Miniature-spectroscopy company !%Ocean Optics%! of Dunedin, Fla., has expanded its three-year warranty beyond its spectrometers to include light sources and other accessories. Effective July 1, light sources and sampling accessories purchased from the company and its authorized distributors also will be covered for three years against manufacturing defects, regardless of application. In addition, optical fibers and probes will be covered for 12 months.