随着LED技术的发展和人类生活水平的提高，人们对LED照明不再仅仅要求照亮，更讲求照明的品质。直接影响照明品质的重要参数是：光源的显色指数和色温。最理想的光源是自然光，其具有非常好的显色性和多种不同的色温。但是，如何能够获得如自然光般的照明品质的人造光源，一直是近百年来人类的梦想。截至目前，人类电光源从白炽灯到节能灯，再到现在的LED灯，唯有白炽灯在显色特性方面能够接近自然光(白炽灯的全部显色指数R1～R15都在95以上)。遗憾的是白炽灯只有固定的色温，耗能低效，即将被淘汰。近年来，人们一直都在研究如何能够获得像自然光那样的新型LED人造光源：既能够在宽的范围内(2700～6500K)色温可调，又能够在该范围内保持超高的显色指数(R1～R15都在90以上)。虽然有部分LED灯具，已经实现了在宽的范围内(2700～6500K)色温可调，但显色指数方面却参差不齐。有一些LED光源及灯具能做到一般显色指数Ra和特殊显色指数R9都≥90，但也仅是这两个指数较高，无法实现全部显示指数均较高，从而模拟自然光。目前公开文献所能查询到的或者市面上已有的LED光源，无法实现在宽的范围内(2700～6500K)色温可调，且全部显色指数R1～R15处均达到高显色指数，大于等于90。With the development of LED technology and the improvement of human living standards, people no longer only require LED lighting, but also pay more attention to the quality of lighting. The important parameters that directly affect the lighting quality are: the color rendering index and color temperature of the light source. The ideal light source is natural light, which has very good color rendering and a variety of different color temperatures. However, how to obtain an artificial light source with the same lighting quality as natural light has been the dream of human beings for nearly a hundred years. Up to now, among human electric light sources, from incandescent lamps to energy-saving lamps, to current LED lamps, only incandescent lamps can approach natural light in terms of color rendering characteristics (all color rendering indexes R1-R15 of incandescent lamps are above 95). It is a pity that incandescent lamps only have a fixed color temperature and are inefficient in energy consumption, so they will soon be eliminated. In recent years, people have been studying how to obtain a new type of LED artificial light source like natural light: it can not only adjust the color temperature in a wide range (2700-6500K), but also maintain an ultra-high color rendering index ( R1-R15 are all above 90). Although some LED lamps have achieved adjustable color temperature in a wide range (2700-6500K), the color rendering index is uneven. There are some LED light sources and lamps that can achieve both the general color rendering index Ra and the special color rendering index R9 ≥ 90, but only these two indexes are high, and it is impossible to achieve a high display index, thereby simulating natural light. At present, the LED light sources that can be found in public documents or existing on the market cannot realize the adjustable color temperature in a wide range (2700-6500K), and all the color rendering indexes R1-R15 can reach a high color rendering index, which is greater than equals 90.

【发明内容】【Content of invention】

本发明所要解决的技术问题是：弥补上述现有技术的不足，提出一种LED光源模组及LED灯具，在实现色温在2700K-6500K范围可调时，显色指数Ra、R9在95以上，且全部显色指数R1～R15均在90以上，色品差△C小于0.0054。The technical problem to be solved by the present invention is to make up for the deficiencies of the above-mentioned prior art, and propose an LED light source module and an LED lamp. When the color temperature is adjustable in the range of 2700K-6500K, the color rendering index Ra and R9 are above 95, And all the color rendering indexes R1~R15 are above 90, and the chromaticity difference △C is less than 0.0054.

本发明的技术问题通过以下的技术方案予以解决：Technical problem of the present invention is solved by following technical scheme:

一种LED光源模组，所述LED光源模组包括提供蓝绿光的第一LED光源，提供暖白光的第二LED光源，提供蓝光的第三LED光源和提供红光的第四LED光源；所述第一LED光源包括峰值波长为442～448nm的第一蓝光LED芯片，其上涂覆有峰值波长为500～520nm的绿光荧光粉，提供的所述蓝绿光中蓝光所占的光功率比例为0.33～0.49，绿光所占的光功率比例为0.51～0.67；所述第二LED光源包括峰值波长为442～448nm的第二蓝光LED芯片，其上涂覆有峰值波长为525～540nm的绿光荧光粉和580～600nm的橙光荧光粉，提供的所述暖白光中蓝光所占的光功率比例为0～0.1，绿光所占的光功率比例为0.25～0.33，橙光所占的光功率比例为0.58～0.67；所述第三LED光源包括峰值波长为470-490nm的第三蓝光LED芯片；所述第四LED光源包括峰值波长为627～635nm的第四红光LED芯片。An LED light source module, the LED light source module includes a first LED light source that provides blue-green light, a second LED light source that provides warm white light, a third LED light source that provides blue light, and a fourth LED light source that provides red light; The first LED light source includes a first blue LED chip with a peak wavelength of 442-448nm, which is coated with a green fluorescent powder with a peak wavelength of 500-520nm, and provides the blue-green light in which blue light occupies The power ratio is 0.33-0.49, and the ratio of green light power is 0.51-0.67; the second LED light source includes a second blue LED chip with a peak wavelength of 442-448nm, coated with a 540nm green fluorescent powder and 580-600nm orange fluorescent powder, the optical power ratio of the blue light in the warm white light provided is 0-0.1, the optical power ratio of the green light is 0.25-0.33, and the orange light The optical power ratio is 0.58-0.67; the third LED light source includes a third blue LED chip with a peak wavelength of 470-490nm; the fourth LED light source includes a fourth red LED chip with a peak wavelength of 627-635nm chip.

一种LED灯具，包括散热器、反光罩、扩散板和其上设置有LED光源模块的基板，所述LED光源模块包括至少一组LED光源模组，所述LED光源模组为如上所述的LED光源模组，所述LED灯具还包括四个驱动电路和控制电路；所述控制电路中存储有各个LED光源的光通量配比与混合后光源的色度参数之间的对应关系表，其中在各个光源的光通量配比下，各色度参数满足如下条件：色温在2700K～6500K范围内可调，各色温下光源的一般显色指数Ra≥95，特殊显色指数R9≥95，全部显色指数R1～R15均≥90，色品差△C＜0.0054；所述控制电路根据用户需要得到的混合后的色温选择相应的各个LED光源的光通量配比，根据各个LED光源的光通量配比确定各个LED光源的驱动电流，并将计算的驱动电流分别输出至相应的驱动电路；所述四个驱动电路分别将接收的驱动电流输出至相应的LED光源，驱动相应的LED光源发光。An LED lamp, comprising a radiator, a reflector, a diffuser plate, and a substrate on which an LED light source module is arranged, the LED light source module includes at least one set of LED light source modules, and the LED light source module is as described above The LED light source module, the LED lamp also includes four drive circuits and a control circuit; the control circuit stores a correspondence table between the luminous flux ratio of each LED light source and the chromaticity parameters of the mixed light source, wherein Under the luminous flux ratio of each light source, each chromaticity parameter meets the following conditions: the color temperature is adjustable within the range of 2700K ~ 6500K, the general color rendering index of the light source at each color temperature is Ra≥95, the special color rendering index is R9≥95, and the overall color rendering index R1～R15 are all ≥90, chromaticity difference △C<0.0054; the control circuit selects the corresponding luminous flux ratio of each LED light source according to the mixed color temperature obtained by the user, and determines each LED according to the luminous flux ratio of each LED light source The driving current of the light source, and output the calculated driving current to the corresponding driving circuit respectively; the four driving circuits respectively output the received driving current to the corresponding LED light source, and drive the corresponding LED light source to emit light.

