User's Manual

Astera LED Technology GmbH
AX1 Technical Reference Manual 2020-08-25
Page | 9
7 OPERATION
7.1 ASTERARGB COLOR SPACE
The lights work with a specially optimized RGB color space, the AsteraRGB color space. It is
designed to eliminate the need to control each color individually to display a certain color.
Instead, the light calculates the optimum combination of all colors based on an RGB value.
It considers each LED chip’s temperature as well as an optimal color rendering.
Due to this, it is possible to reproduce colors with high accuracy. It’s even possible to
calculate an AsteraRGB representation for any CIE color. The easiest way to do this is with the
AsteraApp™:
• Go to the color picker and add a new favorite color
• Go to favorite colors and edit it
The dialog on the right will open.
It allows you to find AsteraRGB values for a certain color
temperature. S-RGB or CIE1931 values can be calculated to
AsteraRGB by pressing the corresponding buttons.
The primaries of the AsteraRGB are defined as:
White Point
x
y
0.4917
0.4878
The light also includes the Dynamic Power Boost feature. It ensures that colors that consume
less electrical power are boosted slightly, while power power-consuming colors are slightly
compressed.
This maximizes the brightness while maintaining the desired battery runtime.
While controlling with the AsteraApp™, only RGB values can be set.
By DMX control, it is possible to control all colors separately. But it should be noted, that then
temperature compensation is only available for Red, Green and Blue;
White will experience temperature drift, its brightness will not be constant.
Red
Green
Blue
x
R
y
R
x
G
y
G
x
B
y
B
0.7079
0.2920
0.1750
0.7200
0.1566
0.0177