Eyewear including a push-pull lens set

Patent metadata

Field	Value
Publication number	US-11442275-B2
Application number	US-202017128158-A
Country	US
Kind code	B2
Filing date	Dec 20, 2020
Priority date	Dec 20, 2020
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

Eyewear having a stereoscopic display including a lens system, and a push-pull lens set including prisms to produce a binocular overlap of two images that coincides with an accommodation plane. The overlap of two virtual images generated by a respective display as seen by the user's two eyes provides user comfort. The stereoscopic display may have a single accommodation plane, where the binocular overlap of the two virtual images depends on the location of the accommodation plane and the depth of the content formed by disparity in the two images. By providing the content at or near the location where the virtual images are at least substantially overlapped, the user viewing comfort is improved. The binocular overlap is controlled by tilting or steering the virtual images inward, such that the overlap occurs at the accommodation plane.

First claim

What is claimed is:

1. Eyewear, comprising:
a frame;
a stereoscopic display supported by the frame;
an image processor configured to process images and display the processed images on the stereoscopic display;
a first optical assembly and a second optical assembly each configured to receive and pass a real-world image, and also to pass the displayed processed images, wherein each of the first and second optical assembly include a first lens configured to direct the real-world image toward the stereoscopic display, a first prism physically separate from the first lens and configured to direct the real-world image toward the stereoscopic display, a second lens configured to compensate for the first lens and direct the real-world image, and a second prism physically separate from the second lens and configured to direct the displayed processed image toward a single accommodation plane; and
a respective lens set coupled to each of the first and second optical assemblies, the respective lens set configured to produce a binocular overlap of the respective displayed processed images that coincides with the single accommodation plane.

2. The eyewear of claim 1 , wherein the binocular overlap of the respective real-world image and the displayed processed images is nearly 100%.

3. The eyewear of claim 1 , wherein the binocular overlap of the displayed processed images is a function of the location of the accommodation plane and a depth of content formed by a disparity in the displayed processed images.

4. The eyewear of claim 1 , wherein the first prism is configured to tilt the real-world image inward toward the stereoscopic display, and the second prism is configured to tilt the real-world image outward.

5. The eyewear of claim 1 wherein the first prism is spatially coupled to the first lens of the first optical assembly, and the second prism is spatially coupled to the second lens of the first optical assembly.

6. The eyewear of claim 1 , wherein the first prism is directly coupled to the first lens of the first optical assembly, and the second prism is directly coupled to second lens of the first optical assembly.

7. The eyewear of claim 1 , wherein the first prism and the second prism each comprise a wedge-shaped prism.

8. The eyewear of claim 1 , wherein the displayed processed image comprises an immersive image.

9. The eyewear of claim 1 , wherein the eyewear comprises a pair of cameras, and wherein the image processor is configured to process the images from the pair of cameras to generate the processed images.

10. The eyewear of claim 1 , wherein the optical assembly further includes a waveguide, wherein the first prism is disposed between the first lens and the waveguide, and the second prism is disposed between the waveguide and the second lens.

11. A method of operating eyewear having:
a frame;
a stereoscopic display supported by the frame;
an image processor configured to process images and display the processed images on the stereoscopic display;
a first optical assembly and a second optical assembly each configured to receive and pass a real-world image, and also to pass the displayed processed images, wherein each of the first and second optical assembly include a first lens configured to direct the real-world image toward the stereoscopic display, a first prism physically separate from the first lens and configured to direct the real-world image toward the stereoscopic display, a second lens configured to compensate for the first lens and direct the real-world image, and a second prism physically separate from the second lens and configured to direct the displayed processed image toward a single accommodation plane; and
a respective lens set coupled to each of the first and second optical assemblies, the respective lens set configured to produce a binocular overlap of the respective displayed processed images that coincides with the single accommodation plane, comprising the steps of: the image processor processing images and displaying the processed images on the stereoscopic display;
the first optical assembly and the second optical assembly each receiving and passing the real-world image and the displayed processed images; and
the lens sets producing a binocular overlap of the displayed processed images that coincides with a single accommodation plane.

12. The method of claim 11 , wherein the binocular overlap of the respective real-world image and the displayed processed images is nearly 100%.

13. The method of claim 11 , wherein the binocular overlap of the displayed processed images is a function of the location of the accommodation plane and a depth of content formed by a disparity in the displayed processed images.

14. The method of claim 11 wherein the first prism is configured to tilt the real-world image inward toward the stereoscopic display, and the second prism is configured to tilt the real-world image outward.

15. The method of claim 11 , wherein the first prism is spatially coupled to the first lens of the first optical assembly, and the second prism is spatially coupled to the second lens of the first optical assembly.

16. The method of claim 11 , wherein the first prism is directly coupled to the first lens of the first optical assembly, and the second prism is directly coupled to the second lens of the first optical assembly.

17. The method of claim 11 , wherein the first prism and the second prism each comprise a wedge-shaped prism.

18. The method of claim 11 , wherein the displayed processed image comprises an immersive image.

19. The method of claim 11 , wherein the eyewear comprises a pair of cameras, and wherein the image processor processes the images from the pair of cameras and generates the processed images.

20. The method of claim 11 , wherein the optical assembly further includes a waveguide, wherein the first prism is disposed between the first lens and the waveguide, and the second prism is disposed between the waveguide and the second lens.

Assignees

• Schuck Miller
• Snap Inc

Inventors

• Schuck Miller

Classifications

• 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

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title

• G02B27/0179

  Display position adjusting means not related to the information to be displayed · CPC title

• G02B2027/0129

  comprising devices for correcting parallax · CPC title

• G02B27/0172 Primary

  characterised by optical features · CPC title