Light Laboratory, Inc. was established in 1974, founded by Bill F. Jones.
Bill F. Jones 1959
Proposed the system of "cavities" to describe a room for lighting calculations. It becomes the "zonal cavity" system adopted by the IES.
LD+A Issue on January 2006 'Commemorative issue CELEBRATING IES 100 YEARS'.
Bill Jones was featured in an article "THE PIONEERS"
One of 91 individuals who helped shaped the industry.