公开(公告)号：US20190289237A1

公开(公告)日：2019-09-19

申请号：US16357102

申请日：2019-03-18

Applicant: Teledyne DALSA B.V.

Inventor： Daniel Wilhelmus Elisabeth Verbugt ,  Willem-Hendrik Maes

IPC: H04N5/378 ,  H04N5/355 ,  H04N5/3745 ,  H01L27/146

Abstract: The present invention relates to an image sensor and to an imaging system comprising such a sensor. According to the invention, the overall conversion curve describing the conversion between photon flux and digital number comprises a first region in which the conversion is essentially linear and a second region in which the conversion is essentially non-linear.According to the invention, the non-linearity of the second region is obtained by operating the photodiode of the image sensor in its non-linear range and by changing the gain associated with the conversion between pixel voltage and digital number.

公开(公告)号：US11012655B2

公开(公告)日：2021-05-18

申请号：US16357102

申请日：2019-03-18

Applicant: Teledyne DALSA B.V.

Inventor： Daniel Wilhelmus Elisabeth Verbugt ,  Willem-Hendrik Maes

IPC: H04N5/378 ,  H01L27/146 ,  H04N5/355 ,  H04N5/3745

Abstract: The present invention relates to an image sensor and to an imaging system comprising such a sensor. According to the invention, the overall conversion curve describing the conversion between photon flux and digital number comprises a first region in which the conversion is essentially linear and a second region in which the conversion is essentially non-linear.
According to the invention, the non-linearity of the second region is obtained by operating the photodiode of the image sensor in its non-linear range and by changing the gain associated with the conversion between pixel voltage and digital number.