公开(公告)号：US20240012247A1

公开(公告)日：2024-01-11

申请号：US18328535

申请日：2023-06-02

Applicant: DigiLens Inc.

Inventor： Milan Momcilo Popovich ,  Alastair John Grant ,  Nima Shams ,  Jonathan David Waldern ,  Sihui He ,  Edward Lao ,  Roger Allen Conley Smith

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B27/0103 ,  G02B6/34

Abstract: Disclosed herein are systems and methods for providing waveguide display devices utilizing overlapping integrated dual action (IDA) waveguides. One embodiment includes a waveguide display device including: a first input image source providing first image light; a second input image source provide second image light; a first IDA waveguide; and a second IDA waveguide. The first IDA waveguide and the second IDA waveguide may include an overlapping region where a first two-dimensionally expanded first image light, a second two-dimensionally expanded first image light, a first two-dimensionally expanded second image light, and a second two-dimensionally expanded second image light is ejected towards an eyebox. Advantageously, resolution may be enhanced and field of view may be expanded through the use of overlapping IDA waveguides.

公开(公告)号：US20230358962A1

公开(公告)日：2023-11-09

申请号：US18182964

申请日：2023-03-13

Applicant: DigiLens Inc.

Inventor： Milan Momcilo Popovich ,  Jonathan David Waldern ,  Alastair John Grant

IPC: G02B6/27 ,  G02B27/01 ,  G02B27/00 ,  G02B6/34 ,  G02B27/28

CPC classification number: G02B6/2726 ,  G02B27/017 ,  G02B27/0081 ,  G02B6/2773 ,  G02B6/34 ,  G02B27/283 ,  G02B27/286

Abstract: A waveguide apparatus, comprises: disposed in at least one layer: an input coupler; a first fold grating; a second fold grating; an output coupler; and a source of light optically coupled to the waveguide providing at least first and second polarizations of the light and at least one wavelength. The input coupler is configured to cause the first polarization light to travel along a first total internal reflection (TIR) path and the second polarization light to travel along a second TIR path.

公开(公告)号：US11709373B2

公开(公告)日：2023-07-25

申请号：US17659639

申请日：2022-04-18

Applicant: DigiLens Inc.

Inventor： Milan Momcilo Popovich ,  Jonathan David Waldern ,  Alastair John Grant

IPC: G02B27/42 ,  G02B27/48 ,  G02B5/32 ,  F21V8/00 ,  G02F1/29 ,  G02F1/313

CPC classification number: G02B27/48 ,  G02B5/32 ,  G02B6/0016 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0083 ,  G02B27/4261 ,  G02F1/292 ,  G02F1/3136

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.

公开(公告)号：US11703645B2

公开(公告)日：2023-07-18

申请号：US17457893

申请日：2021-12-06

Applicant: DigiLens Inc. ,  Rockwell Collins, Inc.

Inventor： Jonathan David Waldern ,  Alastair John Grant ,  Milan Momcilo Popovich ,  James H. Stanley ,  Robert D. Brown

IPC: G02B6/34 ,  G02B5/18 ,  G02B27/42 ,  G02B27/01 ,  G02F1/1334 ,  G02B5/32 ,  G02B6/124 ,  F21V8/00

CPC classification number: G02B6/34 ,  G02B5/1819 ,  G02B5/1823 ,  G02B5/32 ,  G02B6/0016 ,  G02B6/124 ,  G02B27/0172 ,  G02B27/4205 ,  G02B27/4261 ,  G02F1/13342 ,  G02B2027/0125

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.

公开(公告)号：US11681143B2

公开(公告)日：2023-06-20

申请号：US16942418

申请日：2020-07-29

Applicant: DigiLens Inc.

