Patent ID: 9621776
Date: 2017-04-11
CPC Classifications: A61B,H04N

Claim:
1. An imaging element comprising: a plurality of pixels arranged in a two-dimensional matrix form, configured to receive light from outside, and configured to generate and output an imaging signal depending on an amount of the light received; a first transfer line connected to the pixels and configured to transfer the imaging signal; a second transfer line to which the imaging signal transferred by the first transfer line is output; a column selection switch configured to select one pixel column among the two-dimensional matrix, and output the imaging signal transferred by the first transfer line to the second transfer line; a column source follower including a gate to which the imaging signal transferred by the first transfer line is input, a drain end being connected to a power supply voltage, and a source end being connected to the column selection switch; a constant current source configured to drive the column source follower and read out the imaging signal transferred by the first transfer line to the second transfer line; and a current generating unit configured to flow a predetermined current to the source end side of the column source follower to absorb, by the column selection switch, an influence of noise caused by a leakage current.