Light source device and lamp

Abstract

The utility model provides a light source device and a lamp, the light source device comprises a support and a plurality of light-emitting chips, and the support is provided with a first electrode and a second electrode; the plurality of light-emitting chips are arranged on the bracket, the plurality of light-emitting chips comprise a plurality of blue light chips and at least one purple light chip, the plurality of blue light chips are used for exciting a plurality of blue light with different peak wavelengths, and the plurality of purple light chips are used for exciting blue light with different peak wavelengths from the plurality of blue light; wherein the plurality of light-emitting chips are respectively arranged on the first electrode and the second electrode, at least one of the plurality of light-emitting chips is arranged on the first electrode, and at least one of the plurality of light-emitting chips is arranged on the second electrode; on one hand, the purple light part of the spectrum is compensated through the purple light chip, the spectrum continuity can be enhanced, and the color rendering index and the saturated blue index can be improved; and on the other hand, blue light with different peak wavelengths is excited in a segmented manner through the plurality of blue light chips, so that the energy peak value of the blue light can be dispersed, and the blue light harm can be reduced.

Description

Technical Field

[0001] This application belongs to the field of lighting technology, and in particular relates to a light source device and a lamp. Background Technology

[0002] Light-emitting diodes (LEDs) have garnered significant attention in the lighting field due to their high efficiency, energy saving, and environmental friendliness. With technological advancements, LEDs are gradually replacing traditional light sources in commercial, industrial, and various lighting scenarios, and full-spectrum LED lighting technology continues to develop.

[0003] Full-spectrum illumination specifically refers to a spectral curve that includes ultraviolet, visible, and infrared light, with the proportions of red, green, and blue in the visible light portion approximating sunlight, and a color rendering index close to 100. In related technologies, light emission is often achieved by using light-emitting chips to excite phosphors; however, current light sources have poor color rendering performance. Utility Model Content

[0004] The purpose of this application is to provide a light source device and lamp that aims to solve the problem of poor color rendering performance of lighting products in traditional technology.

[0005] The first aspect of this application provides a light source device, comprising:

[0006] A support, on which a first electrode and a second electrode are disposed;

[0007] Multiple light-emitting chips are disposed on the support. The multiple light-emitting chips include multiple blue light chips and at least one violet light chip. The multiple blue light chips are used to excite multiple blue light with different peak wavelengths, and the multiple violet light chips are used to excite blue light with different peak wavelengths than the multiple blue light chips.

[0008] The plurality of light-emitting chips are disposed on the first electrode and the second electrode, and at least one of the plurality of light-emitting chips is disposed on the first electrode and at least one of the chips is disposed on the second electrode.

[0009] In some embodiments of this application, the area of ​​the first electrode is smaller than the area of ​​the second electrode, and the plurality of light-emitting chips includes at least three blue light-emitting chips;

[0010] One of the at least three blue light chips is disposed on the first electrode, and the remaining of the at least three blue light chips and the violet light chip are disposed on the second electrode;

[0011] Alternatively, the at least three blue light chips are disposed on the second electrode, and the violet light chip is disposed on the first electrode.

[0012] In some embodiments of this application, a enclosure structure is formed on the bracket, the enclosure structure encloses and forms a receiving groove, the first electrode and the second electrode are spaced apart on the bottom wall of the receiving groove, and the first electrode and the second electrode are insulated from each other.

[0013] In some embodiments of this application, the light-emitting chip disposed on the first electrode extends along a first direction, the light-emitting chip disposed on the second electrode extends along a second direction, and a plurality of light-emitting chips disposed on the second electrode are spaced apart along the second direction; the first direction is perpendicular to the second direction.

[0014] In some embodiments of this application, the light source device further includes a fluorescent adhesive layer, which covers the light-emitting surface of the plurality of light-emitting chips.

[0015] In some embodiments of this application, the plurality of light-emitting chips include a first blue light chip, a second blue light chip, a third blue light chip, and a violet light chip. The first blue light chip is used to excite blue light with a peak wavelength of a, the second blue light chip is used to excite blue light with a peak wavelength of b, the third blue light chip is used to excite blue light with a peak wavelength of c, and the violet light chip is used to excite violet light with a peak wavelength of d.

[0016] Among them, 435nm≤a≤440nm, 450nm≤b≤455nm, 465nm≤c≤470nm, and 410nm≤d≤415nm.

[0017] In some embodiments of this application, the plurality of light-emitting chips are connected in series and / or in parallel via conductive leads.

