A method and system for determining maximum brightness of rgb LED light source matching target chromaticity
A technology of LED light source and maximum brightness, which is applied in the direction of electrical components, etc., can solve the problems of indetermination of RGB LED light source mixing ratio, low dimming efficiency, and RGB LED light source cannot be used in mixed light, so as to reduce the number of debugging and improve dimming efficiency , the effect of improving accuracy
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Embodiment 1
[0029] In the technical solutions disclosed in one or more embodiments, such as figure 1 As shown, a method for determining the maximum brightness of an RGB LED light source matching the target chromaticity includes the following steps:
[0030] Step 1. Obtain target chromaticity data;
[0031] Step 2. Obtain the absolute tristimulus values of the LED light sources of each color R, G, and B at their maximum control signal values measured by the spectroradiometer;
[0032] Step 3. Establish a light mixing equation set based on the relationship between the target chromaticity and the absolute tristimulus value, solve the light mixing equation set according to the acquired target chromaticity data and absolute tristimulus value, and obtain the normalization of LEDs of R, G, and B colors brightness matching factor;
[0033] Step 4. Calculate the maximum brightness matching coefficient according to the normalized brightness matching coefficient, and obtain the maximum brightn...
Embodiment 2
[0065] This embodiment provides a system for determining the maximum brightness of an RGB LED light source matching the target chromaticity, such as figure 2 shown, including:
[0066] The first acquisition module: used to acquire target chromaticity data;
[0067] The second acquisition module: used to acquire the absolute tristimulus values of the LED light sources of R, G, and B colors at their maximum control signal values measured by the spectroradiometer;
[0068] Normalized luminance matching coefficient calculation module: used to establish the mixed light equations according to the relationship between the target chromaticity and the absolute tristimulus value, solve the mixed light equations according to the acquired target chromaticity data and the absolute tristimulus value, and obtain R, G , B normalized brightness matching coefficient of LEDs of various colors;
[0069] Maximum brightness numerical calculation module: used to calculate the maximum brightne...
Embodiment 3
[0071] This embodiment provides an electronic device, including a memory, a processor, and computer instructions stored in the memory and executed on the processor. When the computer instructions are executed by the processor, the steps described in the method in Embodiment 1 are completed.
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