| 摘要 |
<p>PHN 8947 A cathode-ray tube having a getter disposed in contact with a layer provided in the cone of the tube. In order to avoid the problems of (a) having to protect the getter material when the getter is mounted in the cone early in the manufacture of the tube, (b) the getter, which is attached by a resilient metal strip to the electron gun assembly, shorting-out, in the event of a flashover, a resistive layer provided in the neck of the tube, and (c) the resilient metal strip impeding accurate positioning of the electron gun assembly, the getter is mounted by way of a resilient metal strip attached to a resilient clamping member clamped in the neck between the electron-gun assembly and the neck-cone transition and in contact with the internal resistive layer. The cathoderay tubes may be used for any desired purpose, particularly in colour television receivers.</p> |
