The linear optical axis as a piston rod requires certain premises.

As a piston rod, the linear optical axis needs certain prerequisites, such as its surface quality, length, performance and so on, to meet the corresponding standards. tiebar
In order to meet these requirements, the surface of the linear optical axis should be treated to obtain good cleanliness. At the same time, pay attention to the quality of the lubricating oil used, if the quality is too poor, it will lead to carbon deposition on the top of the linear optical axis. In the aspect of length, neither too long nor too short, the length of the linear optical axis should be based on the radial external force of the piston rod.
In addition, since the piston rod is reciprocating movement, so must have super high wear resistance, so as to achieve good results. If this aspect of the linear optical axis can meet the requirements, it can be used as a mechanical piston rod to play a role.