公开(公告)号：CA3086336C

公开(公告)日：2022-08-16

申请号：CA3086336

申请日：2018-01-27

Applicant: LEIA INC

Inventor： AIETA FRANCESCO ,  LI XUEJIAN ,  HOEKMAN THOMAS ,  FATTAL DAVID A

IPC: F21V8/00 ,  G02B27/28

Abstract: A polarization recycling backlight and a multiview display employ a polarization-selective scattering feature configured to preferentially scatter out a first polarization component of guided light and a polarization conversion structure configured to convert a portion of a second polarization component of the guided light into the first polarization component. The polarization conversion structure includes a subwavelength grating.

公开(公告)号：CA3089955A1

公开(公告)日：2019-09-06

申请号：CA3089955

申请日：2018-03-01

Applicant: LEIA INC

Inventor： LI XUEJIAN ,  FATTAL DAVID A ,  AIETA FRANCESCO ,  MA MING

IPC: F21V8/00 ,  G02B27/42

Abstract: A static multiview display and method employ an array of diffraction gratings to provide a multiview image having a direction that is a function of both color and a propagation angle of a collimated guided light beam. The static multiview display includes a light guide configured to guide light in a longitudinal direction and a light source configured to provide the collimated guided light beam, the propagation angle within the light guide being determined by a longitudinal offset of an optical emitter of the light source. The static multiview display further includes the array of diffraction gratings are configured to scatter out a portion of the collimated guided light beam as a plurality of directional light beams representing the multiview image.

公开(公告)号：CA3044810A1

公开(公告)日：2018-07-12

申请号：CA3044810

申请日：2017-09-27

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LI XUEJIAN ,  AIETA FRANCESCO

IPC: F21V8/00 ,  G02B27/22 ,  G02B27/42

Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions. The static multiview display includes a light guide configured to guide plurality of guided light beams and a light source configured to provide the guided light beam plurality having the different radial directions. The static multiview display further includes a plurality of diffraction gratings configured to provide from a portion of the guided light beams directional light beams having intensities and principal angular directions corresponding to view pixels of the static multiview image.

公开(公告)号：CA3074726A1

公开(公告)日：2019-04-04

申请号：CA3074726

申请日：2017-09-28

Applicant: LEIA INC

Inventor： LI XUEJIAN ,  FATTAL DAVID A ,  AIETA FRANCESCO

IPC: F21V8/00

Abstract: A grating-coupled light guide concentrates light and diffractively redirects the concentrated light at a non-zero propagation angle as guided light having a predetermined spread angle. The grating-coupled light guide includes a light guide, an optical concentrator, and a grating coupler. The optical concentrator is configured to concentrate light from a light source as concentrated light and the grating coupler is configured to diffractively redirect the concentrated light into the light guide as the guided light. Characteristics of the optical concentrator and grating coupler are configured in combination to determine the non-zero propagation angle and predetermined spread angle. A grating-coupled display system further includes an array of light valves configured to modulate emitted light as a displayed image.

公开(公告)号：CA3055533A1

公开(公告)日：2018-10-11

申请号：CA3055533

申请日：2018-03-01

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  AIETA FRANCESCO

IPC: F21V8/00 ,  G02B27/22 ,  G02B27/42

Abstract: A unilateral backlight and a unilateral multiview display employ an array of unilateral diffractive elements configured to provide directional light beams having a unilateral direction. A unilateral diffractive element of the unilateral diffractive element array comprises a slanted diffraction grating configured to provide a directional light beam by diffractive scattering of light guided in a light guide. The unilateral multiview display further includes light valves configured to modulate a plurality of directional light beams as multiview image having the unilateral direction.

公开(公告)号：CA3045328A1

公开(公告)日：2018-08-02

申请号：CA3045328

申请日：2017-01-30

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  AIETA FRANCESCO

IPC: G02B6/12 ,  F21V8/00

Abstract: Multiview backlighting employs a plasmonic multibeam element having a color-tailored emission pattern to provide directional light beams corresponding to a plurality of different views of a multiview image. A multiview backlight includes a light guide configured to guide light as guided light and a plasmonic multibeam element. The plasmonic multibeam element includes a plasmonic material and is configured to provide emitted light having a color-tailored emission pattern from the guided light. The emitted light including a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display and the color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.

公开(公告)号：CA3055533C

公开(公告)日：2022-08-30

申请号：CA3055533

申请日：2018-03-01

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  AIETA FRANCESCO

IPC: G02B30/33 ,  F21V8/00 ,  G02B27/42

Abstract: A unilateral backlight and a unilateral multiview display employ an array of unilateral diffractive elements configured to provide directional light beams having a unilateral direction. A unilateral diffractive element of the unilateral diffractive element array comprises a slanted diffraction grating configured to provide a directional light beam by diffractive scattering of light guided in a light guide. The unilateral multiview display further includes light valves configured to modulate a plurality of directional light beams as multiview image having the unilateral direction.

公开(公告)号：CA3070560C

公开(公告)日：2022-05-24

申请号：CA3070560

申请日：2017-07-21

Applicant: LEIA INC

Inventor： MA MING ,  FATTAL DAVID A ,  AIETA FRANCESCO

IPC: F21V8/00 ,  G02F1/1335

Abstract: A multiview backlight and a multiview display employ a microlens to adjust directional light beams to have directions corresponding to respective different view directions of the multiview display. The multiview backlight includes a light guide configured to guide light as guided light, a multibeam element configured to scatter from the light guide a portion of the guided light as a plurality of directional light beams, and the microlens configured to adjust directions of the directional light beams. The multiview display further includes a multiview pixel configured to modulate the plurality of directional light beams and provide a plurality of different views of the multiview display, the microlens being between the multibeam element and the multiview pixel.

公开(公告)号：CA3045328C

公开(公告)日：2021-08-03

申请号：CA3045328

申请日：2017-01-30

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  AIETA FRANCESCO

IPC: G02B6/12 ,  F21V8/00

Abstract: Multiview backlighting employs a plasmonic multibeam element having a color-tailored emission pattern to provide directional light beams corresponding to a plurality of different views of a multiview image. A multiview backlight includes a light guide configured to guide light as guided light and a plasmonic multibeam element. The plasmonic multibeam element includes a plasmonic material and is configured to provide emitted light having a color-tailored emission pattern from the guided light. The emitted light includes a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display and the color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.

公开(公告)号：CA3044810C

公开(公告)日：2021-05-25

申请号：CA3044810

申请日：2017-09-27

Applicant: LEIA INC

Inventor： FATTAL DAVID A ,  LI XUEJIAN ,  AIETA FRANCESCO

IPC: G02B30/33 ,  F21V8/00 ,  G02B27/42

Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions. The static multiview display includes a light guide configured to guide plurality of guided light beams and a light source configured to provide the guided light beam plurality having the different radial directions. The static multiview display further includes a plurality of diffraction gratings configured to provide from a portion of the guided light beams directional light beams having intensities and principal angular directions corresponding to view pixels of the static multiview image.