| 摘要 |
PROBLEM TO BE SOLVED: To provide a recessed part on the side of an LED bulb of an inner lens 21. SOLUTION: When the LED bulb 38 is lit, the recessed part 41 functions as a concave lens, and light is spread as shown by arrows 1. The light is made soft overall by this spread, and as the result, light is prevented from being too conspicuous at night. Consequently, the output of the LED bulb 38 is increased to make the indicator satisfactorily visible even in the daylight by adopting this example.
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