| 摘要 |
PROBLEM TO BE SOLVED: To enhance an illuminative property of a translucent resin keytop in the case a base sheet of an illuminated keypad is close to an illumination light source as if the sheet almost touches the source, and the resin keytop is located at a wide angle relative to the light source in the plane direction of the base sheet. SOLUTION: For the illuminated keypad 1 provided with the translucent resin keytop 4 on the surface of the base sheet 5 made of a translucent rubber-like elastic body, the keytop 4 illuminates by the light emission of the illumination light source 6 facing the rear face of the base sheet, a striped face 10 having a plurality of heaped stripes 10a is formed in a floodlight area 11 of the illumination light source on the surface of the base sheet. As a result, the light of the light source 6 transmitting through the thickness of the translucent base sheet 5 is turned back to the inside of the base sheet 5 by reflection at the heaped stripes 10a of the striped face 10, which can enhance the illuminative property of the resin keytop. COPYRIGHT: (C)2005,JPO&NCIPI
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