| 摘要 |
PROBLEM TO BE SOLVED: To secure visibility of an operation knob while making a mark visible by one light source in an operation panel provided with the operation knob and an operation display part to display the mark. SOLUTION: The operation panel 1 is provided with the operation knob 2 to operate a prescribed device 16 and the operation display part 3 which is arranged neighboring the operation knob 2 and which displays the mark 31 showing an operation content of the operation knob 2. The operation display part 3 is provided with a diffusion member 32 in which the mark 31 is formed and with a light source 33 arranged behind the diffusion member 32. The diffusion member 32 displays the mark 31 by being transmitted and illuminated by a part of the light emitted from the light source 33, diffuses the remaining part of this light and illuminates a side face of the operation knob 2 by this diffused light. By this, while the mark is made visible by one light source, the visibility of the operation knob can be secured. COPYRIGHT: (C)2007,JPO&INPIT
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