When purchasing equipment, many manufacturers engaged in laser marking processing will ask: Does this laser marking machine have red light adjustment function? What is the role of this "red light regulation"?
1.Adjust the optical path of the resonator
The working principle of the resonator is based on the interference of multiple beams in the cavity, and one of the basic conditions for the interference is the coincidence of the beams in space, which requires us to control the direction of the beams very accurately to couple into the resonator, that is, optical-cavity coupling. For example, semiconductor laser marking machine.
2.Location
Only by setting the marking position can the processing and production be carried out efficiently. As the indicator light for marking positioning of laser marking machine, according to different marking software, it can be divided into marking focus indication, marking pattern 9 point indication, marking pattern long and wide range indication, marking pattern overall simulation indication and other indication methods.
3.Focusing
The red light can also be used as the focus of the laser marking machine, that is, the indication of the marking distance (this is the phenomenon that sometimes the red light does not appear, and sometimes the red light appears, but only the red light is flickering, but the light cannot be produced). The distance between the two red light points is exactly the distance of the marking airport mirror, so it is not necessary to measure the marking distance with a steel ruler every time the product is replaced, which reduces the operation steps and improves the marking speed.
One thing to pay special attention to: it requires operators to have a certain understanding of the equipment to turn on the red light adjustment of the laser marking machine. For example, generally the red light adjustment is set on the marking software. Press F1 to turn it on. If you only find that the galvanometer is moving and no red light comes out, first check whether the mechanical switch to control the red light is not turned on. Check whether the power supply of the red light is turned on. Use a multimeter to measure whether there is 5V voltage between the two red and black lines of the red light indicator. If it is 5V voltage and there is no laser output, That means the red light indicator needs to be replaced.
