Visual Haze
NEW Visual Haze measurement is more sensitive and more consistent with human perception because it accounts for illumination conditions and background paint colour.
Visual haze is calculated considering the luminosity of the background colour and the luminosity of the near specular reflection (Haze). Two values are provided to account Haze visibility in two different viewing conditions, indoor viewing compared to outdoor viewing in strong sunlight.
Visual Haze VH Indoor Vhin and Visual Haze Outdoor Vhout
Haze effects are amplified in strong sunlight- swirls whirls and holograms which are not visible in indoor conditions are prominent when illuminated by a high intensity light-source.
Conditions | Surface illumination | Specular Illumination | |
|---|---|---|---|
VHin | Standard indoor lighting | 0.5k Lux | 25k cd/m2 |
VHout | Sunny day- clear sky | 100k Lux | 1.6m cd/m2 |
Haze | Surface | Description/Perception |
|---|---|---|
<50 Hu (Indoor or outdoor) | High Quality Surface | Almost perfect surface- haze not visible under normal viewing conditions. |
50-100 | Ultra Low Haze Surface | Good depth of finish- Barely visible halo around reflected light sources. |
100-250 | Visible Haze | Depth of finish is compromised- swirls and polishing marks are visible |
250-300 | Hazy Surface | Poor quality finish |
300-500 | Poor Quality Surface | Prominent halos, holograms or polish marks. Poor depth of finish |