公开(公告)号：US20220404608A1

公开(公告)日：2022-12-22

申请号：US17721760

申请日：2022-04-15

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Robin Sharma ,  Yun-Han Lee ,  Difei Qi ,  Konstantin Kudinov

IPC: G02B26/06 ,  H04N5/232 ,  H04N5/225 ,  H04N17/00 ,  G02B27/00

Abstract: An apparatus comprising (1) a conoscope configured to receive an image emitted by a display device through a corrective lens, (2) a variable compensation element coupled to the conoscope, wherein the variable compensation element is capable of selectively modifying the image emitted by the display device to compensate for an optical effect imparted by the corrective lens on the image, and (3) a controller coupled to the variable compensation element, wherein the controller (1) receives a compensation parameter representative of the optical effect imparted by the corrective lens on the image, (2) selects, based at least in part on the compensation parameter, a feature of the variable compensation element that compensates for the optical effect, and (3) causing the feature of the variable compensation element to be applied to the image. Various other apparatuses, systems, and methods are also disclosed.

公开(公告)号：US20240184124A1

公开(公告)日：2024-06-06

申请号：US18237332

申请日：2023-08-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Ali Altaqui ,  Xuan Wang ,  Lu Lu ,  Michael Escuti ,  Chulwoo Oh ,  Hsien-Hui Cheng ,  Jihwan Kim ,  Yuge Huang ,  Yun-Han Lee ,  Brian Wheelwright

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/09 ,  G02F1/01

CPC classification number: G02B27/0179 ,  G02B5/3083 ,  G02B27/0172 ,  G02B27/0922 ,  G02B27/0955 ,  G02F1/0136 ,  G02B2027/0185

Abstract: A multi-focal system includes a display pixel array, a pixelated polarization array, and a Pancharatnam-Berry phase (PBP) lens. The display pixel array includes a first display pixels generating first display light and a second display pixels generating second display light. The pixelated polarization array has first pixels and second pixels. The first pixels are aligned with the first display pixels to generate a first polarized light having a first polarization orientation. The second pixels are aligned with the second display pixels to generate a second polarized light having a second polarization orientation different from the first polarization orientation. The PBP lens is configured to focus the first polarized light having the first polarization orientation to a first focal length and focus the second polarized light having the second polarization orientation to a second focal length that is greater than the first focal length.

公开(公告)号：US20240027674A1

公开(公告)日：2024-01-25

申请号：US18063504

申请日：2022-12-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Tingling Rao ,  Wanli Chi ,  Xiayu Feng ,  Yun-Han Lee ,  Andrew John Ouderkirk ,  Poer Sung

IPC: F21V8/00 ,  G02B27/01 ,  G03H1/02

CPC classification number: G02B6/0038 ,  G02B6/0016 ,  G02B6/0065 ,  G02B27/0172 ,  G03H1/0248 ,  G02B2027/0178

Abstract: An optical element includes a waveguide body that is configured to guide light by total internal reflection from an input end to an output end, an input coupling structure located at the input end for coupling light into the waveguide body, and an output coupling structure located at the output end for coupling light out of the waveguide body, where the waveguide body includes a layer of an organic solid crystal. Such an optical element may have low weight and exhibit good color uniformity.

公开(公告)号：US11869560B2

公开(公告)日：2024-01-09

申请号：US17541223

申请日：2021-12-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Hyunmin Song ,  Sanaz Alali ,  Yun-Han Lee ,  Zhisheng Yun

IPC: G11B7/1353 ,  G11B7/131 ,  G02B27/28

CPC classification number: G11B7/1353 ,  G02B27/283 ,  G11B7/131

Abstract: A system includes a polarization selective optical element configured to diffract a light reflected by an object into a plurality of signal lights. The system also includes at least one optical sensor configured to receive the signal lights and generate a plurality of tracking signals for tracking the object.

公开(公告)号：US11860573B1

公开(公告)日：2024-01-02

申请号：US17229844

申请日：2021-04-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Mengfei Wang ,  Junren Wang ,  Yun-Han Lee ,  Stephen Choi ,  Lu Lu ,  Barry David Silverstein

IPC: G03H1/12 ,  G03H1/04 ,  G02B27/28 ,  G03H1/02

CPC classification number: G03H1/0402 ,  G02B27/286 ,  G03H1/0248 ,  G03H1/0465 ,  G03H2001/0216 ,  G03H2001/0413 ,  G03H2001/0439 ,  G03H2001/0441 ,  G03H2223/20 ,  G03H2223/22 ,  G03H2223/23 ,  G03H2223/24 ,  G03H2227/05

Abstract: A system includes a mask configured to forwardly diffract an input beam as a first set of two polarized beams. The system also includes a polarization conversion element configured to convert the first set of two polarized beams into a second set of two polarized beams having opposite handednesses. The two polarized beams having opposite handednesses interfere with one another to generate a polarization interference pattern.

公开(公告)号：US11675188B2

公开(公告)日：2023-06-13

申请号：US17474362

申请日：2021-09-14

Applicant: Meta Platforms Technologies, LLC

Inventor： Yun-Han Lee ,  Lu Lu ,  Mengfei Wang ,  Fenglin Peng ,  Junren Wang

IPC: G02B27/00 ,  G02B27/01 ,  G03H1/02 ,  G02B5/32

CPC classification number: G02B27/0037 ,  G02B5/32 ,  G02B27/0172 ,  G02B27/0179 ,  G03H1/0248 ,  G02B2027/0109 ,  G02B2027/0116 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02B2027/0187 ,  G03H2001/0264

Abstract: A system is provided. The system includes a light source configured to emit an infrared light to illuminate an eye of a user. The system includes a grating disposed facing the eye and including a birefringent material film configured with a uniform birefringence lower than or equal to 0.1. The grating is configured to diffract the infrared light reflected from the eye, and transmit a visible light from a real world environment toward the eye, with a diffraction efficiency less than a predetermined threshold. The system includes an optical sensor configured to receive the diffracted infrared light and generate an image of the eye based on the diffracted infrared light.

公开(公告)号：US11635669B1

公开(公告)日：2023-04-25

申请号：US17005247

申请日：2020-08-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Lu Lu ,  Hao Yu ,  Mengfei Wang ,  Junren Wang ,  Yun-Han Lee ,  Nicholas John Diorio ,  Barry David Silverstein

IPC: G02F1/29 ,  G02F1/1337

Abstract: A device includes a first substrate and a second substrate. The device also includes a birefringent medium layer disposed between the first substrate and the second substrate. Orientations of directors of optically anisotropic molecules included in the birefringent medium layer varying periodically with an in-plane pitch tunable by an external field to adjust a diffraction angle of a light beam diffracted by the birefringent medium layer.