LED light source module

Abstract

An LED light source module (100), comprising a substrate (10) and light mixing chip groups (20), wherein a first light emitting area (101) and a second light emitting area (102) are symmetrically arranged on the surface of the substrate (10) with respect to a reference axis (11), the plurality of light mixing chip groups (20) are arranged in the first light emitting area (101) and the second light emitting area (102) in an array, chips arranged in the light mixing chip groups (20) in the first light emitting area (101) and chips arranged in the light mixing chip groups (20) in the second light emitting area (102) are symmetrically arranged with respect to the reference axis (11), two adjacent columns of light mixing chip groups (20) are arranged in offset positions, and two adjacent rows of light mixing chip groups (20) are arranged in offset positions. In this way, red light chips (21), green light chips (22) and blue light chips (23) in the light mixing chip groups (20) can be uniformly arranged on the substrate (10), such that the light mixing effect of the light mixing chip groups (20) is better, more uniform light emission is achieved, the compact configuration of the red light chips (21), the green light chips (22) and the blue light chips (23) on the substrate (10) can be ensured to reduce the area of the substrate (10), and the miniaturization design of a filming and photographing lamp can be further facilitated while the uniform light mixing and light emitting requirements of the filming and photographing lamp are satisfied.

Description

LED light source module

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 28, 2023, with application number 202322682299.0 and application name “LED Light Source Module”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The utility model relates to the technical field of light-emitting devices, in particular to an LED light source module. Background Art

[0003] In today's photography and videography situations, in order to obtain better imaging effects, people often use LED photography and video lights as auxiliary light sources for photography and videography.

[0004] To adjust the color of the light source, LED photography and video lights typically have multiple colored light-emitting chips on their substrates, such as RGB. However, when these chips are placed on the substrate, the arrangement of the chips can lead to uneven color, such as a bluish tint in some areas and a reddish tint in others.

[0005] Photographic and video lighting requires high color uniformity. Therefore, how to arrange the multi-colored light-emitting chips to achieve uniform light color is a major challenge in the industry. To achieve this uniformity, existing LED light-emitting chips are often arranged in various rotational configurations. However, this arrangement often results in gaps between the light-emitting chips, which results in a larger light-emitting substrate area and hinders product miniaturization.

[0006] Utility Model Content

[0007] The purpose of the present utility model is to solve the technical problem in the prior art that, in order to meet the high requirements for uniform light emission of photographic and video lighting, LED light-emitting chips are arranged in various rotational arrangements, resulting in a certain gap between the light-emitting chips, making the area of ​​the light-emitting substrate larger, which is not conducive to the miniaturization design of the product.

[0008] In order to solve the above technical problems, the present invention provides an LED light source module, which includes:

[0009] A substrate is circular, wherein any diameter of the substrate serves as a reference axis, and a first light-emitting area and a second light-emitting area are symmetrically provided on the surface of the substrate about the reference axis;

[0010] There are multiple light-mixing chip groups, and the multiple light-mixing chip groups are arranged in an array in the first light-emitting area and the second light-emitting area. Each light-mixing chip group includes a red light chip, a green light chip, and a blue light chip. The chips in the light-mixing chip group arranged in the first light-emitting area and the chips in the light-mixing chip group arranged in the second light-emitting area are arranged axially symmetrically about the reference axis. The light-mixing chip groups in two adjacent columns are staggered, and the light-mixing chip groups in two adjacent rows are staggered.

[0011] In some embodiments of the present application, the chips in the optical mixing chipset are arranged sequentially along the length direction of the optical mixing chipset.

[0012] In some embodiments of the present application, the length direction of the light mixing chipset is perpendicular to the extension direction of the reference axis.

[0013] In some embodiments of the present application, a plurality of the mixing chip groups are arranged at intervals on the reference axis, and the mixing chip group arranged on the reference axis is an on-axis chip group; the type of chips in the on-axis chip group close to the first light-emitting area is different from the type of chips in the mixing chip group arranged on the first light-emitting area close to the reference axis.

