LED light source

Abstract

Provided in the present application is an LED light source (100), comprising a light source board (10) and light-emitting units (20). The orientations of light-emitting units (20) arranged in a first light-emitting region (11) are different from the orientations of light-emitting units (20) arranged in a second light-emitting region (12) in the same row, which can ensure the overlap uniformity of light emitted from the first light-emitting region (11) and the second light-emitting region (12); a plurality of columns of light-emitting units (20) in a first light-emitting row group (21) and a plurality of columns of light-emitting units (20) in a second light-emitting row group (22) are arranged in a staggered manner, such that the distribution of light of various colors in an illumination region is more uniform; and in two adjacent rows of light-emitting units (20) in the first light-emitting row group (21) and the second light-emitting row group (22), the orientations of the light-emitting units (20) located in the first light-emitting region (11) and the orientations of the light-emitting units (20) located in the second light-emitting region (12) are set opposite each other at intersection positions, such that chips of different light colors can be uniformly and dispersedly arranged, and therefore the light emitted from the light-emitting units (20) can be uniformly superimposed and interleaved on a propagation path, thereby effectively promoting a mixing effect, and thus ensuring the light-emitting uniformity of the LED light source (100), and efficiently meeting the light-emitting requirements for photography and videography lamps.

Description

LED light source

[0001] This application claims priority to Chinese Patent Application No. 2025203013257, filed on February 24, 2025, entitled "LED Light Source", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of light-emitting device technology, and in particular to an LED light source. Background Technology

[0003] In modern photography and videography, LED photography and videography lights are often used as auxiliary light sources to achieve better image quality.

[0004] To adjust the color of the light source, LED photography and video lights typically have multiple LED chips of different colors, such as RGB, on their substrate. The different arrangements of these colored chips on the substrate produce varying degrees of uniformity in the lighting. Summary of the Invention

[0005] This application provides an LED light source, which includes:

[0006] A light source board has a central axis formed on its surface, passing through the center of the light source board. The areas on the surface of the light source board corresponding to the two sides of the central axis are respectively the first light-emitting area and the second light-emitting area.

[0007] The light-emitting unit comprises multiple units, which are arranged in a multi-row, multi-column array in the first and second light-emitting areas of the light source plate. Each light-emitting unit includes red, green, and blue light elements arranged in a predetermined manner, such that the light-emitting unit forms a predetermined orientation. All light-emitting units in each row of the first light-emitting area have the same orientation, and all light-emitting units in each row of the second light-emitting area have the same orientation. The orientations of the light-emitting units arranged in the first light-emitting area and the light-emitting units arranged in the second light-emitting area in the same row are different.

[0008] The light-emitting units on the light source board include several first light-emitting row groups and several second light-emitting row groups. Each first light-emitting row group and each second light-emitting row group includes at least two rows of light-emitting units that span the first light-emitting area and the second light-emitting area. The first light-emitting row groups and the second light-emitting row groups are arranged alternately on the light source board. The multiple rows of light-emitting units in the first light-emitting row group are arranged vertically aligned in each column, and the multiple rows of light-emitting units in the second light-emitting row group are arranged vertically aligned in each column. In adjacent first light-emitting row groups and second light-emitting row groups, the multiple columns of light-emitting units in the first light-emitting row group and the multiple columns of light-emitting units in the second light-emitting row group are arranged in an alternating manner.

[0009] In any group of the first light-emitting rows, the orientation of the light-emitting unit located in the Nth row of the first light-emitting area is opposite to the orientation of the light-emitting unit located in the N+1th row of the second light-emitting area; in any group of the second light-emitting rows, the orientation of the light-emitting unit located in the Mth row of the first light-emitting area is opposite to the orientation of the light-emitting unit located in the M+1th row of the second light-emitting area. Attached Figure Description

[0010] Figure 1 is a structural schematic diagram of an embodiment of the LED light source of this utility model.

[0011] Figure 2 is a schematic diagram of an example of the light-emitting unit in the LED light source shown in Figure 1.

[0012] Figure 3 is a schematic diagram of another example of the light-emitting unit in the LED light source shown in Figure 1 (the orientation of the light-emitting unit in Figure 3 is opposite to that of the light-emitting unit in Figure 2).

[0013] Figure 4 is a schematic diagram of the structure of a portion of the LED light source shown in Figure 1.

[0014] Figure 5 is a schematic diagram of the structure of a portion of the LED light source shown in Figure 1.

[0015] Figure 6 is a structural schematic diagram of another embodiment of the LED light source of this utility model.

[0016] Figure 7 is a schematic diagram of the structure of a portion of the LED light source shown in Figure 6.

