Abstract 1. A LASERABLE ARTICLE CONSISTING ESSENTIALLY OF TRANSPARENT, SUBSTANTIALLY SCATTER-FREE GLASS CERAMIC AS HOST MATERIAL CONTAINING ACTIVATING AGENT RENDERING THE ARTICLE CAPABLE OF INDUCED EMISSION AND LUMINESCENCE, OF THE FOLLOWING COMPOSITION ON THE OXIDE BASIS: WEIGHT PERCENT SIO2---------------------------------------45-68 AI2O3--------------------------------------15-30 P2O5----------------------------------------0-10 LI2O-----------------------------------------2-6 MGO------------------------------------------0-3 ZNO------------------------------------------0-8 ZRO2-----------------------------------------2-7 TA2O5----------------------------------------1-7 LA2O3---------------------------------------3-12 ACTIVATING AGENT --------------------------0.1-5 THE ACTIVATING AGENT BEING AT LEAST ONE OF MNO AND RARE EARTH OXIDE SELECTED FROM EU2O3, SM2O3, TB2O3 AND ND2O3, THE ARTICLE BEING AT LEAST 25% CRYSTALLINE BY WEIGHT OF WHICH THE PRINCIPAL CRYSTALLINE PHASE HAS A HIGH QUARTZ STRUCTURE, AND THE ARTICLE HAVING A LINEAR COEFFICIENT OF THERMAL EXPENSION OF NOT MORE THAN 15.10**7*C. MEASURED OVER 20-300*C.
A LASERABLE ARTICLE CONSISTING ESSENTIALLY OF TRANSPARENT, SUBSTANTIALLY SCATTER-FREE GLASS CERAMIC AS HOST MATERIAL CONTAINING ACTIVATING AGENT RENDERING THE ARTICLE CAPABLE OF INDUCED EMISSION AND LUMINESCENCE, OF THE FOLLOWING COMPOSITION ON THE OXIDE BASIS: WEIGHT PERCENT SIO2---------------------------------------45-68 AI2O3--------------------------------------15-30 P2O5----------------------------------------0-10 LI2O-----------------------------------------2-6 MGO------------------------------------------0-3 ZNO------------------------------------------0-8 ZRO2-----------------------------------------2-7 TA2O5----------------------------------------1-7 LA2O3---------------------------------------3-12 ACTIVATING AGENT --------------------------0.1-5 THE ACTIVATING AGENT BEING AT LEAST ONE OF MNO AND RARE EARTH OXIDE SELECTED FROM EU2O3, SM2O3, TB2O3 AND ND2O3, THE ARTICLE BEING AT LEAST 25% CRYSTALLINE BY WEIGHT OF WHICH THE PRINCIPAL CRYSTALLINE PHASE HAS A HIGH QUARTZ STRUCTURE, AND THE ARTICLE HAVING A LINEAR COEFFICIENT OF THERMAL EXPENSION OF NOT MORE THAN 15.10**7*C. MEASURED OVER 20-300*C.
Claim 2
Dependent Claim
106 words
A LASERABLE ARTICLE CONSISTING ESSENTIALLY OF TRANSPARENT, SUBSTANTIALLY SCATTER-FREE GLASS CERAMIC AS HOST MATERIAL CONTAINING ACTIVATING AGENT RENDERING THE ARTICLE CAPABLE OF INDUCED EMISSION AND LUMINESCENCE, OF THE FOLLOWING COMPOSITION ON THE OXIDE BASIS: WEIGHT PERCENT SIO2---------------------------------------45-68 AI2O3--------------------------------------15-30 P2O5----------------------------------------0-10 LI2O-----------------------------------------2-6 MGO------------------------------------------0-3 ZNO------------------------------------------0-8 ZRO2-----------------------------------------2-7 TA2O5----------------------------------------1-7 LA2O3---------------------------------------3-12 ACTIVATING AGENT --------------------------0.1-5 THE ACTIVATING AGENT BEING AT LEAST ONE OF MNO AND RARE EARTH OXIDE SELECTED FROM EU2O3, SM2O3, TB2O3 AND ND2O3, THE ARTICLE BEING AT LEAST 25% CRYSTALLINE BY WEIGHT OF WHICH THE PRINCIPAL CRYSTALLINE PHASE HAS A HIGH QUARTZ STRUCTURE, AND THE ARTICLE HAVING A LINEAR COEFFICIENT OF THERMAL EXPENSION OF NOT MORE THAN 15.10**7*C. MEASURED OVER 20-300*C.