| 摘要 |
PROBLEM TO BE SOLVED: To enhance the visibility of a switch for improving the operability. SOLUTION: A button 14 on a push-type switch SW1 takes the form of a funnel to be supported by an attachment boss 121 on a base such that it is movable up and down, and has a light transmitter 214 in the shape of a concave lens at its constricted part. With such an arrangement, a light of the LED lamp 2 is refracted on a curved surface of the light transmitter 214, and a light with the beam diameter enlarged is irradiated over a wide range, resulting in the entire button 14 being illuminated brightly. COPYRIGHT: (C)2008,JPO&INPIT
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