To realize a wireless imaging apparatus having excellent sensitivity to an
environmental change, a wireless imaging device has an imaging unit with
a function of imaging a subject and a communication unit with a wireless
communication function. The imaging unit has, at least, an optical lens,
an aperture 2 to limit incident light from the optical lens, an optical
sensor 4 to convert the incident light passed through the aperture 2 into
an electric signal, and an antenna for wireless communication, integrally
formed with the aperture.