本发明与现有技术对比的有益效果是：The beneficial effect that the present invention compares with prior art is:

本发明的LED光源模组及LED灯具，LED光源模组为特别设置的第一蓝光LED芯片，第二蓝光LED芯片、第三蓝光LED芯片和第四红光LED芯片，通过各LED芯片波长以及相应荧光粉波长的配合，从而产生特定光谱功率分布的混合光。后续用于LED灯具中时，配合灯具中控制电路，控制电路中预先存储好满足条件的各个光源的光通量配比与色度参数之间的对应关系表，根据需要得到的色温选择各个光源的光通量配比，由此确定驱动电流输出给各个光源驱动发光，得到需要的色温，同时得到的光源的显色指数Ra、R9均≥95，且全部显色指数R1～R15均≥90，色品差△C＜0.0054。本发明中LED灯具，在实现色温在2700K～6500K范围内可调的前提下，显示指数Ra、R9均≥95，且全部显色指数R1～R15均≥90，色品差△C＜0.0054，甚至能达到≤0.0050，色度参数较好，与自然光接近，可模拟自然光满足高要求的应用。In the LED light source module and LED lamp of the present invention, the LED light source module is a specially set first blue LED chip, a second blue LED chip, a third blue LED chip and a fourth red LED chip. The matching of corresponding phosphor wavelengths produces mixed light with specific spectral power distribution. When it is subsequently used in LED lamps, cooperate with the control circuit in the lamp, and the corresponding relationship table between the luminous flux ratio and chromaticity parameters of each light source that meets the conditions is stored in the control circuit in advance, and the luminous flux of each light source is selected according to the color temperature obtained as required Ratio, thus determine the driving current output to each light source to drive light to obtain the required color temperature, and the color rendering index Ra and R9 of the light source obtained at the same time are all ≥ 95, and all the color rendering index R1 ~ R15 are ≥ 90, the color quality is poor ΔC<0.0054. In the present invention, on the premise that the color temperature can be adjusted within the range of 2700K-6500K, the display indices Ra and R9 are both ≥ 95, and all the color rendering indices R1-R15 are ≥ 90, and the chromaticity difference △C<0.0054. It can even reach ≤0.0050, and the chromaticity parameters are better, which are close to natural light, and can simulate natural light to meet high-demand applications.

【附图说明】【Description of drawings】

图1是本发明具体实施方式中的LED灯具的结构示意图；Fig. 1 is a schematic structural view of an LED lamp in a specific embodiment of the present invention;

图2是本发明具体实施方式中的LED灯具的电路示意图；Fig. 2 is a schematic circuit diagram of an LED lamp in a specific embodiment of the present invention;

图3是本发明具体实施方式中的LED灯具中LED光源模块的结构示意图；3 is a schematic structural view of an LED light source module in an LED lamp in a specific embodiment of the present invention;

图4是本发明具体实施方式中的LED灯具中选取的一种组合下各芯片和荧光粉的相对光谱功率分布图；Fig. 4 is a relative spectral power distribution diagram of each chip and phosphor under a combination selected from the LED lamp in the specific embodiment of the present invention;

图5是本发明具体实施方式中的LED灯具在一种组合下以及一组光功率配比比例下产生的四种颜色的光的相对光谱功率分布图；Fig. 5 is a relative spectral power distribution diagram of four colors of light generated by an LED lamp in a specific embodiment of the present invention under a combination and a set of optical power ratios;

图6是本发明具体实施方式中的LED灯具在一种组合下以及一组蓝光比例下三种颜色的光的色域范围示意图；Fig. 6 is a schematic diagram of the color gamut ranges of three colors of light under a combination and a set of blue light ratios of an LED lamp in a specific embodiment of the present invention;

图7是本发明具体实施方式中计算满足条件的光通量配比的方法流程图；Fig. 7 is a flow chart of a method for calculating a luminous flux ratio that satisfies the conditions in a specific embodiment of the present invention;

图8是本发明具体实施方式中的LED灯具在一种组合下以及一组光功率配比比例下混光后得到的白光的相对光谱功率分布图；Fig. 8 is a relative spectral power distribution diagram of white light obtained by mixing LED lights under a combination and a set of light power ratios in a specific embodiment of the present invention;

图9是本发明具体实施方式中LED灯具中多个LED光源的优选排列结构示意图；Fig. 9 is a schematic diagram of a preferred arrangement structure of multiple LED light sources in an LED lamp in a specific embodiment of the present invention;

图10a，图10b，图10c，图10d，图10e，图10f，图10g，图10h分别是LED灯具在2700K、3000K、3500K、4000K、4500K、5000K、5700K、6500K色温时的全彩色照度光斑图。Figure 10a, Figure 10b, Figure 10c, Figure 10d, Figure 10e, Figure 10f, Figure 10g, and Figure 10h are the full-color illumination spots of LED lamps at 2700K, 3000K, 3500K, 4000K, 4500K, 5000K, 5700K, and 6500K color temperatures respectively picture.

【具体实施方式】【detailed description】

下面结合具体实施方式并对照附图对本发明做进一步详细说明。The present invention will be described in further detail below in combination with specific embodiments and with reference to the accompanying drawings.

