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  2. Diffuse reflection - Wikipedia

    en.wikipedia.org/wiki/Diffuse_reflection

    A piece of highly polished white marble remains white; no amount of polishing will turn it into a mirror. Polishing produces some specular reflection, but the remaining light continues to be diffusely reflected. The most general mechanism by which a surface gives diffuse reflection does not involve exactly the surface: most of the light is ...

  3. Gloss (optics) - Wikipedia

    en.wikipedia.org/wiki/Gloss_(optics)

    Gloss reflection. Gloss is an optical property which indicates how well a surface reflects light in a specular (mirror-like) direction. It is one of the important parameters that are used to describe the visual appearance of an object.

  4. Transparency and translucency - Wikipedia

    en.wikipedia.org/wiki/Transparency_and_translucency

    Diffuse reflection - Generally, when light strikes the surface of a (non-metallic and non-glassy) solid material, it bounces off in all directions due to multiple reflections by the microscopic irregularities inside the material (e.g., the grain boundaries of a polycrystalline material or the cell or fiber boundaries of an organic material ...

  5. List of refractive indices - Wikipedia

    en.wikipedia.org/wiki/List_of_refractive_indices

    Refraction, critical angle and total internal reflection of light at the interface between two media. List. Some representative refractive indices; Name of material

  6. Retroreflector - Wikipedia

    en.wikipedia.org/wiki/Retroreflector

    A set of three mutually perpendicular reflective surfaces, placed to form the internal corner of a cube, work as a retroreflector. The three corresponding normal vectors of the corner's sides form a basis (x, y, z) in which to represent the direction of an arbitrary incoming ray, [a, b, c].

  7. Lambertian reflectance - Wikipedia

    en.wikipedia.org/wiki/Lambertian_reflectance

    Diagram of Lambertian diffuse reflection. The black arrow shows incident radiance, and the red arrows show the reflected radiant intensity in each direction. When viewed from various angles, the reflected radiant intensity and the apparent area of the surface both vary with the cosine of the viewing angle, so the reflected radiance (intensity per unit area) is the same from all viewing angles.