TITIK REFLEKSI DAN RAMUAN TRADISIONAL APK

Peningkatan Versi

Reflection diffusion (en: diffused reflection) is the change in direction of propagation of light waves that occur after mashing uneven granular interface with the scattering of light back toward the side (medium) it came with a lot of reflection angle. Reflection diffusion is a function of the complement of the specular reflection, was first introduced by Johann Heinrich Lambert through Photometria in 1760. The results of an observational study on light intensity Lambert reflection on dull interface (en: matte), then called the law of cosines Lambert at Lambert reflectance and interfaces Lambert.

Examples of the difference between the diffusion reflection with specular reflection can be found on the paint colors dull and shiny. Cat dull metampakkan diffusion reflection properties, while the gloss paint accentuate the specular reflection properties. Many of the objects invisible to the eye can be seen because of the nature of this diffusion reflection. Scattering of light from the surface of the object that becomes the primary mechanism of physical observation of humans [1] [2] and photometry.

Isotropic reflectance properties of the interface causes the reflection diffusion tends to metampakkan interface with the same luminance level seen from any viewing angle. For example, a rough wooden board clearly illustrates the reflectance of the interface isotropic Lambert, but if it had been plated shiny with polyurethane, the reflectance disappear with the onset of specular highlights on some parts of the interface. Specular highlights can also be seen in Lambert imperfect interface, ie the angle formed by the laws of reflection of light rays at maximum intensity.
The working principle of the retro reflector

Chain diffusion reflection on some of the interface is called inter-reflection Lambert diffusion (en: diffuse interreflection). Ray diffuse inter-reflection is elastic and coloring Lambert interface adjacent objects by color before Lambert interface. This phenomenon in the study of photography is called ambient light, can be observed clearly in the room does not get direct sunlight. Ray specular reflection chain does not exhibit the same symptoms. For example, the retro reflector (en: retroreflector) cat eye's retina, as daylight will look glowing when observed from a certain angle, and looks dark when observed from another angle. Incident rays striking the retina of the eye cats interface experience specular reflection chain does not occur until the light diffusion inside the hollow eyes of a cat. Therefore, we can not see the ambient light in the eye socket.