JPS60141054U - Image tube - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Figure 1 is a sectional view of an example of a conventional image pickup tube, Figure 2 is a sectional view of another example of a conventional image pickup tube, Figure 3 is an explanatory diagram of the potential distribution of the example in Figure 1, and Figure 4. is an explanatory diagram of the potential distribution of the example shown in Fig. 2, Fig. 5 is a sectional view showing an embodiment of the invention, Fig. 6 is a plan view of Fig. 5, and Fig. 7 is an illustration of the embodiment of the invention shown in Fig. 5. An explanatory diagram of potential distribution. 1: Face plate, 2a, 2b: Pin lead, 3: Indium,
4: Transparent electrode, 5: Photoconductive film, 6: Mesh ring, 7
: mesh, 8a double glass outer tube, 8b: intermediate glass ring, 9: equipotential surface, 10: trajectory of electron beam, 11: correction electrode.

Claims (1)

[Scope of utility model registration request] The target face plate and glass tube are hermetically sealed with indium.
In the imaging tube in which a voltage is applied to the mesh electrode through the indium, a ring-shaped electrode is provided on the vacuum side surface of the target face plate between the transparent electrode of the target and the indium, and the ring-shaped electrode An imaging tube characterized in that a voltage lower than a target voltage is applied to the image pickup tube.