| 摘要 |
The present invention is a sweeping or reciprocating laser scanning device. The reciprocation or sweeping motion is cam driven. As the cam rotates, a lever arm is reciprocated or oscillated between two positions, which causes the laser or beam of light to move linearly, thus creating a triangular plane of light resulting in a reciprocating linear reference across the hypotenuse of the triangular plane of light.
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