fényátengedése

Fényáteresztés, commonly referred to as transparency, is a physical property of a material that allows light to pass through it. This phenomenon is dependent on the interaction between light waves and the atomic or molecular structure of the substance. Materials exhibiting high transparency, such as glass or clear water, have structures that allow photons to travel through with minimal scattering or absorption. Conversely, opaque materials block light entirely due to absorption or significant scattering.

The degree of light transmission can vary. Some materials are perfectly transparent, allowing light to pass through without distortion. Others are translucent, permitting light to pass but scattering it in the process, leading to a blurred or diffused image. The wavelength of light also plays a role; a material might be transparent to visible light but opaque to ultraviolet or infrared radiation.

In scientific contexts, the study of fényáteresztés is crucial in fields like optics, material science, and physics. It influences the design of lenses, windows, optical fibers, and protective coverings for electronic devices. Understanding how light interacts with different media allows for the manipulation of light for various technological applications. The measurement of light transmission is often quantified by transmittance, a ratio of the light intensity transmitted through a sample to the incident light intensity.