Light-emitting diode lighting device and method for improving color rendering of light-emitting diode lighting device
A technology of light emitting diodes and lighting devices, which is applied to the parts of lighting devices, lighting devices, lighting and heating equipment, etc., can solve the problems of poor consistency, low light extraction efficiency, large fluctuation of color rendering, etc. High luminous efficiency and stable color rendering
Inactive Publication Date: 2015-11-25
SICHUAN SUNFOR LIGHT
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Problems solved by technology
[0004] However, although the above-mentioned method can improve the color rendering of the LED lighting device, it increases the structural complexity of the LED lighting device; moreover, different phosphors are affected differently by temperature, so the light output from the LED lighting device will be different. Large fluctuations in color rendering and poor consistency
In addition, most of the technical solutions in the prior art generally use increased red phosphors, but the price of this material is very expensive, and the light extraction efficiency is low, which directly leads to an increase in the cost of the LED lighting device and Reduced light efficiency
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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0043] For the LED light source, the principle of improving the color rendering of the LED light source is: after analyzing the spectrum of the LED light source, refer to the natural spectrum of nature, and make corresponding supplements to the missing or weak spectrum in the LED light source, so that The purpose of improving the color rendering of the LED light source is achieved.
[0044] At present, the light emitting angle of the commonly used LED light source is usually 140°, that is to say, there is no beam output from the back of the LED light source. However, in the LED lighting devices that are often used at present, the LED light source is generally not directly exposed in the lighting device (for example, a lamp), but the LED light source is ...
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The invention discloses a light-emitting diode lighting device and method for improving color rendering of the light-emitting diode lighting device. The method includes the following steps: at least one total reflection optical lens is arranged on the surface of a non-light source area of a light source module plate which is provided with a white light light-emitting diode light source module; and at least one kind of optical material which is used for reflecting the light rays with set wavelengths is coated on the surface of the total reflection optical lens. By means of the light-emitting diode lighting device and method for improving color rendering of the light-emitting diode lighting device, the color rendering of the LED lighting device can be greatly improved, and the manufacture cost of the LED lighting device is reduced.
Description
technical field [0001] The invention relates to light-emitting diode technology, in particular to a light-emitting diode lighting device and a method for improving the color rendering of the light-emitting diode lighting device. Background technique [0002] With the continuous development of light-emitting diode (LED) lighting technology, lighting devices using LEDs have also begun to enter the field of indoor lighting on a large scale. The LED light source used in indoor lighting is much higher than the traditional light source in terms of light efficiency. Nevertheless, LED still has bigger defect compared with traditional light source. For example, in terms of color rendering, LED light sources have a greater distance than incandescent lamps, and indoor lamps just have higher requirements for color rendering of light sources. For example, LED bulb lamps have been widely used at present, but because LED bulb lamps need a radiator for heat dissipation, and for ease of us...
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IPC IPC(8): F21S2/00F21V7/22F21Y101/02F21K9/64F21K9/68F21K9/90F21Y115/10
CPCF21V5/04F21V13/04
Inventor 杨冕李东明贾晋
Owner SICHUAN SUNFOR LIGHT