公开(公告)号：US20190181169A1

公开(公告)日：2019-06-13

申请号：US16219847

申请日：2018-12-13

Applicant: Magic Leap, Inc.

Inventor： Erez Tadmor ,  David Cohen ,  Giora Yahan

IPC: H01L27/146 ,  H04N5/3745 ,  H04N5/235

Abstract: A pixel cell for differential light sensing includes a plurality of photodiodes and a corresponding plurality of storage diodes. Each storage diode is disposed between a first adjacent photodiode and a second adjacent photodiode, and each storage diode is configured to receive photo charges from either or both of the first adjacent photodiode and the second adjacent photodiode. Each photodiode is disposed between a first adjacent storage diode and a second adjacent storage diode, and each photodiode is configured to transfer photo charges to either or both of the first adjacent storage diode and the second adjacent storage diode.

公开(公告)号：US11587245B2

公开(公告)日：2023-02-21

申请号：US16936345

申请日：2020-07-22

Applicant: Magic Leap, Inc.

Inventor： David Cohen ,  Assaf Pellman ,  Shai Mazor ,  Erez Tadmor ,  Giora Yahav

IPC: G01S7/497 ,  G01S7/481 ,  G01S17/89 ,  G01S7/483 ,  G01S17/08 ,  G06T7/521 ,  G01S17/894

Abstract: A method for determining a distance to a target object includes transmitting light pulses to illuminate the target object and sensing, in a first region of a light-sensitive pixel array, light provided from an optical feedback device that receives a portion of the transmitted light pulses. The feedback optical device includes a preset reference depth. The method includes calibrating time-of-flight (TOF) depth measurement reference information based on the sensed light in the first region of the pixel array. The method further includes sensing, in a second region of the light-sensitive pixel array, light reflected from the target object from the transmitted light pulses. The distance of the target object is determined based on the sensed reflected light and the calibrated TOF measurement reference information.

公开(公告)号：US10762651B2

公开(公告)日：2020-09-01

申请号：US15721640

申请日：2017-09-29

Applicant: Magic Leap, Inc.

Inventor： David Cohen ,  Assaf Pellman ,  Shai Mazor ,  Erez Tadmor ,  Giora Yahav

IPC: G06T7/521 ,  G01S17/89 ,  G01S7/497 ,  G01S7/481 ,  G01S7/483 ,  G01S17/08

Abstract: A method for determining a distance to a target object includes transmitting light pulses to illuminate the target object and sensing, in a first region of a light-sensitive pixel array, light provided from an optical feedback device that receives a portion of the transmitted light pulses. The feedback optical device includes a preset reference depth. The method includes calibrating time-of-flight (TOF) depth measurement reference information based on the sensed light in the first region of the pixel array. The method further includes sensing, in a second region of the light-sensitive pixel array, light reflected from the target object from the transmitted light pulses. The distance of the target object is determined based on the sensed reflected light and the calibrated TOF measurement reference information.

公开(公告)号：US20200244857A1

公开(公告)日：2020-07-30

申请号：US16846027

申请日：2020-04-10

Applicant: Magic Leap, Inc.

Inventor： Asaf Pellman ,  Erez Tadmor ,  David Cohen ,  Giora Yahav

IPC: H04N5/238 ,  H04N13/254 ,  H04N5/232 ,  G01S7/481 ,  G02B27/00 ,  H04N5/347 ,  H04N5/343 ,  H04N5/235 ,  H04N5/225 ,  G02B27/14 ,  G02B27/10 ,  G02B13/14 ,  G02B5/20 ,  G01S17/89 ,  G01S17/42 ,  G01S7/4865 ,  G06T7/521

Abstract: An imaging lens includes one or more lens elements configured to receive and focus light in a first wavelength range reflected off of one or more first objects onto an image plane, and to receive and focus light in a second wavelength range reflected off of one or more second objects onto the image plane. The imaging lens further includes an aperture stop and a filter positioned at the aperture stop. The filter includes a central region and an outer region surrounding the central region. The central region of the filter is characterized by a first transmission band in the first wavelength range and a second transmission band in the second wavelength range. The outer region of the filter is characterized by a third transmission band in the first wavelength range and substantially low transmittance values in the second wavelength range.

公开(公告)号：US10659701B2

公开(公告)日：2020-05-19

申请号：US15803351

申请日：2017-11-03

Applicant: Magic Leap, Inc.

Inventor： Asaf Pellman ,  Erez Tadmor ,  David Cohen ,  Giora Yahav

IPC: H04N7/18 ,  H04N5/238 ,  G02B27/00 ,  G01S7/481 ,  H04N5/232 ,  H04N13/254 ,  G06T7/521 ,  G01S7/4865 ,  G01S17/42 ,  G01S17/89 ,  G02B5/20 ,  G02B13/14 ,  G02B27/10 ,  G02B27/14 ,  H04N5/225 ,  H04N5/235 ,  H04N5/343 ,  H04N5/347 ,  G02B1/11 ,  G02B27/30 ,  H04N5/378

Abstract: An imaging lens includes one or more lens elements configured to receive and focus light in a first wavelength range reflected off of one or more first objects onto an image plane, and to receive and focus light in a second wavelength range reflected off of one or more second objects onto the image plane. The imaging lens further includes an aperture stop and a filter positioned at the aperture stop. The filter includes a central region and an outer region surrounding the central region. The central region of the filter is characterized by a first transmission band in the first wavelength range and a second transmission band in the second wavelength range. The outer region of the filter is characterized by a third transmission band in the first wavelength range and substantially low transmittance values in the second wavelength range.