in-coupling diffractive optic having three pluralities of periodic in-coupling diffractive structures and the out-coupling diffractive optic having at least two pluralities of periodic out-coupling diffractive structures. The two pluralities of periodic out-coupling diffractive structures being parallel with two of the three pluralities of periodic in-coupling diffractive structures.
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公开(公告)号：US11906762B2
公开(公告)日：2024-02-20
申请号：US17366951
申请日：2021-07-02
申请人： Vuzix Corporation
发明人： Robert J. Schultz , Paul J. Travers
CPC分类号： G02B5/1823 , G02B27/0081 , G02B2027/0174
摘要： An image light guide for conveying a virtual image has a waveguide that conveys image-bearing light, formed as a flat plate having an in-coupling diffractive optic with a first grating vector diffracting an image-bearing light beam into the waveguide and directing diffracted light. An out-coupling diffractive optic is formed as a plurality of overlapping diffraction gratings including a first grating pattern having first grating vector k1 and a second grating pattern having a second grating vector k2 for expanding and ejecting the expanded image bearing beams from the waveguide into an expanded eyebox within which the virtual image can be seen.
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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：US20220382061A1
公开(公告)日：2022-12-01
申请号：US17883596
申请日：2022-08-08
申请人： Vuzix Corporation
发明人： Robert J. Schultz
摘要： An imaging apparatus for conveying a virtual image including a waveguide having first and second surfaces. An in-coupling diffractive optic and an out-coupling diffractive optic arranged along one of the first and second surfaces, wherein the in-coupling diffractive optic is operable to direct image-bearing light beams into the waveguide for propagation by total internal reflection, and wherein the out-coupling diffractive optic is operable to direct at least a portion of the image-bearing light beams from the waveguide through the second surface toward an eyebox. An at least partially transparent outer cover located adjacent to the first surface, and a circular polarizer arranged between the waveguide and the outer cover, wherein the circular polarizer is operable to circularly polarize at least a portion of image-bearing light beams transmitted through the first surface and to prevent at least a portion of image-bearing light beams transmitted through the first surface from reentering the waveguide as a result of reflection from the outer cover.
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