Light source modules and lamps

Abstract

A light source module and a luminaire are disclosed. The light source module includes at least one multi-channel light-emitting unit. Each multi-channel light-emitting unit includes multiple individually controlled LED light sources according to their light-emitting channels. According to their spectral peak wavelengths, the LED light sources include at least a first monochromatic LED light source with a first spectral peak wavelength, a second monochromatic LED light source with a second spectral peak wavelength, a third monochromatic LED light source with a third spectral peak wavelength, and a first composite LED light source with at least a fourth spectral peak wavelength. The first, second, and third spectral peak wavelengths are located in the first, second, and third spectral ranges, respectively, and the fourth spectral peak wavelength is different from all three spectral peak wavelengths. The first composite LED light source is a non-white light source, and its spectral color coordinates are located in the region above the Planck blackbody radiation curve in the CIE 1931-xy chromaticity diagram. This invention can improve lighting performance and user experience.

Description

Technical Field

[0001] The present invention relates to the field of optical lighting technology, and in particular to a light source module and a lamp. Background Technology

[0002] With the advancement of technology and changes in work methods, the development of various semiconductor lighting technologies, such as LED (light-emitting diode) light sources and semiconductor lasers, has opened up new technological avenues for various applications.

[0003] LED light source is a solid-state semiconductor device that can convert electrical energy into visible light. It uses LED technology as the light source and can directly convert electrical energy into light energy. It has the advantages of high brightness, green and environmentally friendly, low energy consumption, long life, intelligent operation, and stable performance. It can also provide a variety of light sources in different spectral bands. Therefore, it has been widely studied and applied in lighting, display and other fields.

[0004] Currently, with the increasing demands for light quality and the diverse needs for light source selection in different application scenarios, the spectrum of lighting and the effects of visual and non-visual effects caused by the spectrum have attracted widespread attention, which in turn has placed higher demands on the spectral adjustability of lighting equipment. Summary of the Invention

[0005] The problem solved by the embodiments of the present invention is to provide a light source module and lamp to achieve a spectrally adjustable light environment, so as to improve lighting performance and user experience.

[0006] To address the aforementioned problems, this invention provides a light source module comprising at least one multi-channel light-emitting unit. Each multi-channel light-emitting unit includes multiple individually controlled LED light sources according to the light-emitting channel. Furthermore, according to the spectral peak wavelength, the LED light sources include at least a first monochromatic LED light source with a first spectral peak wavelength, a second monochromatic LED light source with a second spectral peak wavelength, a third monochromatic LED light source with a third spectral peak wavelength, and a first composite LED light source with at least a fourth spectral peak wavelength. The visible light spectral wavelength range includes a first spectral interval, a third spectral interval, and a second spectral interval located between the first and third spectral intervals. The first, second, and third spectral peak wavelengths are respectively located within the first, second, and third spectral intervals. The fourth spectral peak wavelength is different from all three spectral peak wavelengths. The first composite LED light source is a non-white light source, and its spectral color coordinates are located in the region above the Planck blackbody radiation curve in the CIE 1931-xy chromaticity diagram.

[0007] Accordingly, this embodiment of the invention also provides a lighting fixture, including: a light source module provided in this embodiment of the invention, wherein the number of light source modules is one or more; and a control module coupled to the light source module, used to individually control the luminous intensity of the LED light source corresponding to each channel in the multi-channel light-emitting unit.

[0008] Compared with the prior art, the technical solution of the embodiments of the present invention has the following advantages:

[0009] The light source module provided in this embodiment of the invention includes at least one multi-channel light-emitting unit. Each multi-channel light-emitting unit includes multiple individually controlled LED light sources according to the light-emitting channels. According to the spectral peak wavelength, the LED light sources include a first monochromatic LED light source with a first spectral peak wavelength, a second monochromatic LED light source with a second spectral peak wavelength, a third monochromatic LED light source with a third spectral peak wavelength, and a first composite LED light source with at least a fourth spectral peak wavelength. The first, second, and third spectral peak wavelengths are located in different spectral intervals within the visible light spectrum wavelength range. The fourth spectral peak wavelength is different from all three wavelengths. The first composite LED light source is a non-white light source, and its spectral color coordinates are located on the Planckian locus / blackbody curve in the CIE1931-xy chromaticity diagram. In the region above the locus), this embodiment of the invention selects three monochromatic LED light sources from the entire visible light wavelength range to meet the spectral requirements of short, medium, and long wavelengths respectively. Simultaneously, a first composite LED light source, which is different from the first, second, and third spectral peak wavelengths and is a non-white light source, is also selected. The spectrum of the first composite LED light source covers a large visible light spectral band. This first composite LED light source can serve as the basis for light mixing, thus, when combined with the three monochromatic LED light sources that respectively meet the requirements of short, medium, and long wavelengths, it is easy to obtain a larger and more continuous spectral adjustment range. This allows for the realization of multiple tunable spectra, i.e., the creation of light environments with different spectra. Furthermore, since the spectral color coordinates of the first composite LED light source are located above the Planck blackbody radiation curve in the CIE1931-xy chromaticity diagram, the four non-white light sources can be used... By mixing white LED light sources, a large color gamut can be covered with a small number of light sources, and the color coordinates can be adjusted within this gamut. At the same time, because the spectral energy distribution of the four non-white LED light sources covers a large and continuous visible light wavelength range, the adjustment precision is high, and the spectral energy distribution can be changed continuously through mixing. In addition, spectral indicators such as color rendering index can be adjusted within a wide range, making the light source module compatible with more functions (for example, it can be used in a spectral adjustment system to achieve light environments with different spectra under a fixed set of hardware conditions), and can meet various lighting needs (for example, the need for high color rendering, different rhythmic effect stimulus intensity requirements, and combinations of multiple lighting indicator requirements), thereby improving lighting performance and user experience (for example, while meeting the user's visual needs, providing the user with a high-quality light environment that conforms to rhythmic health). Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of the light source module of the present invention;

[0011] Figure 2 This is a schematic diagram showing the color coordinates of the first monochromatic LED light source, the second monochromatic LED light source, the third monochromatic LED light source, and the first composite LED light source located on the CIE1931-xy chromaticity diagram.

[0012] Figure 3 This is a relative spectral range diagram of each LED light source in one embodiment of the light source module of the present invention;

[0013] Figure 4 This is a graph showing the spectral luminous efficiency response of visual melanin.

[0014] Figure 5 This is a schematic diagram of another embodiment of the light source module of the present invention;

[0015] Figure 6 This is a schematic diagram of another embodiment of the light source module of the present invention;

[0016] Figure 7 This is a schematic diagram of another embodiment of the light source module of the present invention;

[0017] Figure 8 This is a functional block diagram of an embodiment of the lamp of the present invention. Detailed Implementation

[0018] As can be seen from the background technology, with the continuous expansion of people's lighting needs, higher requirements are also put forward for lighting effects.

