See your GP if you have: 1  persistent or worrying symptoms that could be caused by haemochromatosis â particularly if you have a northern European family background. 2  a parent or sibling with haemochromatosis, even if you don't have symptoms yourself â tests can be done to check if you're at risk of developing problems.
The reflection of light can be roughly categorized into two types of reflection: specular reflection is defined as light reflected from a smooth surface at a definite angle, and diffuse reflection, which is produced by rough surfaces that tend to reflect light in all directions (as illustrated in Figure 1).
Diffuser; Diffusion; Diffusion Filter. A diffuser is used to scatter the light entering the camera or in the region of the shot. As the light is scattered it creates soft light where the shadows are muted without hard edges.Diffused or scattered light is the opposite of hard light with sharp edged shadows.he light hits a surface and the light is scattered, because of the surface characteristics, so that it is diffused. See main article: Definition: Diffuse Reflection. Softbox: The use of a softbox is mainly as a diffuser of light. They routinely have a large opening at the front which spreads the light.