HomeMatic IP HmIP-RGBW Notice D'installation Et D'emploi page 33

Start-up
5.4.1 Colour Representation using the HSV Colour Space
Using the HSV colour space, the starting colour is defined by use of an
RGB(W) stripe. It is made up of the three terms Hue (H), Saturation (S) and
Value (V). Hue H is defined as a circle (0—360°) in the course of which all
colours occur. Saturation S specifies the intensity of the colour, where the
starting colour increasingly moves towards white as the number reduces.
Value V specifies the total brightness of the defined starting colour.
5.4.2 HCL (Human Centric Lighting)
Human Centric Lighting (HCL) describes the adaptation of the lighting in
line with the natural course of daylight: in the morning, a warm colour
temperature (reddish light) dominates, whereas over the course of the
day towards noon the colour temperature rises (bluish light). Towards the
evening, the colour temperature falls again. The artificial mimicry of the
colour temperature progression can help to increase people's ability to
concentrate.
5.4.3 Dim2Warm
The Dim2Warm mode simulates the dimming behaviour of a traditional
incandescent lamp: if the lamp is lit very low, a very warm colour temper-
ature is emitted, which can ensure a cosy and comfortable mood. As the
brightness increases, the colour temperature is raised, with the result that
at full brightness, cold and thus subjectively bright light is emitted.
33