本发明在构建LED和荧光粉发光光谱模型的基础上，对LED混光方案进行深入研究，得到一组LED光源组合方案下，能实现以往不能实现的R1～R15均大于等于90的显色特性。以往的某些LED光源组合方案，例如公开日为2014年1月1日，公开号为CN103486466A的LED灯具中，无论如何控制调节各混光LED光源的光通量配比，都无法得到高的R1～R15指数，从而无法在某一光通量配比下实现Ra和R9≥95时全部显色指数R1～R15也均≥90，色品差△C＜0.0054。这是由其LED混光方案下参与混光的LED光源的光谱功率分布的固有属性决定的，当混光为上述公开方案中的光谱功率分布时，由于其光谱功率分布已经确定，则无论再如何参与混光的各光的光功率配比，也无法实现全部显色指数R1～R15也均≥90。而本发明中的LED光源组合方案下，调整了LED混光光源以及各光分量的光功率比例，从而得到一种新的参与混光的四种光的光谱功率分布，进一步结合控制调节，最终不仅能实现Ra和R9≥95，而且还能实现全部显色指数R1～R15均≥90，色品差△C＜0.0054。由于全部显色指数R1～R15均≥90，显色特性接近于自然光，可满足高要求的应用。Based on the construction of LED and phosphor emission spectrum models, the present invention conducts in-depth research on the LED light mixing scheme, and obtains a set of LED light source combination schemes, which can realize the color rendering characteristics of R1-R15 greater than or equal to 90 that could not be realized in the past . Some LED light source combination schemes in the past, such as the LED lamp with the publication date of January 1, 2014 and the publication number CN103486466A, no matter how the luminous flux ratio of each mixed light LED light source is controlled, it is impossible to obtain a high R1～ R15 index, so that it is impossible to achieve Ra and R9 ≥ 95 under a certain luminous flux ratio, and all color rendering indexes R1 ~ R15 are also ≥ 90, and the chromaticity difference △ C < 0.0054. This is determined by the inherent properties of the spectral power distribution of the LED light source participating in the light mixing under its LED light mixing scheme. No matter how the light power ratio of each light participating in the light mixing is, it is impossible to realize that all the color rendering indices R1-R15 are all ≥90. However, under the LED light source combination scheme in the present invention, the LED light mixing light source and the light power ratio of each light component are adjusted, thereby obtaining a new spectral power distribution of the four kinds of lights participating in light mixing, and further combined with control and adjustment, finally Not only can Ra and R9≥95, but also all color rendering indexes R1~R15≥90, and the chromaticity difference △C<0.0054. Since all color rendering indexes R1~R15 are ≥90, the color rendering characteristics are close to natural light, which can meet high-demand applications.

如图1和2所示，为本具体实施方式中的LED灯具的结构示意图和电路示意图。LED灯具包括散热器1、反光罩2、扩散板3和其上设置有LED光源模块4的基板5。其中，LED光源模块4包括至少一组LED光源模组(图中示出了多组)，LED灯具还包括四个驱动电路701、702、703、704和控制电路6。As shown in Fig. 1 and Fig. 2, it is a schematic structural diagram and a schematic circuit diagram of the LED lamp in this specific embodiment. The LED lamp comprises a heat sink 1, a reflector 2, a diffusion plate 3 and a substrate 5 on which an LED light source module 4 is arranged. Wherein, the LED light source module 4 includes at least one set of LED light source modules (multiple sets are shown in the figure), and the LED lamp further includes four drive circuits 701 , 702 , 703 , 704 and a control circuit 6 .

LED光源模块4包括多组LED光源模组，各组LED光源模组均包括四个LED光源，分别为提供蓝绿光的第一LED光源401，提供暖白光的第二LED光源402，提供蓝光的第三LED光源403和提供红光的第四LED光源404。The LED light source module 4 includes multiple groups of LED light source modules, and each group of LED light source modules includes four LED light sources, which are respectively the first LED light source 401 that provides blue-green light, the second LED light source 402 that provides warm white light, and the second LED light source 402 that provides blue light. The third LED light source 403 and the fourth LED light source 404 that provide red light.

其中，第一LED光源401包括峰值波长为442～448nm的第一蓝光LED芯片，其上涂覆有峰值波长为500～520nm的绿光荧光粉，从而第一蓝光LED芯片激发所述绿光荧光粉产生蓝绿光。通过调节绿光荧光粉的胶粉比例及涂覆量，使产生的蓝绿光中蓝光所占的光功率比例为0.33～0.49，绿光所占的光功率比例为0.51～0.67。本具体实施方式中，使用峰值波长为445nm的蓝光LED芯片激发510nm的绿光荧光粉，蓝绿光中蓝光所占的光功率比例为0.46，绿光所占的光功率比例为0.54。Wherein, the first LED light source 401 includes a first blue LED chip with a peak wavelength of 442-448nm, coated with a green fluorescent powder with a peak wavelength of 500-520nm, so that the first blue LED chip excites the green fluorescent light. The powder produces blue-green light. By adjusting the rubber powder ratio and coating amount of the green fluorescent powder, the optical power ratio of the blue light in the generated blue-green light is 0.33-0.49, and the optical power ratio of the green light is 0.51-0.67. In this specific embodiment, a blue LED chip with a peak wavelength of 445nm is used to excite a 510nm green phosphor, and the optical power ratio of the blue light in the blue-green light is 0.46, and the optical power ratio of the green light is 0.54.

第二LED光源402包括峰值波长为442～448nm的第二蓝光LED芯片，其上涂覆有峰值波长为525～540nm的绿光荧光粉和580～600nm的橙光荧光粉组成的混合荧光粉，从而第二蓝光LED芯片激发所述混合荧光粉产生暖白光。通过调节混合荧光粉中各荧光粉的混合比例及涂覆量，使产生的暖白光中蓝光所占的光功率比例为0～0.1，绿光所占的光功率比例为0.25～0.33，橙光所占的光功率比例为0.58～0.67。本具体实施方式中，使用峰值波长为445nm的蓝光LED芯片激发535nm的绿光荧光粉和585nm的橙光荧光粉组成的混合荧光粉，暖白光中蓝光所占的光功率比例为0.06，绿光所占的光功率比例为0.31，橙光所占的光功率比例为0.63。The second LED light source 402 includes a second blue LED chip with a peak wavelength of 442-448nm, which is coated with a mixed phosphor composed of a green phosphor with a peak wavelength of 525-540nm and an orange phosphor with a peak wavelength of 580-600nm, Therefore, the second blue LED chip excites the mixed phosphor to generate warm white light. By adjusting the mixing ratio and coating amount of each fluorescent powder in the mixed phosphor powder, the optical power ratio of the blue light in the generated warm white light is 0-0.1, the optical power ratio of the green light is 0.25-0.33, and the orange light is 0.25-0.33. The proportion of light power occupied is 0.58-0.67. In this specific embodiment, a blue LED chip with a peak wavelength of 445nm is used to excite a mixed phosphor powder composed of a 535nm green phosphor powder and a 585nm orange phosphor powder. The proportion of optical power occupied by orange light is 0.31, and the proportion of optical power occupied by orange light is 0.63.

第三LED光源403包括峰值波长为470-490nm的第三蓝光LED芯片，提供蓝光。本具体实施方式中，使用峰值波长为475nm的蓝光LED芯片。The third LED light source 403 includes a third blue LED chip with a peak wavelength of 470-490nm to provide blue light. In this specific embodiment, a blue LED chip with a peak wavelength of 475 nm is used.

第四LED光源404包括峰值波长为627～635nm的第四红光LED芯片，提供红光。本具体实施方式中，使用峰值波长为630nm的红光LED。The fourth LED light source 404 includes a fourth red LED chip with a peak wavelength of 627-635 nm to provide red light. In this specific embodiment, a red LED with a peak wavelength of 630 nm is used.