[0018] In some embodiments of this application, the difference U between the forward operating voltages of the first blue light chip, the second blue light chip, the third blue light chip, and the violet light chip satisfies the following condition: U≤5%.

[0019] In some embodiments of this application, the peak intensity ratio of the violet light chip, the first blue light chip, the second blue light chip, and the third blue light chip satisfies the following condition: I p1 :I p2 :I p3 :I p4 =(0.8-1):(1-1.2):(1-1.2):(0.6-0.8).

[0020] A second aspect of this application also provides a lighting fixture, including the aforementioned light source device.

[0021] The beneficial effects of this utility model embodiment compared with the prior art are as follows: In the above-mentioned light source device and lamp, the light source device includes a bracket and multiple light-emitting chips. A first electrode and a second electrode are disposed on the bracket. The multiple light-emitting chips are disposed on the bracket, and the multiple light-emitting chips include multiple blue light chips and at least one violet light chip. The multiple blue light chips are used to excite multiple blue lights with different peak wavelengths, and the multiple violet light chips are used to excite blue lights with peak wavelengths different from the multiple blue lights. The multiple light-emitting chips are disposed on the first electrode and the second electrode, and at least one of the multiple light-emitting chips is disposed on the first electrode and at least one of the multiple light-emitting chips is disposed on the second electrode. In this application, on the one hand, the violet light chip compensates for the violet part of the spectrum, which is beneficial to enhance the spectral continuity and thus improve the color rendering index and the saturated blue index. On the other hand, the multiple blue light chips excite blue light with different peak wavelengths in segments, which is beneficial to disperse the blue light energy peak and thus reduce the harm of blue light. Furthermore, in this application, the same phosphor excited by blue light chips with different emission wavelengths can have different excitation wavelengths, which can achieve complementarity to enhance the spectral continuity and thus improve the color rendering index. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a light source device provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of a light source device provided in another embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a light source device provided in another embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the structure of a light source device provided in another embodiment of this application;

[0026] Figure 5 The spectrum of a light source device provided in an embodiment of this application.

[0027] Specific element symbol explanation: 100-support, 110-first electrode, 120-second electrode, 130-enclosure structure, 200-light-emitting chip, 210-violet light chip, 220-blue light chip, 221-first blue light chip, 222-second blue light chip, 223-third blue light chip, a-first direction, b-second direction. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] It's important to understand that in the modern lighting field, light-emitting diodes (LEDs) have attracted significant attention from researchers and industry professionals worldwide due to their outstanding advantages in high efficiency, energy saving, and environmental friendliness. With continuous technological advancements, LED lighting technology has matured rapidly and is now widely used in numerous fields, including commercial lighting, industrial lighting, outdoor lighting, indoor lighting, and special lighting, gradually becoming the mainstream lighting source and successfully replacing traditional incandescent and fluorescent lamps. In this development process, full-spectrum LED lighting technology, as a cutting-edge research direction, has also achieved remarkable results.

[0033] Full-spectrum lighting refers to lighting whose spectrum encompasses ultraviolet, visible, and infrared light. In the visible light portion, the proportions of red, green, and blue light are similar to those in sunlight, with a color rendering index (CRI) extremely close to 100. The CRI is a crucial indicator of a light source's ability to accurately reproduce the true colors of objects. A higher CRI means that the color of an object illuminated by this light source is closer to its true color under natural light. Therefore, the goal of full-spectrum LED lighting technology is to create lighting sources that highly simulate natural light, providing people with a more comfortable, healthy, and realistic lighting environment.

[0034] Currently, most related technologies use light-emitting chips to excite phosphors to achieve light emission. This technology works by using light of a specific wavelength emitted by the chip to excite the phosphor, causing it to produce different colors of light. These colors mix together to form the white light we see. However, this conventional light emission method has some problems, the most prominent being the poor color rendering performance of the current light source spectrum.

[0035] In practical applications, limitations imposed by the properties of phosphor materials and the spectral distribution of light-emitting chips in existing technologies result in numerous shortcomings in color rendering. For example, in certain scenarios, the colors of objects may deviate when using existing LED lighting, especially in places with high color accuracy requirements, such as art galleries, photography studios, and high-end shopping malls, where this poor color rendering performance is particularly prominent. This not only affects people's judgment of the true colors of objects but also limits the application and promotion of LED lighting in some high-end fields. Furthermore, poor color rendering performance may also have potential impacts on human visual health; prolonged exposure to such lighting environments can easily lead to eye fatigue.

[0036] Based on this, this application improves the relevant light source devices and lamps.

