| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect the pressing input accurately, in a transparent switch utilizing the light transmission by an optical contact. SOLUTION: At the crossing point of a linear light leading layer 211 directing in the X direction, and a linear light leading layer 231 directing in the Y direction square to the X direction, an L shaped light leading member 221 extending in the (-X) direction and the (-Y) direction is provided. When a pressing input P is received in this case, the light leading layer 211 and the light leading member 221 are bent, and the light leading layer 211, the light leading member 221, and the light leading layer 231 are contacted in this order. When a light L transmitting in the X direction is led in to the light leading layer 211 in such a condition, a part of the light L is transmitted to the light leading member 211, and its transmitting direction is converted to a light La transmitting in the (-Y) direction, and furthermore it is transmitted to the light leading layer 231. Consequently, the light is led to the light leading layer 231 efficiently, and the detection of the pressing input P by detecting the light transmitting inside the light leading layer 231 can be carried out accurately.</p> |
