An imaging device comprising: 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, wherein the photon counting is executed by forming a plurality of three-dimensional meshes in the light receiving section consisting of a two-dimensional light receiving surface divided at equal distances as a spatial component and a one-dimensional time axis divided at equal distances as a temporal component, wherein each mesh has two values of logic 1 and logic 0, wherein each of the sensing circuits determines whether or not one or more photons have been incident on each mesh and determines 1 when there is an incidence regardless of the number of incident photons and determines 0 when there is no incidence, and wherein the determination result integration circuit section counts a sum of 1 of each sensing circuit. 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, wherein the photon counting is executed by forming a plurality of three-dimensional meshes in the light receiving section consisting of a two-dimensional light receiving surface divided at equal distances as a spatial component and a one-dimensional time axis divided at equal distances as a temporal component, wherein each mesh has two values of logic 1 and logic 0, wherein each of the sensing circuits determines whether or not one or more photons have been incident on each mesh and determines 1 when there is an incidence regardless of the number of incident photons and determines 0 when there is no incidence, and wherein the determination result integration circuit section counts a sum of 1 of each sensing circuit.