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61.发明授权公开(公告)号：US10732569B2
公开(公告)日：2020-08-04
申请号：US16116834
申请日：2018-08-29
Applicant: DigiLens Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich , Ratson Morad , Sean Michael Williams
Abstract: Holographic volume gratings in waveguide cells can be recorded using many different methods and systems in accordance with various embodiments of the invention. One embodiment includes a holographic recording system including at least one laser source configured to emit recording beams and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.
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公开(公告)号：US10690916B2
公开(公告)日：2020-06-23
申请号：US15765243
申请日：2016-10-04
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：US10670876B2
公开(公告)日：2020-06-02
申请号：US15502583
申请日：2015-08-04
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: There is provided an illumination device having: a laser; a waveguide including 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：US20200150469A1
公开(公告)日：2020-05-14
申请号：US16743905
申请日：2020-01-15
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: A contact image sensor comprises: a waveguiding structure for propagating light in a first direction comprising, in series, a first clad medium, a first core, a switchable grating clad, a second core, and a second clad medium sandwiched by transparent substrates, patterned parallel electrode elements orthogonally traversing the waveguides, a light source, a platen and a detector. Switchable grating regions overlapped by a first voltage-addressed electrode element diffract TIR light from the first core towards the platen. Switchable grating region overlapped by a second voltage-addressed electrode element diffract TIR light reflected from the platen into a TIR path within the second core.
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公开(公告)号：US20200089319A1
公开(公告)日：2020-03-19
申请号：US16577536
申请日：2019-09-20
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant , Kimberly Sun Lokovic
Abstract: There is provided an object tracker comprising: a first waveguide; a source of illumination light; a detector optically coupled to said waveguide; and at least one grating lamina formed within said waveguide. Illumination light propagating along a first optical path from said source to an object in relative motion to the object tracker. Image light reflected from at least one surface of an object is deflected by said grating lamina into a second optical path towards said detector.
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Patent Agency Ranking
公开(公告)号：US20200064637A1
公开(公告)日：2020-02-27
申请号：US16593606
申请日：2019-10-04
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
Abstract: A waveguide display is provided comprising: an input image generator providing image light projected over a field of view; a waveguide having first and second external surfaces; and at least one grating optically coupled to the waveguide for extracting light towards a viewer. The waveguide has a lateral refractive index variation between said external surfaces that prevents any ray propagated within the waveguide from optically interacting with at least one of the external surfaces.
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公开(公告)号：US20200026074A1
公开(公告)日：2020-01-23
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：US20190219822A1
公开(公告)日：2019-07-18
申请号：US16360491
申请日：2019-03-21
Applicant: DigiLens Inc. , Rockwell Collins, Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern , Alastair John Grant
CPC classification number: G02B27/0103 , G02B6/0035 , G02B27/01 , G02B27/017 , G02B27/4205 , G02B27/425 , G02B2027/0118 , G02B2027/0165 , G02B2027/0174 , G02F1/29
Abstract: An image generation device comprises: a spatial light modulator; a source of light; a beam deflector; an illumination waveguide and an image transport waveguide, each waveguide containing at least one switchable grating; and a coupler for directing scanned light into a first set of TIR paths in said illumination waveguide. A switchable grating in the illumination waveguide diffracts light onto said SLM, a switchable grating in said image transport waveguide diffracting image-modulated from the SLM into a waveguide path.
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公开(公告)号：US20190170321A1
公开(公告)日：2019-06-06
申请号：US16208050
申请日：2018-12-03
Applicant: DigiLens Inc.
Inventor： Milan Momcilo Popovich , Jonathan David Waldern
Abstract: There is provided a colour sequential illumination device comprising in series: first and second light sources; a condenser lens; and a grating device. The grating device comprises at least one Bragg grating. The condenser lens directs light from the first and second sources into the grating device at first and second incidence angles respectively. The grating device diffracts light from the first and second sources into a common direction. Desirably, the Bragg gratings are Electrically Switchable Bragg Gratings. In one embodiment of the invention the light sources are Light Emitting Diodes. Alternatively lasers may be used.
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公开(公告)号：US20190072723A1
公开(公告)日：2019-03-07
申请号：US16178104
申请日：2018-11-01
Applicant: DigiLens, Inc. , Rockwell Collins Inc.
Inventor： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich , James H. Stanley , Robert D. Brown
CPC classification number: G02B6/34 , G02B5/1819 , G02B5/1823 , G02B5/32 , G02B6/0016 , G02B6/124 , G02B27/0172 , G02B27/4205 , G02B27/4261 , G02B2027/0125 , G02F1/13342
Abstract: An optical waveguide comprises at least two TIR surface and contains a grating. Input TIR light with a first angular range along a first propagation direction undergoes at least two diffractions at the grating. Each diffraction directs light into a unique TIR angular range along a second propagation direction.
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