Fényreflektálás
Fényreflektálás, also known as light reflection, is a fundamental phenomenon in optics where light waves bounce off a surface. When light encounters a boundary between two different media, such as air and a mirror, a portion of that light is redirected back into the original medium. This redirection follows specific laws. The law of reflection states that the angle of incidence, the angle between the incoming light ray and the normal (an imaginary line perpendicular to the surface), is equal to the angle of reflection, the angle between the reflected light ray and the normal. Furthermore, the incident ray, the reflected ray, and the normal all lie in the same plane. The nature of the reflected light depends on the properties of the surface. A smooth, polished surface, like a mirror, produces specular reflection, where parallel incident rays are reflected as parallel rays, creating a clear image. Rough surfaces, on the other hand, cause diffuse reflection, where incident rays are scattered in many directions, making it difficult to see a distinct image. This scattering is why we can see most non-shiny objects, as light reflects off their irregular surfaces in all directions towards our eyes. Fényreflektálás is crucial for vision, enabling us to perceive the world around us, and it has numerous applications in technology, from telescopes and periscopes to solar panels and optical fibers.