LED light source piece and LED light source module

Abstract

The utility model provides an LED light source piece and an LED light source module, the LED light source piece comprises a light source plate and a plurality of light-emitting devices arranged on the light source plate in a matrix mode, and the light-emitting devices comprise cold light devices and warm light devices. Wherein the number of the cold light devices and the number of the warm light devices in each row of the light-emitting devices are the same, and the number of the cold light devices and the number of the warm light devices in each column of the light-emitting devices are the same, so that reasonable matching of the number of the cold light devices and the number of the warm light devices in each row and each column can be realized, and light with intermediate color temperature can be generated; therefore, the harmony and uniformity of colors are realized; the cold light devices and the warm light devices are arranged in a central symmetry mode with respect to the center of the main body light emitting unit, so that light rays emitted by the cold light devices and light rays emitted by the warm light devices can be evenly overlapped and interwoven on a propagation path when propagating in space, the mixing effect is effectively promoted, even mixed light is formed on a receiving face, and the light emitting efficiency is improved. And the uniformity of light rays is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a light emitting device technical field, especially a kind of LED light source and LED light source module. BACKGROUND

[0002] In today's photography and video shooting occasions, in order to get better imaging effect, people often use LED photography and video shooting lamp as the auxiliary light source of photography and video shooting.

[0003] In order to meet the light effect needs of shooting, part of LED photography and video shooting lamp will be installed with cold light and warm light dual-color light emitting device on its light source board to realize the switching of dual-color light. But when the cold light and warm light light emitting device is installed on the light source board, it is easy to cause the LED photography and video shooting lamp to emit light unevenly due to the arrangement of light emitting device, for example, part of the area is cold in color temperature, and the other part of the area is warm in color temperature.

[0004] And the photography and video shooting lamp has high requirement on the uniformity of light emitting color, therefore, how to arrange different kinds of light emitting device to improve the uniformity of light color is a major problem in the industry. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of LED light source, the arrangement design of cold light and warm light light emitting device on light source board is to meet the high requirement of photography and video shooting lamp on the uniformity of light emitting color.

[0006] To solve the above technical problems, the utility model provides a kind of LED light source, it includes light source board and multiple light emitting device for emitting light arranged on the light source board, multiple light emitting device is arranged on the light source board in matrix, and all light emitting device on the light source board constitutes main body light emitting unit together;

[0007] The light emitting device includes cold light device and warm light device with different light colors, and the cold light device and the warm light device are provided with multiple;The number of the cold light device in each row of the light emitting device and the number of the warm light device are same, the number of the cold light device in each column of the light emitting device and the number of the warm light device are same, and multiple the cold light device and multiple the warm light device are arranged symmetrically about the center of the main body light emitting unit;Multiple the cold light device and multiple the warm light device located in edge row are arranged alternately, and multiple the cold light device and multiple the warm light device located in edge column are arranged alternately.

[0008] In some embodiments of the application, the light source board is circular, the light source board forms a central axis, and the center of the light source board is arranged concentrically with the center of the main body light emitting unit.

[0009] The middle axis passes through the center of the light source plate, and the area of the light emitting device provided by the light source plate corresponds to two sides of the middle axis to form a first light emitting area and a second light emitting area respectively; all light emitting devices in the main light emitting unit except those located in the edge column and those located in the edge row constitute a middle light emitting unit.

[0010] The plurality of light emitting devices in the middle light emitting unit are arranged in a matrix, and the light colors of the light emitting devices in the first light emitting area and the second light emitting area on both sides of the middle axis in the same row of the middle light emitting unit are different.

[0011] In some embodiments of the present application, the light colors of the plurality of light emitting devices in each row of the middle light emitting unit located in the first light emitting area are the same, and the light colors of the plurality of light emitting devices in each row of the middle light emitting unit located in the second light emitting area are the same.

[0012] In some embodiments of the present application, the plurality of cold light devices and the plurality of warm light devices in each column of light emitting devices in the middle light emitting unit are arranged in an interleaved manner.

