photochromism

Example:The photochromic compounds change their color upon exposure to sunlight.

Definition:Substances that undergo photochromic transitions under light exposure.

Example:Transition sunglasses with photochromic lenses adjust their tint depending on the light conditions.

Definition:Special lenses that darken in sunlight and lighten again in the dark due to photochromism.

Example:photochromic materials are used in photochromic-dial watches.

Definition:Materials that change their properties, such as color, when exposed to light.

Example:Photochromic dyes are used in anti-counterfeiting inks.

Definition:Dyes that change color when illuminated with light.