[0014] In some embodiments of the present application, the type of the chips in the on-axis chipset close to the second light-emitting area is different from the type of the chips in the light-mixing chipset arranged on the second light-emitting area close to the reference axis.

[0015] In some embodiments of the present application, the plurality of light mixing chip groups arranged on the substrate constitute a plurality of light mixing units, each of the light mixing units includes four adjacent light mixing chip groups, and the line connecting the centers of the four light mixing chip groups is a diamond shape.

[0016] In some embodiments of the present application, the area enclosed by the four mixing chip groups in each of the mixing units is the installation area; the LED light source module also includes a plurality of cold and warm chip groups arranged on the substrate, and each of the cold and warm chip groups includes a warm light chip and a cold light chip; the cold and warm chip groups are arranged on the outside of the installation area and the mixing chip group.

[0017] In some embodiments of the present application, the warm and cold chip groups arranged in the installation area each include two warm light chips and two cold light chips, and the two warm light chips are arranged alternately or adjacent to the two cold light chips.

[0018] In some embodiments of the present application, the plurality of cooling and heating chip groups located in the mounting area on the substrate constitute a plurality of cooling and heating units, and each cooling and heating unit includes four adjacently arranged cooling and heating chip groups.

[0019] In some embodiments of the present application, the line connecting the centers of the four cooling and heating chip groups is a diamond shape.

[0020] In some embodiments of the present application, a diameter on the substrate that is perpendicular to the reference axis is a reference axis, and the multiple light mixing chip groups on both sides of the reference axis are symmetrically arranged with respect to the reference axis.

[0021] In some embodiments of the present application, the plurality of cooling and heating chip groups are arranged in an array on the substrate, and the warm light chips and the cold light chips in each row of the plurality of cooling and heating chip groups are symmetrically and alternately arranged on both sides of the reference axis.

[0022] In some embodiments of the present application, the two sides of the reference axis are the first side and the second side, respectively. Among the multiple cold and warm chip groups in the same row, the types of chips in the cold and warm chip groups arranged in the same row on the first side of the reference axis are the same, and the types of chips in the cold and warm chip groups arranged in the same row on the second side of the reference axis are opposite to the types of chips in the cold and warm chip groups arranged in the same row on the first side of the reference axis.

[0023] In some embodiments of the present application, the cooling and warming chip groups and the light mixing chip groups on the substrate are alternately arranged in sequence in the extending direction of the reference axis and in a direction parallel to the reference axis.

[0024] In some embodiments of the present application, in a direction parallel to the reference axis in the direction in which the reference axis extends, the cooling and warming chip groups and the light mixing chip groups on the substrate are alternately arranged in sequence.

[0025] It can be seen from the above technical solution that the beneficial effects of the present invention are as follows: the LED light source module of the present invention includes a substrate and a mixing chip group, and the surface of the substrate is symmetrically provided with a first light-emitting area and a second light-emitting area about a reference axis, and a plurality of mixing chip groups are arranged in an array in the first light-emitting area and the second light-emitting area, and the chips in the mixing chip group arranged in the first light-emitting area and the chips in the mixing chip group arranged in the second light-emitting area are arranged axially symmetrically about the reference axis, the mixing chip groups in two adjacent columns are staggered, and the mixing chip groups in two adjacent rows are staggered, so that the red light chip, green light chip and blue light chip in the mixing chip group can be evenly arranged on the substrate, so that the light mixing effect between the mixing chip groups is better and the light uniformity is better, and the compact arrangement of the red light chip, green light chip and blue light chip on the substrate can be ensured to reduce the area of ​​the substrate, while meeting the uniform light mixing and light emission requirements of the photographic and video lights, it can also be conducive to the miniaturized design of the photographic and video lights. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of an embodiment of an LED light source module of the present invention.

