| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise sound in an audible frequency band recognized by human ears around a cathode-ray tube device when dynamic focus voltage is applied. SOLUTION: In a neck part 3 of a funnel 2, an electron gun 4 of a dynamic focus type is provided to which focus voltage changed dynamically corresponding to deflection is applied, and an antenna getter 5 is held at a tip of the electron gun. The antenna getter 5 is provided with a getter container 51, a pole 52 for supporting the getter of which one end is fixed to the tip of the electron gun and other end is connected to the getter container, and a supporting wire 53 fixed to the getter container. The getter container is crimped by elastic force of the pole for supporting the getter at one point on the inner face of the funnel via the supporting wire. COPYRIGHT: (C)2006,JPO&NCIPI
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