Light source module and lamp

Abstract

The embodiment of the utility model provides a light source module and a lamp. The light source module comprises a lens, a first light-emitting chip and a second light-emitting chip. The lens is provided with a light inlet face and a light outlet face. Light emitted by the first light-emitting chip and light emitted by the second light-emitting chip can enter the lens through the light-in face and can be emitted out of the light-out face, and the first light-emitting chip and the second light-emitting chip can emit light independently. The maximum beam angle formed by the light emitted by the first light-emitting chip passing through the light-emitting surface is different from the maximum beam angle formed by the light emitted by the second light-emitting chip passing through the light-emitting surface. In this way, the brightness and the beam angle output by the light source module can be adjusted according to actual needs, and more precise light output adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a light source module and a lamp. Background Art

[0002] Lamps can use lenses to achieve different angles, thereby achieving lighting effects with different irradiation ranges. Now many scenes require a lamp to switch different beam angles to meet different lighting needs. However, the related technology is to achieve beam angle switching by using multiple light-emitting units corresponding to multiple lens groups. This is actually switching back and forth between multiple optical systems, which is costly and the size of the lamp is large. Utility Model Content

[0003] The embodiments of the present utility model provide a light source module and a lamp to improve at least one of the above technical problems.

[0004] The embodiments of the present utility model achieve the above-mentioned purpose through the following technical solutions.

[0005] An embodiment of the utility model provides a light source module, which includes a lens, a first light-emitting chip and a second light-emitting chip, wherein the lens has a light incident surface and a light emitting surface; the light emitted by the first light-emitting chip and the light emitted by the second light-emitting chip can enter the lens through the light incident surface and can be emitted from the light emitting surface, the first light-emitting chip and the second light-emitting chip can emit light independently of each other, and the maximum beam angle formed by the light emitted by the first light-emitting chip through the light emitting surface is different from the maximum beam angle formed by the light emitted by the second light-emitting chip through the light emitting surface.

[0006] In some embodiments, there are multiple first light-emitting chips, and the multiple first light-emitting chips are arranged in sequence to form a first light-emitting chip group, and the first light-emitting chip group passes through the optical axis of the light source module.

[0007] In some embodiments, there are multiple second light-emitting chips, which are arranged in sequence to form a second light-emitting chip group; the second light-emitting chip group is located on one side of the first light-emitting chip group, or the second light-emitting chip groups are arranged on both opposite sides of the first light-emitting chip group.

[0008] In some embodiments, multiple first light-emitting chips in the first light-emitting chip group are arranged along a first direction, multiple second light-emitting chips in the second light-emitting chip group are arranged along the first direction, the first light-emitting chip group and the second light-emitting chip group are arranged along a second direction, and the second direction is perpendicular to the first direction; and / or, the multiple first light-emitting chips in the first light-emitting chip group can emit light independently of each other; and / or, the multiple second light-emitting chips in the second light-emitting chip group can emit light independently of each other.

[0009] In some embodiments, the light source module further includes a substrate, and the first light-emitting chip and the second light-emitting chip are both disposed on the same side of the substrate and opposite to the light incident surface.

[0010] In some embodiments, the light source module further includes a diffuser, which is disposed between the light incident surface and the first light emitting chip or the second light emitting chip, and is located in the outgoing light path of the first light emitting chip and the outgoing light path of the second light emitting chip.

[0011] In some embodiments, the light source module further includes a bracket, which is fixedly connected to the substrate and supports the diffusion sheet.

[0012] In some embodiments, the light incident surface includes a first light incident surface and a second light incident surface, the second light incident surface surrounds the first light incident surface, the optical axis of the light source module passes through the first light incident surface, the first light incident surface is an outer convex surface, and the second light incident surface is an inner concave surface or an inclined surface; and / or, the light emitting surface includes a first light emitting surface and a second light emitting surface, the second light emitting surface surrounds the first light emitting surface, the optical axis of the light source module passes through the first light emitting surface, the first light emitting surface is an outer convex surface, and the second light emitting surface is an inner concave surface or an inclined surface.

