| 摘要 |
PURPOSE:To make it possible to convert the brightness responding to the ambient brightness and to convert the display color by providing a light leading body which has a color different from the color of a light leading body linking to a movable body, between a power source and the light leading body, or between the light leading body and the movable body, and moreover, arranging a built-in circuit to convert the brightness in two phases or more. CONSTITUTION:In an ordinary condition, a voltage is applied to a terminal 15a and the current flows through a diode D a transistor T a resistance R2, and a lamp 14 is lighted. In this case, when a small light inside a car is turned ON at night, for example, the voltage is to be applied from a terminal 15c, the current flows through a resistance R1 the transistor T, and the route from the terminal 15a to the diode D the transistor T is blocked at the transistor T. As a result, in this case, the current flows through a resistance R3 and the lamp 14 is lighted. Since the resistance value of the resistance R3 is larger than that of the resistance R2, the brightness of the lamp is lowered. In case the switch is OFF, since there are light leading bodies 3 and 4 between the lamp and a display plate 2, the display color is either the compound color or the color of one side. When the switch is ON, only the light leading body 3 is operated and the color is that of the light leading body 3.
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