| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an indicator using electromagnetic induction action, capable of simplifying a structure and suppressing costs. <P>SOLUTION: An indicator 1 comprises: a drive unit 20 arranged on the rear side of a display member 10; an indication member 30 having an indication unit 32 and mounted on the rotation shaft 21 of the drive unit 20; a light source 40 allowing the indication unit 32 to emit light and arranged in the indication member 30; a primary coil 50 provided on the side of the drive unit 20; a secondary coil 60 allowing electromagnetic induction with the primary coil 50 and provided on the side of the indication member 30; drive means 81 for outputting a drive signal 811 supplying electric power to the primary coil 50; control means 82 for outputting a control signal 821 for light adjustment of the light source 40; and brightness adjustment means 83 for outputting a signal 831 superimposed on the driving signal 811 and the light adjusting control signal 821 to the primary coil 50. <P>COPYRIGHT: (C)2013,JPO&INPIT |
