| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that in a conventional slip ring, an analog image signal 8 and a digital control signal 9 are collectively transmitted through a contact transmission means 7, so that the analog image signal 8 and the digital control signal 9 interfere with each other, and the quality of the analog image signal is degraded. Ž<P>SOLUTION: In the slip ring, a contact transmission means 7 is formed with a ring part 7a and a wiper part 7b. A first non-contact transmission means 15 is formed with a first light reception part 15a and a first light emission part 15b, and a second non-contact transmission means 20 is formed with a second light reception part 20a and a second light emission part 20b. An analog image signal 8 is transmitted through the contact transmission means 7, and digital control signals 9a, 9b are transmitted through the first and second non-contact transmission means 15, 20. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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