[0017] Figure 8 is a schematic diagram of the structure of a portion of the LED light source shown in Figure 6.

[0018] The reference numerals in the attached figures are explained as follows: 100, LED light source; 10, light source board; 101, central axis; 11, first light-emitting area; 12, second light-emitting area; 20, light-emitting unit; 21, first light-emitting row group; 22, second light-emitting row group; 30, cool and warm light unit; 31, cool light element; 32, warm light element; 40, axis unit. Detailed Implementation

[0019] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0020] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely 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. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0021] 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 the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Referring to Figures 1 to 3, one embodiment of this application provides an LED light source 100, which includes a light source board 10 and light-emitting units 20 disposed on the light source board 10.

[0023] Specifically, a central axis 101 passing through the center of the light source plate 10 is formed on the surface of the light source plate 10. The areas on both sides of the central axis 101 on the surface of the light source plate 10 are the first light-emitting area 11 and the second light-emitting area 12, respectively. Multiple light-emitting units 20 are provided, and these units are arranged in a multi-row, multi-column array in the first and second light-emitting areas 11 and 12 of the light source plate 10. Each light-emitting unit 20 includes red light elements (indicated by letter R in the figure), green light elements (indicated by letter G in the figure), and blue light elements (indicated by letter B in the figure) arranged in a predetermined manner. The red, green, and blue light elements arranged in the predetermined manner cause the light-emitting unit 20 to have a predetermined orientation. The multiple light-emitting units 20 in each row of the first light-emitting area 11 have the same orientation, and the multiple light-emitting units 20 in each row of the second light-emitting area 12 also have the same orientation. However, the orientations of the light-emitting units 20 arranged in the first light-emitting area 11 and the light-emitting units 20 arranged in the second light-emitting area 12 in the same row are different.

[0024] The light source board 10 includes multiple rows of light-emitting units 20, comprising several first light-emitting row groups 21 and several second light-emitting row groups 22. Each first light-emitting row group 21 and each second light-emitting row group 22 includes at least two rows of light-emitting units 20 spanning the first light-emitting area 11 and the second light-emitting area 12. The first light-emitting row groups 21 and the second light-emitting row groups 22 are arranged alternately on the light source board 10. The multiple rows of light-emitting units 20 in the first light-emitting row group 21 are arranged vertically aligned in each column, and the multiple rows of light-emitting units 20 in the second light-emitting row group 22 are also arranged vertically aligned in each column. In adjacent first light-emitting row groups 21 and second light-emitting row groups 22, the multiple columns of light-emitting units 20 in the first light-emitting row group 21 and the multiple columns of light-emitting units 20 in the second light-emitting row group 22 are arranged in an alternating manner.

[0025] In any group of first light-emitting rows 21, the orientation of the light-emitting unit 20 located in the Nth row of the first light-emitting area 11 is opposite to the orientation of the light-emitting unit 20 located in the N+1th row of the second light-emitting area 12; in any group of second light-emitting rows 22, the orientation of the light-emitting unit 20 located in the Mth row of the first light-emitting area 11 is opposite to the orientation of the light-emitting unit 20 located in the M+1th row of the second light-emitting area 12.

[0026] For the LED light source 100 of this application, the multiple light-emitting units 20 in each row of the first light-emitting area 11 have the same orientation, and the multiple light-emitting units 20 in each row of the second light-emitting area 12 have the same orientation. However, the orientations of the light-emitting units 20 arranged in the first light-emitting area 11 and the second light-emitting area 12 are different. This arrangement ensures both the brightness of the LED light source 100 and the uniformity of the overlapping light emitted from the first light-emitting area 11 and the second light-emitting area 12. The multiple columns of light-emitting units 20 in the first light-emitting row group 21 and the multiple columns of light-emitting units 20 in the second light-emitting row group 22 are staggered, allowing the light-emitting units 20 to be more evenly distributed on the light source board 10, effectively utilizing the space on the surface of the light source board 10, and enabling various colors in the illumination area to be displayed. The light distribution is more uniform; and the orientation of the light-emitting unit 20 in the Nth row of the first light-emitting group 21 located in the first light-emitting area 11 is opposite to that of the light-emitting unit 20 in the N+1th row located in the second light-emitting area 12, and the orientation of the light-emitting unit 20 in the Mth row of the second light-emitting group 22 located in the first light-emitting area 11 is opposite to that of the light-emitting unit 20 in the M+1th row located in the second light-emitting area 12, can make the chips of different colors evenly and dispersedly arranged, so that the light emitted by the light-emitting unit 20 in the first light-emitting area 11 and the second light-emitting area 12, as well as the light-emitting unit 20 in different rows, can be evenly superimposed and interwoven on the propagation path, so as to effectively promote the mixing effect, thereby effectively ensuring the uniformity of the light emission of the LED light source 100 and efficiently meeting the light emission requirements of photography and video lighting.

