Patent ID: 8477118

Claim:
An input apparatus, comprising: a main body, comprising a light source and an optical sensor disposed therein or thereon, wherein the light source is suitable to emit a light beam, and the optical sensor has a sensible distance; and an optical reflection panel module, disposed on the main body, the optical reflection panel module comprising an optical reflection component, a first stress component, and a second stress component, wherein a side of the first stress component and a side of the second stress component are connected respectively to the two sides of the optical reflection component, accordingly, the optical reflection component is adapted to move in three-dimensional space, wherein, the optical sensor and the optical reflection component are arranged along an arrangement direction, when the optical reflection component is pressed to enter within the sensible distance of the optical sensor and moves along a direction perpendicular to the arrangement direction, the optical reflection component reflects the light beam onto the optical sensor, so that the optical sensor senses a movement of the optical reflection component to the input apparatus along a direction perpendicular to the arrangement direction, when the optical reflection component is not pressed, the stress generated from the first stress component and the second stress component rebounds the optical reflection component back to outside of the sensible distance, so that the optical sensor is unable to sense a movement of the optical reflection component relative to the input apparatus along the direction perpendicular to the arrangement direction.