Laser radium engraving is also called laser marking. Laser engraving, laser engraving, is a surface treatment process, similar to screen printing, is printed on products or patterns, and the process is different, the price is different. It's a surface treatment process based on optical principle. The keys of mobile phones and electronic dictionaries are used a lot. The products I've done before are useful. In a nutshell, it's like this:
For example, I want to make a laser laser laser for car audio case. It has characters on it, such as blue, green, red and gray, the key body is white, laser radium carving, first spray oil, blue, green, scarlet and gray, each spray the corresponding color, pay attention not to spray on other keys, so it looks like there are blue keys, green keys and other keys, and then spray a whole layer of white, so it is a whole piece. White keyboard, blue and green are wrapped below. At this time, laser engraving can be carried out, using laser technology and image processing, laser marking on the white oil, such as processing letters "A", engraving off the white strokes, then the next or blue or green will be exposed, thus forming a variety of color letter keys.
At the same time, if you want to be transparent, use PC or PMMA, spray a layer of oil, carve out the font part, then the light below will come out, but at this time to consider the adhesion of various oils, do not spray on the scratch off.
Because the color keys need to be sprayed with different oils, we should take this into account when making the structure. The keys should be separated so as not to spray to unnecessary places, and there are also places where the loss is greater than doing more.