METHOD FOR CREATING IMAGES

摘要

The present invention relates to laser techniques for processing solid materials and more precisely to a technique for creating images within the volume of a transparent article so as to obtain various colour effects. The conventional methods for forming three-dimensional images within a volume include the following steps: focusing a laser beam at a given point in the volume of the transparent model; radiating said model at a power density exceeding the threshold value of the volumetric breakdown of the model material; and displacing said model relative to the laser beam according to predetermined commands. The method of the present invention is characterised relative to traditional ones in that it can be used for forming three-dimensional colour images within the volume. This method for forming three-dimensional images within a volume comprises radiating each point of the image to be formed within the transparent model using focused laser beam, wherein said beam is emitted at a power density exceeding the threshold value of the optical and volumetric breakdown of the material. However, unlike the prototype, the transparent model consists of a porous material in which one substance at least is introduced, wherein the physical and chemical properties of said substance change irreversibly in the volume of the transparent model under the action of the optical and volumetric breakdown factors.