[0027] FIG2 is a schematic structural diagram of another embodiment of the LED light source module of the present invention.

[0028] FIG3 is a schematic diagram of the arrangement of the cooling and heating chipset in the LED light source module shown in FIG2 .

[0029] The accompanying drawings are marked as follows: 100, LED light source module; 10, substrate; 101, first light-emitting area; 102, second light-emitting area; 103, mounting area; 11, reference axis; 12, reference axis; 20, light-mixing chip group; 201, light-mixing unit; 2011, on-axis chip group; 21, red light chip; 22, green light chip; 23, blue light chip; 30, cold and warm chip group; 301, cold and warm unit; 31, warm light chip; 32, cold light chip. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative in nature and not to limit the present invention.

[0031] In the description of this application, it should be understood that in the embodiments shown in the drawings, indications of directions 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 devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions will also change accordingly.

[0032] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0033] Referring to FIG. 1 , an embodiment of the present application provides an LED light source module 100 , which forms a light mixing unit by arranging and packaging different light-emitting chips in a certain manner and arrangement density. This enables light mixing between different light-emitting chips, and makes the overall structure of the LED light source module 100 compact, effectively reducing the area of ​​the substrate 10 , and facilitating the miniaturization design of a photographic or video light.

[0034] The LED light source module 100 of this embodiment includes a substrate 10 and a light mixing chip group 20 , wherein the substrate 10 is circular, any diameter of the substrate 10 is a reference axis 11 , and a first light-emitting area 101 and a second light-emitting area 102 are symmetrically provided on the surface of the substrate 10 about the reference axis 11 .

[0035] Multiple light-mixing chip groups 20 are provided, arranged in an array in the first light-emitting area 101 and the second light-emitting area 102. Each light-mixing chip group 20 includes a red light chip 21 (labeled R), a green light chip 22 (labeled G), and a blue light chip 23 (labeled B). The chips in the light-mixing chip group 20 arranged in the first light-emitting area 101 and the chips in the light-mixing chip group 20 arranged in the second light-emitting area 102 are arranged axially symmetrically about the reference axis 11. The light-mixing chip groups 20 in two adjacent columns are arranged in an alternating pattern, and the light-mixing chip groups 20 in two adjacent rows are arranged in an alternating pattern.

[0036] In this embodiment, the substrate 10 is circular, and any diameter of the substrate 10 can be selected as the reference axis 11 , and the diameter of the substrate 10 perpendicular to the reference axis 11 is the reference axis 12 .

[0037] The reference axis 11 divides the surface of the substrate 10 into two parts, namely a first light-emitting area 101 and a second light-emitting area 102. The first light-emitting area 101 and the second light-emitting area 102 are symmetrically arranged about the reference axis 11.

[0038] In this embodiment, each optical mixing chip group 20 includes a red chip 21, a green chip 22, and a blue chip 23. The chips in the optical mixing chip group 20 are arranged sequentially along the length of the optical mixing chip group 20, which is perpendicular to the extension direction of the reference axis 11. The order of arrangement of the red chip 21, green chip 22, and blue chip 23 in each optical mixing chip group 20 is not limited; as long as the three chips are arranged sequentially along the length of the optical mixing chip group 20 to form a straight-line elongated structure, the arrangement is satisfactory.

[0039] Multiple light-mixing chip groups 20 are arranged on the first light-emitting area 101 and the second light-emitting area 102 of the substrate 10. The multiple light-mixing chip groups 20 are arranged in an array on the surface of the substrate 10. The length direction of each light-mixing chip group 20 is perpendicular to the extension direction of the reference axis 11.

[0040] In this embodiment, the chips in the light-mixing chip group 20 arranged in the first light-emitting area 101 and the chips in the light-mixing chip group 20 arranged in the second light-emitting area 102 are arranged axially symmetrically about the reference axis 11. The light-mixing chip groups 20 in two adjacent columns are arranged in a staggered manner, and the light-mixing chip groups 20 in two adjacent rows are arranged in a staggered manner.

