LIGHT TRANSMITTANCE VS. WAVELENGTH

Spectrophotometric Curves for Plexiglas^® Sheet
Figure 2 depicts spectrophotometric curves in the visible band of the electromagnetic spectrum for clear, gray and bronze colors of Plexiglas^® sheet.

Note the relative flatness of the neutral gray densities, which allows indoor color fidelity. The somewhat higher transmittance values in the red band for the bronze densities give a warmer color tone to colored objects viewed in daylight transmitted through these densities. The darker grays and bronzes absorb a significant part of the UV spectrum.