[0013] In some embodiments, the maximum beam angle formed by the light emitted by the first light-emitting chip through the light-emitting surface is less than or equal to 30 degrees; and / or the maximum beam angle formed by the light emitted by the second light-emitting chip through the light-emitting surface is less than or equal to 70 degrees.

[0014] An embodiment of the utility model provides a lamp, which comprises a housing and a light source module according to any one of the above embodiments, wherein the light source module is arranged in the housing.

[0015] In the light source module and lamp provided by the embodiment of the utility model, the light emitted by the first light-emitting chip of the light source module and the light emitted by the second light-emitting chip can enter the lens through the light incident surface of the lens and can be emitted from the light exit surface of the lens, the first light-emitting chip and the second light-emitting chip can emit light independently of each other, and the maximum beam angle formed by the light emitted by the first light-emitting chip through the light exit surface of the lens is different from the maximum beam angle formed by the light emitted by the second light-emitting chip through the light exit surface of the lens. In this way, the independent controllability of the first light-emitting chip and the second light-emitting chip helps to adjust the brightness and beam angle output by the light source module according to actual needs, and realizes more precise light output adjustment, so that the light source module can be convenient for users to adjust the concentration or diffusion of light through remote control to adjust the lighting effect without physically replacing or realigning the lens, so as to meet the lighting requirements in a variety of different scenarios, and also help to improve energy efficiency and reduce unnecessary energy consumption. In addition, since the light source module can generate light beams at different angles through a single lens, it helps to streamline the structure of the light source module. Compared with the related technology that requires multiple lenses, it helps to reduce the volume, complexity and cost of the light source module. It may also simplify subsequent maintenance work and reduce potential troubleshooting and replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A structural schematic diagram of a light source module provided in an embodiment of the utility model is shown.

[0018] Figure 2 Shows Figure 1 A schematic cross-sectional view of the light source module along line II-II.

[0019] Figure 3 Shows Figure 1 Schematic diagram of the light path of the light emitted by the first light-emitting chip of the light source module.

[0020] Figure 4 Shows Figure 1 Schematic diagram of the light path of the light emitted by the second light-emitting chip of the light source module.

[0021] Figure 5 Shows Figure 1 Schematic diagram of the light path of the light emitted by the first light-emitting chip and the second light-emitting chip of the light source module.

[0022] Figure 6 Shows Figure 1 Schematic diagram of the light distribution curve of the light source module.

[0023] Figure 7 Shows Figure 1 Another schematic diagram of light distribution curve of the light source module.

[0024] Figure 8 Shows Figure 1 Another schematic diagram of light distribution curve of the light source module. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1 to Figure 2 The embodiment of the utility model provides a light source module 100, which includes a lens 10, a first light emitting chip 20 and a second light emitting chip 30. The lens 10 has a light incident surface 11 and a light emitting surface 12. The light emitted by the first light emitting chip 20 and the light emitted by the second light emitting chip 30 can enter the lens 10 through the light incident surface 11 and can be emitted from the light emitting surface 12. The first light emitting chip 20 and the second light emitting chip 30 can emit light independently of each other, and the maximum beam angle formed by the light emitted by the first light emitting chip 20 through the light emitting surface 12 is different from the maximum beam angle formed by the light emitted by the second light emitting chip 30 through the light emitting surface 12.

[0028] In this way, the first light emitting chip 20 and the second light emitting chip 30 can be independently controlled, for example Figure 3 As shown, the light emitted by the first light emitting chip 20 is emitted through the light emitting surface 12. Figure 4 As shown, the light emitted by the second light emitting chip 30 is emitted through the light emitting surface 12. Figure 5 As shown, the light emitted by the first light-emitting chip 20 and the second light-emitting chip 30 is emitted through the light-emitting surface 12, which helps to adjust the brightness and beam angle of the light source module 100 output according to actual needs, and realize more precise light output adjustment. The light source module 100 can be convenient for users to adjust the concentration or diffusion of light through remote control to adjust the lighting effect without the need to physically replace or realign the lens 10, thereby meeting the lighting requirements in a variety of different scenarios, and helping to improve energy efficiency and reduce unnecessary energy consumption.

