O.K.Messen, the Salzburg-based organizer of the successful Opti Munich fair in Germany, is launching a similar event in Switzerland with the support of SLVA, the Swiss Association of Optics and Eyewear Suppliers which was organizing the previous Swissoptic fair. Called Opti Zurich, the new trade show will first take place on Sept. 9 and 10 next year, and it will be open also to non-Swiss companies that may wish to enter the market. For its part, the Opti Munich fair is renting an additional hall for its next Jan. 12-14 to accomodate new exhibitors, including German majors such as Carl Zeiss, Eschenbach, Menrad, Metzler and Rupp+Hubrach.