Inventor： Jonathan David Waldern ,  Alastair John Grant ,  Milan Momcilo Popovich

IPC: G02B27/00 ,  G02F1/295 ,  F21V8/00

CPC classification number: G02B27/0081 ,  G02B6/005 ,  G02B6/0026 ,  G02F1/2955 ,  G02F2203/24

Abstract: Systems and methods for multiplying the resolution and field-of-view of pixelated displays in accordance with various embodiments of the invention are illustrated. One embodiment includes an apparatus having an image projector for directing light from a pixelated image source into unique angular directions, an image processor electrically connected to the image projector for computing native images of the image source corresponding to first and second field-of-view portions and for computing shifted images in a predefined direction corresponding to the first and second field-of-view portions for sequential display by the image projector, a first set of gratings having a native configuration for propagating the light of the native image and at least one shifted configuration for propagating the light of at least one shifted image, and a second set of gratings having a first configuration for projecting the first field-of-view portion and a second configuration for projecting the second field-of-view portion.

公开(公告)号：US20230114549A1

公开(公告)日：2023-04-13

申请号：US17736005

申请日：2022-05-03

Applicant: Rockwell Collins, Inc. ,  DIGILENS INC.

Inventor： Robert D. Brown ,  Alastair John Grant ,  Wyatt L. Hendrick ,  Milan Momcilo Popovich ,  James H. Stanley ,  Jonathan David Waldern

IPC: G02F1/29 ,  G02B5/18 ,  G02B27/42 ,  G02B27/01

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 lumina 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.

公开(公告)号：US20230081115A1

公开(公告)日：2023-03-16

申请号：US17933462

申请日：2022-09-19

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

IPC: G02F1/29 ,  G02B5/18 ,  G02B27/42 ,  G02B27/01

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.

公开(公告)号：US11592614B2

公开(公告)日：2023-02-28

申请号：US17648511

申请日：2022-01-20

Applicant: DigiLens Inc.

Inventor： Jonathan David Waldern ,  Alastair John Grant ,  Milan Momcilo Popovich ,  Shibu Abraham ,  Baeddan George Hill ,  Tsung-Jui Ho

IPC: G02B6/02 ,  G02B6/293 ,  G02B6/12 ,  G02B5/18 ,  G02F1/13

Abstract: Improvements to gratings for use in waveguides and methods of producing them are described herein. Deep surface relief gratings (SRGs) may offer many advantages over conventional SRGs and Bragg gratings, an important one being a higher S-diffraction efficiency. In one embodiment, deep SRGs can be implemented as polymer surface relief gratings or evacuated Bragg gratings (EBGs). EBGs can be formed by first recording a holographic polymer dispersed liquid crystal (HPDLC) grating. Removing the liquid crystal from the cured grating provides a polymer surface relief grating. Polymer surface relief gratings have many applications including for use in waveguide-based displays.

公开(公告)号：US11573483B2

公开(公告)日：2023-02-07

申请号：US17195418

申请日：2021-03-08

Applicant: DigiLens Inc.

Inventor： Jonathan David Waldern ,  Alastair John Grant ,  Milan Momcilo Popovich

IPC: G03B21/14 ,  H04N13/332 ,  G02B6/122 ,  G02B27/01 ,  G02B6/34 ,  G06F3/01 ,  G06T3/40

Abstract: Systems integrating display resolution-multiplication solutions can be implemented in a variety of different ways. In many embodiments, the system includes an image projector for projecting image light, an image processor for computing a native image and at least one image shifted in a predefined direction, and at least one switchable grating capable of being switched between diffracting and non-diffracting states. In some embodiments, the switchable grating is optically coupled to the image projector. In a number of embodiments, the switchable gratings have a first configuration for propagating the native image light and at least one other configuration for propagating shifted image light having an angular displacement corresponding to the image shift in a predefined direction. By displaying the native and shifted images sequentially within a human eye integration period, the display resolution can be multiplied.

公开(公告)号：US20220404538A1

公开(公告)日：2022-12-22

申请号：US17810095

申请日：2022-06-30

Applicant: DigiLens Inc.

Inventor： Jonathan David Waldern ,  Milan Popovich ,  Alastair John Grant

IPC: F21V8/00 ,  G02B5/32

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.