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公开(公告)号：US20210278739A1
公开(公告)日：2021-09-09
申请号：US17153588
申请日：2021-01-20
Applicant: Digilens Inc. , Rockwell Collins, Inc
Inventor： Robert D. Brown , Alastair John Grant , Wyatt L. Hendrick , Milan Momcilo Popovich , James H. Stanley , Jonathan David Waldern
Abstract: One embodiment provides an apparatus for displaying an image comprising: a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.
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公开(公告)号：US10983340B2
公开(公告)日：2021-04-20
申请号：US16074059
申请日：2017-02-03
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: An object tracker comprises: a source of light; at least one illumination waveguide optically coupled to said source continuing at least one grating lamina for diffracting said light towards an external object; at least one detector waveguide containing a grating lamina for in-coupling and deflecting a first polarization of light reflected from said object into a first waveguide direction and deflecting a second polarization of light reflected from said object into a second waveguide direction; at least one detector optically coupled to said detector waveguide operative to receive light propagating in said first waveguide direction; and at least one detector optically coupled to said detector waveguide operative to receive light propagating in said second waveguide direction.
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公开(公告)号：US20200348519A1
公开(公告)日：2020-11-05
申请号：US16410905
申请日：2019-05-13
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich
IPC: G02B27/01 , G02B6/122 , H04N13/344
Abstract: Systems and methods for waveguide displays having a wide-angle peripheral field of view in accordance with various embodiments of the invention are illustrated. One embodiment includes a helmet-integrated waveguide display including a helmet, a first picture generation unit (PGU), data communication and power supply links integrated within the helmet, a cable for transmitting signals from the data communication and power supply links to the PGU, and waveguide glasses including a first waveguide for projecting image modulated light from the PGU into an eyebox, and a frame supporting the waveguide, wherein the waveguide has outer edges not abutted by the frame, the waveguide is separated from the PGU by an air space providing unobscured lines of sight between the PGU and the outer edges, and the cable interfaces to the PGU via a self-mating mechanism.
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公开(公告)号：US10795160B1
公开(公告)日：2020-10-06
申请号：US14497280
申请日：2014-09-25
Applicant: Rockwell Collins, Inc. , DIGILENS INC.
Inventor： James H. Stanley , Jonathan David Waldern , Milan Momcilo Popovich , Alastair John Grant , Steven J. Robbins
Abstract: A near eye optical display includes a waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler is configured to receive collimated light from a display source and to cause the light to travel within the waveguide via total internal reflection between the first surface and the second surface to the fold grating; the fold grating is configured to provide pupil expansion in a first direction and to direct the light to the output grating via total internal reflection between the first surface and the second surface; and the output grating is configured to provide pupil expansion in a second direction different than the first direction and to cause the light to exit the waveguide from the first surface or the second surface.
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105.发明申请公开(公告)号：US20200264378A1
公开(公告)日：2020-08-20
申请号：US16794071
申请日：2020-02-18
Applicant: DigiLens Inc.
Inventor： Alastair John Grant , Jonathan David Waldern , Milan Momcilo Popovich , Sihui He , Edward Lao , Roger 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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Patent Agency Ranking
公开(公告)号：US20200249491A1
公开(公告)日：2020-08-06
申请号：US16855812
申请日：2020-04-22
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 are switchable into their diffracting states one group of elements at a time.
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公开(公告)号：US20200249484A1
公开(公告)日：2020-08-06
申请号：US16854702
申请日：2020-04-21
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Milan Momcilo Popovich
Abstract: A light projection apparatus is provided comprising: a source of light; a switchable grating on a first substrate; and a diffractive optical element. Light is diffracted at least once by the switchable grating and is diffracted at least once by the DOE.
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公开(公告)号：US10712571B2
公开(公告)日：2020-07-14
申请号：US16277390
申请日：2019-02-15
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
IPC: G02B27/01 , A61B3/113 , G02B6/34 , G02B6/42 , G02F1/29 , G02F1/313 , G06K9/00 , G06K9/62 , G02B27/00 , G02F1/31
Abstract: An eye tracker having a first waveguide for propagating illumination light along a first waveguide path and propagating image light reflected from at least one surface of an eye along a second waveguide path. At least one grating lamina for deflecting the illumination light out of the first waveguide path towards the eye and deflecting the image light into the second waveguide path towards a detector is disposed adjacent an optical surface of the waveguide.
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109.发明授权公开(公告)号：US10690851B2
公开(公告)日：2020-06-23
申请号：US16357233
申请日：2019-03-18
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Milan Momcilo Popovich , Alastair John Grant
Abstract: Many embodiments in accordance with the invention are directed towards waveguides implementing birefringence control. In some embodiments, the waveguide includes a birefringent grating layer and a birefringence control layer. In further embodiments, the birefringence control layer is compact and efficient. Such structures can be utilized for various applications, including but not limited to: compensating for polarization related losses in holographic waveguides; providing three-dimensional LC director alignment in waveguides based on Bragg gratings; and spatially varying angular/spectral bandwidth for homogenizing the output from a waveguide. In some embodiments, a polarization-maintaining, wide-angle, and high-reflection waveguide cladding with polarization compensation is implemented for grating birefringence. In several embodiments, a thin polarization control layer is implemented for providing either quarter wave or half wave retardation.
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110.发明申请公开(公告)号：US20200183163A1
公开(公告)日：2020-06-11
申请号：US16709517
申请日：2019-12-10
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Sihui He , Milan Momcilo Popovich
Abstract: A waveguide display comprises: a waveguide supporting a single grating layer; a source of data-modulated light; a first input coupler for directing a first spectral band of light from the source into a first waveguide pupil; a second input coupler for directing a second spectral band of light from the source into a second waveguide pupil; an output coupler comprising multiplexed first and second gratings, at least one fold grating for directing the first spectral band along a first path from the first pupil to the output coupler and providing a first beam expansion; at least one fold grating for directing the second spectral band along a second path from the second pupil to the output coupler and providing a first beam expansion. The first multiplexed grating directing the first spectral band out of the waveguide in a first direction with beam expansion orthogonal to the first beam expansion. The second multiplexed grating directing the second spectral band out of the waveguide in the first direction with beam expansion orthogonal to the first beam expansion.
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