[0037] Please see Figure 1 , Figure 1 A schematic diagram of the structure of the light source device provided in this embodiment is shown. The light source device of this embodiment includes a bracket 100 and a plurality of light-emitting chips 200; a first electrode 110 and a second electrode 120 are disposed on the bracket 100; the plurality of light-emitting chips 200 are disposed on the bracket 100, and the plurality of light-emitting chips 200 include a plurality of blue light chips 220 and at least one violet light chip 210, wherein the plurality of blue light chips 220 are used to excite a plurality of blue light with different peak wavelengths, and the plurality of violet light chips 210 are used to excite blue light with a different peak wavelength from the plurality of blue light; wherein the plurality of light-emitting chips 200 are respectively disposed on the first electrode 110 and the second electrode 120, and at least one of the plurality of light-emitting chips 200 is disposed on the first electrode 110 and at least one of the plurality of light-emitting chips 200 is disposed on the second electrode 120.

[0038] It should be explained that the support structure 100, as the supporting structure of the entire device, typically possesses good mechanical strength and heat dissipation performance. Its material can be selected from high thermal conductivity PCT, EMC, and ceramic materials, which can better withstand ultraviolet light irradiation and prevent changes in the physicochemical properties of the support material. Secondly, it ensures that the heat generated by the light-emitting chip 200 during operation can be dissipated in a timely manner, maintaining stable operation of the device. The first electrode 110 and the second electrode 120 are made of metal materials with excellent conductivity, such as copper or silver, to ensure good current transmission. The electrodes are designed in a long strip shape and are symmetrically distributed on the surface of the support 100. This layout is beneficial for the uniform distribution of the subsequent light-emitting chip 200 and the rational distribution of current.

[0039] Understandably, by precisely controlling the chip growth process and doping concentration, the peak emission wavelength of different blue light chips 220 can be distributed within the range of 440nm-480nm to meet the blue light wavelength requirements of different application scenarios. Specifically, one of the first electrode 110 and the second electrode 120 is a positive electrode, and the other is a negative electrode.

[0040] Current light source devices do not have outstanding color rendering performance. However, this application addresses this issue by using a violet light chip 210 to compensate for the violet portion of the spectrum, thereby enhancing spectral continuity and improving the color rendering index and blue saturation index. From the perspective of spectral continuity, when the violet light chip 210 emits violet light of a specific wavelength, it effectively fills the missing violet portion in the 380-440nm wavelength band. With the violet light chip 210 completing the violet portion of the spectrum, the light source can more comprehensively and accurately excite various color reflections on the object's surface when illuminating it, resulting in more realistic and vibrant colors. For example, in art exhibitions, using the light source with the violet light chip 210 from this application will make the colors in paintings appear more vivid and delicate, allowing viewers to appreciate the color layers and details the artist intended to express, greatly enhancing the viewing experience.

[0041] Furthermore, this application utilizes precise wavelength control and appropriate spectral matching to excite phosphor powder with violet light from a violet chip. Compared to the blue light from a blue chip, this excitation has a wider half-width, which is beneficial for improving the saturation blue index. This allows the light source to more realistically reproduce the saturation and color depth of blue objects, providing a superior lighting solution for scenarios requiring high accuracy in blue colors, such as high-end photography studios shooting blue products and ophthalmic medical lighting.

[0042] Current light source devices pose a significant blue light hazard because excessively high blue light peaks not only disrupt the spectral distribution of the light source but also lead to higher levels of blue light pollution. Blue light pollution refers to the potential damage blue light can cause to the human retina. Long-term exposure to lighting environments with high blue light pollution increases the risk of eye fatigue, myopia, and even retinal disease. This application addresses this issue by using multiple blue light chips 220 to excite blue light at different peak wavelengths in segments, thus dispersing the blue light energy peaks. For example, the emission peak wavelengths of these blue light chips 220 are distributed in the range of 440nm-480nm, specifically set to 440nm, 455nm, and 465nm. When multiple blue light chips 220 work together, they each emit blue light of different wavelengths. These blue lights superimpose, causing the blue light peaks to become broader rather than concentrated in a narrow range. Therefore, by using multiple blue light chips 220 to excite blue light at different peak wavelengths in segments, it is beneficial to disperse the blue light energy peaks, thereby reducing blue light pollution.

[0043] In some embodiments of this application, please refer to Figure 2 , Figure 2 A schematic diagram of the structure of the light source device provided in this embodiment is shown; the area of ​​the first electrode 110 in this embodiment is smaller than the area of ​​the second electrode 120, and the plurality of light-emitting chips 200 include at least three blue light chips 220; one of the at least three blue light chips 220 is disposed on the first electrode 110, and the rest of the at least three blue light chips 220 and the violet light chip 210 are disposed on the second electrode 120.

