3D Color Laser Crystal Tech in China

3D color laser crystal is now has been developped in china, but the technology is not mature. the working process is that the laser is the nothing different or special, just the crystal material is different, the chemical ingredient inside the material is different than the normal crystal material.

After the design engraved inside, it is still white color, then it will be put in a special oven machanism, with differnt tempreture seting, the exploded design will change color as the ingredients inside the crystal material reacts with the tempreture changes.