公开(公告)号：US20170208265A1

公开(公告)日：2017-07-20

申请号：US14997159

申请日：2016-01-15

Applicant: Sensors Unlimited, Inc.

Inventor： Minlong Lin ,  Joshua Lund ,  Patrick Kuschak

IPC: H04N5/357 ,  H04N5/3745 ,  H04N5/378

CPC classification number: G01J9/00 ,  G02B26/06

Abstract: A wavefront sensing pixel is provided. The wavefront sensing pixel includes a low-pass filter filtering a charge signal from a photodetector and outputting a control signal when low-frequency signals are detected in the charge signal, and a control device to control flow of the charge signal past the control device based on whether a low-frequency signal is detected in the charge signal. The wavefront sensing pixel further includes a low-frequency signal path that receives a flow of signals that flow past the control device, and a high-frequency signal path independent of the low-pass filter and the control device, the high-frequency signal path receiving high-frequency signals included in the charge signal.

公开(公告)号：US09686490B2

公开(公告)日：2017-06-20

申请号：US14242597

申请日：2014-04-01

Applicant: Sensors Unlimited, Inc.

Inventor： Joshua Lund ,  Patrick Kuschak ,  Minlong Lin ,  Robert Brubaker

IPC: H04N5/359 ,  H04N5/3745 ,  H04N5/355 ,  H04N5/374

CPC classification number: H04N5/359 ,  H04N5/35527 ,  H04N5/3559 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/37452

Abstract: A pixel cell includes a first integration capacitor, a second integration capacitor, a photo detector and a transistor. The first integration capacitor includes a first lead operatively coupled to the photo detector. The second integration capacitor includes a first lead. The transistor is operatively coupled between the leads of the first and second integration capacitors for enabling current flow between the photo detector and the second integration capacitor only once a threshold voltage is met on the first integration capacitor.

公开(公告)号：US09939324B2

公开(公告)日：2018-04-10

申请号：US14997159

申请日：2016-01-15

Applicant: Sensors Unlimited, Inc.

Inventor： Minlong Lin ,  Joshua Lund ,  Patrick Kuschak

IPC: H04N3/14 ,  H04N5/335 ,  G01J9/00

CPC classification number: G01J9/00 ,  G02B26/06

Abstract: A wavefront sensing pixel is provided. The wavefront sensing pixel includes a low-pass filter filtering a charge signal from a photodetector and outputting a control signal when low-frequency signals are detected in the charge signal, and a control device to control flow of the charge signal past the control device based on whether a low-frequency signal is detected in the charge signal. The wavefront sensing pixel further includes a low-frequency signal path that receives a flow of signals that flow past the control device, and a high-frequency signal path independent of the low-pass filter and the control device, the high-frequency signal path receiving high-frequency signals included in the charge signal.

公开(公告)号：US20150281612A1

公开(公告)日：2015-10-01

申请号：US14242597

申请日：2014-04-01

Applicant: Sensors Unlimited, Inc.

Inventor： Joshua Lund ,  Patrick Kuschak ,  Minlong Lin ,  Robert Brubaker

IPC: H04N5/378 ,  H01L27/146

CPC classification number: H04N5/359 ,  H04N5/35527 ,  H04N5/3559 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/37452

Abstract: A pixel cell includes a first integration capacitor, a second integration capacitor, a photo detector and a transistor. The first integration capacitor includes a first lead operatively coupled to the photo detector. The second integration capacitor includes a first lead. The transistor is operatively coupled between the leads of the first and second integration capacitors for enabling current flow between the photo detector and the second integration capacitor only once a threshold voltage is met on the first integration capacitor.

Abstract translation: 像素单元包括第一积分电容器，第二积分电容器，光电检测器和晶体管。 第一积分电容器包括可操作地耦合到光电检测器的第一引线。 第二积分电容器包括第一引线。 晶体管可操作地耦合在第一和第二积分电容器的引线之间，用于仅在第一积分电容器上满足阈值电压时，才使电流在光电检测器和第二积分电容器之间流动。