Television camera-tube.

摘要

A television camera-tube comprising in an evacuated envelope (1) an electron gun (4) for generating at least one electron beam which is focused onto a target (3) and which is deflected over the said target, a grid electrode (7) having hexagonal apertures being provided in front of said target

The apertures in the grid electrode (7) are arranged in a honeycomb structure, which apertures have the form of an equilateral hexagon having angles of 120°, and as a result the susceptibility to Moiré effects is reduced, the microphonic properties are improved and the mesh obtained as a high transmissivity while it can more readily be tensioned and is easier to handle.