[0019] To address the aforementioned technical problem, this invention provides a light source module comprising at least one multi-channel light-emitting unit. Each multi-channel light-emitting unit includes multiple individually controlled LED light sources according to the light-emitting channels. Furthermore, according to the spectral peak wavelength, the LED light sources include at least a first monochromatic LED light source with a first spectral peak wavelength, a second monochromatic LED light source with a second spectral peak wavelength, a third monochromatic LED light source with a third spectral peak wavelength, and a first composite LED light source with at least a fourth spectral peak wavelength. The visible light spectral wavelength range includes a first spectral interval, a third spectral interval, and a second spectral interval located between the first and third spectral intervals. The first, second, and third spectral peak wavelengths are respectively located within the first, second, and third spectral intervals. The fourth spectral peak wavelength is different from all three spectral peak wavelengths. The first composite LED light source is a non-white light source, and its spectral color coordinates are located in the region above the Planck blackbody radiation curve in the CIE 1931-xy chromaticity diagram.

[0020] This invention selects three monochromatic LED light sources located in different spectral ranges across the entire visible light wavelength range to meet the spectral requirements of short, medium, and long wavelengths, respectively. It also selects a first composite LED light source with different peak wavelengths and which is not a white light source. The spectrum of this first composite LED light source covers a large visible light spectral range and can serve as the basis for light mixing. By combining it with the monochromatic LED light sources that meet the requirements of short, medium, and long wavelengths, a larger and more continuous spectral adjustment range can be easily obtained, thus enabling the realization of multiple tunable spectra, i.e., achieving light environments with different spectra. Furthermore, since the spectral color coordinates of the first composite LED light source are located above the Planck blackbody radiation curve in the CIE 1931-xy chromaticity diagram, therefore… By using the four types of LED light sources for light mixing, a large color gamut can be covered with a small number of light sources, and the color coordinates can be adjusted within this gamut. Furthermore, because the spectral energy distribution of the four non-white LED light sources covers a large and continuous visible light wavelength range, the adjustment precision is high. Light mixing allows for relatively continuous changes in the spectral energy distribution. In addition, spectral indicators such as the color rendering index can be adjusted over a wide range, making the light source module compatible with many functions (e.g., it can be used in a spectral adjustment system to create different spectral environments under a fixed set of hardware conditions). This meets various lighting needs (e.g., high color rendering requirements, different rhythmic effect stimulus intensity requirements, and combinations of multiple lighting indicator requirements), thereby improving lighting performance and user experience.

[0021] To make the above-mentioned objects, features and advantages of the embodiments of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of an embodiment of the light source module of the present invention.

[0023] The light source module 10 includes at least one multi-channel light-emitting unit 20. According to the light-emitting channel, each multi-channel light-emitting unit 20 includes a variety of individually controlled LED light sources 20L. According to the spectral peak wavelength, the LED light source 20L includes a first monochromatic LED light source 20a with a first spectral peak wavelength, a second monochromatic LED light source 20b with a second spectral peak wavelength, a third monochromatic LED light source 20c with a third spectral peak wavelength, and a first composite light LED light source 20d with at least a fourth spectral peak wavelength.

[0024] In the light-emitting unit 20, each LED light source 20L emits visible light. The spectral wavelength range of the visible light has three intervals, including a first spectral interval, a third spectral interval, and a second spectral interval located between the first and third spectral intervals. The first, second, and third spectral peak wavelengths are located within the first, second, and third spectral intervals, respectively. The fourth spectral peak wavelength is different from all three spectral peak wavelengths. The first composite LED light source 20d is a non-white light source, and the spectral color coordinates of the first composite LED light source 20d are located on the Planck blackbody radiation curve L in the CIE 1931-xy chromaticity diagram (CIE xy Chromaticity Diagram). Figure 2 The area above the chromaticity diagram (as shown). Here, the chromaticity diagram is a two-dimensional image coordinate system that represents the chromaticity information of various light sources with points at different locations. It was established by the International Commission on Illumination (CIE) in 1931, and is therefore also called the CIE1931-xy chromaticity diagram.

[0025] It should be noted that the wavelength range of visible light visible to the human eye is approximately 380 to 780 nm. Here, the wavelength range of visible light is divided into three intervals: the first spectral interval, the third spectral interval, and the second spectral interval located between the first and third spectral intervals, with the wavelengths increasing sequentially from the first to the third spectral interval.

[0026] In this embodiment, by placing the first spectral peak wavelength, the second spectral peak wavelength, and the third spectral peak wavelength in the first spectral interval, the second spectral interval, and the third spectral interval, respectively, that is, by selecting the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, and the third monochromatic LED light source 20c from three different spectral intervals, it is easy to meet the spectral requirements of the short wavelength band, the medium wavelength band, and the long wavelength band in the visible light spectrum wavelength range, so as to cover a large color gamut range with a small number of light sources, and to achieve adjustable color coordinates within the color gamut range.

[0027] Specifically, the peak wavelength range of the first spectral interval is 380nm to 480nm, the peak wavelength range of the third spectral interval is 610nm to 780nm, and the peak wavelength of the second spectral interval is between 480nm and 610nm. Among them, 380nm to 480nm is the short wavelength band of visible light (mainly emitting blue light), 610nm to 780nm is the long wavelength band of visible light (mainly emitting red light), and the interval between 480nm and 610nm is the medium wavelength band of visible light (mainly emitting yellow-green light). 380nm to 480nm is the lower left region of the horseshoe-shaped color gamut (i.e., the color coordinate range) in the CIE 1931-xy chromaticity diagram, and 610nm to 780nm is the right side of the horseshoe-shaped color gamut (i.e., the color coordinate range) in the CIE 1931-xy chromaticity diagram. Therefore, this design is advantageous for covering a larger color gamut range and for achieving adjustable color coordinates within this range.

[0028] The light source module 10 includes at least one multi-channel light-emitting unit 20, with each individually controllable LED light source 20L serving as an independent light-emitting channel. Specifically, the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d each correspond to one light-emitting channel, thereby obtaining a light source module 10 with at least four channels. Accordingly, depending on the light mixing method of the LED light sources 20L, the light source module 10 is used to emit light formed by a single LED light source 20L or light formed by mixing multiple LED light sources 20L.

[0029] The LED light source 20L has the characteristics of energy saving, environmental protection, safety, long life, low power consumption, high efficiency, high brightness, waterproof, and miniaturization. Moreover, the LED light source 20L also has the characteristics of free spectral combination and easy adjustment of luminous intensity. By selecting the LED light source 20L, it is easy to select light that can emit a suitable color or peak wavelength, so that the light source module 10 can emit light that meets the lighting requirements.

[0030] In this embodiment, each LED light source 20L includes an LED chip. As an example, the LED chip can be mounted on the circuit board 30 using surface mounting or COB (chip on board) packaging. As an example, the circuit board 30 is a printed circuit board (PCB). Specifically, depending on the actual situation (e.g., the number and arrangement of the LED light sources 20L, or the type of luminaire used in the light source module 10), the shape of the circuit board 30 may include a square, rectangle, regular polygon, or circle. Figure 1 As shown, the circuit board 30 is square in shape.

