The Optical Society was a scientific society founded in London in 1899, which published Transactions of the Optical Society.
The Optical Society was founded on 26 October 1899. The first president was W.H.E. Thornthwaite.[1] The founders included Charles Algernon Parsons and Frank Twyman. Its meetings were mostly held at Imperial College London.
In 1932 it merged with the Physical Society of London,[2] becoming the Optical Group of the Physical Society, and later the Optical Group of the Institute of Physics. The Optical Group is a member of the European Optical Society.[1]