[0041] This arrangement enables the red light chip 21, the green light chip 22, and the blue light chip 23 in the light mixing chip group 20 to be evenly arranged on the substrate 10, so as to achieve a better light mixing effect and better luminous uniformity among the light mixing chip group 20, and can ensure the compact arrangement of the red light chip 21, the green light chip 22, and the blue light chip 23 on the substrate 10 to reduce the area of ​​the substrate 10. While meeting the uniform light mixing and luminous requirements of the photographic and video lighting, it can also be conducive to the miniaturized design of the photographic and video lighting.

[0042] In this embodiment, a plurality of light-mixing chip groups 20 are arranged at intervals on the reference axis 11 of the substrate 10 . The light-mixing chip group 20 arranged on the reference axis 11 is an on-axis chip group 2011 .

[0043] The type of chips in the on-axis chipset 2011 close to the first light-emitting area 101 is different from the type of chips in the mixing light chipset 20 arranged on the first light-emitting area 101 close to the reference axis 11; the type of chips in the on-axis chipset 2011 close to the second light-emitting area 102 is different from the type of chips in the mixing light chipset 20 arranged on the second light-emitting area 102 close to the reference axis 11.

[0044] This arrangement enables the red light chip 21, green light chip 22 and blue light chip 23 arranged on the substrate 10 to be distributed more evenly, avoiding overlapping and mixing of the same type of chips and affecting the mixing effect, ensuring the uniformity of the mixing of the multiple mixing chip groups 20 and the lighting effect.

[0045] Furthermore, in this embodiment, the plurality of light mixing chip groups 20 arranged on the substrate 10 constitute a plurality of light mixing units 201 . Each light mixing unit 201 includes four adjacent light mixing chip groups 20 , and the line connecting the centers of the four light mixing chip groups 20 is a diamond shape.

[0046] In this embodiment, the area surrounded by the four light-mixing chip groups 20 in each light-mixing unit 201 is a mounting area 103 . A plurality of mounting areas 103 are formed on the substrate 10 , and the plurality of mounting areas 103 are arranged at intervals.

[0047] In combination with Figures 2 and 3, in another embodiment of the present application, the LED light source module 100 also includes a plurality of warm and cold chip groups 30 arranged on the substrate 10, each warm and cold chip group 30 includes adjacently arranged warm light chips 31 (marked as W) and cold light chips 32 (marked as C), and the warm and cold chip groups 30 are arranged on the outside of the mounting area 103 and the mixed light chip group 20.

[0048] The cold and warm chipset group 30 is arranged in the installation area 103 formed by each mixing unit 201. The red light chip 21, green light chip 22 and blue light chip 23 in each mixing chip group 20 in the mixing unit 201 can mix light with the warm light chip 31 and cold light chip 32 in the cold and warm chipset 30, so that the white light synthesized by each mixing chip group 20 is superimposed on the cold and warm white light synthesized by its corresponding cold and warm chipset 30, making the color of the light source more uniform and improving the mixing effect.

[0049] In this embodiment, the heating and cooling chipset 30 disposed in the mounting area 103 each includes two warm light chips and two cold light chips 32. The two warm light chips 31 are arranged alternately or adjacently with the two cold light chips 32. This arrangement enhances the light mixing effect of the light mixing chipset 20 and the heating and cooling chipset 30, resulting in better lighting efficiency for the LED light source module 100.

[0050] In this embodiment, the plurality of cooling and heating chip groups 30 located in the mounting area 103 on the substrate 10 constitute a plurality of cooling and heating units 301 . Each cooling and heating unit 301 includes four adjacent cooling and heating chip groups 30 , and the line connecting the centers of the four cooling and heating chip groups 30 is a diamond shape.