[0031] In this embodiment, the peak wavelengths of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, and the third monochromatic LED light source 20c are located in the first spectral range, the second spectral range, and the third spectral range, respectively. That is, three monochromatic LED light sources are selected from the entire visible light spectrum to meet the spectral requirements of short-wavelength, medium-wavelength, and long-wavelength bands, respectively. Simultaneously, a first composite LED light source 20d, which has a different peak wavelength from the three monochromatic LED light sources and is a non-white light source, is also selected. The spectrum of the first composite LED light source 20d covers a large visible light spectrum range. The first composite LED light source 20d can serve as the basis for light mixing, thus, when combined with the monochromatic LED light sources that meet the requirements of short-wavelength, medium-wavelength, and long-wavelength bands, it is easy to obtain a larger and more continuous spectral adjustment range. This allows for the realization of multiple tunable spectra, i.e., the creation of light environments with different spectra. Furthermore, since the spectral color coordinates of the first composite LED light source 20d are located in CIE19... The region above the Planck blackbody radiation curve in the 31-xy chromaticity diagram is the area where the light is mixed using the four non-white LED light sources 20L. This allows for a large color gamut coverage with a relatively small number of light sources, and the color coordinates can be adjusted within this gamut. Furthermore, because the spectral energy distribution of the four non-white LED light sources covers a large and continuous visible light wavelength range, the adjustment precision is high, and the spectral energy distribution can be changed continuously through light mixing. In addition, spectral indicators such as the color rendering index can be adjusted over a wide range, making the light source module 10 compatible with many functions (e.g., it can be used in a spectral adjustment system to achieve different spectral environments under a fixed set of hardware conditions). This meets various lighting needs (e.g., high color rendering requirements, different rhythmic effect stimulus intensity requirements, and combinations of multiple lighting indicator requirements), thereby improving lighting performance and user experience (e.g., providing users with a high-quality light environment that conforms to rhythmic health while meeting their visual needs).

[0032] When only three LED light sources exist, and the peak wavelengths of these three LED light sources are fixed, the illumination spectrum that can be achieved by this combination corresponds one-to-one with the color coordinates. That is, only a unique spectral scheme under the target color coordinates can be achieved. In this embodiment, the LED light source 20L includes at least a first monochromatic LED light source 20a, a second monochromatic LED light source 20b, a third monochromatic LED light source 20c, and a first composite LED light source 20d. Therefore, the multi-channel light-emitting unit 20 includes at least four channels. Thus, different illumination spectral schemes can be achieved under the same color coordinates, thereby achieving metamerism to meet different lighting needs. For example, by changing the mixing ratio of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d, emission spectra with different spectral energy distributions can be obtained, while still displaying the same color. Here, metamerism refers to: having the same color coordinates on the CIE 1931-xy chromaticity diagram but different spectral compositions.

[0033] Reference Figure 2 , Figure 2 This is a schematic diagram showing the color coordinates of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d on the CIE 1931-xy chromaticity diagram. It should be noted that in 1931, the CIE defined a numerical system for color, which allows the calculation of color points based on the spectrum of color stimuli (i.e., light from a light source or reflected light from a colored surface), called color coordinates. Color coordinates define the position of color stimuli on the xy chromaticity diagram. Figure 2 The horseshoe-shaped diagram shows the positions of the colors, where the x and y coordinates correspond to the horizontal and vertical coordinates of the chromaticity diagram, respectively. Each visible color corresponds to a chromaticity coordinate. Figure 2 The outer boundary of the horseshoe shape represents the color and wavelength of monochromatic light of different wavelengths.

[0034] Specifically, taking two LED light sources with adjustable luminous intensity as an example, on the chromaticity diagram, based on the color coordinates of any two light sources, the positions of the color points of the two light sources can be determined. After the two light sources are mixed, under the condition that the total output light intensity (e.g., illuminance) remains unchanged, by adjusting the proportion of the two in the total output light intensity (e.g., illuminance), i.e. the mixing ratio, any color on the line formed by the two color points can be achieved. In other words, the color of the light emitted after mixing can change along the line.

[0035] In this embodiment, the color point position of the first monochromatic LED light source 20a on the chromaticity diagram is point A, the color point position of the second monochromatic LED light source 20b on the chromaticity diagram is point B, the color point position of the third monochromatic LED light source 20c on the chromaticity diagram is point C, and the color point position of the first composite LED light source 20d on the chromaticity diagram is point D. Points A, B, D, and C are connected sequentially to form a closed region. By adjusting the mixing ratio (e.g., illuminance ratio) of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d, any color within the closed region can be achieved. That is, the closed region is the color gamut range and adjustable color coordinate range that the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d can achieve. Moreover, theoretically, each color coordinate within the closed region can achieve an infinite number of different spectral schemes through the above light source combinations.

[0036] Depend on Figure 2 It is known that the peak wavelengths of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, and the third monochromatic LED light source 20c are located in the first spectral range, the second spectral range, and the third spectral range, respectively. The position of the first composite LED light source 20d on the CIE1931-xy chromaticity diagram is located in the region above Planck's blackbody radiation curve L, and the spectrum of the first composite LED light source 20d covers a large range of visible light wavelengths. Therefore, by mixing the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d, the light source module 10 can cover a large color gamut and achieve adjustable color coordinates within this color gamut.

[0037] In this embodiment, among the first, second, and third spectral peak wavelengths, the second spectral peak wavelength is closer to the first spectral peak wavelength, thereby improving the spectral adjustment accuracy of the light source module 10 for the short-wavelength band of visible light. This makes it easier to meet indicators related to the short-wavelength band, such as rhythmic effect stimulus intensity indicators and color rendering indexes. Among these, indicators related to the short-wavelength band of visible light have a strong correlation with healthy lighting, thus better meeting the user's life needs.

[0038] In this embodiment, the spectrum of the first composite LED light source 20d satisfies the following condition: the fourth spectral peak wavelength is between two adjacent spectral peak wavelengths with a larger gap between the first, second, and third spectral peak wavelengths. Therefore, the first composite LED light source 20d can also fill part of the spectral range between two adjacent spectral peak wavelengths with a larger gap, thereby further improving the light mixing capability of the light source module 10, making the spectral energy distribution of the light source module 10 more continuous after light mixing, and thus easily meeting different requirements such as color rendering and spectral energy efficiency.

[0039] In this embodiment, the first composite LED light source 20d is a phosphor-converted LED (PC LED) light source. The light-emitting principle of the phosphor-converted LED light source is: light of a first wavelength excites the phosphor, emitting light of a second wavelength. Compared with using multiple monochromatic LED light sources to form a corresponding composite LED light source group, the PC LED light source only needs to use one monochromatic LED light source, and obtains a composite LED light source with a more continuous spectral energy distribution by combining the monochromatic LED light source with phosphor. Therefore, the cost of the PC LED light source is lower, which helps to reduce the manufacturing cost of the light source module 10. Moreover, since the spectral energy distribution of the PC LED light source is more continuous, it is beneficial to improve lighting energy efficiency and has better color rendering performance.

