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Method for controlling a lighting device, and lighting device

A light-emitting mechanism and light-emitting device technology, applied in the direction of electroluminescence light source, light source, electric light source, etc., can solve the problems of high cost, temperature control or temperature adjustment, etc., and achieve the effect of less consumption

Inactive Publication Date: 2018-08-31
TECH UNIV DARMSTADT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature control or temperature regulation of the lighting means is very complex and cost-intensive

Method used

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  • Method for controlling a lighting device, and lighting device
  • Method for controlling a lighting device, and lighting device
  • Method for controlling a lighting device, and lighting device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0046] exist figure 1 shows schematically for different light-emitting diodes their power spectrum distributions in relation to emission wavelengths at two temperatures, where the dotted line shows the power spectrum distribution at 25°C and the dotted line shows the power spectrum at 80°C, respectively distributed. Here, the power spectral distributions 1' and 1" of the blue light-emitting diode 1, the power spectral distributions 2' and 2" of the green light-emitting diode 2, the power spectral distribution 3' and the first red light-emitting diode 3 are shown by way of example. 3", the power spectral distribution 4' and 4" of the second light-emitting diode 4 and the power spectral distribution 5' and 5" of the white light-emitting diode 5 emitting a broadband white spectrum, wherein the white light-emitting diode 5 has wavelength conversion of light emission device as a light-emitting device. It is shown that: in all LEDs 1 to 5, the peak wavelength shifts towards higher ...

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PUM

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Abstract

The invention relates to a method for controlling a lighting device (6) comprising at least two lighting means (1, 2, 3, 4, 5) having different emission characteristics: in a sensing step at least oneactual temperature value is sensed and during a pre-determinable sensing period at least one item of temperature change information is sensed; in a control signal generating step new control signalsfor the respective activation of the at least two lighting means (1, 2, 3, 4, 5) for emission of a predetermined spectral power distribution by means of the lighting device (6) are determined as a function of the at least one sensed actual temperature value and the at least one item of temperature change information; and in an activating step the new control signals are transmitted to an operatingunit (12), by which the operating current for each lighting means (1, 2, 3, 4, 5) is provided, in order to keep the spectral power distribution emitted by the lighting device (6) as constant as possible during the operation of the lighting device (6). In the sensing step an average operating temperature of the at least two illumination means (1, 2, 3, 4, 5) can be sensed as an actual temperaturevalue or for each lighting means (1, 2, 3, 4, 5) an operating temperature can be sensed as actual temperature value of the relevant lighting means.

Description

technical field [0001] The invention relates to a method for controlling a lighting arrangement with at least two lighting means having different emission characteristics. Background technique [0002] Many different lighting devices are known which can generate and emit light in different ways. In the case of an incandescent lamp, the electrical conductor is heated by an electric current and excited to heat or glow. The emission spectrum of an incandescent lamp can be predetermined on the one hand by suitable material selection and dimensioning of the filament through which the current flows, and on the other hand can be influenced by the configuration or coating of the envelope surrounding the filament. [0003] With light-emitting diodes, light-emitting semiconductor devices, electric current can be converted into light emission very efficiently. The spectral properties of the light generated with the light-emitting diode concerned can be influenced by the selection of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/18H05B45/28
Inventor T.Q.庆T.Q.永
Owner TECH UNIV DARMSTADT