Patent ID: 7274836

Claim:
An optical module using a linear sensor for identifying images comprising: a circuit board comprising a slot; a linear sensor installed on the circuit board; a light source set installed on the circuit board; and an optical element comprising: a first plane; a second plane paralleling the first plane, wherein a distance between the second plane and the circuit board is shorter than a distance between the first plane and the circuit board; a first total reflection plane between the first plane and the second plane, for totally reflecting light provided by the light source set; a second total reflection plane between the first plane and the second plane, for totally reflecting reflected light of the first total reflection plane to the linear sensor; a first lens installed on the second plane and corresponding to the light source set, for focusing lights of the light source set on the first total reflection plane; a second lens installed on the second plane and corresponding to the linear sensor, for focusing lights totally reflected by the second total reflection plane on the linear sensor; and a headed stub for wedging into the slot of the circuit board.