公开(公告)号：US20240004045A1

公开(公告)日：2024-01-04

申请号：US18314843

申请日：2023-05-10

Applicant: APPLE INC.

Inventor： Rami Shnaiderman ,  Ariel Lipson ,  Artiom Sydnev

IPC: G01S7/493 ,  G01S7/4912 ,  G01S17/58

CPC classification number: G01S7/493 ,  G01S17/58 ,  G01S7/4917

Abstract: An optical sensing device includes an optical transmitter, coupled to transmit outgoing modulated radiation from a coherent radiation source at a predefined wavelength toward a target. A splitter splits off a fraction of the outgoing modulated radiation. An optical element is disposed in a path of the outgoing modulated radiation following the splitter. A mixer mixes the fraction of the outgoing modulated radiation with incoming radiation, including the modulated radiation that has been reflected from the target via the optical element. An optical delay line conveys the fraction of the outgoing modulated radiation from the splitter to the mixer over a first optical length that is within one wave, at the predefined wavelength, of a second optical length from the splitter to the mixer of a portion of the modulated radiation that is scattered from the optical element into the mixer. A photodetector receives the mixed radiation from the mixer.

公开(公告)号：US11852852B2

公开(公告)日：2023-12-26

申请号：US17976801

申请日：2022-10-30

Applicant: Apple Inc.

Inventor： Ariel Lipson ,  Itai Afek ,  Jonathan Hauser ,  Roei Remez ,  Moshe Kriman ,  Zafrir Mor

IPC: G02B5/18 ,  G01S7/481 ,  G02B27/42 ,  G01S17/89

CPC classification number: G02B5/1814 ,  G01S7/4814 ,  G01S7/4817 ,  G02B27/42 ,  G01S17/89

Abstract: A method for optical sensing includes providing a mirror comprising a central reflective region surrounded by a peripheral glare-suppressing region. A beam of light from a laser light source is directed to reflect from the central region so as to pass through an output optic along an axis toward a target scene. The light returned from the target scene through the output optic is focused onto an optical sensor, via collection optics having a collection aperture surrounding the mirror.

公开(公告)号：US20230329549A1

公开(公告)日：2023-10-19

申请号：US18027400

申请日：2021-09-10

Applicant: Apple Inc.

Inventor： Eran Tal ,  Ariel Lipson

IPC: A61B3/12 ,  A61B3/113 ,  A61B3/00

CPC classification number: A61B3/12 ,  A61B3/113 ,  A61B3/005

Abstract: Some implementations disclosed herein provide systems, methods (200), and devices (10) that use a retinal imaging technique to assess a user's eye (45) accommodation (i.e., focus) during use of an electronic device (10), e.g., in real time. One or more light sources (322a-d, 1022a-d) produce one or more illuminated spots (320, 420, 520, 620) on the retina that are detectable via a sensor (324, 1024). The size and shape of the spot(s) (320, 420, 520, 620) depend upon the eye accommodation/focus and thus are used to identify an accommodation/focus change or measure the eye's accommodation/focus. Eye accommodation may be determined in real time while a user is viewing, interacting with, or otherwise experiencing electronic content via the electronic device.

公开(公告)号：US12073018B2

公开(公告)日：2024-08-27

申请号：US18026881

申请日：2021-09-10

Applicant: APPLE INC.

Inventor： Eran Tal ,  Ariel Lipson

IPC: G06F3/01 ,  G02B27/01 ,  G06F21/32

CPC classification number: G06F3/013 ,  G02B27/01 ,  G02B27/017 ,  G06F3/012 ,  G06F21/32 ,  G06T2207/30041

Abstract: Various implementations disclosed herein include devices, systems, and methods that provide retinal imaging-based gaze tracking In some implementations, a user's gaze is tracked based on a retinal imaging technique that selectively uses a subset of multiple light sources (222, 310, 610) that illuminate different portions of the user's retina (352). In some implementations, a method (700) includes selecting (710) a subset of light sources, where the subset of the light sources includes less than all of the light sources. In some implementations, one or more portions of a retina (352) are illuminated (720) by producing light using the subset of the light sources. In some implementations, sensor data is received (730) at a sensor (224, 340, 814), the sensor data corresponding to the light detected during retinal imaging, and an eye characteristic is determined (740) based on the sensor data.

公开(公告)号：US20230367117A1

公开(公告)日：2023-11-16

申请号：US18143213

申请日：2023-05-04

Applicant: Apple Inc.

Inventor： Itai Afek ,  Roei Remez ,  Ariel Lipson

IPC: G02B27/00 ,  G02B27/01

CPC classification number: G02B27/0093 ,  G02B27/0172 ,  G02B2027/0138

Abstract: Various implementations disclosed herein include devices, systems, and methods that capture images of an illuminated retina and perform eye tracking using the images. For example, a newly capture image may be compared with a previously-captured image or model of the retina to determine a three dimensional (3D) position or orientation of the eye, relative to the camera/tracking system. Diffuse light is directed towards the retina to produce reflections that are captured by the camera. The diffuse light is directed from positions that better aligned with the camera than prior retinal-imaging techniques. For example, at least some of the diffuse light may be directed towards the retina from one or more positions that are less than the camera lens' aperture radius distance from the camera lens' optical axis.