| 摘要 |
The present invention discloses a method for the production of laser-induced images inside transparent material, when complete image information is lacking before production and is supplemented only during production. The method enables to transform both the displayed image represented by incomplete data, and the new image parts added during production into aggregate of laser-induced damages (etch points) so as the high quality laser-induced image can be produced. In particular, the method teaches: how to detach the image parts, about which we do not have information, so as the new parts can be produced within a transparent material after the production of the rest parts without internal split of the material; how to build a contour of the new image part to the corresponding detachment line; how to eliminate of the objectionable visual effect connected with the increase of laser-induced damages density of the detachment area; how to smooth of gray shades along the borders between new image parts and the adjacent areas of the whole images by special aggregate of laser-induced damages; how to agree the new image layers with the layers of the whole image.
|
