# US 11,442,275 B2 · Eyewear including a push-pull lens set > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,275 B2 - Document ID: US11442275B2 - Status: Granted - Kind: B2 - Application number: 17/128,158 - Filed: 2020-12-20 - Published: 2022-06-23 - Granted: 2022-09-13 - Earliest claimed: 2020-12-20 - Assignees: Snap Inc. - Applicants: Miller Schuck - Inventors: Miller Schuck - Web page: https://patentgrep.com/patent/US11442275B2 ## CPC - G02B 27/0172: {characterised by optical features} - G02B 5/04: Prisms - G02B 27/0179: {Display position adjusting means not related to the information to be displayed} - G02B 30/34: Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers - G02C 11/10: {Electronic devices other than hearing aids} - H04N 13/239: using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence) - H04N 13/344: with head-mounted left-right displays - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G02B 2027/0129: {comprising devices for correcting parallax} - G02B 2027/0134: {of stereoscopic type} - G02B 2027/0138: {comprising image capture systems, e.g. camera} - G02B 2027/014: {comprising information/image processing systems} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02C 1/06: Bridge or browbar secured to or integral with closed rigid rims for the lenses - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The eyewear of claim 1, wherein the binocular overlap of the respective real-world image and the displayed processed images is nearly 100%. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 1) 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. ### Claim 6 (depends on 1) 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. ### Claim 7 (depends on 1) The eyewear of claim 1, wherein the first prism and the second prism each comprise a wedge-shaped prism. ### Claim 8 (depends on 1) The eyewear of claim 1, wherein the displayed processed image comprises an immersive image. ### Claim 9 (depends on 1) 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. ### Claim 10 (depends on 1) 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. ### Claim 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. ### Claim 12 (depends on 11) The method of claim 11, wherein the binocular overlap of the respective real-world image and the displayed processed images is nearly 100%. ### Claim 13 (depends on 11) 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. ### Claim 14 (depends on 11) 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. ### Claim 15 (depends on 11) 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. ### Claim 16 (depends on 11) 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. ### Claim 17 (depends on 11) The method of claim 11, wherein the first prism and the second prism each comprise a wedge-shaped prism. ### Claim 18 (depends on 11) The method of claim 11, wherein the displayed processed image comprises an immersive image. ### Claim 19 (depends on 11) 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. ### Claim 20 (depends on 11) 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.