High Quality Content by WIKIPEDIA articles! The Optical Society (originally established as the Optical Society of America, OSA) is a scientific society dedicated to advancing the study of light—optics and photonics—in theory and application, by means of publishing, organizing conferences and exhibitions, partnership with industry, and education. The organization has members in more than 100 countries. As of 2011, OSA had 16,000 individual members and more than 230 corporate member companies.