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A geophysicist whose career took him from the Army to high tech companies and academia, Carl Accardo was only in his early 20s when he published pioneering research about the solid state phenomenon of electroluminescence, which is used in the bulbs of energy efficient LEDs, or light-emitting diode lighting.
At the beginning of the 1960s, he moved to Greater Boston to work for Geophysics Corporation of America and Epsilon Laboratories, both Bedford-based research and development companies.
Then he began working with MIT’s Industrial Liaison Program. He created a network of research exchanges between MIT and Japanese companies that prompted the Japanese government to award him the Order of the Sacred Treasure, Gold Rays with Rosette, in 2002.
Mr. Accardo, 85, of Winchester, died March 22.