[0027] In some embodiments of this application, the light source board 10 is used to support and mount the light-emitting unit 20, and can provide electrical connection and physical support for the light-emitting unit 20 to realize the electrical connection and fixed assembly of the light-emitting unit 20, thereby realizing the light-emitting function of the LED light source 100.

[0028] The surface of the light source plate 10, on which the light-emitting unit 20 is mounted, has a central axis 101 passing through the center of the light source plate 10. The areas on either side of the central axis 101 on the surface of the light source plate 10 are the first light-emitting area 11 and the second light-emitting area 12, respectively. In some examples, the light source plate 10 is circular, and the central axis 101 passes through the center of the light source plate 10. In other examples, the light source plate 10 can also be set into a square, polygonal, or irregular shape, etc., according to the design requirements of the actual product.

[0029] The first light-emitting area 11 shown in Figure 1 is the left side of the central axis 101, and the second light-emitting area 12 is the right side of the central axis 101. It should be noted that the left side being the first light-emitting area 11 and the right side being the second light-emitting area 12 is only for illustration based on the situation shown in Figure 1, and does not mean that the specific left and right sides of the light source board 10 in this application must be the first and second light-emitting areas (11, 12).

[0030] In some embodiments of this application, the distance between any two adjacent light-emitting units 20 in the same row of the first light-emitting area 11 and the second light-emitting area 12 is equal.

[0031] This arrangement facilitates the uniform distribution of multiple light-emitting units 20 on the light source plate 10, thereby achieving uniform light emission from the LED light source 100 as a whole. In other examples, depending on the application requirements, the spacing between any two adjacent light-emitting units 20 in the same row can also be set to be unequal to enable the LED light source 100 to achieve the desired optical effect.

[0032] Each light-emitting unit 20 of this application includes red light elements, green light elements, and blue light elements arranged in a predetermined manner. When the red light element is energized, it emits red light; when the green light element is energized, it emits green light; and when the blue light element is energized, it emits blue light. The red, green, and blue light rays in the light-emitting unit 20 are mixed together to produce corresponding color and brightness effects.

[0033] The red light element can be composed of a red light chip, which can directly emit red light when the red light chip is powered on; or it can be composed of a non-red light chip combined with phosphor, in which the light emitted by the non-red light chip is excited by the phosphor to emit red light. Similarly, the light emission of green and blue light elements can be designed based on the same principle.

[0034] Specifically, the emission wavelength range of the red light element can be 615nm to 660nm, the emission wavelength range of the green light element can be 515nm to 540nm, and the emission wavelength range of the blue light element can be 420nm to 485nm.

[0035] In some embodiments of this application, the red, green, and blue light elements in each light-emitting unit 20 are uniformly encapsulated in a single housing. During fabrication, each light-emitting unit 20 simply needs to be mounted onto the light source board 10 according to its corresponding arrangement. This arrangement makes the production and assembly of the light-emitting units 20 more convenient and results in a more compact overall structure.

[0036] In other examples, the red, green, and blue light elements of each light-emitting unit 20 can be packaged separately, each with its own independent housing. In this example, the LED light source 100 can be manufactured such that the red, green, and blue light elements are independently mounted on the light source board 10 according to their respective arrangements. This arrangement facilitates the replacement and maintenance of the red, green, and blue light elements, thus benefiting the later use and maintenance of the LED light source 100.

[0037] Furthermore, as shown in Figures 2 and 3, the red light element, green light element, and blue light element in the light-emitting unit 20 are arranged in a triangular pattern.

[0038] In the light-emitting unit 20, the red light element, green light element and blue light element are arranged in a triangular pattern, which enables the three colors of light to mix more efficiently during the propagation process, thereby achieving a more uniform light mixing effect, reducing the sense of boundary between colors, and making the overall light emission color more natural and uniform.

[0039] Furthermore, the triangular structure formed by the red, green, and blue light elements possesses a certain degree of stability. When subjected to external impacts or vibrations, the relative positions of the light elements are not easily altered, helping to ensure the consistency and stability of the LED light source 100's luminous effect. In addition, this arrangement allows for the rational arrangement of the three colors of light elements within a relatively small space, improving the space utilization on the light source board 10 and enabling a more compact design for lamps or other light-emitting devices.

[0040] In other examples, the light-emitting unit 20 can also arrange the red light element, green light element and blue light element in other ways according to the actual product requirements, such as in a straight line or in an L-shape.

