| 摘要 |
An optical mouse having a light-sheltering device is used on an operating surface. The optical mouse includes a housing, a circuit board, a sensor and light source device, an IR control device, and a sheltering element. The circuit board is installed in the housing. The sensor and light source device is also installed on the circuit board. The IR control device is electrically connected with the circuit board. The sheltering element is movably installed in the housing for sheltering the light signal of the IR control device when the housing is off of the operating surface. Via a smart design, the mouse closes the light beam of the sensor and light source device to prevent the user's eyes from being injured and the cursor from moving.
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