Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also...http://www.google.es/patents/US6197218?utm_source=gb-gplus-sharePatente US6197218 - Photoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Photoluminescent phosphor powders, methods for making phosphor powders and ...