[0044] In some embodiments, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of the light source device provided in this embodiment is shown; at least three blue light chips 220 are disposed on the second electrode 120 and the violet light chip 210 is disposed on the first electrode 110.

[0045] Please refer to the embodiments described in this application. Figure 1 In this embodiment, a baffle structure 130 is formed on the bracket 100. The baffle structure 130 encloses and forms a receiving groove. The first electrode 110 and the second electrode 120 are spaced apart on the bottom wall of the receiving groove, and the first electrode 110 and the second electrode 120 are insulated from each other.

[0046] It should be explained that the receiving groove enclosed by the enclosure structure 130 provides a stable space for components such as the light-emitting chip 200 and the phosphor. In the manufacturing process, the phosphor is filled into the receiving groove. The enclosure structure 130 restricts the flow range of the phosphor, ensuring that it is evenly distributed on the light-emitting chip 200, preventing overflow or uneven distribution. This is crucial for achieving stable and high-quality light mixing. The evenly distributed phosphor can interact fully with light of different wavelengths, thereby improving the color rendering index and luminous efficacy of the light source.

[0047] In some embodiments, the enclosure structure 130 forms a receiving groove that is one of a square structure, a circular structure, or an octagonal structure.

[0048] Please refer to the embodiments described in this application. Figure 1 In this embodiment, the light-emitting chip 200 disposed on the first electrode 110 extends along a first direction a, and the light-emitting chip 200 disposed on the second electrode 120 extends along a second direction b. Multiple light-emitting chips 200 disposed on the second electrode 120 are spaced apart along the second direction b. The first direction a is perpendicular to the second direction b. The extension directions of the light-emitting chips can be rationally distributed according to the electrode area and the chip shape and size, thus saving overall space and ensuring the heat dissipation performance of the structure.

[0049] In some embodiments of this application, the light source device further includes a fluorescent adhesive layer, which covers the light-emitting surface of the plurality of light-emitting chips 200.

[0050] In some embodiments, the fluorescent adhesive layer includes a phosphor group and a transparent adhesive, wherein the phosphor group is selected from yellow-green phosphor with a peak wavelength of 520nm to 550nm and red phosphor with a peak wavelength of 630nm to 650nm.

[0051] Understandably, the 520-550nm yellow-green phosphor and the 630-650nm red phosphor reduce the mutual absorption effect between phosphors, and this phosphor combination has a wider excitation spectrum half-width, making it more suitable for excitation with increased blue light peak width. Using the above-mentioned fluorescent adhesive layer, the spectral efficacy in this application can reach 105 lm / W, the color rendering index Ra is as high as 99, and R9-R15 all exceed 95.

[0052] In some embodiments of this application, please refer to Figure 4 , Figure 4A schematic diagram of the structure of the light source device provided in this embodiment is shown. The plurality of light-emitting chips 200 in this embodiment include a first blue light chip 221, a second blue light chip 222, a third blue light chip 223, and a violet light chip 210. The first blue light chip 221 is used to excite blue light with a peak wavelength of a, the second blue light chip 222 is used to excite blue light with a peak wavelength of b, the third blue light chip 223 is used to excite blue light with a peak wavelength of c, and the violet light chip 210 is used to excite violet light with a peak wavelength of d; wherein 435nm≤a≤440nm, 450nm≤b≤455nm, 465nm≤c≤470nm, and 410nm≤d≤415nm. Thus, the violet light chip 210 in this application can increase the saturated blue index to above 95.

[0053] In some embodiments of this application, multiple light-emitting chips 200 are connected in series and / or in parallel via conductive leads. For example... Figure 1 As shown, multiple light-emitting chips 200 are connected in series.

[0054] In some embodiments of this application, the difference U between the forward operating voltages of the first blue light chip 221, the second blue light chip 222, the third blue light chip 223, and the violet light chip 210 satisfies the following condition: U≤5%. This helps to avoid current imbalance when multiple chips are connected in series / parallel, and ensures the light emission stability of each chip and the uniformity of the spectrum superposition.

[0055] In some embodiments of this application, the peak intensity ratio of the violet light chip 210, the first blue light chip 221, the second blue light chip 222, and the third blue light chip 223 satisfies the following condition: I p1 :I p2 :I p3 :I p4 = (0.8-1):(1-1.2):(1-1.2):(0.6-0.8). This effectively disperses the blue light radiation flux and reduces the harm of blue light.

