Patent ID: 6765352
Filing Date: 2004-07-20
Classification: H01J

Abstract:
A photocathode comprising:a faceplate having a light incident surface on which light is incident, and a light transmissive surface for transmitting the incident light; a photocathode plate in contact with the light transmissive surface of the faceplate for emitting electrons from an electron emitting surface disposed on the opposite side of the surface contact with the light transmissive surface in response to incident light; at least one first pin embedded in the faceplate the first pin extending between the light incident surface of the faceplate and a portion of the light transmissive surface that does not contact the photocathode plate; and a support plate joined to the first pin on the light transmissive surface, the support plate contacting an outer edge of the electron emitting surface of the photocathode plate to fix the photocathode plate to the faceplate.