[0040] In this embodiment, the first spectral peak wavelength is less than or equal to 465 nm, the third spectral peak wavelength is greater than or equal to 610 nm, and the second spectral peak wavelength is between the first and third spectral peak wavelengths. Specifically, the first spectral peak wavelength of 465 nm is close to the lowest boundary of the horseshoe-shaped gamut in the CIE 1931-xy chromaticity diagram, thereby covering a larger gamut and adjustable color coordinate range as much as possible. The third spectral peak wavelength of 610 nm is close to the rightmost boundary of the horseshoe-shaped gamut in the CIE 1931-xy chromaticity diagram, thereby potentially covering a larger gamut and adjustable color coordinate range.

[0041] Specifically, the first spectral peak wavelength is in the range of 440nm to 465nm, the second spectral peak wavelength is in the range of 480nm to 510nm, the third spectral peak wavelength is in the range of 610nm to 635nm, and the fourth spectral peak wavelength is in the range of 510nm to 560nm. That is to say, the first monochromatic LED light source 20a emits royal blue, the second monochromatic LED light source 20b emits cyan, the third monochromatic LED light source 20c emits reddish orange, and the first composite LED light source 20d emits mint green.

[0042] It should be noted that the first composite LED light source 20d, which has a fourth spectral peak wavelength, has a spectral peak wavelength close to the peak wavelength (555nm) of the photopic spectral luminous efficiency function V(λ). Its spectral energy distribution is relatively continuous and has a high degree of overlap with the spectral response curve corresponding to the photopic spectral luminous efficiency function V(λ). Therefore, the overall spectrum of the first composite LED light source 20d has high energy efficiency, which is beneficial to improving lighting energy efficiency when using the first composite LED light source 20d for light mixing.

[0043] In this embodiment, the first composite LED light source 20d is a phosphor-converted LED light source. As an example, the first composite LED light source 20d excites phosphors to emit mint green light using light with shorter wavelengths in the visible light band (e.g., blue light or blue-violet light).

[0044] First, refer to the reference Figure 4 , Figure 4 This is the spectral luminous efficiency response curve of melanin, with the horizontal axis representing wavelength (nanometers) and the vertical axis representing relative intensity. Figure 4 It is known that the intrinsically photosensitive retinal ganglion cells (ipRGCs) of the human eye are most sensitive to light with wavelengths around 480nm to 490nm. In other words, light stimulation with a peak wavelength of around 480nm to 490nm can effectively provide a high level of rhythmic stimulation. Therefore, by using a second monochromatic LED light source 20b with a second spectral peak wavelength in the range of 480nm to 510nm, the light source module 10 can precisely adjust the spectral intensity of the corresponding band, thereby meeting the different stimulation requirements of the photoreceptor cells.

[0045] Secondly, the first monochromatic LED light source 20a corresponds to a first spectral peak wavelength in the range of 440nm to 465nm. Therefore, the first monochromatic LED light source 20a and the second monochromatic LED light source 20b can be used to mix light to obtain mixed light with a peak wavelength between the first and second spectral peak wavelengths. In other words, the first monochromatic LED light source 20a and the second monochromatic LED light source 20b can cover the spectral range of 440nm to 510nm. Simultaneously, by keeping the first spectral peak wavelength in the range of 440nm to 465nm, the rhythmic stimulation can be adjusted to a certain extent by changing the mixing ratio of the first monochromatic LED light source 20a and the second monochromatic LED light source 20b. Therefore, the first monochromatic LED light source 20a and the second monochromatic LED light source 20b within the aforementioned peak wavelength range help ensure the functionality of the light source module 10 within the spectral range of 440nm to 510nm, thereby meeting the user's conventional application needs. Furthermore, the first monochromatic LED light source 20a also has a certain luminous intensity below 440nm, and can also achieve, to a certain extent, the functionality corresponding to the spectral range with wavelengths less than 440nm.

[0046] Meanwhile, based on the fact that the peak wavelength of the first spectrum is in the range of 440nm to 465nm and the peak wavelength of the second spectrum is in the range of 480nm to 510nm, the interval between the peak wavelengths of the second monochromatic LED light source 20b and the first monochromatic LED light source 20a is small, thereby improving the spectral adjustment accuracy of the short-wavelength band of visible light, and thus making it easier to meet the indicators related to the short-wavelength band of visible light. For example, it is possible to more precisely control the stimulation of different types of photoreceptor cells. Specifically, by mixing the first monochromatic LED light source 20a and the second monochromatic LED light source 20b, it is possible to meet the different stimulation needs of photoreceptor cells that are more sensitive to the short-wavelength spectrum of visible light (S-cone cells), non-visual photoreceptor cells related to rhythm effects (ipRGCs), and photoreceptor cells related to scotopic vision (rod cells), and it is beneficial to accurately control the stimulation intensity of different photoreceptor cells. Different photoreceptor cells have different photosensitivity characteristics. By adjusting the first monochromatic LED light source 20a, more precise stimulation intensity control can be provided for S-type cone cells, while by adjusting the second monochromatic LED light source 20b, more precise stimulation intensity control can be provided for iPRGCs.

[0047] Furthermore, the fourth spectral peak wavelength corresponding to the first composite LED light source 20d is in the range of 510nm to 560nm. Based on the second monochromatic LED light source 20b, the first composite LED light source 20d achieves wavelength continuity, thereby further expanding the spectral adjustment range of the light source module 10. Simultaneously, in conjunction with reference... Figure 3 , Figure 3 This is a relative spectral range diagram of each LED light source 20L in one embodiment of the light source module 10. Curve 21 is the spectral wavelength range diagram of the first monochromatic LED light source 20a, curve 22 is the spectral wavelength range diagram of the second monochromatic LED light source 20b, curve 23 is the spectral wavelength range diagram of the third monochromatic LED light source 20c, and curve 24 is the spectral wavelength range diagram of the first composite LED light source 20d. As can be seen from the figure, the first composite LED light source 20d, which has a peak wavelength of at least 510nm to 560nm, covers a large spectral wavelength range, thereby making the spectral energy distribution of the light source module 10 more continuous to meet different color rendering requirements. In addition, the peak wavelength and spectral energy distribution of the first composite LED light source 20d have a high degree of overlap with the peak wavelength and spectral response curve of the photopic spectral luminous efficiency function V(λ), which is beneficial to improving the overall spectral energy efficiency of the first composite LED light source 20d. As an example, the color coordinates of the first composite LED light source 20d are (0.3873, 0.4829).

[0048] Furthermore, the third spectral peak wavelength corresponding to the third monochromatic LED light source 20c is in the range of 610nm to 635nm. Therefore, the third monochromatic LED light source 20c can be mixed with the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, and the first composite LED light source 20d to obtain a high color rendering index.

[0049] In summary, by employing the four LED light sources 20L described above, the light source module 10 can cover a large color gamut and an adjustable color coordinate range, meeting different lighting needs, thereby improving lighting performance and user experience, even with a relatively small number of light sources.

[0050] Referring to Table 1, the color coordinates, correlated color temperature, color rendering indexes (general color rendering index Ra, special color rendering index R9, color rendering accuracy index Rf, saturation index Rg), and rhythmic illumination index EML (equivalent melanopic illuminance) are shown in the four-channel combination. After the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d are mixed according to different output light intensity (e.g., illuminance) ratios, the results are obtained.