各LED光源排列形成LED光源模组时，可按如图3所示的优选方式，即四个LED光源按照正方形排列。将四个LED光源按照正方形排列，相对于按照直线排列的方式，可更好地汇聚光线，从而使各LED光源混光后效果更好。图中所示，按正方形排列，顺时针方向依次为：提供蓝绿光的所述第一LED光源401，提供暖白光的所述第二LED光源402，提供蓝光的所述第三LED光源403和提供红光的所述第四LED光源404。各LED光源在正方形中的排列顺序不受图中限制，按其它顺序形成正方形也能达到汇聚光线，混光较好的效果。When the LED light sources are arranged to form the LED light source module, the preferred way shown in Figure 3 can be followed, that is, four LED light sources are arranged in a square. Arranging the four LED light sources in a square can better gather the light compared to arranging them in a straight line, so that the mixed light effect of each LED light source is better. As shown in the figure, they are arranged in a square, clockwise: the first LED light source 401 that provides blue-green light, the second LED light source 402 that provides warm white light, and the third LED light source 403 that provides blue light and the fourth LED light source 404 that provides red light. The arrangement order of the LED light sources in the square is not limited in the figure, and the formation of squares in other orders can also achieve the effect of converging light and mixing light.

如图4所示，即为本具体实施方式中选取的第一LED光源(由峰值波长为445nm的蓝光LED芯片激发510nm的绿光荧光粉)，第二LED光源(由峰值波长为445nm的蓝光LED芯片激发535nm绿光荧光粉和585nm橙光荧光粉组成的混合荧光粉)，第三LED光源(475nm的蓝光LED芯片)，第四LED光源(630nm红光LED芯片)中各芯片、荧光粉的相对光谱功率分布图。图4中，B表示蓝光LED芯片，G表示绿光荧光粉，R表示红光LED芯片，O表示橙光荧光粉。在上述组合下，调节荧光粉胶粉比例、混合比例及涂覆量，使蓝绿光中蓝光所占的光功率比例为0.46，绿光所占的光功率比例为0.54；暖白光中蓝光所占的光功率比例为0.06，绿光所占的光功率比例为0.31，橙光所占的光功率比例为0.63，从而四个LED光源分别产生的蓝绿光、暖白光、蓝光和红光的相对光谱功率分布如图5所示。图5中，B_G_O表示暖白光，B_G表示蓝绿光，R_表示红光，B_表示蓝光。在上述组合和比例下，产生的蓝绿光、暖白光、蓝光与红光的色坐标分别为：(0.159，0.204)、(0.403,0.463)、(0.115,0.100)、(0.698,0.301)，其色域范围示意图如图6所示。从图6可知，该四种颜色的光的色坐标构成的四边形范围，覆盖了能源之星色域范围，表明该色坐标下的四种光混合得到的光可实现色温在2700K～6500K的范围内可调。As shown in Figure 4, it is the first LED light source selected in this specific embodiment (the green light phosphor of 510nm is excited by the blue light LED chip with the peak wavelength of 445nm), the second LED light source (the blue light with the peak wavelength of 445nm The LED chip excites the mixed phosphor composed of 535nm green phosphor and 585nm orange phosphor), the third LED light source (475nm blue LED chip), each chip and phosphor in the fourth LED light source (630nm red LED chip) The relative spectral power distribution plot. In Figure 4, B represents a blue LED chip, G represents a green phosphor, R represents a red LED chip, and O represents an orange phosphor. Under the above combination, adjust the ratio of phosphor powder, mixing ratio and coating amount, so that the proportion of optical power occupied by blue light in blue-green light is 0.46, the proportion of optical power occupied by green light is 0.54; the proportion of optical power occupied by blue light in warm white light The ratio of the optical power accounted for by the green light is 0.06, the optical power ratio of the green light is 0.31, and the optical power ratio of the orange light is 0.63, so that the blue-green light, warm white light, blue light and red light produced by the four LED light sources respectively The relative spectral power distribution is shown in Fig. 5. In Figure 5, B_G_O represents warm white light, B_G represents blue-green light, R_ represents red light, and B_ represents blue light. Under the above combinations and proportions, the color coordinates of blue-green light, warm white light, blue light and red light produced are: (0.159, 0.204), (0.403, 0.463), (0.115, 0.100), (0.698, 0.301), The schematic diagram of its color gamut range is shown in Figure 6. It can be seen from Figure 6 that the quadrilateral range formed by the color coordinates of the four colors of light covers the range of the Energy Star color gamut, indicating that the light obtained by mixing the four colors under the color coordinates can achieve a color temperature in the range of 2700K to 6500K Internally adjustable.

需说明的是，当选取范围内其它值的组合时，图5中波形的峰值会有移动。当蓝绿光、暖白光中蓝光、绿光、橙光所占的光功率比例设置为范围内其它取值时，相应波长下的相对功率值会有所变动，波形的压缩张开情形会有所不同。但无论波形峰值移动，或者波形收缩变化，总体上在442～448nm的蓝光LED芯片、470-490nm的蓝光LED芯片、627～635nm的红光LED芯片、500-520nm的绿光荧光粉、525～540nm的绿光荧光粉和580～600nm的橙光荧光粉组成的混合荧光粉组合下，蓝绿光、暖白光中相应光的光功率比例在前述范围中时，混合后光的相对光谱功率分布图与图5相似，得到的四种颜色的光的色坐标构成的四边形同样可覆盖能源之星色域范围，四种光混合得到的光即同样可实现色温在2700K～6500K的范围内可调。It should be noted that when a combination of other values within the range is selected, the peak of the waveform in Figure 5 will move. When the optical power ratio of blue light, green light, and orange light in blue-green light and warm white light is set to other values within the range, the relative power value at the corresponding wavelength will change, and the compression and expansion of the waveform will vary. different. However, no matter whether the peak value of the waveform moves or the waveform shrinks, the blue LED chip of 442-448nm, the blue LED chip of 470-490nm, the red LED chip of 627-635nm, the green phosphor powder of 500-520nm, and the Under the combination of 540nm green phosphor and 580-600nm orange phosphor, when the light power ratio of the corresponding light in blue-green light and warm white light is within the aforementioned range, the relative spectral power distribution of the mixed light The figure is similar to that in figure 5. The obtained quadrilateral formed by the color coordinates of the four colors of light can also cover the range of the Energy Star color gamut, and the light obtained by mixing the four colors can also achieve an adjustable color temperature within the range of 2700K to 6500K. .

LED灯具中电路组件工作时：控制电路6中存储有各个光源的光通量配比与混合后光源的色度参数之间的对应关系表，其中在各个光源的光通量配比下，各色度参数满足如下条件：色温在2700K～6500K范围内可调，各色温下光源的一般显色指数Ra≥95，特殊显色指数R9≥95，全部显色指数R1～R15均≥90，色品差△C＜0.0054；控制电路根据用户需要得到的混合后的色温选择相应的各个光源的光通量配比，根据各个光源的光通量配比确定各个光源的驱动电流，并将计算的驱动电流分别输出至相应的驱动电路701、702、703和704。When the circuit components in the LED lamp are working: the control circuit 6 stores the corresponding relationship table between the luminous flux ratio of each light source and the chromaticity parameters of the mixed light sources, wherein under the luminous flux ratio of each light source, each chromaticity parameter satisfies the following Conditions: The color temperature can be adjusted within the range of 2700K～6500K, the general color rendering index of the light source at each color temperature is Ra≥95, the special color rendering index is R9≥95, all the color rendering indices R1～R15 are ≥90, and the chromaticity difference △C＜ 0.0054; the control circuit selects the corresponding luminous flux ratio of each light source according to the mixed color temperature required by the user, determines the driving current of each light source according to the luminous flux ratio of each light source, and outputs the calculated driving current to the corresponding driving circuit 701, 702, 703 and 704.