[0013] In some embodiments of the present application, the number of light emitting devices arranged in the first light emitting area is consistent with the number of light emitting devices arranged in the second light emitting area.

[0014] In some embodiments of the present application, the light emitting devices of the same light color arranged on the diagonal of the main light emitting unit are arranged in a central symmetric manner about the center of the main light emitting unit.

[0015] In some embodiments of the present application, the light source plate is circular, and the circular outer contour of the light source plate constitutes an inscribed circle of the main light emitting unit.

[0016] The utility model also provides a LED light source module, it includes substrate, set up electrode and above-mentioned LED light source spare on the substrate, the LED light source spare and the electrode are arranged on the both sides surface of the substrate respectively, the electrode is connected with the light emitting device electricity.

[0017] In some embodiments of the present application, the electrode includes a cold light anode and a cold light cathode electrically connected to all the cold light devices, and a warm light anode and a warm light cathode electrically connected to all the warm light devices.

[0018] In some embodiments of the present application, the outer contour of the substrate is rectangular, and the cold light anode, the cold light cathode, the warm light anode and the warm light cathode are arranged one by one at the four top corner positions of the substrate.

[0019] The LED light source piece and the LED light source module have the advantages that the number of the cold light devices and the number of the warm light devices in each row of the light emitting devices are the same, and the number of the cold light devices and the number of the warm light devices in each column of the light emitting devices are the same, so that the reasonable proportion of the number of the cold light devices and the number of the warm light devices in each row and each column can be realized, the light of the intermediate color temperature can be generated, the color harmony and uniformity can be realized, and the multiple cold light devices and the multiple warm light devices are arranged in the central symmetry with respect to the center of the main light emitting unit, so that the light emitted by the cold light devices and the light emitted by the warm light devices can be uniformly superimposed and interlaced on the propagation path when the light propagates in the space, the mixing effect can be effectively promoted, and the uniformity of the light of the lamp is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of an embodiment of the LED light source piece of the utility model.

[0021] Figure 2 is a structural schematic view of an embodiment of the LED light source module of the utility model.

[0022] Figure 3 is Figure 2 the structural schematic view of the back side direction of the LED light source module.

[0023] The following is the explanation of the reference signs: 100, LED light source module; 10, LED light source piece; 101, main light emitting unit; 102, middle light emitting unit; 103, edge row; 104, edge column; 105, edge light emitting unit; 11, light source plate; 110, middle axis; 111, first light emitting area; 112, second light emitting area; 12, light emitting device; 121, cold light device; 122, warm light device; 20, substrate; 21, first surface; 22, second surface; 31, cold light anode; 32, cold light cathode; 34, warm light anode; 35, warm light cathode. DETAILED DESCRIPTION

[0024] The typical embodiments embodying the features and advantages of the utility model will be described in detail in the following description. It should be understood that the utility model can have various changes on different embodiments, which do not deviate from the scope of the utility model, and the description and drawings in the essence are used as the description, not to limit the utility model.

[0025] In the description of the present application, it should be understood that the indication of direction or position relationship (such as up, down, left, right, front and back, etc.) in the embodiments shown in the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. These indications are appropriate when the elements are in the positions shown in the drawings. If the position of these elements changes, the indications of these directions also change accordingly.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] Referring to Figure 1 An embodiment of the present application provides an LED light source 10, which comprises a light source board 11 and a plurality of light emitting devices 12 arranged on the light source board 11 and used for emitting light, the plurality of light emitting devices 12 are arranged in a matrix on the light source board 11 and collectively constitute a main light emitting unit 101.

[0028] The light emitting devices 12 include cold light devices 121 (identified as C in the drawings) and warm light devices 122 (identified as W in the drawings) with different light colors, and a plurality of cold light devices 121 and a plurality of warm light devices 122 are provided. The number of cold light devices 121 and the number of warm light devices 122 in each row of light emitting devices 12 are the same, the number of cold light devices 121 and the number of warm light devices 122 in each column of light emitting devices 12 are the same, and the plurality of cold light devices 121 and the plurality of warm light devices 122 are arranged in central symmetry about the center of the main light emitting unit 101.

