Patent ID: 8335295

Claim:
An image intensifier, comprising: a vacuum envelope having an input window, which is formed in a side thereof on which incident light is incident, and an output window, which is formed in a side thereof opposite to the input window; an input surface, which is provided on the input window side within the vacuum envelope, and is configured to emit an electron beam corresponding to the incident light; an output surface, which is provided on the output window side within the vacuum envelope, and is configured to convert the electron beam into a visible light image; a plurality of electrodes which form an electron lens on a path of the electron beam between the input surface and the output surface; a plurality of insulating members configured to insulate the plurality of electrodes; and a chromium oxide film, which is formed to continuously connect the plurality of electrodes and the insulating members located between those electrodes, the formed chromium oxide film configured to prevent an intermittent discharge phenomenon from occurring at an interface between at least the electrodes and the insulating members.