四个驱动电路701、702、703和704分别将接收的驱动电流输出至相应的LED光源401、402、403和404，驱动相应的LED光源发光。四路驱动电路701、702、703和704采用脉冲宽度调节PWM的调节模式分别驱动四种LED光源。PWM调节模式调节控制的是各LED光源的输入电流的脉宽，使得LED光源始终工作在满幅度电流与零，减小色谱的偏移。可利用单片机采用16位定时器产生PWM信号，分成65536个灰度级。这样可提高控制精度，且使得灯光的变化过程柔和。The four driving circuits 701, 702, 703 and 704 respectively output the received driving currents to the corresponding LED light sources 401, 402, 403 and 404 to drive the corresponding LED light sources to emit light. The four-way driving circuits 701, 702, 703 and 704 respectively drive four kinds of LED light sources by adopting the regulation mode of pulse width regulation PWM. The PWM adjustment mode adjusts and controls the pulse width of the input current of each LED light source, so that the LED light source always works at full scale current and zero, reducing the shift of the color spectrum. A 16-bit timer can be used to generate a PWM signal with a microcontroller, which can be divided into 65536 gray levels. This improves the control precision and makes the light change process soft.

控制电路6通过驱动电路调节驱动电流，从而控制各光源的光通量输出，使LED灯具输出相应光通量配比下混合得到的混合白光，从而输出想要的色温下的混合白光，并且该色温下的除一般显色指数Ra、特殊显色指数R9均在95以上，而且全部显色指数R1～R15均在90以上。The control circuit 6 adjusts the driving current through the driving circuit, thereby controlling the luminous flux output of each light source, so that the LED lamps output the mixed white light obtained by mixing the corresponding luminous flux ratio, thereby outputting the mixed white light at the desired color temperature, and the luminous flux at the color temperature except The general color rendering index Ra and the special color rendering index R9 are all above 95, and all the color rendering indexes R1-R15 are above 90.

如下详细说明，如何得到光通量配比与混合后光源的色度参数之间的对应关系表。How to obtain the correspondence table between the luminous flux ratio and the chromaticity parameters of the mixed light sources will be described in detail as follows.

首先，光源的色温、显色指数及色品差等色度参数是由参与混光的四种颜色光的相对光谱功率分布及光功率配比决定的。混光后光的相对光谱功率分布S(λ)的计算如公式(1)所示：First of all, the chromaticity parameters such as color temperature, color rendering index and chromaticity difference of the light source are determined by the relative spectral power distribution and optical power ratio of the four colors of light participating in the light mixing. The calculation of the relative spectral power distribution S(λ) of light after light mixing is shown in formula (1):

S(λ)＝K₁*S₁(λ)+K₂*S₂(λ)+K₃*S₃(λ)+K₄*S₄(λ)(1)S(λ)＝K₁ *S₁ (λ)+K₂ *S₂ (λ)+K₃ *S₃ (λ)+K₄ *S₄ (λ)(1)

其中，S₁(λ)、S₂(λ)、S₃(λ)、S₄(λ)分别为参与混光的蓝绿光、暖白光、蓝光、红光的相对光谱功率分布，K₁、K₂、K₃、K₄为参与混光的蓝绿光、暖白光、蓝光、红光LED所对应的光功率配比。所以，要想确定混光后的光的色温和显色指数，需知道参与混光的LED的相对光谱功率分布及它们之间的光功率配比。如前所述，当使用的LED芯片和荧光粉的峰值波长，荧光粉的量确定时，参与混光的四种光的光谱功率分布即是确定的(如图5所示)。因此，设置不同的光功率配比组合，会得到不同的S(λ)，而S(λ)会最终影响色度参数的取值(由S(λ)计算色温，一般显色指数Ra，特殊显色指数R9、色品差和辐射效率等色度参数的公式是已知的)。综上所述，不同的光功率配比组合混合后光源有不同的色温、显色指数和色品差。Among them, S₁ (λ), S₂ (λ), S₃ (λ), and S₄ (λ) are the relative spectral power distributions of blue-green light, warm white light, blue light, and red light participating in light mixing, respectively, and K₁_._{_}_{_} Therefore, in order to determine the color temperature and color rendering index of the mixed light, it is necessary to know the relative spectral power distribution of the LEDs participating in the light mixing and the light power ratio between them. As mentioned above, when the peak wavelength of the used LED chip and phosphor, and the amount of phosphor are determined, the spectral power distribution of the four kinds of light participating in light mixing is determined (as shown in Figure 5). Therefore, setting different combinations of optical power ratios will result in different S(λ), and S(λ) will ultimately affect the value of the chromaticity parameter (calculated by S(λ) for color temperature, general color rendering index Ra, special The formulas of chromaticity parameters such as color rendering index R9, chromaticity difference and radiation efficiency are known). To sum up, the light sources with different light power ratio combinations have different color temperature, color rendering index and chromaticity difference after mixing.

