Numerical UV Control for Accurate Measurements of Fluorescent Materials
Accurate measurement of materials such as paper or cloth treated with optical brighteners (OBA) requires precise control of the UV component. The patented Numerical UV Control method (familiar to customers who used the CM-3600A) provides UV control by using proprietary calculations to combine the results from flashes of two xenon lamps: one with full UV energy, the other with UV energy removed by a UV-cutoff filter (either 400 nm or 420 nm). This method eliminates the need for lengthy filter position adjustment processes, and enables UV adjustment by Whiteness Index, Tint, Brightness, or UV profile.