FIELD: production of glass by laser treatment.
SUBSTANCE: method comprises adding the materials capable to generate the growth of the internal phase on structural defects being exposed to the laser radiation during founding glass, heat treatment of the blank until required color occurs at the illuminated points, and repeating the laser illumination and heat treatment to generate the other color at the other points of the blank.
EFFECT: enhanced quality of colored image.
7 cl, 5 ex
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