如图7所示，为计算满足条件的光通量配比的方法流程图。如图7所示，包括如下步骤：1)接收蓝绿光、暖白光、蓝光和红光的相对光谱功率分布数据。2)对蓝绿光光功率配比K1、暖白光光功率配比K2、蓝光光功率配比K3和红光光功率配比K4进行赋值。3)计算混合后光的色度参数。具体地，即按照上述公式(1)计算混合光的相对光谱功率分布，然后根据混合后光的相对光谱功率分布计算混合后光源的色度参数，这些色度参数包括色温，一般显色指数Ra，全部显色指数R1～R15、色品差和辐射效率。根据混合后光的相对光谱功率分布S(λ)计算上述色度参数有已知的计算公式，在此不详细说明。4)判断是否满足如下条件：混合后光的色温在设定范围内(即可在设定值某一范围内波动，例如色温设定值为2700K，则色温在2695～2705K的范围内均可视为色温为2700K)，一般显色指数Ra≥95，特殊显色指数R9≥95，全部显色指数R1～R15均≥90，色品差△C＜0.0054，如果是，则进入步骤5)输出蓝绿光光功率配比K1、暖白光光功率配比K2、蓝光光功率配比K3和红光光功率配比K4当前的取值，以及对应的当前的色度参数值；如果否，则返回步骤2)重新赋值，重新计算，直至得到满足条件的蓝绿光光功率配比K1、暖白光光功率配比K2、蓝光光功率配比K3和红光光功率配比K4。As shown in FIG. 7 , it is a flow chart of a method for calculating a luminous flux ratio that satisfies the conditions. As shown in FIG. 7 , the method includes the following steps: 1) receiving relative spectral power distribution data of blue-green light, warm white light, blue light and red light. 2) Assign values to the blue-green light power ratio K1, the warm white light power ratio K2, the blue light power ratio K3, and the red light power ratio K4. 3) Calculate the chromaticity parameters of the mixed light. Specifically, the relative spectral power distribution of the mixed light is calculated according to the above formula (1), and then the chromaticity parameters of the mixed light source are calculated according to the relative spectral power distribution of the mixed light. These chromaticity parameters include color temperature, general color rendering index Ra , All color rendering index R1 ~ R15, chromaticity difference and radiation efficiency. There are known calculation formulas for calculating the above chromaticity parameters according to the relative spectral power distribution S(λ) of the mixed light, which will not be described in detail here. 4) Determine whether the following conditions are met: the color temperature of the mixed light is within the set range (that is, it can fluctuate within a certain range of the set value, for example, if the set value of the color temperature is 2700K, the color temperature can be within the range of 2695-2705K The color temperature is regarded as 2700K), the general color rendering index Ra≥95, the special color rendering index R9≥95, all the color rendering indices R1~R15 are ≥90, and the chromaticity difference △C<0.0054, if yes, go to step 5) Output the current values of blue-green light power ratio K1, warm white light power ratio K2, blue light power ratio K3 and red light power ratio K4, and the corresponding current chromaticity parameter values; if not, Return to step 2) to reassign and recalculate until the blue-green light power ratio K1, warm white light power ratio K2, blue light power ratio K3 and red light power ratio K4 are obtained.

得到满足条件的光功率配比K1、K2、K3和K4后，由于光功率配比与光通量配比之间有对应的关系，因此可根据光功率配比计算得到光通量配比。计算公式为：After obtaining the optical power ratios K1, K2, K3, and K4 that meet the conditions, since there is a corresponding relationship between the optical power ratio and the luminous flux ratio, the luminous flux ratio can be calculated according to the optical power ratio. The calculation formula is:

${η η}_{n no} = = \frac{{K K}_{n no} * * {LER LER}_{n no}}{{Σ Σ}_{n no = = 11}^{44} {K K}_{n no} * * {LER LER}_{n no}},, n no = = ((1,2,3,4 1,2,3,4)) - - - - - - ((22))$

$LER LER = = \frac{{a a}_{m m} {&Integral; &Integral;}_{λ λ} S S ((λ λ)) * * V V ((λ λ)) dλ dλ}{{&Integral; &Integral;}_{λ λ} S S ((λ λ)) dλ dλ} - - - - - - ((33))$

式中，η_n，K_n，LER_n分别对应的是各个光源(n＝1时对应蓝绿光、n＝2时对应暖白光、n＝3时对应蓝光、n＝4时对应红光)的光通量配比，光功率配比和辐射效率，a_m的值为683lm/W，V(λ)为视见函数，S(λ)为相应的光源的相对功率光谱分布数据。In the formula, η_n , K_n , and LER_n correspond to each light source (when n=1 corresponds to blue-green light, when n=2 corresponds to warm white light, when n=3 corresponds to blue light, and when n=4 corresponds to red light) The luminous flux ratio, optical power ratio and radiation efficiency, the value of a_m is 683lm/W, V(λ) is the visual function, and S(λ) is the relative power spectral distribution data of the corresponding light source.

由上述计算方法，即可得到各个光源的光通量配比与混合后光源的色温，一般显色指数Ra，特殊显色指数R9，全部显色指数R1～R15，色品差△C之间的对应关系，且色温在2700K～6500K的范围内可调，各色温下混合后光源的一般显色指数Ra≥95，特殊显色指数R9≥95，全部显色指数R1～R15均≥90，色品差△C＜0.0054。From the above calculation method, the correspondence between the luminous flux ratio of each light source and the color temperature of the mixed light source, the general color rendering index Ra, the special color rendering index R9, the entire color rendering index R1~R15, and the chromaticity difference △C can be obtained. relationship, and the color temperature can be adjusted within the range of 2700K ~ 6500K, the general color rendering index Ra≥95 of the light source after mixing at each color temperature, the special color rendering index R9≥95, all the color rendering index R1 ~ R15 are ≥90, the chromaticity The difference ΔC<0.0054.

仍然以选取的第一LED光源(由峰值波长为445nm的蓝光LED芯片激发510nm的绿光荧光粉)，第二LED光源(由峰值波长为445nm的蓝光LED芯片激发535nm绿光荧光粉和585nm橙光荧光粉组成的混合荧光粉)，第三LED光源(475nm的蓝光LED芯片)，第四LED光源(630nm红光LED芯片)，且第一LED光源发出的蓝绿光中蓝光所占的光功率比例为0.46，绿光所占的光功率比例为0.54；第二LED光源发出的暖白光中蓝光所占的光功率比例为0.06，绿光所占的光功率比例为0.31，橙光所占的光功率比例为0.63的情形为例说明，得到的混合后的白光的光通量配比与各个色度参数的对应关系如表1和表2所示，得到混合后白光的相对功率光谱分布如图8所示。Still with the selected first LED light source (excited by a blue LED chip with a peak wavelength of 445nm to excite a 510nm green phosphor), the second LED light source (excited by a blue LED chip with a peak wavelength of 445nm to excite a 535nm green phosphor and a 585nm orange phosphor) Mixed fluorescent powder composed of fluorescent powder), the third LED light source (475nm blue LED chip), the fourth LED light source (630nm red LED chip), and the blue-green light emitted by the first LED light source accounted for by blue light The power ratio is 0.46, and the ratio of green light is 0.54; the ratio of blue light in the warm white light emitted by the second LED light source is 0.06, the ratio of green light is 0.31, and the ratio of orange light is 0.06. The case where the optical power ratio of 0.63 is taken as an example, the corresponding relationship between the luminous flux ratio of the obtained mixed white light and each chromaticity parameter is shown in Table 1 and Table 2, and the relative power spectrum distribution of the mixed white light is shown in the figure 8.

表1混合后白光的Ra、△C和LER参数Table 1 Ra, △C and LER parameters of white light after mixing

表2混合后白光的R1～R15参数Table 2 R1～R15 parameters of white light after mixing

从表1和表2的数据可知，通过控制蓝绿光、暖白光、、蓝光、红光四种LED的光通量配比，即可得到配比下对应的色温的混合光，色温可以实现从2700K到6500K的范围可调，同时，除显色指数Ra和R9均在95以上之外，全部显色指数R1～R15也均在90以上，接近自然光。色品差△C均小于0.0054，甚至能达到小于等于0.0050，色品差性能很好。辐射光效(LER)在290lm/W以上，最高辐射光效(LER)为332lm/W。From the data in Table 1 and Table 2, it can be seen that by controlling the luminous flux ratio of blue-green light, warm white light, blue light, and red light, the mixed light with the corresponding color temperature can be obtained, and the color temperature can be realized from 2700K The range from 6500K to 6500K is adjustable. At the same time, in addition to the color rendering indexes Ra and R9 being above 95, all the color rendering indexes R1-R15 are also above 90, which is close to natural light. The chromaticity difference △C is all less than 0.0054, and can even be less than or equal to 0.0050, and the chromaticity difference performance is very good. The radiant light effect (LER) is above 290lm/W, and the highest radiant light effect (LER) is 332lm/W.