[0041] In some embodiments of this application, as shown in FIG1, the line connecting the center of the green light element and the center of the blue light element in each light-emitting unit 20 is parallel to the central axis 101, and the red light element is arranged on one side of the line connecting the center of the green light element and the center of the blue light element, so as to realize that the red light element, green light element and blue light element are arranged in a triangular shape.

[0042] It is understood that in other embodiments, the arrangement of the red light element, green light element and blue light element in each light-emitting unit 20 is not limited to the arrangement shown in FIG1. ​​For example, the line connecting the center of the red light element and the center of the blue light element in each light-emitting unit 20 may be parallel to the central axis 101, and the green light element may be arranged on one side of the line connecting the center of the red light element and the center of the blue light element; or, the line connecting the center of the red light element and the center of the green light element in each light-emitting unit 20 may be parallel to the central axis 101, and the blue light element may be arranged on one side of the line connecting the center of the red light element and the center of the green light element.

[0043] Furthermore, in some embodiments, in each light-emitting unit 20, the line connecting the centers of two of the three light elements is perpendicular to the central axis 101, and the third light element is arranged on one side of the line connecting the centers of the two light elements. That is, the arrangement of the red light element, green light element, and blue light element in each light-emitting unit 20 can be changed in position according to specific needs to achieve the uniform light effect required by the product.

[0044] In this application, in each light-emitting unit 20, the arrangement of the red light element, the green light element, and the blue light element corresponds to the relative position of each light element in the triangular structure formed by the three, and the orientation of the light-emitting unit 20 corresponds to the relative positional relationship of the three light elements.

[0045] Referring to Figures 2 and 3, the triangular structure formed by the three light elements in the light-emitting unit 20 has one opening on the left and two openings on the right, or one opening on the right and two openings on the left. Figure 2 illustrates the structure of the light-emitting unit 20 with one opening on the left, and Figure 3 illustrates the structure of the light-emitting unit 20 with one opening on the right.

[0046] Specifically, in the light-emitting unit 20 shown in Figure 2, the red light element is located at the left opening of the triangular structure, while the green and blue light elements are located above and below the two openings on the right, respectively. In the light-emitting unit 20 shown in Figure 3, the red light element is located at the right opening of the triangular structure, while the blue and green light elements are located above and below the two openings on the left, respectively.

[0047] If the arrangement of the three optical elements shown in Figure 2 is the forward orientation of the light-emitting unit 20, then the arrangement of the three optical elements in the light-emitting unit 20 shown in Figure 3 is the reverse orientation corresponding to the form shown in Figure 2, that is, the orientation of the light-emitting unit 20 shown in Figure 2 is opposite to the orientation of the light-emitting unit 20 shown in Figure 3. Furthermore, the reverse-oriented light-emitting unit 20 shown in Figure 3 can be obtained by rotating the forward-oriented light-emitting unit 20 shown in Figure 2 by 180°, that is, the orientation of the light-emitting unit 20 shown in Figure 2 forms a 180° angle with the orientation of the light-emitting unit 20 shown in Figure 3.

[0048] It should be noted that, as shown in Figure 1, the three light elements can also be arranged in a triangular structure with one opening on the left side, which is the forward orientation of the light-emitting unit 20 (where the left side is relative to the other two light elements). Correspondingly, the three light elements can be arranged in a triangular structure with one opening on the right side, which is the reverse orientation of the light-emitting unit 20 (where the right side is relative to the other two light elements).

[0049] Furthermore, in some examples, the triangular structure formed by the three light elements in each light-emitting unit 20 can be in the form of one opening at the top and two openings at the bottom. The red, green, and blue light elements can be arranged at the positions of the three openings according to the light emission requirements of the LED light source 100, thus giving the light-emitting unit 20 different orientations.

[0050] Furthermore, referring to Figures 1, 4, and 5 (for clarity of the scheme, some light-emitting units 20 in Figure 5 are hidden and shown by the shaded area), the multiple light-emitting units 20 in each row of the first light-emitting area 11 have the same orientation, and the multiple light-emitting units 20 in each row of the second light-emitting area 12 have the same orientation. The orientation of the light-emitting units 20 arranged in the first light-emitting area 11 in the same row is different from that of the light-emitting units 20 arranged in the second light-emitting area 12.

[0051] This arrangement simplifies the arrangement of light-emitting units 20 with different orientations in the first light-emitting area 11 and the second light-emitting area 12, improving the manufacturing efficiency of the LED light source 100. On the other hand, it allows the light emitted by the light-emitting units 20 with different orientations in the first light-emitting area 11 and the second light-emitting area 12 to overlap and mix in space, reducing the difference in brightness within the illumination area and making the light distribution more uniform.

