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Method and system for determining maximum brightness of super-three-color LED light source matching target chromaticity

A LED light source and maximum brightness technology, applied in the field of LED lighting, can solve the problems of low dimming efficiency, non-unique light mixing equation, and inability to adjust mixed light colors, etc., to achieve easy operation, improve dimming efficiency, and reduce dimming The effect of the number of times of light

Active Publication Date: 2019-12-20
BINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors found that, on the one hand, only given the target chromaticity information, it is impossible to determine the mixing ratio of each light color LED of the super three-color LED light source
On the other hand, since the super three-color LED light source contains more than three types of chips, even if the brightness and chromaticity information of the target light color are given, the solution to the light mixing equation is not unique, that is, for the three-color LED that can solve The method of the proportion of each light color of the light source is not applicable to the super three-color LED light source
At the same time, the brightness of the target light color may exceed the maximum brightness that can be mixed by the super three-color LED light source, so that the light color that meets the user's lighting requirements cannot be adjusted or mixed multiple times. less efficient

Method used

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  • Method and system for determining maximum brightness of super-three-color LED light source matching target chromaticity
  • Method and system for determining maximum brightness of super-three-color LED light source matching target chromaticity
  • Method and system for determining maximum brightness of super-three-color LED light source matching target chromaticity

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Embodiment 2

[0072] This embodiment provides a system for determining the maximum brightness of a super three-color LED light source matching the target chromaticity, such as figure 2 shown, including:

[0073] A module for obtaining target chromaticity data;

[0074] A module for obtaining the absolute tristimulus value of each light color LED light source at its maximum control signal value measured by the spectroradiometer;

[0075] It is used to establish a linear programming model with the maximum luminance of the super three-color LED light source as the objective function under the target chromaticity, and solve the linear programming model to obtain the normalized brightness matching coefficient of each light color LED in the super three-color LED light source module;

[0076] It is used to calculate the maximum brightness matching coefficient according to the normalized brightness matching coefficient, and obtain the achievable maximum brightness when the super tricolor LED lig...

Embodiment 3

[0078] 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.

Embodiment 4

[0080] This embodiment provides a computer-readable storage medium for storing computer instructions, and when the computer instructions are executed by a processor, the steps described in the method in Embodiment 1 are completed.

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Abstract

The invention provides a method and system for determining the maximum brightness of a super-three-color LED light source matching target chromaticity, solves a problem that a target chromaticity is matched through the super-three-color LED light source under the condition that the target light color brightness is not given, determines the maximum brightness which can be achieved by the super-three-color LED light source when the target chromaticity is matched, further solves a problem that a light mixing equation does not have a unique solution when the target light color brightness and the chromaticity are given, and can avoid a problem that the given target light color brightness possibly exceeds the maximum brightness which can be mixed by the light source. According to the method, anabsolute tristimulus value of each light color LED of the super-three-color LED light source at the maximum control signal value is measured only through a spectral radiometer, and then a linear programming model is constructed in combination with a target chromaticity and is solved, so the maximum brightness when the target chromaticity is matched can be determined. The method is advantaged in that the method is simple and convenient to operate, can meet the requirement of dimming by adopting a super-three-color LED light source, and can be applied to intelligent lighting and dynamic lightingsystems.

Description

technical field [0001] The present disclosure relates to the related technical field of LED lighting, in particular, to a method and a system for determining the maximum brightness of a super three-color LED light source matching a target chromaticity. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the advantages of high efficiency, energy saving, environmental protection, long life, and convenient dimming, LED light sources are entering the field of general lighting applications with unstoppable momentum, and are known as the third light source revolution after incandescent lamps and fluorescent lamps. At present, there are two main methods for LED light sources to produce white light, that is, blue light chips excite yellow phosphor powder and mix multi-color chips. Among them, the latter has the advantages of high efficiency, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08G06F17/11H05B44/00
CPCG06F17/11Y02B20/30
Inventor 章夫正
Owner BINZHOU UNIV
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