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Illuminating device capable of toning

A lighting device and transparent technology, applied in the field of lighting, can solve problems such as the limitation of the use of LED lighting devices, the complexity of LED light control methods, and the impact on the use of LED lighting devices, and achieve the effect of simple structure and adjustable color temperature

Inactive Publication Date: 2015-03-04
LEEDARSON IOT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the control method of this dimmable and color-tunable LED lamp is relatively complicated and requires multiple driver ICs. If the driver IC breaks down, it will affect the use of the entire LED lighting device. Therefore, the use of the existing LED lighting device is limited. limitations

Method used

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Embodiment Construction

[0016] figure 1 It is a cross-sectional view of a color-tunable lighting device 100 according to the first embodiment of the present invention, which includes an LED light source 20 and a fluorescent sheet 10 , and the fluorescent sheet 10 is movably arranged above the LED light source 20 . This movement refers to that the fluorescent sheet 10 is rotatable relative to the LED light source 20 (such as figure 1 shown), may also mean that the fluorescent sheet 20 moves in parallel relative to the LED light source 20 . The thickness of the fluorescent sheet 10 changes according to a predetermined rule in the moving direction of the fluorescent sheet 10 . The so-called change of the thickness according to a predetermined rule can be a gradual increase in the moving direction of the fluorescent sheet 10 according to the color adjustment requirement, or a change in the form of a wave that first increases and then decreases. The phosphor sheet 10 is provided with at least a first ph...

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Abstract

The invention discloses an illuminating device capable of toning. The illuminating device capable of toning comprises an LED (light-emitting diode) light source and a fluorescent sheet which is movably arranged above the LED light source, wherein the thickness of the fluorescent sheet is changed according to a predetermined rule in the moving direction of the fluorescent sheet; at least first fluorescent powder and a second fluorescent powder are arranged on the fluorescent sheet; excited by light emitted by the LED light source, the first fluorescent powder emits first light; excited by light emitted by the LED light source, the second fluorescent powder emits second light; and excited by the first light, the second fluorescent powder emits light. The illuminating device capable of toning disclosed by the invention has the advantages of a simple structure and an adjustable color temperature.

Description

technical field [0001] The invention relates to the lighting field, in particular to a color-adjustable lighting device. Background technique [0002] Light-emitting diodes can be widely used as light sources in the field of lighting because of their advantages such as high brightness, low operating voltage, low power consumption, easy matching with integrated circuits, simple driving, and long life. Existing LED lighting devices generally include at least two LEDs that can emit different monochromatic lights, and the desired color light can be obtained by mixing the monochromatic lights emitted by the two LEDs and modulating the current of the two LEDs. Here, in order to obtain stable color light output, the current of each LED must be precisely controlled. In the prior art, a PWM (Pulse Width Modulation) control method is commonly used to modulate the current of each LED to obtain various stable color lights. For example, a Chinese invention patent with an application pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50
CPCH01L33/505H01L33/504H01L2933/0041
Inventor 李小平郑江华李江淮
Owner LEEDARSON IOT TECH INC
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