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The beam expander is an important optical component in laser marking equipment. It is a lens assembly that can change the diameter and divergence of the laser beam. In fact, it is two lenses with different focal lengths. So, do you know what role the beam expander can play in the laser marking machine?

Function 1: Reduce the divergence angle of the laser beam;

Function 2: Expand the diameter of the laser beam.

The divergence angle of an expanded beam can be focused smaller than an unexpanded beam. The use of a beam expander with a spatial filter can change the asymmetric beam distribution to a symmetrical distribution, and make the light energy distribution more uniform.

The product of the laser beam waist radius and the divergence angle is a fixed value. Compared with the unexpanded beam, the divergence angle of an expanded beam can be focused smaller. The use of a beam expander with a spatial filter can change the asymmetric beam distribution to a symmetrical distribution, and make the light energy distribution more uniform.

In response to market needs, Foshan Fulan Laser continues to introduce a series of laser marking machines with more stable performance, faster marking speed, better marking quality, wider application range, and more powerful functions. The core component of the equipment is made by Fu The blue laser design team independently develops and produces, and the main components can be professionally customized according to customer needs. With automation, multi-axis and multi-station, CCD visual positioning, automatic focusing and other technologies, it integrates the rich blue laser technology precipitation for many years to provide customers Advanced, more stable and more efficient solutions can reduce production costs to the greatest extent and improve production efficiency.