[0051] Table 1

[0052]

[0053] As can be seen from Table 1, based on the four-channel combination of the first monochromatic LED light source 20a, the second monochromatic LED light source 20b, the third monochromatic LED light source 20c, and the first composite LED light source 20d, each channel outputs light according to the required output light intensity (e.g., illuminance) ratio, thereby achieving different lighting spectrum schemes.

[0054] Because the combination of the four LED light sources can cover a wide color gamut and adjustable color coordinate range, the first composite LED light source 20d can serve as the basis for light mixing. This, combined with monochromatic LED light sources that meet the requirements of short-wavelength, mid-wavelength, and long-wavelength bands respectively, easily achieves a larger and more continuous spectral adjustment range, thus enabling multiple adjustable spectra and creating lighting environments with different spectra. Based on the combination of the four LED light sources, multiple metamerism schemes under the target color coordinates can be realized. Different spectral schemes have different lighting index parameters (e.g., rhythmic stimulus intensity index, color rendering correlation index), which can meet the lighting environment requirements of different indoor spaces, improving light quality and user experience.

[0055] Continue to refer to Figure 1 In this embodiment, according to the peak wavelength of the spectrum, the LED light source 20L further includes one or more of the following types of LED light sources: a fourth monochromatic LED light source 20e having a fifth peak wavelength of the spectrum, a second composite light LED light source 20f having at least a sixth peak wavelength of the spectrum, and a white light source 20g, wherein the second composite light LED light source 20f is a non-white light source.

[0056] Continue to refer to Figure 3 Curve 25 is the spectral wavelength range diagram of the fourth monochromatic LED light source 20e, and curve 26 is the spectral wavelength range diagram of the second composite LED light source 20f. In this embodiment, the fifth spectral peak wavelength is in the range of 460nm to 485nm, and the sixth spectral peak wavelength is in the range of 560nm to 610nm. That is to say, the emission color of the fourth monochromatic LED light source 20e is blue, and the emission color of the second composite LED light source 20f is amber.

[0057] The fourth monochromatic LED light source 20e is used to fill the spectral range between the first monochromatic LED light source 20a and the second monochromatic LED light source 20b, thereby improving the adjustment accuracy of the light source module 10 during light mixing and the adjustable color gamut of the light source module 10, thus further enhancing the functionality of the light source module 10. Moreover, the fifth spectral peak wavelength corresponding to the fourth monochromatic LED light source 20 is in the range of 460nm to 485nm, which is related to rhythmic stimulation to a certain extent, thereby further improving the adjustment accuracy of rhythmic stimulation.

[0058] The second composite LED light source 20f is used to fill the spectral range between the first composite LED light source 20d and the third monochromatic LED light source 20c, thereby further increasing the color gamut and adjustable color coordinate range of the light source module 10 during light mixing, and further enhancing the functionality of the light source module 10.

[0059] In this embodiment, the second composite LED light source 20f is a phosphor-converted LED light source. As an example, the second composite LED light source 20f excites phosphors to emit amber light using light with shorter wavelengths in the visible light band (e.g., blue or blue-violet light). The rationale for using a phosphor-converted LED light source can be found in the foregoing description of the first composite LED light source 20d, and will not be repeated here.

[0060] The white light source 20g has a wide spectral range, thereby further increasing the continuity of the spectral energy distribution of the light source module 10 during light mixing. In this embodiment, the relative color temperature (CCT) of the white LED light source 20g is 1800K to 13000K. Figure 3 As shown, curve 29 is the spectral wavelength range of the 20g white LED light source. Specifically, Figure 3 The spectral wavelength range of a 20g white LED light source with a relative color temperature of 4000K is shown.

[0061] It should be noted that, since the multi-channel light-emitting unit 20 includes various types of LED light sources 20L, it can cover a wide range of visible light wavelengths, thus easily achieving high color rendering index. A high color rendering index can be obtained at different color temperatures. Correspondingly, the use of different types of LED light sources 20L helps to reduce the limitation on the relative color temperature of the white LED light source 20g, thereby enabling compatibility with white LED light sources 20g of different relative color temperatures.

[0062] In this embodiment, according to the spectral peak wavelength, the LED light source 20L further includes one or more of a fifth monochromatic light source 20h having a seventh spectral peak wavelength and a sixth monochromatic light source 20i having an eighth spectral peak wavelength.

[0063] Continue to refer to Figure 3 Curve 27 represents the spectral wavelength range of the fifth monochromatic light source 20h, and curve 28 represents the spectral wavelength range of the sixth monochromatic light source 20i. In this embodiment, the seventh spectral peak wavelength is in the range of 420nm to 440nm, and the eighth spectral peak wavelength is in the range of 635nm to 680nm. That is to say, the emission color of the fifth monochromatic light source 20h is violet, and the emission color of the sixth monochromatic light source 20i is red.

[0064] The fifth monochromatic light source 20h is used to fill the spectral range with wavelengths less than 440nm, thereby further improving the spectral adjustment accuracy of the short-wavelength band of visible light to meet the relevant indicators for the short-wavelength band. For example, it enables more precise control over the stimulation of different types of photoreceptor cells.

[0065] The sixth monochromatic light source 20i is used to fill the spectral range with peak wavelengths greater than 635nm, thereby further increasing the spectral wavelength range and color gamut range of the light source module 10 during light mixing, and further enhancing the functionality of the light source module 10.

[0066] In this embodiment, according to the spectral peak wavelength, the LED light source 20L further includes a third composite LED light source 20j having at least a ninth spectral peak wavelength, wherein the ninth spectral peak wavelength is in the range of 510nm to 560nm. That is to say, the emission color of the third composite LED light source 20j is mint green.

[0067] The third composite LED light source 20j and the first composite LED light source 20d have the same peak wavelength range and a wide spectral range, which can increase the adjustment accuracy of the luminous intensity of the LED light source 20L with a peak wavelength in the range of 510nm to 560nm, as well as the adjustable range of the luminous intensity, according to actual needs.

[0068] Specifically, depending on actual needs, the values ​​of the ninth spectral peak wavelength and the fourth spectral peak wavelength can be the same or different. When the values ​​of the ninth spectral peak wavelength and the fourth spectral peak wavelength are different, that is, within the range of 510nm to 560nm, a composite LED light source with two different specific peak wavelength spectra is selected. This further increases the color gamut, adjustable color coordinate range, and adjustment accuracy of the light source module 10 during light mixing, thereby further enhancing the functionality of the light source module 10. When the values ​​of the ninth spectral peak wavelength and the fourth spectral peak wavelength are the same, the absolute intensity of the specific peak wavelength spectrum can be enhanced, thereby further enhancing the functionality of the light source module 10 and the adjustable range of light intensity.

[0069] In this embodiment, the third composite LED light source 20j is a phosphor-converted LED light source. As an example, the third composite LED light source 20j excites phosphors to emit mint-green light using light with shorter wavelengths in the visible light band (e.g., blue or blue-violet light). The rationale for using a phosphor-converted LED light source can be found in the foregoing description of the first composite LED light source 20d, and will not be repeated here.

