How to adjust the focus of laser marking machine correctly
Anyone who has used a laser marking machine or has been in contact with a laser marking machine knows that when this equipment is used, it will involve the problem of correct adjustment of the focal plane. Equipment manufacturers will emphasize the importance of focal length during equipment installation training and sample adjustment. Laser laser engraving on the correct focal length is a key factor for the equipment to perform its performance normally. Many direct users of equipment are concerned about how to correctly debug laser marking equipment. The confusion and misunderstanding of the focal length. Today, this article summarizes some conventional laser marking machine focal length adjustment methods.
First of all, before understanding the correct debugging method, we are now here to popularize and understand the correct definition of focal length:
Focal length, also known as focal length, is a measure of the concentration or divergence of light in an optical system. It refers to the distance from the center of the lens to the focal point of the light. In the laser marking equipment, after the laser is reshaped by the laser, it will be irradiated with a parallel beam to the focusing field lens. Conventional laser marking equipment mostly uses a convex lens. The convex lens is optically refracted to focus the parallel light beam to a focal point. Form the focal plane. The vertical distance from the optical center of the convex lens to the focal plane is what we call the focal length. We generally use F= to represent its focal length. Most of the laser equipment matching the focusing field lens will have a mark on it. For example: F=163; F=254 and so on. The focusing field lens is a very important optical accessory in laser marking equipment. As shown in the figure above, the parallel light generated by the laser will only be gathered together after the condensation and organization of the focusing lens, and exert its decisive power.
