Imaging device and camera system with photosensitive conversion element

摘要

An imaging device includes: a pixel array section functioning as a light receiving section which includes photoelectric conversion devices and in which a plurality of pixels, which output electric signals when photons are incident, are disposed in an array; a sensing circuit section in which a plurality of sensing circuits, which receive the electric signals from the pixels and perform binary determination regarding whether or not there is an incidence of photons on the pixels in a predetermined period, are arrayed; and a determination result integration circuit section having a function of integrating a plurality of determination results of the sensing circuits for the respective pixels or for each pixel group, wherein the determination result integration circuit section derives the amount of photon incidence on the light receiving section by performing photon counting for integrating the plurality of determination results in the plurality of pixels.

主权项

1. An imaging device comprising:
a pixel array section having a plurality of pixels, each pixel being configured to generate a charge in response to photons and to convert the charge to an electric signal; a sensing circuit section having a plurality of sensing circuits each configured to (i) receive electric signals from respective pixels, and (ii) perform binary determination regarding whether or not there is an incidence of photons on each of the respective pixels in a predetermined period; and a determination result integration circuit section coupled to the sensing circuit section and configured to (i) integrate a plurality of determination results generated by the plurality of sensing circuits, and (ii) perform photon counting for integrating the plurality of determination results in the plurality of pixels to derive an amount of photon incidence on the light receiving section, wherein
the determination result integration circuit section includes one counter circuit, the one counter circuit being shared by all of the plurality of sensing circuits, andthe one counter circuit is configured to perform count processing for integrating the plurality of determination results.