[0070] Based on the foregoing analysis, even with a small number of light sources in the light source module 10, the number of LED light sources 20L corresponding to the same spectral peak wavelength is only one, which is enough to cover a large color gamut and an adjustable color coordinate range. This allows for the acquisition of a variety of adjustable spectra, meeting various lighting needs. Thus, while ensuring the strong functionality of the light source module 10, the cost of the light source module 10 is significantly reduced.

[0071] Based on actual needs, the number of LED light sources 20L corresponding to the same spectral peak wavelength can be reasonably set, and the number of LED light sources 20L corresponding to the same spectral peak wavelength can be one or more.

[0072] For example, if the third composite LED light source 20j and the first composite LED light source 20d have the same peak wavelength range and spectral energy distribution, then when there is only one of each, and the values ​​of the ninth spectral peak wavelength and the fourth spectral peak wavelength are the same, it can be considered that there are two LED light sources 20L corresponding to that spectral peak wavelength. In this case, the adjustment accuracy of the corresponding spectrum can be further improved, and the functionality can be enhanced. Similarly, when there is only one of each, and the values ​​of the ninth spectral peak wavelength and the fourth spectral peak wavelength are not the same, it can be considered that there is one LED light source 20L corresponding to the fourth spectral peak wavelength and one LED light source 20L corresponding to the ninth spectral peak wavelength. In this case, the functionality of the light source module 10 can be expanded while saving costs.

[0073] It should be noted that, given that there are at least a first monochromatic LED light source 20a, a second monochromatic LED light source 20b, a third monochromatic LED light source 20c, and a first composite LED light source 20d, and that LED light sources with the same spectral peak wavelength are located in the same light-emitting channel, one or more light sources can be selected from the remaining LED light sources 20L according to actual needs, thereby enabling the acquisition of light source modules 10 with five, six, seven, eight, nine, and ten or more channels respectively.

[0074] It is understandable that when LED light sources 20L with the same spectral peak wavelength are located in different light emission channels, a light source module 10 with more channels can be obtained. For example, in the case of having only a first monochromatic LED light source 20a, a second monochromatic LED light source 20b, a third monochromatic LED light source 20c, and a first composite LED light source 20d, the first monochromatic LED light source 20a is one, the second monochromatic LED light source 20b is three and located in the same light emission channel, the third monochromatic LED light source 20c is one, and the first composite LED light source 20d is two and located in different light emission channels, a five-channel light source module 10 can also be obtained.

[0075] It should also be noted that, in the light source module 10, depending on actual needs, LED light sources 20L with the same spectral peak wavelength are located in the same light-emitting channel, or LED light sources 20L with the same spectral peak wavelength are located in different light-emitting channels. When there are multiple LED light sources 20L with the same spectral peak wavelength, each LED light source 20L corresponding to the same spectral peak wavelength can be controlled independently when located in different light-emitting channels. This further increases the color gamut, adjustable color coordinate range, and adjustment accuracy of the light source module 10 during light mixing, thereby further enhancing the functionality of the light source module 10. For example, taking two LED light sources 20L with the same spectral peak wavelength as an example, by independently controlling the two LED light sources 20L, their luminous intensity (e.g., output light intensity) can be adjusted separately to obtain different lighting spectrum schemes to meet actual needs.

[0076] Furthermore, in each of the multi-channel light-emitting units 20, the arrangement of the LED light sources 20L can be designed according to actual needs, such as the number of LED light sources 20L, the type of lamp used in the light source module 10, or the lighting requirements. Specifically, the arrangement of the LED light sources 20L includes: rectangular array arrangement, ring arrangement, strip arrangement, triangular arrangement, or regular polygonal arrangement. Among them, the ring arrangement includes a single ring arrangement or a multi-ring arrangement (e.g., a double ring arrangement).

[0077] In this embodiment, the arrangement of LED light sources 20L in the multi-channel light-emitting unit 20 satisfies the following conditions: the LED light sources 20L in the multi-channel light-emitting unit 20 are uniformly distributed and can achieve uniform light mixing (for example, the LED light sources 20L in the multi-channel light-emitting unit 20 are arranged in a ring-shaped pattern). Figure 1 As shown, taking the multi-channel light-emitting unit 20, which includes the aforementioned 10 LED light sources 20L, as an example, the LED light sources 20L are arranged in a 2*5 rectangular array.

[0078] It should be noted that in each of the multi-channel light-emitting units 20, the LED light source 20L includes a monochromatic LED light source and a composite LED light source, and the monochromatic LED light source with a spectral peak wavelength smaller than the second spectral peak wavelength is staggered from the composite LED light source. The monochromatic LED light source with a spectral peak wavelength smaller than the second spectral peak wavelength emits light with a shorter wavelength, mainly emitting blue light in the short wavelength spectral range. As described above, the composite LED light source usually emits light of the corresponding color by exciting phosphors with light of shorter wavelengths in the visible light range (e.g., blue light or blue-violet light). Therefore, by staggering the monochromatic LED light source with a spectral peak wavelength smaller than the second spectral peak wavelength from the composite LED light source, the influence of the monochromatic LED light source with a shorter spectral peak wavelength on the composite LED light source is reduced, thereby facilitating the emission of mixed light from the light source module 10 to meet the lighting requirements. For example, if a specific monochromatic LED light source with a smaller spectral peak wavelength is placed adjacent to a specific composite LED light source, when the specific monochromatic LED light source needs to be turned on but the specific composite LED light source does not need to be turned on, the light emitted by the specific monochromatic LED light source is likely to excite the phosphor of the specific composite LED light source, thereby causing the specific composite LED light source to be turned on erroneously, which in turn affects the final light mixing effect.

[0079] like Figure 5 As shown, Figure 5 This is a schematic diagram of another embodiment of the light source module of the present invention. In this other embodiment, the LED light source 40 is arranged in a compact, regular polygonal pattern.

[0080] like Figure 6 As shown, Figure 6 This is a structural schematic diagram of another embodiment of the light source module of the present invention. In this embodiment, the LED light sources are arranged in a ring arrangement. Specifically, the LED light sources are arranged in a double-ring arrangement. As an example, Figure 6 The diagram shows the light source module comprising a first monochromatic LED light source 60a, a second monochromatic LED light source 60b, a third monochromatic LED light source 60c, a first composite LED light source 60d, a fourth monochromatic LED light source 60e, a second composite LED light source 60f, a white LED light source 60g, a fifth monochromatic LED light source 60h, a sixth monochromatic LED light source 60i, and a third composite LED light source 60j, with each type of LED light source 50 consisting of three units. It should be noted that... Figure 6 The diagram shows a case where the circuit board 60 is circular. However, the shape of the circuit board 60 is not limited to a circle.

[0081] like Figure 7 As shown, Figure 7This is a schematic diagram of another embodiment of the light source module of the present invention. In this further embodiment, the LED light source 70 is arranged in a strip pattern, that is, in a straight line.

[0082] refer to Figure 8 , Figure 8 This is a functional block diagram of an embodiment of the lighting fixture of the present invention. The lighting fixture 100 includes: the light source module 130 provided in the embodiment of the present invention, wherein the number of the light source modules 130 is one or more; and a control module 120 coupled to the light source module 130, used to individually control the luminous intensity of the LED light source corresponding to each channel in the multi-channel light-emitting unit.

