The CO2 field mirror, also known as the 10.6 micron field mirror, is mainly used to gather the light from the galvanometer in a plane.
Pay attention to the scope of compliance. The larger the field lens, the greater the loss of laser energy, and the laser energy is attenuated greatly in the air.
The larger the focal length of the field lens, the thicker the lines and the shallower the marking on the material surface.
The main functions of the field mirror are:
(1) Improve the ability of the edge beam incident to the detector;
(2) In the same main optical system, the additional field lens will reduce the area of the detector. If the same detector area is used, the field of view can be enlarged and the incident flux can be increased;
(3) The modulation disc can be placed at the position of the image plane to solve the problem of nowhere to place the modulator;
(4) Homogenize the non-uniform illumination on the photosensitive surface of the detector;
(5) When a flat image field lens is used, a flat field image plane can be obtained;
(6) In terms of aberration correction, the field curvature and distortion of the system can be compensated.
CO2 laser marking machine adopts this field lens, which can mark and engrave non-metallic
1、Longevity: The mark after laser marking will not fade due to changes in time, environment and other factors.
2.、Good effect: The effect of laser marking has no burrs and flaws, and the marking effect is good.
3、Fine effect: The diameter of the spot of the fiber laser marking machine after laser focusing is small, and the marking effect is very fine.
4、Long service life: no other consumables are required, as long as the laser can work normally, it can achieve continuous processing for a long time.