[0029] In addition, since the light source module 100 can generate light beams of different angles through a single lens 10, it helps to simplify the structure of the light source module 100. Compared with the solution of multiple lenses required in the related technology, it helps to reduce the volume, complexity and cost of the light source module 100. It may also simplify subsequent maintenance work and reduce potential troubleshooting and replacement costs.

[0030] In some embodiments, there may be a plurality of first light emitting chips 20 , and the plurality of first light emitting chips 20 are sequentially arranged to form a first light emitting chip group, and the first light emitting chip group passes through the optical axis of the light source module 100 .

[0031] In this way, the combined effect of the multiple first light-emitting chips 20 helps to enhance the total light output of the light source module 100. The light emitted by the first light-emitting chip group can be more directly focused on the central area of ​​the lens 10, which helps to reduce the loss during the light propagation process, improves the transmission efficiency of light energy, and helps to improve the overall light effect and lighting intensity. In addition, the arrangement and layout of the multiple first light-emitting chips 20 helps to form a more uniform light input on the light incident surface 11 of the lens 10, so that the light beam formed after the light passes through the lens 10 is more uniform and consistent, improving the uniformity of light in the illuminated area.

[0032] In addition, multiple first light-emitting chips 20 can serve as a redundant structure, so that even if a single first light-emitting chip 20 fails, other first light-emitting chips 20 can still maintain the basic functions of the first light-emitting chip group, which helps to improve the stability and reliability of the entire lighting system.

[0033] In the present invention, the term “plurality” means greater than or equal to two. For example, the number of the first light-emitting chips 20 may be two, three, four, five or other numbers.

[0034] In some embodiments, the multiple first light-emitting chips 20 in the first light-emitting chip group can emit light independently of each other, which helps to provide a basis for the subsequent adjustment of the beam angle and helps to achieve a more detailed light distribution control strategy. In other embodiments, the multiple first light-emitting chips 20 in the first light-emitting chip group can also be controlled to emit light synchronously.

[0035] In some embodiments, when there are multiple first light emitting chips 20 , sizes, parameters, etc. of all the first light emitting chips 20 may be the same; or sizes, parameters, etc. of a portion of the first light emitting chips 20 may be the same.

[0036] In some embodiments, the number of second light-emitting chips 30 can be multiple, and multiple second light-emitting chips 30 are arranged in sequence to form a second light-emitting chip group. In this way, the multiple second light-emitting chips 30 work together to help enhance the total light output of the light source module 100, and help to form a more uniform light input on the light incident surface 11 of the lens 10, so that the light beam formed after the light passes through the lens 10 is more uniform and consistent, thereby improving the uniformity of light in the illuminated area.

[0037] In addition, multiple second light-emitting chips 30 can serve as a redundant structure, so that even if a single second light-emitting chip 30 fails, other second light-emitting chips 30 can still maintain the basic functions of the second light-emitting chip group, which helps to improve the stability and reliability of the entire lighting system.

[0038] In some embodiments, the second light-emitting chip group is located on one side of the first light-emitting chip group, or the second light-emitting chip group can be arranged on both opposite sides of the first light-emitting chip group. In this way, the light emitted by the second light-emitting chip group helps to generate wider scattered light in the side area of ​​the lens 10, so as to cooperate with the light emitted by the first light-emitting chip group passing through the central area of ​​the lens 10, which helps to improve the overall light effect and lighting intensity, and also helps to integrate more light-emitting chips in a limited space, so as to maintain the miniaturized design of the light source module 100.

[0039] In some embodiments, the number of the second light emitting chips 30 may be two, three, four, five or other numbers.