[0083] Because the light source module 130 of this embodiment can cover a large color gamut and an adjustable color coordinate range, it is easy to obtain multiple adjustable spectra through light mixing, thus enabling the creation of lighting environments with different spectra. Furthermore, because the light source module 130 has multiple monochromatic and composite light sources with different peak wavelengths, it can cover a continuous spectral wavelength range with high degree of adjustment freedom. Through light mixing, it can achieve a relatively continuous spectral energy distribution. In addition, it can adjust spectral indicators such as the color rendering index within a wide range. Consequently, the light source module 130 is compatible with a wider range of functions (e.g., it can be used in a spectral adjustment system to achieve lighting environments with different spectra under a fixed set of hardware conditions), meeting various lighting needs (e.g., requirements for color rendering or circadian rhythm indicators), thereby enhancing the functionality and user experience of the luminaire 100 (e.g., providing a high-quality lighting environment that conforms to circadian rhythm and health while meeting the user's visual needs). The specific description of the light source module 130 in this embodiment can be found in the corresponding descriptions in the foregoing embodiments, and will not be repeated here.

[0084] Depending on the type of luminaire 100, it may include wall washer lights, downlights, or panel lights. As an example, when luminaire 100 is a downlight, it has a variable projection angle to achieve different projection directions, thereby obtaining different spatial light distributions and thus an adjustable light environment. It is understood that in other embodiments, the luminaire may also be of other types, such as strip lights, spotlights, rectangular lights, etc. The number of light source modules 130 depends on the type of luminaire 100 or the application scenario. For example, taking a wall washer light as an example, the number of light source modules 130 may be from one to ten.

[0085] The control module 120 is used to individually control the luminous intensity of the LED light source corresponding to each channel in the multi-channel light-emitting unit, thereby improving the control accuracy of the light mixing effect and thus precisely controlling the output light intensity of the lamp 100. As an example, the output light intensity is illuminance, specifically the illuminance at the selected measurement reference surface or reference point.

[0086] Taking the light source module 130 as an example, which includes only a first monochromatic LED light source, a second monochromatic LED light source, a third monochromatic LED light source, and a first composite LED light source, and LED light sources with the same spectral peak wavelength are located in the same light emission channel, the light source module 130 has four channels. The control module 120 is used to individually control the luminous intensity of the first monochromatic LED light source, the second monochromatic LED light source, the third monochromatic LED light source, and the first composite LED light source.

[0087] Specifically, the control module 120 is used to control the driving current of each light-emitting channel, so that the LED light source corresponding to each light-emitting channel outputs the corresponding luminous intensity. In this embodiment, the control module 120 is used to simultaneously control all LED light sources in the same channel. That is, for any channel, when the number of LED light sources corresponding to that channel is multiple, the control module 120 simultaneously controls all LED light sources in that channel. For example, if there is one light source module 130, and the number of first monochromatic LED light sources in the multi-channel light-emitting unit is multiple, and each first monochromatic LED light source is located in the same light-emitting channel, or if there are multiple light source modules 130, and each first monochromatic LED light source is located in the same light-emitting channel, then the control module 120 is used to simultaneously control multiple first monochromatic LED light sources. By simultaneously controlling all LED light sources in the same channel, it is beneficial to reduce the size of the lamp 100 and reduce the structural complexity of the lamp 100.

[0088] In this embodiment, the control module 120 is used to individually control the luminous intensity of the LED light source corresponding to each channel in the multi-channel light-emitting unit according to the lighting scene, so that the light emitted by the light source module 130 meets the lighting requirements of the lighting scene. It should be noted that the lighting scene here can also be understood as the lighting working mode.

[0089] As an example, the control module 120 includes a storage module 121, a dimming module 122, and a visualization configuration module 123. The dimming module 122 is used to adjust the luminous intensity of the LED light sources in each luminous channel; the storage module 121 is used to store the channel address information of each luminous channel of the LED light source in the dimming module 122; the visualization configuration module 123 is used to present the channel address information stored in the storage module 121 to the user as visual information, allowing the user to set the luminous intensity of the LED light source under the corresponding channel address combination to obtain dimming configuration information, and is also used to store the dimming configuration information in the storage module 121 in the form of a lighting scene.

[0090] The storage module 121 stores information on the channel address of each LED light source and different lighting spectrum schemes corresponding to the dimming configuration information, so that it is easy to realize multiple adjustable spectra according to actual lighting needs and emit light with the required color and light parameters.

[0091] The channel address information of each channel in the dimming module 122 is stored in the storage module 121. Since the visualization configuration module 123 stores the dimming configuration information in the storage module 121 in the form of lighting scenes, and each lighting scene has corresponding dimming configuration information, the dimming module 122 adjusts the luminous intensity of the LED light source of each light-emitting channel according to the dimming configuration information corresponding to the lighting scene stored in the storage module 121. In this embodiment, the dimming module 122 is a decoder (e.g., a DMX512 decoder), which is connected to the LED light source corresponding to each channel, thereby allocating the driving current for each light-emitting channel.

[0092] The visualization configuration module 123 is used to retrieve channel address information stored in the storage module 121 and present this information to the user in a visual format. This allows the user to combine and illuminate the LED light sources in each light-emitting channel according to their needs, and configure the luminous intensity of each LED light source. Specifically, the visualization configuration module 123 can present the precision adjustment of the dimming module 122 through 256 levels (0 to 255 levels) or a scale from 0 to 100%. This allows the user to adjust the on / off state and luminous intensity of the LED light sources in each light-emitting channel, thereby obtaining dimming configuration information. This dimming configuration information is stored in the storage module 121 in the form of a lighting scene, so that the dimming module 122 can be used to adjust the luminous intensity of the LED light sources in each light-emitting channel according to the lighting scene.

[0093] In this embodiment, the control module 120 may further include a power module (not shown) coupled to the dimming module 122. The power module 124 is used to convert the input current of the first voltage value into a low-voltage current of the second voltage value that matches the decoder, so that the dimming module 122 can adjust the luminous intensity of the LED light source of each light-emitting channel. The second voltage value is lower than the first voltage value. Through the power module, the input current of the first voltage value is converted into a low-voltage current of the second voltage value that is acceptable to the decoder, so that the decoder can be used normally. As an example, the first voltage value is 220V, and the second voltage value is 12V to 48V.

[0094] In this embodiment, the lighting scene switches over time. Correspondingly, the dimming module 122 adjusts the luminous intensity of the LED light source corresponding to each light-emitting channel according to the dimming configuration information corresponding to the lighting scene at a preset switching time. By adjusting the luminous intensity of the LED light source corresponding to each light-emitting channel at a preset time, the lamp 100 can emit light of different colors and light parameters as time changes. The way the lighting scene switches over time can be set according to actual needs, for example, exhibiting a sinusoidal periodic change, a cosine periodic change, etc. As an example, the control module 120 can be controlled by a mobile terminal. The mobile terminal is coupled to the control module 120, thereby controlling the control module 120 by sending a lighting scene switching command to the control module 120. The control module 120 then controls the light source module 130 to emit light corresponding to the lighting scene based on the received lighting scene switching command. Specifically, the mobile terminal includes a mobile phone, computer, etc., and the lighting scene switching command can be sent to the control module 120 through a mobile phone or computer APP client.

