| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighted push-button switch high in luminance without having luminance irregularity, and excellent in a push feeling. SOLUTION: In this lighted push-button device, a slope along an armoring shape is formed on a light emitting surface of a light guide, and a light emitting element is arranged at a position where light is refracted nearly in the same direction as that of the optical axis on the emitting surface. The slope at a predetermined angle with respect to the optical axis of a light source may be formed on the light entering surface of the light guide. This switch is arranged nearly just below the light guide. COPYRIGHT: (C)2007,JPO&INPIT
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