[0029] In the present application, the light source board 11 is used to carry the light emitting devices 12, which can provide electrical connection and physical support for the light emitting devices 12 to realize electrical connection conduction and fixed assembly of the light emitting devices 12, so as to realize the light emitting function of the LED light source 10.

[0030] The light emitting devices 12 can be fixedly welded on the light source board 11, and the connection of each light emitting device 12 can be realized through a circuit. The light source board 11 can include a circuit layer, an insulating layer and a light source arrangement area, wherein the circuit layer is used for the arrangement of the circuit to connect the light emitting devices 12 and realize electrical conduction. The insulating layer can play the role of insulation and isolation to ensure the safety and stability of the circuit. The light source arrangement area can be provided with a welding point to fixedly mount the light emitting devices 12.

[0031] In the present application, the light emitting device 12 can convert electrical energy into light energy, thereby realizing the light emission of the LED light source 10. The LED light source 10 can include a plurality of light emitting devices 12, which can be arranged in a matrix on the light source board 11, and all the light emitting devices 12 on the light source board 11 collectively constitute the main light emitting unit 101.

[0032] The LED light source 10 can be applied to multiple fields such as lighting, display, communication, and medical treatment. In the field of lighting, the LED light source 10 can be used to manufacture various lamps and light emitting devices; in the field of medical treatment, the LED light source 10 can be used to prepare medical detection and treatment devices.

[0033] In the embodiments of the present application, the light emitting device 12 can include cold light devices 121 and warm light devices 122 with different light colors. The warm light devices 122 emit light with a warm color tone, and the color temperature is generally below 3000K. The cold light devices 121 emit light with a cold color tone, and the color temperature is generally above 5000K.

[0034] The warm light devices 122 and the cold light devices 121 can each include an LED chip and a phosphor. The LED chip can be a blue LED chip, an ultraviolet LED chip, etc., and the phosphor can be yellow phosphor, red, green, and blue three-color phosphor. Specifically, the phosphor can be excited by the light emitted by the LED chip to produce warm white light or cold white light.

[0035] In the present application, the plurality of light emitting devices 12 on the light source board 11 are arranged in a matrix, wherein the number of cold light devices 121 and the number of warm light devices 122 in each row of light emitting devices 12 are the same, the number of cold light devices 121 and the number of warm light devices 122 in each column of light emitting devices 12 are the same, and the plurality of cold light devices 121 and the plurality of warm light devices 122 are arranged in central symmetry about the center of the main light emitting unit 101.

[0036] The number of cold light devices 121 and the number of warm light devices 122 in each row of light emitting devices 12 are the same, the number of cold light devices 121 and the number of warm light devices 122 in each column of light emitting devices 12 are the same, which can realize the reasonable matching of the number of cold light devices 121 and the number of warm light devices 122 in each row and each column, so as to produce light with an intermediate color temperature, thereby realizing the harmony and uniformity of color; and the plurality of cold light devices 121 and the plurality of warm light devices 122 are arranged in central symmetry about the center of the main light emitting unit 101, so that the light emitted by the cold light devices 121 and the light emitted by the warm light devices 122 can be uniformly superimposed and interlaced on the propagation path when propagating in space, thereby effectively promoting the mixing effect and forming uniform mixed light on the receiving surface.

[0037] In some embodiments of the present application, the outer contour of the main light unit 101 formed by all the light emitting devices 12 on the light source board 11 is square. In other embodiments, the outer contour of the main light unit 101 can also be rectangular based on the number and arrangement of the light emitting devices 12.

[0038] In the main light unit 101, all the light emitting devices 12 except the light emitting devices 12 in the edge light unit 105 form a middle light unit 102.

[0039] In some embodiments of the present application, the cold light devices 121 and the warm light devices 122 in the edge row 103 are arranged in an interlaced manner, and the cold light devices 121 and the warm light devices 122 in the edge column 104 are arranged in an interlaced manner.