从图8中的混合后的白光的相对光谱功率分布图可知，该LED灯具可实现在2700K～6500K色温范围内的可调。From the relative spectral power distribution diagram of the mixed white light in Fig. 8, it can be known that the LED lamp can be adjusted within the color temperature range of 2700K-6500K.

本具体实施方式中LED灯具，采用四种LED光源，分别是采用蓝光LED芯片激发绿光荧光粉产生蓝绿光、蓝光LED芯片激发绿光荧光粉和橙光荧光粉组成的混合荧光粉产生暖白光、蓝光LED芯片产生蓝光以及红光LED芯片产生红光。通过一定范围的峰值波长组合以及各光分量的光功率比例的配合，从而得到特定光谱功率分布的四种光进行混光。混光时也仅涉及三种波段的LED芯片以及三种波段的荧光粉，混光方案简单易行。工作时，通过控制电路和驱动电路调节不同的LED光源的电流，从而调节不同LED光源的光通量输出，调节它们之间的光通量的配比，得到各个光通量配比下对应的色温下的混合白光，且白光的色度参数较好，除Ra和R9在95以上之外，R1～R15也均在90以上，接近自然光，显色指数好，同时色品差、辐射效率也较好，同时也能满足色温可调，本具体实施方式的LED灯具可满足高要求的应用。In this specific embodiment, the LED lamp adopts four kinds of LED light sources, which respectively use a blue LED chip to excite a green phosphor to produce blue-green light, and a blue LED chip to excite a mixed phosphor composed of a green phosphor and an orange phosphor to produce warm light. White light and blue light LED chips produce blue light and red light LED chips produce red light. Through the combination of a certain range of peak wavelengths and the coordination of the optical power ratio of each light component, four kinds of light with a specific spectral power distribution are obtained for light mixing. When mixing light, only LED chips of three bands and phosphors of three bands are involved, and the light mixing scheme is simple and easy to implement. When working, adjust the current of different LED light sources through the control circuit and drive circuit, thereby adjusting the luminous flux output of different LED light sources, adjusting the ratio of luminous flux between them, and obtaining the mixed white light at the corresponding color temperature under each luminous flux ratio. And the chromaticity parameters of white light are better, except that Ra and R9 are above 95, R1~R15 are also above 90, which is close to natural light, with good color rendering index, poor chromaticity, and good radiation efficiency. The color temperature can be adjusted, and the LED lamp in this specific embodiment can meet high-demand applications.

优选地，如图9所示，为LED灯具中LED光源的优选排列方式示意图。LED灯具中LED光源模块中多个LED光源按照圆形排列，且提供不同颜色的光的LED光源间隔设置。图9中所示为5组LED光源模组组成LED光源模块的情形，各组LED光源模块中沿圆形的弧形排列的依次是暖白光LED光源402，蓝光LED光源403、红光LED光源404、蓝绿光LED光源401。弧形排列的顺序不受图中限制，也可为其它顺序排列，例如蓝绿光LED光源401、暖白光LED光源402，蓝光LED光源403、红光LED光源404，只要整个圆形上不同颜色的光的LED光源间隔设置即可。Preferably, as shown in FIG. 9 , it is a schematic diagram of a preferred arrangement of LED light sources in LED lamps. Multiple LED light sources in the LED light source module of the LED lamp are arranged in a circle, and the LED light sources that provide light of different colors are arranged at intervals. Figure 9 shows the situation where 5 groups of LED light source modules form the LED light source module. The LED light source modules of each group are arranged along the arc of a circle in sequence: a warm white LED light source 402, a blue LED light source 403, and a red LED light source. 404 . The blue-green LED light source 401 . The order of the arc arrangement is not limited in the figure, and can also be arranged in other orders, such as blue-green LED light source 401, warm white LED light source 402, blue LED light source 403, red LED light source 404, as long as the entire circle has different colors The LED light sources of the light can be set at intervals.

进一步优选地，圆形的半径r为35mm。当圆形半径为35mm组成LED灯具，按照上述第一LED光源(由峰值波长为445nm的蓝光LED芯片激发510nm的绿光荧光粉)，第二LED光源(由峰值波长为445nm的蓝光LED芯片激发535nm绿光荧光粉和585nm橙光荧光粉组成的混合荧光粉)，第三LED光源(475nm的蓝光LED芯片)，第四LED光源(630nm红光LED芯片)的组合，以及第一LED光源发出的蓝绿光中蓝光所占的光功率比例为0.46，绿光所占的光功率比例为0.54；第二LED光源发出的暖白光中蓝光所占的光功率比例为0.06，绿光所占的光功率比例为0.31，橙光所占的光功率比例为0.63组成LED灯具。使用lighttools软件进行仿真模拟，控制电路按照如表1中所示的光通量配比换算相应的驱动电流输出至驱动电路，控制相应的LED光源发光工作，利用光源接收器接收LED灯具发出的光，光源接收器距离LED光源模块圆形阵列43mm，得到LED灯具在2700K～6500K的色温范围内的全彩色照度模拟设计光斑图。如图10a～10h所示，分别为2700K、3000K、3500K、4000K、4500K、5000K、5700K、6500K色温时的全彩色照度光斑图，从各光斑图可知，按照上述方式设置的LED灯具的照度较均匀。Further preferably, the radius r of the circle is 35mm. When the circular radius is 35mm to form an LED lamp, according to the above-mentioned first LED light source (excited by a blue LED chip with a peak wavelength of 445nm to excite a 510nm green phosphor), the second LED light source (excited by a blue LED chip with a peak wavelength of 445nm) 535nm green phosphor and 585nm orange phosphor), the combination of the third LED light source (475nm blue LED chip), the fourth LED light source (630nm red LED chip), and the first LED light source emit The optical power ratio of blue light in the blue-green light is 0.46, and the optical power ratio of green light is 0.54; the optical power ratio of blue light in the warm white light emitted by the second LED light source is 0.06, and that of green light is 0.06. The optical power ratio is 0.31, and the optical power ratio of orange light is 0.63 to form an LED lamp. Use lighttools software for simulation, the control circuit converts the corresponding drive current according to the luminous flux ratio shown in Table 1 and outputs it to the drive circuit, controls the corresponding LED light source to emit light, and uses the light source receiver to receive the light emitted by the LED lamp. The distance between the receiver and the circular array of LED light source modules is 43mm, and the full-color illuminance simulation design light spot diagram of the LED lamps within the color temperature range of 2700K-6500K is obtained. As shown in Figures 10a to 10h, they are full-color illuminance spot diagrams at 2700K, 3000K, 3500K, 4000K, 4500K, 5000K, 5700K, and 6500K color temperatures respectively. uniform.