[0040] In some embodiments, the plurality of second light-emitting chips 30 in the second light-emitting chip group can emit light independently of each other, which helps to provide a basis for subsequent adjustment of the beam angle and helps to achieve a more detailed light distribution control strategy. In other embodiments, the plurality of second light-emitting chips 30 in the second light-emitting chip group can also be controlled to emit light synchronously.

[0041] In some embodiments, when there are multiple second light emitting chips 30 , sizes, parameters, etc. of all the second light emitting chips 30 may be the same; or sizes, parameters, etc. of a portion of the second light emitting chips 30 may be the same.

[0042] In some embodiments, the plurality of first light-emitting chips 20 in the first light-emitting chip group may be arranged along the first direction X, the plurality of second light-emitting chips 30 in the second light-emitting chip group may be arranged along the first direction X, the first light-emitting chip group and the second light-emitting chip group are arranged along the second direction Y, and the second direction Y may be perpendicular to the first direction X.

[0043] In this way, the first light-emitting chip 20 and the second light-emitting chip 30 can form a continuous and uniform light band in two mutually perpendicular directions, which not only helps to provide a more uniform light distribution effect, but also can flexibly control the distribution of light in space by adjusting the brightness or switching state of the light-emitting chips in different directions, thereby realizing different lighting modes, such as concentrated lighting, floodlighting or directional lighting, thereby increasing the flexibility and diversity of lighting applications.

[0044] In some embodiments, the maximum beam angle formed by the light emitted by the first light emitting chip 20 through the light emitting surface 12 may be less than or equal to 30 degrees.

[0045] This helps to concentrate the amount of light, reduce unnecessary scattering, and improve light utilization efficiency, so that the light can be more concentrated on the target area, making it easier for the light source module 100 to be used in situations that require precise lighting or long-distance lighting, such as building exterior lighting, stage spotlights, tracking lighting, etc.

[0046] In some embodiments, the maximum beam angle formed by the light emitted by the second light emitting chip 30 through the light emitting surface 12 may be less than or equal to 70 degrees.

[0047] This helps to distribute light more evenly in the illuminated area, reduces brightness differences between the center and the edge, provides a wider illumination coverage area, and facilitates the application of the light source module 100 in scenarios requiring light uniformity, such as office environments, commercial display lighting, etc.

[0048] In some embodiments, the luminous powers of the first light emitting chip 20 and the second light emitting chip 30 can be output proportionally to achieve the effect that the light beam angle changes from 30 degrees to 70 degrees through the light emitting surface 12 of the lens 10, for example Figure 6 As shown, the beam angle formed by the light of the first light emitting chip 20 and the second light emitting chip 30 through the light emitting surface 12 of the lens 10 is approximately 30 degrees. Figure 7 As shown, the beam angle formed by the light of the first light-emitting chip 20 and the second light-emitting chip 30 through the light-emitting surface 12 of the lens 10 is approximately 70 degrees, and the beam angle formed by the light of the first light-emitting chip 20 and the second light-emitting chip 30 through the light-emitting surface 12 of the lens 10 is approximately 50 degrees.

[0049] In some embodiments, the first light-emitting chip 20 can be an LED light-emitting chip. The second light-emitting chip 30 can be an LED light-emitting chip. In this way, the LED light-emitting chip is small in size and light in weight, and a more compact and lightweight product can be designed, which is easy to install in various equipment or small spaces, and is also convenient for more personalized customization in different lighting design schemes. The LED light-emitting chip starts quickly, does not need to be preheated, and has almost no flicker during operation, which is helpful for application scenarios that require frequent switching or have high requirements for light stability, and can effectively reduce visual fatigue. In addition, the LED light-emitting chip can convert electrical energy into light energy more efficiently, greatly reducing energy consumption, and the LED light-emitting chip has good weather resistance, can work stably in a wide temperature range, is not affected by low or high temperatures, and is suitable for various indoor and outdoor lighting environments, including applications under extreme climatic conditions.

