| 摘要 |
PURPOSE:To simplify the construction of a photoelectric tube and widen the range of directionality in sensitivity, by providing photoelectron emission layers on the surfaces of a pair of rodlike electrodes on the stem of a hermetic container to integrate the electrodes with connection pins and make it less likely for the electrodes to shadow each other. CONSTITUTION:A pair of rodlike electrodes 1, 2 are provided on the stem of a cylindrical transparent hermetic container 3 so that the electrodes extend in parallel with each other inside and outside the container. Electron emission layers are provided on the surfaces of the electrodes 1, 2 inside the container 3. The electrodes 1, 2 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 widen the range of directionality in sensitivity.
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