公开(公告)号：US10444111B2

公开(公告)日：2019-10-15

申请号：US16055181

申请日：2018-08-06

Applicant: Apple Inc.

Inventor： Brian S Medower ,  Meng Zhang

IPC: G01B9/00 ,  G01M11/02 ,  G01N21/88 ,  G02B5/18 ,  G02B6/124 ,  G01M11/00 ,  G01N21/958 ,  F21V8/00 ,  G01N21/95

Abstract: An optical apparatus includes a diffractive optical element (DOE), having at least one optical surface, a side surface, which is not parallel to the at least one optical surface of the DOE, and a grating, which is formed on the at least one optical surface so as to receive and diffract first radiation from a primary radiation source that is incident on the grating. The apparatus further includes at least one secondary radiation source, which is configured to direct second radiation to impinge on the side surface, causing at least part of the second radiation to propagate within the DOE while diffracting internally from the grating and to exit through the side surface. The apparatus also includes at least one radiation detector, which is positioned so as to receive and sense an intensity of the second radiation that has exited through the side surface.

公开(公告)号：US20180340859A1

公开(公告)日：2018-11-29

申请号：US16055181

申请日：2018-08-06

Applicant: Apple Inc.

Inventor： Brian S. Medower ,  Meng Zhang

IPC: G01M11/02 ,  G02B5/18 ,  G01N21/88 ,  G01M11/00 ,  G02B6/124 ,  F21V8/00

CPC classification number: G01M11/0207 ,  G01M11/33 ,  G01N21/8806 ,  G01N21/958 ,  G01N2021/9511 ,  G01N2201/061 ,  G02B5/18 ,  G02B6/0033 ,  G02B6/124 ,  G02B2005/1804

Abstract: An optical apparatus includes a diffractive optical element (DOE), having at least one optical surface, a side surface, which is not parallel to the at least one optical surface of the DOE, and a grating, which is formed on the at least one optical surface so as to receive and diffract first radiation from a primary radiation source that is incident on the grating. The apparatus further includes at least one secondary radiation source, which is configured to direct second radiation to impinge on the side surface, causing at least part of the second radiation to propagate within the DOE while diffracting internally from the grating and to exit through the side surface. The apparatus also includes at least one radiation detector, which is positioned so as to receive and sense an intensity of the second radiation that has exited through the side surface.

公开(公告)号：US10073004B2

公开(公告)日：2018-09-11

申请号：US15594607

申请日：2017-05-14

Applicant: Apple Inc.

Inventor： Brian S. Medower ,  Meng Zhang

IPC: G01J1/42 ,  G01M11/02 ,  G01N21/88 ,  G02B5/18 ,  G02B6/124

CPC classification number: G01M11/0207 ,  G01M11/33 ,  G01N21/8806 ,  G01N21/958 ,  G01N2021/9511 ,  G01N2201/061 ,  G02B5/18 ,  G02B6/0033 ,  G02B6/124 ,  G02B2005/1804

Abstract: An optical apparatus includes a diffractive optical element (DOE), having at least one optical surface, a side surface, which is not parallel to the at least one optical surface of the DOE, and a grating, which is formed on the at least one optical surface so as to receive and diffract first radiation that is incident on the grating. The apparatus further includes at least one secondary radiation source, which is configured to direct second radiation to impinge on the side surface, causing at least part of the second radiation to propagate within the DOE while diffracting internally from the grating and to exit through the side surface. The apparatus also includes at least one radiation detector, which is positioned so as to receive and sense an intensity of the second radiation that has exited through the side surface.

公开(公告)号：US20230184939A1

公开(公告)日：2023-06-15

申请号：US17549917

申请日：2021-12-14

Applicant: Apple Inc.

Inventor： Yazan Z. Alnahhas ,  Eamon H. O'Connor ,  Jianmin Gong ,  Matthew C. Waldon ,  Mauro O. Magnaghi ,  Meng Zhang ,  Prabhakar Gulgunje ,  Wei Lin ,  Yohai Zmora

IPC: G01S17/10 ,  G01S7/4865 ,  G02B6/02

CPC classification number: G01S17/10 ,  G01S7/4865 ,  G02B6/02033

Abstract: A proximity sensor includes a light source configured to emit a beam of optical radiation and a detector configured to output an electrical signal in response to the optical radiation that is incident on the detector. A first optical multimode fiber is configured to receive the emitted beam and to direct the emitted beam toward an object. A second optical multimode fiber is configured to receive the optical radiation reflected from the object and to convey the received optical radiation to the detector. A processor is coupled to process the electrical signal so as to compute a distance to the object.

公开(公告)号：US20180084241A1

公开(公告)日：2018-03-22

申请号：US15597166

申请日：2017-05-17

Applicant: APPLE INC.

Inventor： Denis G. Chen ,  Meng Zhang

IPC: H04N13/02 ,  G02B27/42 ,  G02B27/10 ,  G02B27/30 ,  G02B27/64 ,  G02B26/08 ,  G02B26/10

CPC classification number: H04N13/271 ,  G02B26/0875 ,  G02B26/10 ,  G02B27/106 ,  G02B27/1086 ,  G02B27/30 ,  G02B27/4233 ,  G02B27/646 ,  H04N13/218 ,  H04N13/254

Abstract: A method for projection includes projecting a pattern toward a target by directing optical radiation, which is collimated along an optical axis by projection optics, through a diffractive optical element (DOE). An optical signal that is indicative of a shift of the projected pattern is detected. An actuator is driven to translate the projection lens in a direction transverse to the optical axis responsively to the detected optical signal.

公开(公告)号：US20180080851A1

公开(公告)日：2018-03-22

申请号：US15594607

申请日：2017-05-14

Applicant: Apple Inc.

Inventor： Brian S. Medower ,  Meng Zhang

IPC: G01M11/02 ,  G01N21/88 ,  G02B5/18 ,  G02B6/124

CPC classification number: G01M11/0207 ,  G01N21/8806 ,  G01N2201/061 ,  G02B5/18 ,  G02B6/0033 ,  G02B6/124 ,  G02B2005/1804

Abstract: An optical apparatus includes a diffractive optical element (DOE), having at least one optical surface, a side surface, which is not parallel to the at least one optical surface of the DOE, and a grating, which is formed on the at least one optical surface so as to receive and diffract first radiation that is incident on the grating. The apparatus further includes at least one secondary radiation source, which is configured to direct second radiation to impinge on the side surface, causing at least part of the second radiation to propagate within the DOE while diffracting internally from the grating and to exit through the side surface. The apparatus also includes at least one radiation detector, which is positioned so as to receive and sense an intensity of the second radiation that has exited through the side surface.

公开(公告)号：US10362295B2

公开(公告)日：2019-07-23

申请号：US15597166

申请日：2017-05-17

Applicant: APPLE INC.

Inventor： Denis G. Chen ,  Meng Zhang

IPC: G02B26/08 ,  G02B26/10 ,  G02B27/10 ,  G02B27/30 ,  G02B27/42 ,  G02B27/64 ,  H04N13/218 ,  H04N13/254 ,  H04N13/271

Abstract: A method for projection includes projecting a pattern toward a target by directing optical radiation, which is collimated along an optical axis by projection optics, through a diffractive optical element (DOE). An optical signal that is indicative of a shift of the projected pattern is detected. An actuator is driven to translate the projection lens in a direction transverse to the optical axis responsively to the detected optical signal.