[0050] See also Figure 2 In some embodiments, the light source module 100 may further include a substrate 40, and the first light emitting chip 20 and the second light emitting chip 30 are both disposed on the same side of the substrate 40 and are both opposite to the light incident surface 11. This helps to simplify the structure of the entire light source module 100, reduce assembly complexity, and facilitate production and maintenance. It is also helpful to reduce the volume of the light source module 100 and improve space utilization.

[0051] In some embodiments, the substrate 40 may be a circuit board. For example, the substrate 40 may be a rigid circuit board, a flexible circuit board, or other types.

[0052] In some embodiments, the light incident surface 11 of the lens 10 may include a first light incident surface 111 and a second light incident surface 112, the second light incident surface 112 surrounds the first light incident surface 111, the optical axis of the light source module 100 passes through the first light incident surface 111, the first light incident surface 111 is an outer convex surface, and the second light incident surface 112 is an inner concave surface or an inclined surface.

[0053] In this way, the design of the first light incident surface 111 helps to collect the light from the light emitting chip to the maximum extent, and helps to guide the light deviating from the central axis to the center of the lens 10 through refraction, thereby improving the utilization efficiency of the light and helping to enhance the focusing effect of the light beam. The second light incident surface 112 helps to guide the light into the lens 10 from the side, and to a certain extent can make the light diverge and guide it to the center and edge of the lens 10, which helps to optimize the collection and control of the light, so that the edge of the light beam emitted by the subsequent light source module 100 is smoother.

[0054] In some embodiments, the light emitting surface 12 of the lens 10 may include a first light emitting surface 121 and a second light emitting surface 122, the second light emitting surface 122 surrounds the first light emitting surface 121, the optical axis of the light source module 100 passes through the first light emitting surface 121, the first light emitting surface 121 is an outer convex surface, and the second light emitting surface 122 is an inner concave surface or an inclined surface.

[0055] In this way, the first light-emitting surface 121 helps the lens 10 to converge the light passing through, making the light more concentrated, effectively directing the light in the desired direction, and improving the directivity of the lighting. The second light-emitting surface 122 plays an auxiliary diffusion role when the light is emitted, helping the light to be more evenly distributed within a certain range, reducing the difference in the intensity of the central light beam and the edge light, and improving the uniformity of the overall lighting.

[0056] In some embodiments, the lens 10 may be a total internal reflection (TIR) ​​lens 10, a convex lens 10, a combination of lenses 10, or other structures.

[0057] In some embodiments, the light source module 100 may further include a diffuser 50, which is located in the outgoing light path of the first light emitting chip 20 and the outgoing light path of the second light emitting chip 30. In this way, the diffuser 50 helps to disperse the light emitted by the first light emitting chip 20 and the second light emitting chip 30, helps to reduce or eliminate glare and hot spots, makes the light distribution more uniform, helps to create a soft and comfortable lighting environment, and is particularly suitable for occasions that require uniform lighting, such as reading areas or workbenches.

[0058] In some embodiments, the diffuser 50 may be disposed between the light incident surface 11 of the lens 10 and the first light emitting chip 20 , or the diffuser 50 may be disposed between the light incident surface 11 of the lens 10 and the second light emitting chip 30 .

[0059] In this way, the diffuser 50 utilizes the diffusion effect of light to intervene in the light path earlier, more accurately control the scattering angle and intensity of the light beam, and achieve a more detailed lighting effect. Even if the light-emitting angles of the first light-emitting chip 20 and the second light-emitting chip 30 themselves are limited, a wider lighting range can be achieved to meet the lighting needs of large spaces or areas that require a wide illumination, thereby improving lighting efficiency and flexibility.

[0060] In some embodiments, the light source module 100 may further include a bracket 60, which is fixedly connected to the substrate 40 and carries the diffuser 50. In this way, the bracket 60 helps to provide a stable support structure for the diffuser 50, helps to better maintain the stability of the position of the diffuser 50 during the installation, transportation or use of the light source module 100, and helps to reduce the risk of displacement or damage caused by vibration or external force.