[0040] Such arrangement can achieve uniform arrangement of the cold light devices 121 and the warm light devices 122 in the edge light unit 105 around the periphery of the main light unit 101, and each cold light device 121 in the edge light unit 105 is flanked by warm light devices 122, and each warm light device 122 is flanked by cold light devices 121.

[0041] When the cold light devices 121 and the warm light devices 122 in the edge light unit 105 emit light, the light emitted by the cold light devices 121 and the light emitted by the warm light devices 122 can be uniformly emitted and mixed from all directions, so as to avoid the situation that the cold light or the warm light is too concentrated at the periphery of the LED light source 10, and ensure the effectiveness of uniform light mixing.

[0042] Further, in some embodiments of the present application, the light source board 11 is circular, and the circular contour of the light source board 11 forms the circumscribed circle of the main light unit 101.

[0043] Specifically, the vertex of the light emitting device 12 located at the vertex position in the main light unit 101 abuts against the edge of the light source board 11. Such arrangement can maximize the area of the main light unit 101 arranged on the light source board 11, i.e., the arrangement of the maximum number of light emitting devices 12 on the light source board 11, so as to ensure the effective light emitting brightness of the LED light source 10.

[0044] In the present embodiment, the light source board 11 is formed with a central axis 110 passing through the center of the light source board 11. The center of the light source board 11 is arranged concentrically with the center of the main light unit 101.

[0045] The light source plate 11 is used to set the region of the light emitting device 12 corresponding to the two sides of the central axis 110 can form a first light emitting area 111 and a second light emitting area 112 respectively. Figure 1 The first light emitting area 111 shown in the middle is the left side area of the central axis 110, and the second light emitting area 112 is the right side area of the central axis 110.

[0046] It should be noted that the left side area is the first light emitting area 111, and the right side area is the second light emitting area 112, which is only described according to the case shown in the figure, and not necessarily the first and second light emitting areas (111, 112) on the left and right sides of the light source plate 11 in this application. Figure 1

[0047] In some embodiments of the application, the plurality of light emitting devices 12 in the middle light emitting unit 102 are arranged in a matrix, and the light colors of the light emitting devices 12 in the first light emitting area 111 and the second light emitting area 112 on both sides of the central axis 110 in the same row in the middle light emitting unit 102 are different.

[0048] Among them, the light colors of the plurality of light emitting devices 12 in the first light emitting area 111 in each row in the middle light emitting unit 102 are the same, and the light colors of the plurality of light emitting devices 12 in the second light emitting area 112 in each row in the middle light emitting unit 102 are the same.

[0049] Specifically, for the middle light emitting unit 102, among the plurality of light emitting devices 12 in the same row, the plurality of light emitting devices 12 in the first light emitting area 111 can all be warm light devices 122, and the plurality of light emitting devices 12 in the second light emitting area 112 can all be cold light devices 121. Or, in some examples, for the middle light emitting unit 102, among the plurality of light emitting devices 12 in the same row, the plurality of light emitting devices 12 in the first light emitting area 111 can all be cold light devices 121, and the plurality of light emitting devices 12 in the second light emitting area 112 can all be warm light devices 122.

[0050] Such arrangement can realize the staggered arrangement of warm light devices 122 and cold light devices 121 in the middle light emitting unit 102 on both sides of the central axis 110, and the light emitted by the cold light devices 121 on both sides of the central axis 110 and the light emitted by the warm light devices 122 can be uniformly emitted and mixed from all directions, so as to avoid the case that the local cold light or warm light is too concentrated in the middle area of the LED light source 10, and ensure the effectiveness of uniform mixing of light.

[0051] In some examples, the number of light emitting devices 12 arranged in the first light emitting area 111 is consistent with the number of light emitting devices 12 arranged in the second light emitting area 112.

[0052] ​The arrangement can achieve consistency in the number of cold light devices 121 and warm light devices 122 in the middle region of the LED light source 10, so that the cold light devices 121 and warm light devices 122 in the middle light emitting unit 102 are distributed relatively evenly, can be mixed more uniformly in space, reduce color unevenness and color spot phenomenon, so that the color consistency of the illumination area is better, and the color of the light is more stable and uniform when observed from different angles.