[0052] In this application, the multi-row light-emitting units 20 on the light source board 10 include a plurality of first light-emitting row groups 21 and a plurality of second light-emitting row groups 22. Each of the first light-emitting row groups 21 and the second light-emitting row groups 22 includes at least two rows of light-emitting units 20. The first light-emitting row groups 21 and the second light-emitting row groups 22 are arranged alternately on the light source board 10.

[0053] In some examples, as shown in the accompanying drawings of this application, both the first light-emitting row group 21 and the second light-emitting row group 22 include two rows of light-emitting units 20. In other examples, the number of rows of light-emitting units 20 in the first light-emitting row group 21 and the second light-emitting row group 22 can be set to three rows, four rows, etc., depending on actual product requirements. Furthermore, the number of rows of light-emitting units 20 in the first light-emitting row group 21 and the second light-emitting row group 22 can be the same or different.

[0054] The multiple rows of light-emitting units 20 in the first light-emitting row group 21 are arranged vertically aligned in each column, and the multiple rows of light-emitting units 20 in the second light-emitting row group 22 are arranged vertically aligned in each column; in the adjacent first light-emitting row group 21 and second light-emitting row group 22, the multiple columns of light-emitting units 20 in the first light-emitting row group 21 and the multiple columns of light-emitting units 20 in the second light-emitting row group 22 are arranged in an alternating manner.

[0055] The alternating arrangement of the first light-emitting row group 21 and the second light-emitting row group 22 on the light source board 10 enables more uniform and widespread spatial scattering of the light emitted by the light-emitting units 20 on the light source board 10. This facilitates the application of the LED light source 100 in large spaces or scenarios requiring large-area lighting, achieving a more uniform overall lighting effect and reducing blind spots and dark areas. Furthermore, in adjacent first light-emitting row groups 21 and second light-emitting row groups 22, the multiple columns of light-emitting units 20 in the first light-emitting row group 21 and the multiple columns of light-emitting units 20 in the second light-emitting row group 22 are staggered, allowing for greater variation in the light emitted by the light-emitting units 20 at different positions and angles, resulting in a more layered and three-dimensional effect. In addition, this staggered arrangement increases the density of the light-emitting units 20 on the light source board 10, which is beneficial for enhancing the brightness and clarity of the light.

[0056] The orientation of the light-emitting unit 20 arranged in the first light-emitting area 11 in the same row of the first light-emitting row group 21 is different from that of the light-emitting unit 20 arranged in the second light-emitting area 12. The orientations of the light-emitting units 20 in adjacent rows of the first light-emitting row group 21 are different.

[0057] For the light-emitting units 20 of the first light-emitting row group 21, the orientation of the light-emitting units 20 in the two adjacent rows is different, which can change the interference and diffraction conditions of light, effectively eliminate the undesirable visual phenomena such as moiré patterns caused by light interference, and make the display or lighting effect clearer and more stable; and the orientation of the light-emitting units 20 arranged in the first light-emitting area 11 in the same row of the first light-emitting row group 21 is different from that of the light-emitting units 20 arranged in the second light-emitting area 12, which can make the light emitted by the light-emitting units 20 in the first light-emitting row group 21 on both sides of the central axis 101 superimpose and mix with each other in space, reduce the difference in brightness in the lighting area, and make the light distribution more uniform.

[0058] In some embodiments of this application, the orientation of the light-emitting unit 20 arranged in the first light-emitting area 11 in the same row of the second light-emitting row group 22 is different from the orientation of the light-emitting unit 20 arranged in the second light-emitting area 12; the orientation of the light-emitting unit 20 in two adjacent rows of the second light-emitting row group 22 is different.

[0059] For the light-emitting units 20 of the second light-emitting row group 22, the orientation of the light-emitting units 20 in the two adjacent rows is different, which can change the interference and diffraction conditions of light, effectively eliminate the undesirable visual phenomena such as moiré patterns caused by light interference, and make the display or lighting effect clearer and more stable; and the orientation of the light-emitting units 20 arranged in the second light-emitting area 12 in the same row of the second light-emitting row group 22 is different from that of the light-emitting units 20 arranged in the second light-emitting area 12, which can make the light emitted by the light-emitting units 20 in the second light-emitting row group 22 on both sides of the central axis 101 superimpose and mix with each other in space, reduce the difference in brightness in the lighting area, and make the light distribution more uniform.

