Focus Head

A laser is generally delivered to a workstation by means of a flexible fiber optic cable or fixed mirrors. Typically, the laser is delivered to the work piece at a low power density which requires focusing to enable materials processing. The focus is the tool which takes the "raw" laser beam and focuses to a small diameter typically less than 0.04" down to 0.0005".

A number of different types of focusing heads are available for Nd:YAG and fiber lasers; selection will be based on the application, space and budget.

A great benefit of using Nd:YAG and fiber lasers is that  an in-line camera can be mounted to the focus head, providing a view of the weld area.   This enables the operator to view the weld, provide a means for using vision systems and can confirm that the laser is in focus on the part.

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