Colorimetric study of Transitions~(~R) Look lenses

摘要

Spectral transmittances of three new photochromatic lenses have been measured at different activation states produced by the four luminous sources of a Veri Vide CAC 120 cabinet. The greatest transmittance changes were found for the UV and D65 sources. These transmittances changes lead to average CELAB color differences lower than 6 CIELAB units for the 24 chips of a GretagMacbeth color chart.