[0051] This arrangement enables the heating and cooling chipset group 30 and the light mixing chipset group 20 arranged on the mounting area 103 of the substrate 10 to be arranged in an array on the substrate 10 as a whole, making the heating and cooling chipset group 30 and the light mixing chipset group 20 more compactly arranged on the substrate 10, thereby effectively reducing the area of ​​the substrate 10 and being more conducive to realizing the miniaturized design of the LED light source module 100.

[0052] In the extension direction of the reference axis 11 and in the direction parallel to the reference axis 11, the cold and warm chip groups 30 and the mixed light chip groups 20 are arranged alternately in sequence; in the extension direction of the reference axis 12 and in the direction parallel to the reference axis 12, the cold and warm chip groups 30 and the mixed light chip groups 20 are arranged alternately in sequence.

[0053] In this embodiment, multiple heating and cooling chip sets 30 are arranged in an array on the substrate 10. Within each row of the heating and cooling chip sets 30, the warm light chips 31 and cold light chips 32 are symmetrically arranged alternately on either side of the reference axis 12. This arrangement allows for a more uniform arrangement of the warm light chips 31 and cold light chips 32 on the substrate 10, enhancing the light mixing and uniformity between the heating and cooling chip sets 30 and the light mixing chip set 20.

[0054] Furthermore, in this embodiment, the chips in the light-mixing chip group 20 in the first light-emitting area 101 and the chips in the light-mixing chip group 20 in the second light-emitting area 102 are arranged symmetrically about the reference axis 11. On both sides of the reference axis 12, the chips in the plurality of light-mixing chip groups 20 are also arranged symmetrically about the reference axis 12.

[0055] In this embodiment, the plurality of heating and cooling chip groups 30 are arranged in an array on the substrate 10 , and the warm light chips 31 and the cold light chips 32 in each row of the plurality of heating and cooling chip groups 30 are symmetrically arranged alternately on both sides of the reference axis 12 .

[0056] Specifically, in this embodiment, the two sides of the reference axis 12 are the first side and the second side, respectively. Within the same row of multiple cooling and heating chip sets 30, the chips in the cooling and heating chip sets 30 arranged in the same row on the first side of the reference axis 12 are of the same type, while the chips in the cooling and heating chip sets 30 arranged in the same row on the second side of the reference axis 12 are of opposite types to those in the cooling and heating chip sets 30 arranged in the same row on the first side of the reference axis 12. This arrangement allows for a more uniform arrangement of the warm light chips 31 and the cold light chips 32 on the substrate 10, enhancing the light mixing and uniforming effect between the cooling and heating chip sets 30 and the light mixing chip set 20.

[0057] The LED light source module of this embodiment includes a substrate and a light-mixing chip group. The surface of the substrate is symmetrically provided with a first light-emitting area and a second light-emitting area about a reference axis. A plurality of light-mixing chip groups are arranged in an array in the first light-emitting area and the second light-mixing chip group. The chips in the light-mixing chip group arranged in the first light-emitting area and the chips in the light-mixing chip group arranged in the second light-emitting area are arranged symmetrically about the reference axis. The light-mixing chip groups in two adjacent columns are arranged in an interlaced manner, and the light-mixing chip groups in two adjacent rows are arranged in an interlaced manner. This allows the red light chips, green light chips, and blue light chips in the light-mixing chip group to be evenly arranged on the substrate, thereby achieving a better light mixing effect and better light uniformity between the light-mixing chip groups. It also ensures a compact arrangement of the red light chips, green light chips, and blue light chips on the substrate, thereby reducing the area of ​​the substrate. While meeting the uniform light mixing and light emission requirements of a photography and video light, it is also conducive to the miniaturization design of the photography and video light.