[0053] In some examples, in each column of light emitting devices 12 in the middle light emitting unit 102, the plurality of cold light devices 121 and the plurality of warm light devices 122 are arranged in an interleaved manner.

[0054] In the middle light emitting unit 102, the plurality of cold light devices 121 and the plurality of warm light devices 122 in each column are arranged in an interleaved manner, which can make the light emitted by the cold light devices 121 and the warm light devices 122 intermingle in a very close distance, so that the light can be more fully superimposed, scattered and mixed during propagation, greatly reducing the uneven distribution of light in space, making the light in the entire illumination area more uniform in color temperature, brightness, etc., avoiding the phenomenon of local cold light or warm light being too much, and improving the uniformity of light mixing.

[0055] Further, referring to Figure 2 and Figure 3 An embodiment of the present application also provides an LED light source module 100, which comprises a substrate 20, electrodes arranged on the substrate 20, and the above-mentioned LED light source 10. The structure of the LED light source 10 has been described above and will not be described again.

[0056] In some embodiments of the present application, the substrate 20 can be rectangular, and the opposite two side surfaces of the substrate 20 can be a first surface 21 and a second surface 22, respectively. The LED light source 10 is arranged on the first surface 21, the light source plate 11 is fixed on the first surface 21, and the light emitting device 12 is arranged on the surface of the light source plate 11 away from the substrate 20. The electrodes are arranged on the second surface 22, and the electrodes are electrically connected with the light emitting device 12.

[0057] The LED light source 10 on the substrate 20 can be arranged in multiple numbers, and the substrate 20 can provide a platform for mechanical support and electrical connection of the LED light source 10, so that multiple LED light sources 10 can be connected and work cooperatively to realize the light emitting and lighting function of different devices.

[0058] The LED light source piece 10 and the electrodes are arranged on the two side surfaces of the substrate 20 respectively, which can avoid the electrodes occupying the design area of the LED light source piece 10 on the substrate 20, save the setting area of the substrate 20, and realize the effective arrangement of the LED light source piece 10 on the substrate 20, which is beneficial to the miniaturization design of the photographic lamp made of the LED light source module 100, and can ensure the overall luminous brightness of the photographic lamp.

[0059] In some embodiments of the present application, the electrodes include a cold light anode 31 and a cold light cathode 32 electrically connected to all the cold light devices 121, and a warm light anode 34 and a warm light cathode 35 electrically connected to all the warm light devices 122. The electrodes can introduce the current of the external power supply into the interior of the light-emitting device 12, so that the corresponding cold light device 121 and warm light device 122 can obtain sufficient electrical energy to generate a light-emitting phenomenon.

[0060] In some examples, the cold light anode 31, the cold light cathode 32, the warm light anode 34, and the warm light cathode 35 are arranged one by one at the four top corner positions of the substrate 20.

[0061] Such a setting can realize the reasonable arrangement of the cold light anode 31, the cold light cathode 32, the warm light anode 34, and the warm light cathode 35 on the second surface 22 of the substrate 20, which not only realizes the optimal design of the circuit on the substrate 20, but also ensures that the cold light device 121 and the warm light device 122 can obtain stable current supply, so that the current can accurately flow into each light-emitting device 12 according to the designed path, and ensures that the warm light device 122 and the cold light device 121 can normally emit light, avoiding problems such as flickering or unstable brightness, and ensuring the overall stability of the light-emitting of the LED light source module 100.