更进一步优选地，LED灯具中反光罩为磨砂反光罩，基板上镀有反射膜，扩散板为PC扩散板、PMMA扩散板或磨砂玻璃中的一种，从而改善LED灯具的光斑效果，光利用率以及出射光的均匀度。Further preferably, the reflector in the LED lamp is a frosted reflector, the substrate is coated with a reflective film, and the diffuser is one of PC diffuser, PMMA diffuser or frosted glass, so as to improve the spot effect of the LED lamp and improve the light utilization. rate and the uniformity of the outgoing light.

以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下做出若干替代或明显变型，而且性能或用途相同，都应当视为属于本发明的保护范围。The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several substitutions or obvious modifications can be made without departing from the concept of the present invention, and the performance or application is the same, all should be considered as belonging to the protection scope of the present invention.

Claims

Translated fromChinese

1.一种LED光源模组，其特征在于：所述LED光源模组包括提供蓝绿光的第一LED光源，提供暖白光的第二LED光源，提供蓝光的第三LED光源和提供红光的第四LED光源；所述第一LED光源包括峰值波长为442～448nm的第一蓝光LED芯片，其上涂覆有峰值波长为500～520nm的绿光荧光粉，提供的所述蓝绿光中蓝光所占的光功率比例为0.33～0.49，绿光所占的光功率比例为0.51～0.67；所述第二LED光源包括峰值波长为442～448nm的第二蓝光LED芯片，其上涂覆有峰值波长为525～540nm的绿光荧光粉和580～600nm的橙光荧光粉，提供的所述暖白光中蓝光所占的光功率比例为0～0.1，绿光所占的光功率比例为0.25～0.33，橙光所占的光功率比例为0.58～0.67；所述第三LED光源包括峰值波长为470-490nm的第三蓝光LED芯片；所述第四LED光源包括峰值波长为627～635nm的第四红光LED芯片。1. An LED light source module, characterized in that: said LED light source module includes a first LED light source that provides blue-green light, a second LED light source that provides warm white light, a third LED light source that provides blue light, and a red light source The fourth LED light source; the first LED light source includes a first blue LED chip with a peak wavelength of 442-448nm, coated with a green phosphor powder with a peak wavelength of 500-520nm, to provide the blue-green light The proportion of optical power occupied by blue light is 0.33-0.49, and the proportion of optical power occupied by green light is 0.51-0.67; the second LED light source includes a second blue LED chip with a peak wavelength of 442-448nm, coated with There are green phosphors with a peak wavelength of 525-540nm and orange phosphors with a peak wavelength of 580-600nm, the optical power ratio of the blue light in the warm white light provided is 0-0.1, and the optical power ratio of the green light is 0.25-0.33, the proportion of optical power occupied by orange light is 0.58-0.67; the third LED light source includes a third blue LED chip with a peak wavelength of 470-490nm; the fourth LED light source includes a peak wavelength of 627-635nm The fourth red LED chip.

2.一种LED灯具，包括散热器、反光罩、扩散板和其上设置有LED光源模块的基板，所述LED光源模块包括至少一组LED光源模组，其特征在于：所述LED光源模组为如权利要求1所述的LED光源模组，所述LED灯具还包括四个驱动电路和控制电路；所述控制电路中存储有各个LED光源的光通量配比与混合后光源的色度参数之间的对应关系表，其中在各个光源的光通量配比下，各色度参数满足如下条件：色温在2700K～6500K范围内可调，各色温下光源的一般显色指数Ra≥95，特殊显色指数R9≥95，全部显色指数R1～R15均≥90，色品差△C＜0.0054；所述控制电路根据用户需要得到的混合后的色温选择相应的各个LED光源的光通量配比，根据各个LED光源的光通量配比确定各个LED光源的驱动电流，并将计算的驱动电流分别输出至相应的驱动电路；所述四个驱动电路分别将接收的驱动电流输出至相应的LED光源，驱动相应的LED光源发光。2. An LED lamp, comprising a radiator, a reflector, a diffusion plate and a substrate on which an LED light source module is arranged, and the LED light source module includes at least one group of LED light source modules, characterized in that: the LED light source module The LED light source module as claimed in claim 1, the LED lamp further includes four drive circuits and a control circuit; the control circuit stores the luminous flux ratio of each LED light source and the chromaticity parameters of the mixed light source The corresponding relationship table between each light source, in which under the luminous flux ratio of each light source, each chromaticity parameter meets the following conditions: the color temperature is adjustable within the range of 2700K ~ 6500K, the general color rendering index of the light source at each color temperature Ra≥95, and the special color rendering Index R9≥95, all color rendering indexes R1~R15 are ≥90, chromaticity difference △C<0.0054; the control circuit selects the corresponding luminous flux ratio of each LED light source according to the mixed color temperature obtained by the user, according to each The luminous flux ratio of the LED light source determines the drive current of each LED light source, and outputs the calculated drive current to the corresponding drive circuit; the four drive circuits respectively output the received drive current to the corresponding LED light source, and drive the corresponding The LED light source glows.

3.根据权利要求2所述的LED灯具，其特征在于：所述LED光源模组中四个LED光源按照正方形排列。3. The LED lamp according to claim 2, wherein the four LED light sources in the LED light source module are arranged in a square.

4.根据权利要求2所述的LED灯具，其特征在于：所述LED光源模块中多个LED光源按照圆形排列，且提供不同颜色的光的LED光源间隔设置。4 . The LED lamp according to claim 2 , wherein a plurality of LED light sources in the LED light source module are arranged in a circle, and LED light sources that provide light of different colors are arranged at intervals.

5.根据权利要求4所述的LED灯具，其特征在于：所述圆形的半径为35mm。5. The LED lamp according to claim 4, wherein the radius of the circle is 35mm.

6.根据权利要求2所述的LED灯具，其特征在于：所述四个驱动电路采用脉冲宽度调节(PWM)的方式调节驱动电流。6. The LED lamp according to claim 2, characterized in that: the four driving circuits adopt pulse width modulation (PWM) to adjust the driving current.

7.根据权利要求2所述的LED灯具，其特征在于：所述反光罩为磨砂反光罩。7. The LED lamp according to claim 2, wherein the reflector is a frosted reflector.

8.根据权利要求2所述的LED灯具，其特征在于：所述基板上镀有反射膜。8. The LED lamp according to claim 2, wherein a reflective film is coated on the substrate.

9.根据权利要求2所述的LED灯具，其特征在于：所述扩散板为PC扩散板、PMMA扩散板或磨砂玻璃。9. The LED lamp according to claim 2, wherein the diffusion plate is a PC diffusion plate, a PMMA diffusion plate or frosted glass.