Signet Armorlite, Inc., an optical company owned by Essilor, recently celebrated its 60th anniversary since incorporation. The headquarters, U.S. distribution center and lens technology center, Signetek, are located in San Marcos, California. Glass lenses and molds are designed and produced at Crossbows Optical, a wholly owned subsidiary located in Northern Ireland. European product distribution is achieved through two distribution centers and four optical laboratories located in England, Germany, Spain, and the Netherlands. Signet Armorlite holds worldwide distribution for KODAK Lenses and is an Authorized Distributor for 3M Optical Supplies in the United States.