Nanosecond UV laser marking red light adjustment function

Many manufacturers engaged in laser marking processing will ask when purchasing equipment: Does this machine have a red light adjustment function? What exactly does this "red light adjustment" do? To this end, this editor specifically asked the technical staff for advice, sorted out several important roles, and shared them with everyone.

1. Adjust the optical path of the resonant cavity

The working principle of the resonant cavity is based on the interference of multiple beams in the cavity, and a basic condition for interference is the coincidence of the beams in space, which requires us to very accurately control the direction of the beam to couple into the resonant cavity, that is, light-cavity coupling. For example, semiconductor laser marking machine.

2. Positioning

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, it can be divided into marking focus indication, 9-point indication of marking pattern, indication of length and width range of marking pattern, and overall marking pattern according to different marking software. Various indication methods such as analog indication.

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3. Focusing red light can also be used as the focus point of the laser marking machine, which is an indication of the marking distance

(This is the phenomenon that sometimes the red light does not display, and sometimes the red light appears again, but only the red light is flickering and dimming, but the light is not displayed). The overlapping distance of the two red spots is exactly the distance of this laser marking airport mirror. In this way, there is no need to use a steel ruler to measure the marking distance every time the product is changed, which reduces the operation steps and improves The marking speed is increased.