Abstract

A number of photoluminescent materials have been found to have properties that make them extremely useful for improving the quality of laser displays as well as offering simplifications for multicolor systems. The principal function of these materials is that of color conversion when coated onto a laser illuminated viewing screen. A secondary, yet significant, role is that of rendering the converted light incoherent. This eliminates the unpleasant granular or speckly texture associated with direct viewing of diffusely scattered coherent light. It is concluded that virtually any visible color may be achieved by photoluminescent conversion of a monochromatic blue or ultraviolet laser beam.

© 1971 Optical Society of America

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