Terminology
Reflective objects
- Reflectance Factor, R
- Gloss Reflectance Factor, Rs
- Gloss (at least six types of gloss may be observed depending upon the character of the surface and the spatial (directional) distribution of the reflected light.)
- Specular Gloss
- Distinctness of image Gloss
- Sheen
- Reflection Haze, H (for a specified specular angle), the ratio of (light) flux reflected at a specified angle (or angles) from the specular direction to the flux similarly reflected at the specular angle by a specified gloss standard.
Transmissive objects
- Transmittance, T
- Haze (turbidity)
- Clarity
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