The laser scanner is also called the Laser Galvanometer, which consists of an X-y optical scanning head, an electronic drive amplifier and an optical reflective lens.
The signal provided by the computer controller drives the optical scanning head by driving the amplifying circuit, thereby controlling the deflection of the laser beam in the X-y plane. In the laser demonstration system, the waveform of optical scanning is a kind of vector scanning, the scanning speed of the system determines the stability of laser graphics.
In recent years, people have developed high-speed scanners, scanning speed of 45,000 dots/sec, so can demonstrate complex laser animation. Scanning principle: The scanning pattern is the two-dimensional effect pattern, so the scanning motor with x, y two motor control, a moment to determine the location of a point, through the scanning frequency control of the location of the point at different points to achieve the transformation of the entire scan pattern, scanning frequency (speed) the lower the pattern flashing more obvious, can use the principle of the film to understand.
