| 摘要 |
PURPOSE:To uniform the sensitivity of a photoelectric tube in all directions, by providing photoelectron emission layers on the surfaces of a pair of rodlike electrodes extending in parallel with each other outside a hermetic container and bent inside it not to shadow each other. CONSTITUTION:Rodlike electrodes 1, 2 are secured to the stem of a cylindrical hermetic container 3 to extend in parallel with each other outside the container and bent inside it so that the electrodes first spread from each other along planes symmetric to each other as to the axis of the container and then turn across each other. Photoelectron emission layers are provided on the surfaces of the electrodes 1, 2 inside the container 3. The electrodes are thus integrated with connection pins to simplify the construction of a photoelectric tube and make it less likely for the electrodes to shadow each other to uniform the sensitivity of the tube in all directions.
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