[0061] See also Figure 1 An embodiment of the utility model provides a lamp 200, which includes a shell 201 and a light source module 100 of any of the above embodiments. The light source module 100 is arranged in the shell 201, and the shell 201 can provide support for the light source module 100, so that the position of the light source module 100 is not easy to tilt or fall, which helps to ensure safety in use.

[0062] In the present invention, unless otherwise clearly specified or limited, the terms "assembly" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements, it can be only surface contact, or it can be connected through the surface contact of an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the utility model and the features of different embodiments or examples without contradiction.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A light source module, characterized in that: include: A lens having a light incident surface and a light emitting surface; A first light-emitting chip and a second light-emitting chip, the light emitted by the first light-emitting chip and the light emitted by the second light-emitting chip can enter the lens through the light incident surface and can be emitted from the light exiting surface, the first light-emitting chip and the second light-emitting chip can emit light independently of each other, and the maximum beam angle formed by the light emitted by the first light-emitting chip through the light exiting surface is different from the maximum beam angle formed by the light emitted by the second light-emitting chip through the light exiting surface.

2. The light source module according to claim 1, characterized in that: There are multiple first light-emitting chips, and the multiple first light-emitting chips are arranged in sequence to form a first light-emitting chip group. The first light-emitting chip group passes through the optical axis of the light source module.

3. The light source module according to claim 2, characterized in that: There are multiple second light-emitting chips, and the multiple second light-emitting chips are arranged in sequence to form a second light-emitting chip group; The second light-emitting chip group is located at one side of the first light-emitting chip group, or the second light-emitting chip group is arranged on two opposite sides of the first light-emitting chip group.

4. The light source module according to claim 3, characterized in that: The plurality of first light-emitting chips in the first light-emitting chip group are arranged along a first direction, the plurality of second light-emitting chips in the second light-emitting chip group are arranged along the first direction, the first light-emitting chip group and the second light-emitting chip group are arranged along a second direction, and the second direction is perpendicular to the first direction; and / or, the plurality of first light-emitting chips in the first light-emitting chip group can emit light independently of each other; And / or, the plurality of second light-emitting chips in the second light-emitting chip group can emit light independently of each other.

5. The light source module according to claim 1, characterized in that: The light source module further includes a substrate, and the first light emitting chip and the second light emitting chip are both arranged on the same side of the substrate and opposite to the light incident surface.

6. The light source module according to claim 5, characterized in that: The light source module further includes a diffuser, which is disposed between the light incident surface and the first light emitting chip or the second light emitting chip, and is located in an outgoing light path of the first light emitting chip and an outgoing light path of the second light emitting chip.

7. The light source module according to claim 6, characterized in that: The light source module further comprises a bracket, which is fixedly connected to the substrate and carries the diffusion sheet.

8. The light source module according to claim 1, characterized in that: The light incident surface includes a first light incident surface and a second light incident surface, the second light incident surface surrounds the first light incident surface, the optical axis of the light source module passes through the first light incident surface, the first light incident surface is an outer convex surface, and the second light incident surface is an inner concave surface or an inclined surface; And / or, the light emitting surface includes a first light emitting surface and a second light emitting surface, the second light emitting surface surrounds the first light emitting surface, the optical axis of the light source module passes through the first light emitting surface, the first light emitting surface is an outer convex surface, and the second light emitting surface is an inner concave surface or an inclined surface.

9. The light source module according to claim 1, characterized in that: The maximum beam angle formed by the light emitted by the first light-emitting chip through the light-emitting surface is less than or equal to 30 degrees; And / or, the maximum beam angle formed by the light emitted by the second light-emitting chip through the light-emitting surface is less than or equal to 70 degrees.

10. A lamp, characterized in that: include: case; as well as According to any one of claims 1 to 9, the light source module is arranged in the housing.

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