How to adjust the beam expander of laser marking equipment

When you use laser marking equipment, you must not only understand its use, but also need to understand the method of adjustment, such as adjusting the beam expander, and whether the adjustment is correct or not will directly affect the use of the laser marking equipment. Today, I will give you a detailed introduction on how to adjust the beam expander of the laser marking equipment.

When adjusting the beam expander of the laser marking equipment, the incident light should be at the center of the beam expander’s light entrance hole, and the emitted light should be at the center of the light exit hole. If the adjustment is not good, there will be a lot of The problem is that the power of the laser is reduced, which can not play a good beam expansion effect, the laser intensity of the marking area is not uniform, or the software center is away from the middle of the exit line of the vibrating lens.

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If the beam expander of the laser marking equipment is left a lot and cannot be adjusted accurately, you can operate according to the following method:

  • 1. Adjust the three screws on the back of the laser marking equipment to let the laser go out from the center of the front of the lens barrel.
  • 2. Adjust the three screws on the front to keep the reflected light and red light at the same heart. When this condition is met, the light spot composed of several concentric circles can be seen more clearly, irradiated on the grating of the laser, and it is still concentric, the grating is white. Because the emitted light spot is very weak, this operation needs to be performed in a darker environment.
  • 3. If the beam expander of the laser marking equipment does not move much, while ensuring that the red light is straight and one axis, first check whether the red light enters and comes out of the beam expander. When, is it also the center position of the beam expander?

When you adjust the beam expander of the laser marking equipment, you can refer to the above method to do it. If the fine-tuning of the beam expander is not uniform, you need to record the number of rotations, and then adjust in the opposite direction after fine-tuning, so as to achieve the desired effect.

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