Light emitting diode (LED) lighting device and light control method thereof

A technology of LED lighting and lighting control, applied in the field of lighting, can solve the problems of power grid impact and human eye discomfort, and achieve the effect of avoiding stimulation

Active Publication Date: 2013-05-08
BEIJING ITSYNC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide an LED lighting device and its lighting control method, which can solve the problem in the prior art that the sudden change of brightness and / or color will make human eyes feel uncomfortable, and will cause Problems that cause shocks to the grid

Method used

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  • Light emitting diode (LED) lighting device and light control method thereof
  • Light emitting diode (LED) lighting device and light control method thereof
  • Light emitting diode (LED) lighting device and light control method thereof

Examples

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Embodiment 1

[0021] figure 1 A flow chart showing a lighting control method of an LED lighting device according to Embodiment 1 of the present invention includes the following steps:

[0022] Step S102, adjust (increase or decrease) the current luminous brightness of each LED light-emitting tube group in the LED lighting device to a predetermined value at regular intervals until each LED light-emitting tube group reaches the corresponding desired brightness. Luminous brightness.

[0023] For example, each time interval can be the same or different. Also, the value of each adjustment may be the same or different.

[0024] The embodiment of the present invention adopts the method of increasing or decreasing the luminance of each LED light-emitting tube group by a predetermined value at regular intervals, gradually approaching the brightness and / or color of the LED lighting device to reach the final brightness or color, and realizing the adjustment of LED lighting. The brightness and / or co...

Embodiment 2

[0026] In order to achieve the first embodiment at regular intervals, the current luminous brightness of each LED luminous tube group in the LED lighting device is adjusted to a predetermined value until each LED luminous tube group reaches the corresponding luminous brightness to be adjusted. Brightness, namely step S102, such as figure 2 As shown, it can be done in the following ways:

[0027] Step S202, according to the following formula (1), calculate the predetermined value ΔL to be adjusted each time for each LED lighting device i :

[0028] Δ L i = ( L i ′ - L i ) × N % - - - ( 1 )

[0029] in, It is the luminous brightness to be adjusted by the LED l...

Embodiment 3

[0035] In the second embodiment, if the LED lighting device includes three LED light-emitting tube groups, namely red, green, and blue LED light-emitting tube groups, the maximum brightness value of each LED light-emitting tube group is 255.

[0036] Assume that the brightness L of the red, green, and blue LED light-emitting tube groups before adjustment is red , L green , L blue They are: 10, 80, 120, the brightness to be adjusted (that is, the final brightness value) Respectively: 50, 198, 60, T=0.01 seconds, N=1, then, every 0.01 seconds, the luminance of the red LED light-emitting tube group increases by ΔL red =(50-10)×1%=0.4, the luminous brightness of the green LED light-emitting tube group increases by ΔL green =(198-80)×1%=1.18, the luminous brightness of the blue LED light-emitting tube group increases by ΔL blue =(60-120)×1%=-0.6.

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Abstract

The invention discloses a light emitting diode (LED) lighting device and a light control method of the LED lighting device. The LED lighting device comprises at least one LED lighting tube group. The light control method of the LED lighting device includes that the current lighting brightness of each LED lighting tube group in the LED lighting device is adjusted to a predetermined value at regular intervals, until each LED lighting tube group can reach the corresponding lighting brightness which the LED lighting tube group needs to be adjusted to. According to the LED lighting device and the light control method of the LED lighting device, the gradient effect when the brightness and/or the colors of the LED lighting device are adjusted is achieved, and the changes of the brightness and/or the colors are controlled in a gradient mode so that sudden changes cannot happen when the colors and/or the brightness is changed, and stimulation to human eyes can be avoided; and meanwhile, when the LED lighting device is powered on after the power is shut down, the lighting brightness of the LED lighting tube groups is increased gradually so that no impact on a power grid can be caused.

Description

technical field [0001] The present invention relates to the technical field of lighting, and more specifically, to an LED lighting device and a lighting control method thereof. Background technique [0002] In recent years, with the promotion and development of energy-saving and emission-reduction technologies, energy-saving lighting design has become one of the research focuses in the field of lighting fixtures. LED (Light Emitting Diode, Light Emitting Diode) has received people's attention in energy-saving lighting design because of its advantages of high luminous efficiency, good energy-saving effect, and long life. Using LEDs as lighting devices to replace traditional lighting devices is a development trend in today's lighting technology field. [0003] At present, when the brightness and / or color of the LED lighting device in the prior art is adjusted, the final effect is achieved immediately. For example, when the light is turned on, the brightness immediately reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/42Y02B20/40
Inventor 黄喜荣
Owner BEIJING ITSYNC TECH
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