[0056] In some embodiments of this application, a first blue light chip 221, a second blue light chip 222, a third blue light chip 223, and a violet light chip 210 are connected in series on a support 100 and connected to the above multiple light-emitting chips 200 and the first electrode 110 and the second electrode 120 through metal leads to form a conductive circuit. Applying current to the first electrode 110 and the second electrode 120 can cause the violet light chip 210 and the blue light chip 220 to excite the phosphor to generate mixed light (white light).

[0057] Specifically, the peak wavelength of the violet light chip 210 is 415nm, the peak wavelength of the first blue light chip 221 is 440nm, the peak wavelength of the second blue light chip 222 is 455nm, and the peak wavelength of the third blue light chip 223 is 465nm; the phosphor includes a yellow phosphor and a red phosphor. The preparation method in this embodiment includes: weighing the yellow-green phosphor ((Y,Lu)3(Al,Ga)5O 12 :Ce 3+ 6.34g; Weigh out the first red powder ((Sr,Ca)AlSiN3:Eu) 2+ 1.97g; The phosphor mixture is first mixed with a transparent silicone material by centrifugal stirring, and then combined with an LED chip in one of the above-mentioned encapsulation structures to produce a finished LED light source. Figure 5 As shown, the light source device prepared in this embodiment has a color rendering index Ra of 99, R9 of 99, R12 of 95, luminous efficacy of 105 lm / W, and color temperature of 4000 K.

[0058] Furthermore, in order to better implement the light source device in any of the above embodiments, this application also provides a lamp that includes the above-described light source device.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0060] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0061] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0062] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0063] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A light source device, characterized by comprising: The light source device comprises: a support provided with a first electrode and a second electrode; a plurality of light emitting chips provided on the support, the plurality of light emitting chips comprising a plurality of blue light chips for exciting a plurality of blue light with different peak wavelengths and at least one violet light chip for exciting violet light with a peak wavelength different from the peak wavelengths of the plurality of blue light; wherein the plurality of light emitting chips are arranged on the first electrode and the second electrode, and at least one of the plurality of light emitting chips is arranged on the first electrode and at least one of the plurality of light emitting chips is arranged on the second electrode.

2. The light source device according to claim 1, characterized by The area of the first electrode is smaller than the area of the second electrode, and the plurality of light emitting chips comprises at least three blue light chips; one of the at least three blue light chips is arranged on the first electrode, and the remaining of the at least three blue light chips and the violet light chip are arranged on the second electrode; alternatively, the at least three blue light chips are arranged on the second electrode, and the violet light chip is arranged on the first electrode.

3. The light source device according to claim 2, characterized by The support is provided with a surrounding structure forming a containing groove, the first electrode and the second electrode are arranged on the bottom wall of the containing groove and are insulated from each other.

4. The light source device according to claim 2, wherein The light emitting chips arranged on the first electrode are arranged along a first direction, the light emitting chips arranged on the second electrode are arranged along a second direction, and the plurality of light emitting chips arranged on the second electrode are arranged along the second direction and are spaced apart from each other; the first direction is perpendicular to the second direction.

5. The light source device according to any one of claims 1 to 4, wherein The light source device further comprises a fluorescent glue layer covering the light emitting surfaces of the plurality of light emitting chips.

6. The light source device according to any one of claims 1 to 4, wherein The plurality of light emitting chips comprises a first blue light chip for exciting blue light with a peak wavelength of a, a second blue light chip for exciting blue light with a peak wavelength of b, a third blue light chip for exciting blue light with a peak wavelength of c, and a violet light chip for exciting violet light with a peak wavelength of d; wherein 435nm≤a≤440nm, 450nm≤b≤455nm, 465nm≤c≤470nm, and 410nm≤d≤415nm.

7. The light source device according to claim 6, wherein The plurality of light emitting chips are arranged in series and / or in parallel through conductive leads.

8. The light source device according to claim 6, wherein The difference U of the forward working voltages of the first blue light chip, the second blue light chip, the third blue light chip, and the violet light chip satisfies the following condition: U≤5%.

9. The light source device according to claim 6, wherein The peak intensity ratio of the violet chip, the first blue chip, the second blue chip and the third blue chip satisfies the following condition: I p1 : I p2 : I p3 : I p4 =(0.8-1):(1-1.2):(1-1.2):(0.6-0.8).

10. A luminaire characterized by, The light source device comprises any one of claims 1 to 9.

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