[0060] Based on this, the staggered arrangement of multiple light-emitting units 20 in the first light-emitting row group 21 and multiple light-emitting units 20 in the second light-emitting row group 22 can expand the coverage of light, reduce lighting dead spots, and make the light in the entire lighting area more uniform.

[0061] Furthermore, in the light source board 10 of this application, the green light element and the blue light element are arranged in a staggered manner in the adjacent light-emitting units 20 in two adjacent rows.

[0062] The staggered arrangement of green and blue light elements in adjacent rows of near-adjacent light-emitting units 20 allows the green and blue light to mix in a more complex manner during propagation. Compared to a neat arrangement, the staggered arrangement increases the intersection and superposition paths of light rays, which helps to form a more uniform and natural mixed light. The resulting light color is softer and more delicate, reducing abrupt color changes and unevenness.

[0063] Furthermore, the staggered distribution of green and blue light elements allows for a more uniform spatial distribution of light, avoiding color differences in the illuminated area that may result from the concentrated distribution of a certain type of light element, thus contributing to the uniformity of illumination.

[0064] Furthermore, in some embodiments of this application, the orientation of the light-emitting unit 20 in the Nth row of the first light-emitting row group 21 located in the first light-emitting area 11 is opposite to the orientation of the light-emitting unit 20 in the N+1th row located in the second light-emitting area 12, and the orientation of the light-emitting unit 20 in the Mth row of the second light-emitting row group 22 located in the first light-emitting area 11 is opposite to the orientation of the light-emitting unit 20 in the M+1th row located in the second light-emitting area 12.

[0065] For the example drawings of this application, both the first light-emitting row group 21 and the second light-emitting row group 22 include two rows of light-emitting units 20. In the first light-emitting row group 21, the orientation of the light-emitting units 20 in the first row located in the first light-emitting area 11 is opposite to the orientation of the light-emitting units 20 in the second row located in the second light-emitting area 12. In the second light-emitting row group 22, the orientation of the light-emitting units 20 in the first row located in the first light-emitting area 11 is opposite to the orientation of the light-emitting units 20 in the second row located in the second light-emitting area 12.

[0066] This arrangement allows the light emitted by the light-emitting units 20 in the first light-emitting row group 21 and the second light-emitting row group 22 to cross and mix in space at a wider angle and range. Different colors of light can be more fully superimposed, resulting in more uniform and natural light colors, creating a softer lighting effect and reducing color deviation and unevenness in the light. Furthermore, the alternating arrangement of the first and second light-emitting row groups 21 and 22 on the light source plate 10 effectively expands the light coverage angle, achieving a wide-angle lighting effect and ensuring relatively uniform light coverage throughout the entire area.

[0067] Furthermore, in some embodiments of this application, the LED light source 100 further includes a cool and warm light unit 30, which includes a cool light element 31 (indicated by the letter C in the figure) and / or a warm light element 32 (indicated by the letter W in the figure). Both the first light-emitting area 11 and the second light-emitting area 12 are provided with multiple cool and warm light units 30, and cool and warm light units 30 are provided between adjacent light-emitting units 20 in the same row and at the edge of the light source plate 10.

[0068] The warm-light element 32 emits a warm-toned light, typically with a color temperature below 3000K. The cool-light element 31 emits a cool-toned light, typically with a color temperature above 5000K. Both the cool-light element 31 and the warm-light element 32 can include an LED chip and phosphor. The LED chip can be a blue LED chip, an ultraviolet LED chip, etc., and the phosphor can be yellow phosphor, red phosphor, green phosphor, or blue phosphor. Specifically, the phosphor can be excited by the light emitted by the LED chip to produce warm white light or cool white light.

[0069] In some examples, as shown in Figure 1, warm light elements 32 are provided between two adjacent light-emitting units 20 in the same row and at the edge of the light source plate 10. The arrangement of warm light elements 32 can, on the one hand, increase the arrangement density of light elements on the light source plate 10 and enhance the light output brightness of the LED light source 100. On the other hand, the warm-toned light emitted by the warm light elements 32 can be uniformly superimposed and interwoven with the light emitted by the light-emitting units 20 along the propagation path to improve the light mixing effect, effectively enhance the light emission uniformity of the LED light source 100, and realize the application of the LED light source 100 in products that require warm light.

[0070] In some examples, as shown in Figure 6, cold light elements 31 are provided between two adjacent light-emitting units 20 in the same row and at the edge of the light source board 10. The arrangement of cold light elements 31 can, on the one hand, increase the arrangement density of light elements on the light source board 10 and enhance the light output brightness of the LED light source 100. On the other hand, the cool-toned light emitted by the cold light elements 31 can be uniformly superimposed and interwoven with the light emitted by the light-emitting units 20 along the propagation path to improve the light mixing effect, effectively enhance the light emission uniformity of the LED light source 100, and realize the application of the LED light source 100 in products that require cold light.

