公开(公告)号：US20240345388A1

公开(公告)日：2024-10-17

申请号：US18134202

申请日：2023-04-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Yang Yang ,  Mohamed Tarek Ahmed El-Haddad ,  Junjie Hu

IPC: G02B27/00 ,  F21V8/00 ,  G06F3/01 ,  G06T7/73 ,  H04N23/56

CPC classification number: G02B27/0093 ,  G02B6/0026 ,  G02B6/005 ,  G06F3/013 ,  G06T7/73 ,  H04N23/56 ,  G06T2207/30201

Abstract: A waveguide system in a lens assembly of a head mounted device may be used to support eye tracking operations. The waveguide system includes a waveguide, an input coupler, and an output coupler. The input coupler is disposed in the waveguide, and the input coupler is configured to in-couple light into the waveguide. The output coupler is disposed in the waveguide and is configured to out-couple the light from the waveguide. The output coupler includes at least one trapezoidal portion to condition the depth of field for the waveguide system. The output coupler may have two (dual) trapezoidal portions that are similar to the shape of a bowtie or hourglass to configure the depth of field of the waveguide system along a particular direction (e.g., the y-axis). The bowtie shape of the output coupler provides uniform in-coupling of light from the input coupler along a range of angles.

公开(公告)号：US20240319513A1

公开(公告)日：2024-09-26

申请号：US18126367

申请日：2023-03-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Mohamed Tarek Ahmed El-Haddad ,  Yang Yang ,  Junjie Hu

IPC: G02B27/01 ,  G02B27/42 ,  G06F3/01 ,  G06T7/70 ,  H04N23/55

CPC classification number: G02B27/0179 ,  G02B27/0172 ,  G02B27/4205 ,  G06F3/013 ,  G06T7/70 ,  H04N23/55 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A lens assembly for a head mounted device may be configured to in-couple light from an eyebox region using a number of waveguide systems coupled to a number of image sensors, for example, for one or both lens assemblies in the head mounted device. The waveguide systems may be positioned in the lens assembly. The waveguide systems may be configured to in-couple light from various portions of the eyebox region. The waveguide systems may be configured to couple the light from a center region of the lens assembly to a number of peripheral regions of the lens assembly. The image sensors may be optically coupled to the waveguide systems and may be configured to receive portions of the light from the waveguide systems.

公开(公告)号：US12093450B2

公开(公告)日：2024-09-17

申请号：US17972908

申请日：2022-10-25

Applicant: Meta Platforms Technologies, LLC

Inventor： Mohamed Tarek Ahmed El-Haddad ,  Babak Amirsolaimani ,  Francesco Larocca ,  Yang Yang ,  Junjie Hu

IPC: G06F3/01 ,  G02B27/01

CPC classification number: G06F3/013 ,  G02B27/0172 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.

公开(公告)号：US20240231479A9

公开(公告)日：2024-07-11

申请号：US17972908

申请日：2022-10-25

Applicant: Meta Platforms Technologies, LLC

Inventor： Mohamed Tarek Ahmed El-Haddad ,  Babak Amirsolaimani ,  Francesco Larocca ,  Yang Yang ,  Junjie Hu

IPC: G06F3/01 ,  G02B27/01

CPC classification number: G06F3/013 ,  G02B27/0172 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.

公开(公告)号：US20240134447A1

公开(公告)日：2024-04-25

申请号：US17972908

申请日：2022-10-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Mohamed Tarek Ahmed El-Haddad ,  Babak Amirsolaimani ,  Francesco Larocca ,  Yang Yang ,  Junjie Hu

IPC: G06F3/01 ,  G02B27/01

CPC classification number: G06F3/013 ,  G02B27/0172 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.