Imaging apparatus

An imaging apparatus comprising an electron emission source array with a plurality of electron emission sources arranged on a plane perpendicular to an optical axis, and a translucent substrate having an optoelectronic film opposed on the optical axis to the electron emission source array with a space therebetween so that the imaging apparatus emits electrons to the optoelectronic film by dot sequential scanning across the electron emission sources for output as an electrical signal associated with an optical image which has been projected onto the optoelectronic film by the incidence of light through the translucent substrate,

• the imaging apparatus further comprising a first magnet portion for forming in the space a magnetic field in a direction orthogonal to each principal plane of the translucent substrate and the electron emission source array, wherein
• the first magnet portion includes a plurality of magnets which are disposed in parallel to the optical axis in a manner such that respective magnetic poles thereof are arranged in a forward direction in parallel to the optical axis and are not in contact with each other, and
• the imaging apparatus further comprising a second magnet portion, the second magnet portion being a disc-shaped second permanent magnet which is disposed on the optical axis opposite to the light incident side with a space from the electron emission source array and opposed to the electron emission source array so that a symmetric axis is coaxial with the optical axis, and the second permanent magnet having an opening which is coaxial with the optical axis.