[0071] In other examples, warm light elements 32 and cold light elements 31 can also be arranged on the light source board 10 between two adjacent light-emitting units 20 in the same row and at the edge of the light source board 10. The warm light elements 32 and cold light elements 31 can be evenly and alternately arranged in the area of ​​the light source board 10 other than the light-emitting units 20, so that the light emitted by the light-emitting units 20 and the warm and cold light are evenly superimposed and intertwined on the propagation path, further improving the light emission uniformity of the LED light source 100.

[0072] Furthermore, in some embodiments of this application, light-emitting units 20 and / or warm and cool light units 30 may be arranged on the central axis 101. Referring to Figures 7 and 8 (for clarity of the scheme, some light-emitting units 20 in Figure 8 are hidden and shown by the shaded area), light-emitting units 20 and warm and cool light units 30 are arranged on the central axis 101, and the warm and cool light unit 30 includes a cold light element 31.

[0073] The light-emitting unit 20 arranged on the central axis 101 is an axis unit 40. The orientation of the axis unit 40 is the same as that of the light-emitting unit 20 arranged in the first light-emitting area 11, or the orientation of the axis unit 40 is the same as that of the light-emitting unit 20 arranged in the second light-emitting area 12.

[0074] This arrangement allows the light emitted by the axial unit 40 to be uniformly superimposed and interwoven with the light emitted by the light-emitting unit 20 in the first light-emitting area 11 and the light emitted by the light-emitting unit 20 in the second light-emitting area 12 along the propagation path, avoiding the situation where a certain color of light is excessively concentrated on the light source board 10, effectively promoting the mixing effect, and thus effectively ensuring the uniformity of the light emitted by the LED light source 100.

[0075] For the LED light source of this application, the multiple light-emitting units in each row of the first light-emitting area all have the same orientation, and the multiple light-emitting units in each row of the second light-emitting area all have the same orientation. Furthermore, the orientations of the light-emitting units arranged in the first light-emitting area and the light-emitting units arranged in the second light-emitting area within the same row are different. This arrangement ensures both the brightness of the LED light source and the uniformity of the overlapping light emitted from the first and second light-emitting areas. The multiple columns of light-emitting units in the first light-emitting row group and the multiple columns of light-emitting units in the second light-emitting row group are staggered, allowing for a more uniform distribution of light-emitting units on the light source board. This effectively utilizes the space on the surface of the light source board, resulting in a more even distribution of various colors of light in the illumination area. The arrangement of the light-emitting units in the first light-emitting area of ​​the Nth row of the first light-emitting row group facing opposite directions to the light-emitting units in the second light-emitting area of ​​the N+1th row, and the light-emitting units in the first light-emitting area of ​​the Mth row of the second light-emitting row group facing opposite directions to the light-emitting units in the second light-emitting area of ​​the M+1th row, allows chips of different colors to be evenly and dispersedly arranged. This enables the light emitted by the light-emitting units in the first and second light-emitting areas, as well as the light-emitting units in different rows, to be evenly superimposed and interwoven along the propagation path, effectively promoting the mixing effect. This effectively ensures the uniformity of LED light emission and efficiently meets the light emission requirements of photographic and video lighting.

[0076] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or substance of the application, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An LED light source, characterized by include: A light source board has a central axis formed on its surface, passing through the center of the light source board. The areas on the surface of the light source board corresponding to the two sides of the central axis are respectively the first light-emitting area and the second light-emitting area. The light-emitting unit comprises multiple units, which are arranged in a multi-row, multi-column array in the first and second light-emitting areas of the light source plate. Each light-emitting unit includes red, green, and blue light elements arranged in a predetermined manner, such that the light-emitting unit forms a predetermined orientation. All light-emitting units in each row of the first light-emitting area have the same orientation, and all light-emitting units in each row of the second light-emitting area have the same orientation. The orientations of the light-emitting units arranged in the first light-emitting area and the light-emitting units arranged in the second light-emitting area in the same row are different. The light-emitting units on the light source board include several first light-emitting row groups and several second light-emitting row groups. Each first light-emitting row group and each second light-emitting row group includes at least two rows of light-emitting units that span the first light-emitting area and the second light-emitting area. The first light-emitting row groups and the second light-emitting row groups are arranged alternately on the light source board. The multiple rows of light-emitting units in the first light-emitting row group are arranged vertically aligned in each column, and the multiple rows of light-emitting units in the second light-emitting row group are arranged vertically aligned in each column. In adjacent first light-emitting row groups and second light-emitting row groups, the multiple columns of light-emitting units in the first light-emitting row group and the multiple columns of light-emitting units in the second light-emitting row group are arranged in an alternating manner. In any group of the first light-emitting rows, the orientation of the light-emitting unit located in the Nth row of the first light-emitting area is opposite to the orientation of the light-emitting unit located in the N+1th row of the second light-emitting area; in any group of the second light-emitting rows, the orientation of the light-emitting unit located in the Mth row of the first light-emitting area is opposite to the orientation of the light-emitting unit located in the M+1th row of the second light-emitting area.

