| 摘要 |
A meter driving apparatus is provided in which the display luminance of a plurality of placed meters can be adjusted in synchronization to enhance the appearance of the whole additional meter system. The driving apparatus is for a plurality of meters 2 and 3. The meters include the first meter (digital meter) 2 including an optical sensor 2d for detecting the surrounding brightness and having an auto-light-adjustment function of obtaining light-adjustment data for adjusting the display luminance of the meter 2 in accordance with the detection result of the optical sensor 2d and the second meter (analog data) 3 having no optical sensor. The driving apparatus has a control unit 1 which transmits the light-adjustment data obtained by the first meter 2 to the second meter. The second meter 3 adjusts the display luminance thereof based on the light-adjustment data received from the control unit 1.
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