[0095] In this embodiment, the lamp 100 further includes a light-diffusing module 140 disposed on the light-emitting surface of the light source module 130. By disposing the light-diffusing module 140 on the light-emitting surface of the light source module 130, the mixed light emitted by the light source module 130 is uniformly mixed, thereby creating a uniform light environment for the lamp 100. Specifically, the light-diffusing module 140 includes a light-diffusing plate or a diffuser plate.

[0096] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A light source module, characterized in that, It includes at least one multi-channel light-emitting unit. According to the light-emitting channel, each multi-channel light-emitting unit includes multiple individually controlled LED light sources. According to the spectral peak wavelength, the LED light sources include at least a first monochromatic LED light source with a first spectral peak wavelength, a second monochromatic LED light source with a second spectral peak wavelength, a third monochromatic LED light source with a third spectral peak wavelength, and a first composite light LED light source with at least a fourth spectral peak wavelength. The visible light spectral wavelength range includes a first spectral interval, a third spectral interval, and a second spectral interval located between the first spectral interval and the third spectral interval. The first spectral peak wavelength, the second spectral peak wavelength, and the third spectral peak wavelength are located in the first spectral interval, the second spectral interval, and the third spectral interval, respectively. The fourth spectral peak wavelength is different from the first spectral peak wavelength, the second spectral peak wavelength, and the third spectral peak wavelength. The first composite LED light source is a non-white light source. The spectral color coordinates of the first composite LED light source deviate from the Planck blackbody radiation curve in the CIE1931-xy chromaticity diagram and are located in the region above the Planck blackbody radiation curve.

2. The light source module as described in claim 1, characterized in that, The peak wavelength range of the first spectral interval is 380nm to 480nm, the peak wavelength range of the third spectral interval is 610nm to 780nm, and the peak wavelength of the second spectral interval is between 480nm and 610nm.

3. The light source module as described in claim 2, characterized in that, The first spectral peak wavelength is less than or equal to 465 nm, the third spectral peak wavelength is greater than or equal to 610 nm, and the second spectral peak wavelength is between the first spectral peak wavelength and the third spectral peak wavelength.

4. The light source module as described in claim 1, characterized in that, Among the first spectral peak wavelength, the second spectral peak wavelength, and the third spectral peak wavelength, the second spectral peak wavelength is closer to the first spectral peak wavelength.

5. The light source module as described in claim 1, characterized in that, The fourth spectral peak wavelength is located between two adjacent spectral peak wavelengths that are further apart from the first, second, and third spectral peak wavelengths.

6. The light source module as described in claim 3, characterized in that, The first spectral peak wavelength is in the range of 440nm to 465nm, the second spectral peak wavelength is in the range of 480nm to 510nm, the third spectral peak wavelength is in the range of 610nm to 635nm, and the fourth spectral peak wavelength is in the range of 510nm to 560nm.

7. The light source module as described in claim 6, characterized in that, According to the spectral peak wavelength, the LED light source also includes one or more of the following types of LED light sources: a fourth monochromatic LED light source having a fifth spectral peak wavelength, a second composite LED light source having at least a sixth spectral peak wavelength, and a white LED light source, wherein the second composite LED light source is a non-white light source; The fifth spectral peak wavelength is in the range of 460nm to 485nm, and the sixth spectral peak wavelength is in the range of 560nm to 610nm.

8. The light source module as described in claim 6 or 7, characterized in that, According to the spectral peak wavelength, the LED light source further includes one or more of a fifth monochromatic light source having a seventh spectral peak wavelength and a sixth monochromatic light source having an eighth spectral peak wavelength; The seventh spectral peak wavelength is in the range of 420 nm to 440 nm, and the eighth spectral peak wavelength is in the range of 635 nm to 680 nm.

9. The light source module as described in claim 7, characterized in that, The correlated color temperature of the white LED light source is 1800K to 13000K.

10. The light source module as described in claim 6, characterized in that, According to the spectral peak wavelength, the LED light source also includes a third composite LED light source having at least a ninth spectral peak wavelength, wherein the ninth spectral peak wavelength is in the range of 510nm to 560nm.

11. The light source module as described in claim 1, characterized in that, The number of LED light sources corresponding to the same spectral peak wavelength is one or more, and the LED light sources with the same spectral peak wavelength are located in the same light emission channel, or in different light emission channels.

12. The light source module as described in claim 1, characterized in that, The first composite LED light source is a phosphor-converted LED light source.

13. The light source module as described in claim 7, characterized in that, The second composite LED light source is a phosphor-converted LED light source.

14. The light source module as described in claim 10, characterized in that, The third composite LED light source is a phosphor-converted LED light source.

15. The light source module as described in claim 1, characterized in that, In each of the multi-channel light-emitting units, the arrangement of the LED light sources includes: rectangular array arrangement, ring arrangement, strip arrangement, triangular arrangement, or regular polygonal arrangement.

16. The light source module as described in claim 1, characterized in that, In each of the multi-channel light-emitting units, the LED light source includes a monochromatic LED light source and a composite LED light source, and the monochromatic LED light source with a spectral peak wavelength smaller than the second spectral peak wavelength is staggered from the composite LED light source.

17. A lamp, characterized in that, include: The light source module as described in any one of claims 1 to 16, wherein the number of light source modules is one or more; The control module coupled to the light source module is used to individually control the luminous intensity of the LED light source corresponding to each channel in the multi-channel light-emitting unit.

18. The lamp as described in claim 17, characterized in that, The control module is used to control the driving current of each light-emitting channel, so that the LED light source corresponding to each light-emitting channel outputs the corresponding luminous intensity.

19. The luminaire as claimed in claim 17, characterized in that, The control module includes a storage module, a dimming module, and a visualization configuration module, wherein, The dimming module is used to adjust the luminous intensity of the LED light source in each luminous channel; The storage module is used to store information about the channel address of the LED light source in each of the light-emitting channels in the dimming module; The visualization configuration module is used to present the channel address information stored in the storage module to the user in a visual manner, so that the user can set the luminous intensity of the LED light source under the corresponding channel address combination to obtain dimming configuration information. It is also used to store the dimming configuration information in the storage module in the form of a lighting scene.

20. The lamp as described in claim 19, characterized in that, The lighting scenes switch over time; The dimming module is used to adjust the luminous intensity of the LED light source corresponding to each luminous channel according to the dimming configuration information corresponding to the lighting scene at a preset switching time.

21. The lamp as described in claim 17, characterized in that, The lighting fixtures include wall washer lights, downlights, or panel lights.

22. The lamp as described in claim 21, characterized in that, The downlight has a variable projection angle to achieve different projection directions.

23. The lamp as described in claim 17, characterized in that, The lamp also includes a light-diffusing module, which is disposed on the light-emitting surface of the light source module.

Images