PURPOSE: To reduce the resistance of a photoelectric screen and improve its response by connecting a conductor mesh to a metallic electrode layer that supplies a photoelectron emission layer with current and providing the photoelectron emission layer in the mesh and then forming the photoelectric screen.
CONSTITUTION: An aluminum electrode 15 is provided on the upper part of a window material 5 at the light incidence side of a vacuum container 1 in a photomultiplier tube and such and an aluminum layer is deposited on a window surface. Then, a metallic mesh electrode 16 that forms meshes by photoetching is arranged. In addition, a photoelectric screen 14 is formed by depositing Sb on the metallic mesh electrode 16 by making Cs, K, and Na metal vapor react to Sb. As a result, since current is supplied from a conductive mesh near a photoelectron emission point to the point, the resistance of the photoelectric screen 14 can be reduced and the photoelectric screen can be applied to the generation of high optical current and high speed response.