[0058] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. An LED light source module, characterized in that: include: The substrate is circular, any diameter of the substrate is a reference axis, and a first light-emitting area and a second light-emitting area are symmetrically arranged on the surface of the substrate about the reference axis; There are multiple light-mixing chip groups, and the multiple light-mixing chip groups are arranged in an array in the first light-emitting area and the second light-emitting area, and each of the light-mixing chip groups includes a red light chip, a green light chip and a blue light chip; the chips in the light-mixing chip group arranged in the first light-emitting area and the chips in the light-mixing chip group arranged in the second light-emitting area are arranged axially symmetrically about the reference axis; the light-mixing chip groups in two adjacent columns are arranged in a staggered manner, and the light-mixing chip groups in two adjacent rows are arranged in a staggered manner.

2. The LED light source module according to claim 1, characterized in that: The chips in the light mixing chipset are arranged in sequence along the length direction of the light mixing chipset.

3. The LED light source module according to claim 2, characterized in that: The length direction of the light mixing chipset is perpendicular to the extension direction of the reference axis.

4. The LED light source module according to claim 1, characterized in that: A plurality of the light-mixing chip groups are arranged at intervals on the reference axis, and the light-mixing chip group arranged on the reference axis is an on-axis chip group; the type of chips in the on-axis chip group close to the first light-emitting area is different from the type of chips in the light-mixing chip group arranged on the first light-emitting area close to the reference axis.

5. The LED light source module according to claim 4, characterized in that: The type of the chips in the on-axis chipset group close to the second light-emitting area is different from the type of the chips in the light-mixing chipset group arranged on the second light-emitting area close to the reference axis.

6. The LED light source module according to claim 1, characterized in that: The plurality of light mixing chip groups arranged on the substrate constitute a plurality of light mixing units, each of the light mixing units comprises four adjacently arranged light mixing chip groups, and a line connecting the centers of the four light mixing chip groups is a rhombus.

7. The LED light source module according to claim 6, characterized in that: The area surrounded by the four mixing light chip groups in each of the mixing light units is the installation area; the LED light source module also includes a plurality of cold and warm chip groups arranged on the substrate, each of the cold and warm chip groups includes a warm light chip and a cold light chip; the cold and warm chip groups are arranged on the outside of the installation area and the mixing light chip group.

8. The LED light source module according to claim 7, characterized in that: The warm and cold chip groups arranged in the installation area each include two warm light chips and two cold light chips, and the two warm light chips are arranged alternately or adjacently with the two cold light chips.

9. The LED light source module according to claim 7 or 8, characterized in that: The plurality of cooling and heating chip groups located in the mounting area on the substrate constitute a plurality of cooling and heating units, and each cooling and heating unit includes four adjacently arranged cooling and heating chip groups.

10. The LED light source module according to claim 9, characterized in that: The line connecting the centers of the four cooling and heating chipsets is a diamond shape.

11. The LED light source module according to claim 7, characterized in that: The diameter on the substrate that is perpendicular to the reference axis is the reference axis, and the plurality of light mixing chip groups on both sides of the reference axis are arranged symmetrically with respect to the reference axis.

12. The LED light source module according to claim 11, characterized in that: The plurality of cold and warm chip groups are arranged in an array on the substrate, and the warm light chips and the cold light chips in the plurality of cold and warm chip groups in each row are symmetrically and alternately arranged on both sides of the reference axis.

13. The LED light source module according to claim 12, characterized in that: The two sides of the reference axis are respectively a first side and a second side. Among the multiple cold and warm chip groups in the same row, the types of chips in the cold and warm chip groups arranged in the same row on the first side of the reference axis are the same, and the types of chips in the cold and warm chip groups arranged in the same row on the second side of the reference axis are opposite to the types of chips in the cold and warm chip groups arranged in the same row on the first side of the reference axis.

14. The LED light source module according to claim 11, characterized in that: In the extending direction of the reference axis and in the direction parallel to the reference axis, the cold and warm chip groups and the mixed light chip groups on the substrate are arranged alternately in sequence.

15. The LED light source module according to claim 14, characterized in that: In a direction parallel to the reference axis in the extending direction of the reference axis, the cold and warm chip groups and the mixed light chip groups on the substrate are arranged alternately in sequence.

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