1 Average within the visible range of the light spectrum Notes: • The standard material used is PMMA (refractive index = 1.49; relative dispersion = 58). Other materials are available. • The mentioned thickness value is our standard thickness. Other thicknesses (> 0.8 mm) are possible. • Outside diameter / size may be up to 5 - 20 mm beyond clear aperture. Other dimensions or special trimmings can be realized upon request. • Special designs possible on request. • All specification are subject to change without prior notice. FOG_16; Rev. 8; ©2013 ORAFOL Fresnel Optics GmbH Engineered to Manage Light ™ ORAFOL Fresnel Optics GmbH Flurstedter Marktweg 13 • 99510 Apolda • Germany Tel.: +49 3644 5011 0 • Fax: +49 3644 501150 E-Mail: [email protected] • www.fresnel-optics.de Fresnel Optics