What laser is used for crystal engraving?

Laser crystal carving technology is currently the most advanced and popular glass carving processing method internationally. It combines precision laser carving with transparent crystal materials to create lifelike three-dimensional images and textures, as well as impressive optical effects.

The principle of crystal engraving is similar to that of laser engraving glass. Its energy density must be greater than a certain critical value, also known as a threshold, that can damage the glass. The energy density of the laser at a certain point is related to the size of its spot. For the same laser beam, the smaller the spot, the greater the energy density produced. In this way, by focusing appropriately, the energy density of the laser can be lower than the glass's damage threshold before entering the glass and reaching the processing area, and exceed this critical value in the desired processing area. The laser generates pulses in an extremely short time, and its energy can instantly cause the water crystal to heat and rupture, resulting in extremely small white spots. The predetermined shape is carved inside the glass, while the rest of the glass or crystal remains intact and undamaged.

It can be said that laser crystal carving technology showcases the perfect combination of modern art and technology. It gives artists and designers a new level of creative freedom.

In the field of crystal carving using lasers, ultraviolet lasers have significant advantages, making them one of the preferred internal carving techniques. The main reasons are as follows:

High precision and detail: The laser beam generated by the ultraviolet laser is very detailed, with highly precise control, which can achieve fine carving and details, which is very important for creating complex patterns and images inside the crystal.

High energy density: The laser beam of the ultraviolet laser has a high energy density, which can remove the material inside the crystal in a short time, making the engraving process more efficient.

Widely applicable: UV lasers are suitable for various types of crystals, including crystals with different hardness and colors. This increases its versatility and flexibility.

Multi level carving: By controlling the focal position and intensity of the laser beam, multiple patterns of different depths and levels can be created inside the crystal block, achieving a three-dimensional effect.