A flowing crystal or glass, the internal presentation of a variety of beautiful patterns and motifs, however, the most amazing is that its overall structure has not been damaged because of the carving, all the patterns are presented in the internal. How is this realized?
As incredible as it may seem, it is actually thanks to the laser internal engraving technology. This is a very ornamental laser processing technology, in the processing process, with a beam of laser shuttling in the transparent material inside, the ingenious pattern is gradually generated, very suitable for artistic creation and scientific and technological display field.
So what is its principle? To understand this, we need to first figure out the principle of conventional laser engraving.
Engraving a material with a laser, is focused on the surface of the material through a beam of light, so that the material is subjected to heat melting or gasification, essentially relying on the thermal effect to achieve, which requires the local temperature to reach a certain threshold, can be achieved.
And we know that the laser emitted by the laser will have a fixed focal point. This focal point has the highest brightness and the highest temperature. Then, through clever power and pulse control, we can make the temperature of the laser at the focal point exceed the melting point of the glass, while the temperature along the focusing process does not exceed the melting point of the glass.
If we consider the whole glass as an ideal homogeneous material, then each of its locations should have the same melting point. This allows us to focus the laser on the inside of the glass to be processed. In this way, since the temperature in the path of the laser does not reach the melting point, but only the temperature at the focal point exceeds the melting point, it is possible to realize that only the glass at the focal point forms tiny damage spots or bubbles without affecting the path of the laser. Somewhat similar to focusing sunlight with a magnifying glass when you were a child, only by focusing on a piece of paper can you ignite it.
Next, through delicate software patterning, it is possible to control the focus trajectory so that these hazy damage points or bubbles are connected to form the desired three-dimensional pattern. Paired with brilliant LED lighting, it's time to show the perfect fusion of art and technology.
