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11.发明授权公开(公告)号：US11543594B2
公开(公告)日：2023-01-03
申请号：US17328727
申请日：2021-05-24
Applicant: DigiLens Inc.
Inventor： Alastair John Grant , Jonathan David Waldern , Milan Momcilo Popovich , Sihui He , Edward Lao , Roger Allen Conley Smith
Abstract: Systems and methods for providing holographic waveguide display using integrated gratings in accordance with various embodiments of the invention are illustrated. One embodiment includes a waveguide display including a source of light, and a first waveguide including a grating structure including first and second gratings, and an input coupler configured to couple a first field-of-view portion of light, and couple a second field-of-view portion of light, wherein the first grating is configured to provide beam expansion in a first direction for the first field-of-view portion of light, and provide beam expansion in the first direction and beam extraction towards a viewer for the second field-of-view portion of light, the second grating is configured to provide beam expansion in a second direction for the second field-of-view portion of light, and provide beam expansion in the second direction and beam extraction towards a viewer for the first field-of-view portion of light.
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公开(公告)号：US11513350B2
公开(公告)日：2022-11-29
申请号：US16465834
申请日：2018-01-26
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich
Abstract: Various embodiments of waveguide devices are described. A debanding optic may be incorporated into waveguide devices, which may help supply uniform output illumination. Accordingly, various waveguide devices are able to output a substantially flat illumination profile eliminating or mitigating banding effects.
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公开(公告)号：US20220260847A1
公开(公告)日：2022-08-18
申请号：US17685918
申请日：2022-03-03
Applicant: Digilens Inc. , Rockwell Collins, Inc.
Inventor： Milan Momcilo POPOVICH , Jonathan David WALDERN
Abstract: A transparent wearable data display having a source of collimated light, a deflector for deflecting the collimated light into a scanned beam, and a first of switchable grating elements sandwiched between first and second parallel transparent substrates, which together functioning as a first light guide. A first coupling is provided for directing the scanned beam into a first total internal reflection (TIR) light path of the first light guide along the first array column. The grating elements having diffracting and non-diffracting states, in their diffracting state deflecting light out of said light guide. The grating elements arc switchable into their diffracting states one group of elements at a time.
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公开(公告)号：US20220244559A1
公开(公告)日：2022-08-04
申请号：US17659639
申请日：2022-04-18
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: There is provided an illumination device comprising: a laser; a waveguide comprising at least first and second transparent lamina; a first grating device for coupling light from the laser into a TIR path in the waveguide; a second grating device for coupling light from the TIR path out of the waveguide; and a third grating device for applying a variation of at least one of beam deflection, phase retardation or polarization rotation across the wavefronts of the TIR light. The first second and third grating devices are each sandwiched by transparent lamina.
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公开(公告)号：US20220197026A1
公开(公告)日：2022-06-23
申请号：US17645212
申请日：2021-12-20
Applicant: DigiLens Inc.
Inventor： Alastair John Grant , Richard Bergstrom , Roger Allen Conley Smith , Michiel Koen Callens , Nicholas Sherwood , Nima Shams , Milan Momcilo Popovich
Abstract: Methods and apparatus for eye-glow suppression in waveguide systems is disclosed herein. Some embodiments of the methods and the apparatus include a source of image modulated light; a waveguide having an eye-facing surface and an external surface facing the outside world; an input coupler for coupling the light into a total reflection internal path in the waveguide; at least one grating for providing beam expansion and extracting light from the waveguide towards an eyebox; a polymer grating structure comprising a modulation depth and a grating pitch. The modulation depth is greater than the grating pitch across at least a portion of the polymer grating structure. Advantageously, the polymer grating structure is configured to diffract light entering the waveguide from the outside world or stray light generated within the waveguide away from optical paths that are refracted through the external surface into the outside world.
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Patent Agency Ranking
公开(公告)号：US20220163801A1
公开(公告)日：2022-05-26
申请号：US17457891
申请日：2021-12-06
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Milan Momcilo Popovich , Alastair John Grant
Abstract: An optical display, including a first waveguide having a first set of surfaces, an input grating, a fold grating, and an output grating; an image input image node assembly; and a prismatic relay optics is provided. The prismatic relay optics may be configured to be optomechanically connected to the waveguide and the input image node assembly. The optical display is may also be configured to operate alone or as integrated with a headpiece to be used as a HUD. The HUD may have a first and a second configuration wherein the waveguide is decoupled or coupled.
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公开(公告)号：US11307432B2
公开(公告)日：2022-04-19
申请号：US17214362
申请日：2021-03-26
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: There is provided an illumination device comprising: a laser; a waveguide comprising at least first and second transparent lamina; a first grating device for coupling light from the laser into a TIR path in the waveguide; a second grating device for coupling light from the TIR path out of the waveguide; and a third grating device for applying a variation of at least one of beam deflection, phase retardation or polarization rotation across the wavefronts of the TIR light. The first second and third grating devices are each sandwiched by transparent lamina.
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公开(公告)号：US11281013B2
公开(公告)日：2022-03-22
申请号：US17118285
申请日：2020-12-10
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: An optical display comprises: a first waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler receives collimated first wavelength light from an Input Image Node causes the light to travel within the first waveguide via total internal reflection between the first surface and the second surface to the fold grating. The fold grating provides pupil expansion in a first direction directs the light to the output grating via total internal reflection between the first surface and the second surface. The output grating provides pupil expansion in a second direction different than the first direction and causes the light to exit the first waveguide from the first surface or the second surface. At least one of the input coupler, fold grating and output grating is a rolled k-vector grating, and the fold grating is a dual interaction grating.
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公开(公告)号：US20210247560A1
公开(公告)日：2021-08-12
申请号：US17124269
申请日：2020-12-16
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Milan Popovich , Alastair John Grant
Abstract: Systems and methods for holographic waveguide backlights in accordance with various embodiments of the invention are illustrated. One embodiment includes an optical illumination device including at least one waveguide, a source of light optically coupled to the at least one waveguide configured to emit light having a first polarization state, a first plurality of grating elements for diffracting the light having the first polarization state out of the at least one waveguide into a first set of output paths, a second plurality of grating elements for diffracting the light having the first polarization state light out of the at least one waveguide into a second set of output paths, and at least one input coupler configured to couple at least a portion of the light having the first polarization state towards the first and second pluralities of grating elements.
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公开(公告)号：US20210231955A1
公开(公告)日：2021-07-29
申请号：US17118316
申请日：2020-12-10
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Milan Momcilo Popovich , Alastalr John Grant
Abstract: An optical display, including a first waveguide having a first set of surfaces, an input grating, a fold grating, and an output grating; an image input image node assembly; and a prismatic relay optics is provided. The prismatic relay optics may be configured to be optomechanically connected to the waveguide and the input image node assembly. The optical display is may also be configured to operate alone or as integrated with a headpiece to be used as a HUD. The HUD may have a first and a second configuration wherein the waveguide is decoupled or coupled.
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