Laser oscillator is a kind of scanning oscillator used in the laser industry, and its professional term is Galvo scanning system. or -10V-+10V DC signal is replaced by a computer-controlled signal, in order to complete the reserved action.
Like the rotating mirror scanning system, this typical control system uses a pair of folding mirrors, but the difference is that the stepper motor driving this set of lenses is replaced by a servo motor, in this control system, the use of orientation sensors and negative feedback loop planning ideas to further ensure the accuracy of the system, the scanning speed and repeat positioning accuracy of the whole system to a new level.
Whether the scanning laser system is used for marking, engraving, or micro-catheter drilling, they all rely on the vibration mirror to accurately position the laser beam. We use reflector-grade silicon substrates to produce galvanometer-type mirrors that meet specifications. We apply accurate thin-film coatings to these substrates to create highly efficient galvanometer mirrors that reflect laser light in the wavelength range of 1.0 to 12.0 µm.
Oscilloscope scanning composition principle.
Oscillating mirror scanning marking head is mainly composed of XY scanning mirror, field mirror, oscillating mirror and computer-controlled marking software. According to the different wavelengths of the laser to choose the corresponding optical components. The relevant options also include laser beam expander, laser, etc. The operating principle is to incident the laser beam to the two mirrors (scanning mirror), computer control of the mirror reflection point of view, the two mirrors can be scanned along the X, Y axis, and then reach the laser beam deflection, so that a certain power density of the laser aggregation point in the marking material according to the Look at more info required movement, and then leave a lasting symbol on the surface of the material, the aggregated spot can be round or rectangular, the principle of As shown in the figure on the right. In the vibrating mirror scanning system, it can choose vector graphics and text, this approach uses the processing of graphics software in the computer for graphics, with high efficiency in making graphics, good accuracy of graphics, no distortion, etc., which greatly improves the quality and speed of laser marking. Together with the vibrating mirror marking can also choose the dot matrix marking method, the choice of this method is very suitable for online marking, according to the different speed of the production line can choose a scanning vibrating mirror or two scanning vibrating mirror, compared with the array marking described earlier, can symbolize more dot matrix information, on the symbol of Chinese characters have greater advantages. Oscilloscope scanning marking because of its wide range of use, vector marking and dot matrix marking, adjustable symbol scale, and has a fast response time, high marking speed (hundreds of characters per second), high marking quality, good sealing performance of the optical path, strong adaptability to the environment and other advantages have become mainstream products, and is thought to represent the future direction of development of laser marking, with a broad range of prospects for use.