2. The LED light source of claim 1, wherein, The orientation of the light-emitting units arranged in the first light-emitting area in the same row of the first light-emitting row group is different from that of the light-emitting units arranged in the second light-emitting area, and the orientation of the light-emitting units in two adjacent rows of the first light-emitting row group is different.

3. The LED light source of claim 1, wherein, The orientation of the light-emitting units arranged in the first light-emitting area in the same row of the second light-emitting row group is different from that of the light-emitting units arranged in the second light-emitting area; the orientation of the light-emitting units in two adjacent rows of the second light-emitting row group is different.

4. The LED light source of claim 1, wherein, The red, green, and blue light elements in the light-emitting unit are arranged in a triangular pattern.

5. The LED light source of claim 4, wherein, The line connecting the center of the green light element and the center of the blue light element in each of the light-emitting units is parallel to the central axis, and the red light element is arranged on one side of the line connecting the center of the green light element and the center of the blue light element.

6. The LED light source of claim 4, wherein, The line connecting the center of the green light element and the center of the blue light element in each of the light-emitting units is perpendicular to the central axis, and the red light element is arranged on one side of the line connecting the center of the green light element and the center of the blue light element.

7. The LED light source according to claim 5 or 6, characterized in that In adjacent rows of adjacent light-emitting units, the green light element and the blue light element are arranged in a staggered manner.

8. The LED light source of claim 1, wherein, The LED light source also includes a warm and cool light unit, which includes a cold light element or a cold light element. The warm and cool light unit is disposed on the light source plate and is disposed in the gap between two adjacent light-emitting units.

9. The LED light source of claim 1, wherein, The LED light source also includes a cold and warm light unit, which includes a cold light element and a warm light element. The cold and warm light unit is disposed on the light source plate and in the gap between two adjacent light-emitting units.

10. The LED light source according to claim 8 or 9, characterized in that Both the first light-emitting area and the second light-emitting area are provided with a plurality of warm and cool light units, and the warm and cool light units are provided between two adjacent light-emitting units in the same row and at the edge of the light source plate.

11. The LED light source according to claim 8 or 9, characterized in that Light-emitting units and / or warm and cool light units are arranged on the central axis. The orientation of the light-emitting units arranged on the central axis is the same as the orientation of the light-emitting units arranged in the first light-emitting area that are parallel to the light-emitting unit, or the orientation of the light-emitting units arranged in the second light-emitting area that are parallel to the light-emitting unit.

12. The LED light source according to claim 8 or 9, characterized in that Light-emitting units and warm / cool light units are arranged on the central axis. The orientation of the light-emitting units arranged on the central axis is the same as the orientation of the light-emitting units arranged in the first light-emitting area along the same axis.

13. The LED light source according to claim 8 or 9, characterized in that Light-emitting units and warm / cool light units are arranged on the central axis. The orientation of the light-emitting units arranged on the central axis is the same as the orientation of the light-emitting units arranged in the second light-emitting area along the same axis.

14. The LED light source according to claim 8 or 9, characterized in that, Light-emitting units or warm / cool light units are arranged on the central axis. The orientation of the light-emitting units arranged on the central axis is the same as the orientation of the light-emitting units arranged in the first light-emitting area along the same axis.

15. The LED light source according to claim 8 or 9, characterized in that, Light-emitting units or warm / cool light units are arranged on the central axis. The orientation of the light-emitting units arranged on the central axis is the same as the orientation of the light-emitting units arranged in the second light-emitting area along the same axis.

16. The LED light source of claim 1, wherein, In each of the light-emitting units, the red light element, the green light element, and the blue light element are encapsulated in the same housing.

17. The LED light source of claim 1, wherein, In each of the light-emitting units, the red light element, the green light element, and the blue light element are respectively packaged, and each of the red light element, the green light element, and the blue light element has an independent housing.

18. The LED light source of claim 1, wherein, The distance between any two adjacent light-emitting units in the same row of the first light-emitting area and the second light-emitting area is equal.

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