公开(公告)号：US12007569B2

公开(公告)日：2024-06-11

申请号：US18139736

申请日：2023-04-26

Applicant: Snap Inc.

Inventor： Miller Schuck ,  Robert Matthew Bates

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/28 ,  G02C11/00 ,  G09G3/00 ,  G06F3/01 ,  H04N13/239

CPC classification number: G02B27/0172 ,  G02B5/3083 ,  G02B27/283 ,  G02C11/10 ,  G09G3/002 ,  G02B2027/014 ,  G02B2027/0178 ,  G06F3/012 ,  G06F3/013 ,  H04N13/239

Abstract: A compact projector for eyewear including a refractive lens to achromatize an image and to reduce the size of the projector. The compact projector includes two total internal reflection (TIR) prisms, a polarizing beamsplitter, a quarter-wave plate, and the refractive lens combining refractive and reflective power, referred to as catadioptric. In one example, a light source generates light that is directed through a collector, into a first TIR prism, to the polarizing beamsplitter, and to a display panel. The display panel modulates the light and creates an image. The image is directed through the beamsplitter, into a second TIR prism, through a quarter-wave plate, and then to the refractive lens. The refractive lens reflects the image back into the second TIR prism, and which image then exits to a waveguide. In a second example, the display generates an illuminated image which is then processed as in the first example.

公开(公告)号：US11681148B2

公开(公告)日：2023-06-20

申请号：US17952485

申请日：2022-09-26

Applicant: Snap Inc.

Inventor： Miller Schuck ,  Robert Matthew Bates

IPC: G02B27/01 ,  G02B27/28 ,  G09G3/00 ,  G02B5/30 ,  G02C11/00 ,  G06F3/01 ,  H04N13/239

CPC classification number: G02B27/0172 ,  G02B5/3083 ,  G02B27/283 ,  G02C11/10 ,  G09G3/002 ,  G02B2027/014 ,  G02B2027/0178 ,  G06F3/012 ,  G06F3/013 ,  H04N13/239

Abstract: A compact projector for eyewear including a refractive lens to achromatize an image and to reduce the size of the projector. The compact projector includes two total internal reflection (TIR) prisms, a polarizing beamsplitter, a quarter-wave plate, and the refractive lens combining refractive and reflective power, referred to as catadioptric. In one example, a light source generates light that is directed through a collector, into a first TIR prism, to the polarizing beamsplitter, and to a display panel. The display panel modulates the light and creates an image. The image is directed through the beamsplitter, into a second TIR prism, through a quarter-wave plate, and then to the refractive lens. The refractive lens reflects the image back into the second TIR prism, and which image then exits to a waveguide. In a second example, the display generates an illuminated image which is then processed as in the first example.

公开(公告)号：US20230266596A1

公开(公告)日：2023-08-24

申请号：US18139736

申请日：2023-04-26

Applicant: Snap Inc.

Inventor： Miller Schuck ,  Robert Matthew Bates

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/28 ,  G02C11/00 ,  G09G3/00

CPC classification number: G02B27/0172 ,  G02B5/3083 ,  G02B27/283 ,  G02C11/10 ,  G09G3/002 ,  H04N13/239

Abstract: A compact projector for eyewear including a refractive lens to achromatize an image and to reduce the size of the projector. The compact projector includes two total internal reflection (TIR) prisms, a polarizing beamsplitter, a quarter-wave plate, and the refractive lens combining refractive and reflective power, referred to as catadioptric. In one example, a light source generates light that is directed through a collector, into a first TIR prism, to the polarizing beamsplitter, and to a display panel. The display panel modulates the light and creates an image. The image is directed through the beamsplitter, into a second TIR prism, through a quarter-wave plate, and then to the refractive lens. The refractive lens reflects the image back into the second TIR prism, and which image then exits to a waveguide. In a second example, the display generates an illuminated image which is then processed as in the first example.

公开(公告)号：US11656471B2

公开(公告)日：2023-05-23

申请号：US17847944

申请日：2022-06-23

Applicant: Snap Inc.

Inventor： Miller Schuck

IPC: G02B27/01 ,  H04N13/344 ,  H04N13/239 ,  G02B30/34 ,  G02C11/00 ,  G02C1/06

CPC classification number: G02B27/0172 ,  G02B30/34 ,  G02C11/10 ,  H04N13/239 ,  H04N13/344 ,  G02B2027/014 ,  G02B2027/0134 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02C1/06

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.