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Method and apparatus for controlling a variable-colour light source

A color and light source technology, applied in the field of calibration of variable color light sources, can solve the problems of constant trouble, difficulty in obtaining accurate color control, complex light source, etc., and achieve the effect of cost saving

Inactive Publication Date: 2009-01-21
MARTIN PROFESSIONAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] However, accurate color control at different brightness values ​​is difficult to obtain due to the different characteristics of individual light sources and potential nonlinearities
This typically requires cumbersome manual adjustment of the individual light sources or complex and expensive feedback control of the light sources
For example, it is cumbersome to control the individual potentiometers so that the overall brightness of the variable color light source assembly varies while keeping the color (e.g., hue and saturation) constant

Method used

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  • Method and apparatus for controlling a variable-colour light source
  • Method and apparatus for controlling a variable-colour light source
  • Method and apparatus for controlling a variable-colour light source

Examples

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Embodiment Construction

[0047] figure 1 A block diagram of an embodiment of a lighting system is schematically shown. The system comprises a variable color light source 100 and a control device 101 for controlling the variable color light source 100 .

[0048] The variable color light source comprises a plurality of different independently controllable colored light sources 102 , 103 , 104 , each for emitting light of a predetermined corresponding color, which are additively mixed to obtain the total emitted light 110 . For example, variable color light source 100 may include one or more individual light sources for each of the primary colors red, blue, and green. exist figure 1 In the example, 3 light sources are shown. However, it is to be understood that the variable color light source may comprise a different number of different colored light sources. For example, some systems include light sources of additive colors in addition to the primary colors, such as amber light sources, white light ...

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Abstract

Disclosed is a control device for controlling a variable-colour light source, the variable-colour light source comprising a plurality of individually controllable colour light sources. The control device comprises a control unit for generating, responsive to an input signal indicative of a colour and a brightness, respective activation signals for each of the individually controllable colour light sources. The control unit is configured to generate the activation signals from the input signal and from predetermined calibration data indicative of at least one set of colour values for each of the individually controllable light sources.

Description

technical field [0001] The present invention relates to the calibration of variable color light sources which allow the provision of colored light of selectable brightness and / or color by means of a plurality of independently controllable light sources. Background technique [0002] Colored light sources for generating light of variable color and / or intensity are widely used in the entertainment industry, eg for stage lighting etc. and for other purposes within lighting design, eg for providing lighting effects in buildings etc. [0003] Typically, such a variable color light source includes a plurality of independently controllable light sources such that each independently controllable light source emits light of a predetermined color. For example, in an RGB system, variable color light sources may include independently controllable light sources of the most common primary colors - red, blue and green. By controlling the relative brightness of each independently controlla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B33/0827H05B33/086H05B33/0869H05B45/22H05B45/20H05B45/46H05B45/28
Inventor 阿伦·佩德森
Owner MARTIN PROFESSIONAL
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