Reverse pass-through glasses for augmented reality and virtual reality devices

Patent metadata

Field	Value
Publication number	US-12095975-B2
Application number	US-202117555037-A
Country	US
Kind code	B2
Filing date	Dec 17, 2021
Priority date	Dec 23, 2020
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

First claim

What is claimed is:

1. A device, comprising:
a near-eye display configured to provide an image to a subject;
an eye imaging system configured to collect an image of the subject; and
a light field display configured to provide an autostereoscopic image of a three-dimensional model of the subject to an onlooker, wherein the autostereoscopic image includes a perspective-corrected view of the subject from multiple viewpoints within a field of view of the light field display.

2. The device of claim 1 , wherein the light field display comprises a pixel array and a multi-lenslet array, wherein the pixel array is configured to provide a segmented view of the subject to the multi-lenslet array, the segmented view including multiple portions of the field of view of the light field display at a selected viewpoint.

3. The device of claim 1 , wherein the eye imaging system comprises two cameras to collect a binocular view of the subject.

4. The device of claim 1 , further comprising one or more processors and a memory storing instructions which, when executed by the one or more processors generates a three-dimensional representation of the subject from the image of the subject.

5. The device of claim 1 , wherein the near-eye display provides the subject a three-dimensional representation of an environment, including the onlooker.

6. The device of claim 1 , wherein the eye imaging system includes an infrared camera that receives the image of the subject in a reflective mode from a dichroic mirror adjacent to the light field display.

7. The device of claim 1 , wherein the light field display comprises a micro lens array having multiple micro lenses arranged in a two-dimensional pattern having a pre-selected pitch to avoid cross-talk between the perspective-corrected view for two viewpoints, for the onlooker.

8. The device of claim 1 , wherein the light field display further comprises an immersed stop adjacent to a micro lens array, the immersed stop including multiple apertures such that each aperture is aligned with a center of each micro lens in the micro lens array.

9. The device of claim 1 , wherein the light field display includes a pixel array split in multiple active segments, wherein each active segment in the pixel array has a dimension corresponding to a diameter of a refractive element in a multi-lenslet array.

10. The device of claim 1 , further comprising one or more processors and a memory storing instructions which, when executed by the one or more processors, cause the light field display to split a pixel array into multiple active segments, each active segment configured to provide a portion of the field of view of the light field display at a selected viewpoint for the onlooker.

Assignees

• Meta Platforms Tech Llc

Inventors

• Matsuda Nathan
• Wheelwright Brian
• Hegland Joel
• Lombardi Stephen Anthony
• Saragih Jason
• Simon Kreuz Tomas
• Saito Shunsuke
• Zollhoefer Michael
• Raj Amit
• Hays James Henry

Classifications

• H04N23/20

  for generating image signals from infrared radiation only · CPC title

• H04N13/239

  using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence) · CPC title

• G02B30/10

  using integral imaging methods · CPC title

• H04N13/383

  for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes · CPC title

• G06T2207/20081

  Training; Learning · CPC title