Preferred Label : heliochromism;
IUPAC definition : Applied to photochromic compounds possessing a high efficiency for colouring with
near-ultraviolet radiation and a low efficiency for bleaching with visible radiation,
but a moderate efficiency for thermal fading at ambient temperature. These compounds
are activated by unfiltered sunlight and deactivated under diffuse daylight conditions,
therefore being suitable for sun-lens applications.;
Origin ID : HT07392;
See also
Applied to photochromic compounds possessing a high efficiency for colouring with
near-ultraviolet radiation and a low efficiency for bleaching with visible radiation,
but a moderate efficiency for thermal fading at ambient temperature. These compounds
are activated by unfiltered sunlight and deactivated under diffuse daylight conditions,
therefore being suitable for sun-lens applications.
