| 摘要 |
An illumination device includes a light incident face onto which light is incident, a light guide plate that has a light emitting face that is disposed adjacent to the light incident face and intersects the light incident face, an illumination light source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, a position detecting beam source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, and a wiring substrate that extends along the light incident face and has both the illumination light source and the position detecting beam source mounted thereon.
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