Double pointers in the same axis
Original Publication Date: 2004-May-25
Included in the Prior Art Database: 2004-May-25
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In the instrument panel, up to now one pointer is used to indicate one value. For example, one pointer is used to indicate the cruising speed of the automobile. The axis of this pointer is not used for a second pointer. It is proposed to implement two pointers indicating different values in one and the same axis. This can be achieved accordingly to the implementations shown in Fig. 1. Both pointers, here one for cruising speed and one for fuel gage, use the same axis regardless each pointer is driven by its own stepping motor. Fig. 2 shows a side view with the LEDs visible. These LEDs illuminate both the pointers and the dial. The light from the LEDs enters the pointer and fulfills it. The pointer again emits enough of this light so that it can be recognized by the driver. In this manner long pointers can be illuminated as well.