[0062] For the LED light source piece and the LED light source module of the present application, the LED light source piece includes a light source board and a plurality of light-emitting devices arranged in a matrix on the light source board, and the light-emitting devices include cold light devices and warm light devices. The number of cold light devices and the number of warm light devices in each row of light-emitting devices are the same, and the number of cold light devices and the number of warm light devices in each column of light-emitting devices are the same, which can realize the reasonable ratio of the number of cold light devices and warm light devices in each row and each column to generate light of intermediate color temperature, thereby realizing the harmony and uniformity of color; and the plurality of cold light devices and the plurality of warm light devices are arranged in central symmetry about the center of the main light-emitting unit, so that the light emitted by the cold light devices and the light emitted by the warm light devices can be uniformly superimposed and interwoven on the propagation path when propagating in space, thereby effectively promoting the mixing effect, and forming uniform mixed light on the receiving surface, greatly improving the uniformity of the light.

[0063] While the present application has been described with reference to several exemplary embodiments, it is understood that the words that have been used are words of description and illustration, rather than words of limitation. As mentioned above, the present application is capable of taking many forms of implementation and being practiced in various ways, and the above description is not intended to limit the application in any way, except as required by the appended claims and their equivalents.

Claims

1. An LED light source piece, characterized by, The light source panel and a plurality of light emitting devices arranged on the light source panel and used for emitting light, a plurality of the light emitting devices are arranged in a matrix on the light source panel, and all the light emitting devices on the light source panel collectively constitute a main light emitting unit; The light emitting devices include light color different cold light devices and warm light devices, and the cold light devices and the warm light devices are provided in plurality; the number of the cold light devices and the number of the warm light devices in each row of the light emitting devices are the same, the number of the cold light devices and the number of the warm light devices in each column of the light emitting devices are the same, and a plurality of the cold light devices and a plurality of the warm light devices are arranged in central symmetry about the center of the main light emitting unit; A plurality of the cold light devices and a plurality of the warm light devices located in the edge row are arranged in staggered arrangement, and a plurality of the cold light devices and a plurality of the warm light devices located in the edge column are arranged in staggered arrangement.

2. The LED light source piece of claim 1, wherein, The light source panel is circular, the light source panel is formed with a central axis, and the center of the light source panel is arranged in concentric with the center of the main light emitting unit; The central axis passes through the center of the light source panel, and the area of the light source panel for arranging the light emitting devices corresponds to the two sides of the central axis to form a first light emitting area and a second light emitting area, respectively; all the light emitting devices in the main light emitting unit except the light emitting devices located in the edge column and the edge row constitute a middle light emitting unit; A plurality of the light emitting devices of the middle light emitting unit are arranged in a matrix, and the light colors of the light emitting devices in the first light emitting area and the second light emitting area on both sides of the central axis in the same row of the middle light emitting unit are different.

3. The LED light source piece of claim 2, wherein, The light colors of a plurality of light emitting devices in the first light emitting area in each row of the middle light emitting unit are the same, and the light colors of a plurality of light emitting devices in the second light emitting area in each row of the middle light emitting unit are the same.

4. The LED light source piece of claim 2, wherein, A plurality of the cold light devices and a plurality of the warm light devices in each column of the light emitting devices in the middle light emitting unit are arranged in staggered arrangement.

5. The LED light source piece of claim 2, wherein, The number of the light emitting devices arranged in the first light emitting area is consistent with the number of the light emitting devices arranged in the second light emitting area.

6. The LED light source piece of claim 1, wherein, The light emitting devices of the same light color arranged on the diagonal of the main light emitting unit are arranged in central symmetry about the center of the main light emitting unit.

7. The LED light source piece of claim 1, wherein, The light source panel is circular, and the circular outer contour of the light source panel constitutes an inscribed circle of the main light emitting unit.

8. An LED light source module, characterized by The LED light source piece and the electrode are respectively arranged on the two side surfaces of the substrate, and the electrode is electrically connected with the light emitting devices.

9. The LED light source module of claim 8, wherein, The electrode includes a cold light anode and a cold light cathode electrically connected with all the cold light devices, and a warm light anode and a warm light cathode electrically connected with all the warm light devices.

10. The LED light source module of claim 9, wherein, The outer contour of the substrate is rectangular, and the cold light anode, the cold light cathode, the warm light anode and the warm light cathode are arranged one by one at the four top corner positions of the substrate.

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