valokuvaaineiden
Valokuvaaineet, or photochromic materials, are substances that change their color or transparency in response to light. This phenomenon is known as photochromism. The most well-known example of a valokuvaaine is the photochromic lens, which is used in sunglasses to darken in bright light and become clear in dim light, providing UV protection and reducing eye strain.
The mechanism behind photochromism involves the presence of molecules with reversible structures. In the absence of
Valokuvaaineet have a wide range of applications beyond sunglasses. They are used in various optical devices,
The development of valokuvaaineet has been driven by the need for materials that can adapt to changing