The Light Bar Focus works with sensors (light barriers) installed laterally in the enclosure. If the autofocus is enabled on the keyboard of the laser system, the processing table will move up. As soon as the material that you insert beforehand has passed the light barriers, the upward movement of the table will stop. Focusing is then complete and you can start the laser process.
The Light Bar Focus is ideal for flat opaque materials where the material thickness is unknown.