Lamp

Abstract

The embodiment of the utility model provides a lamp, a first light beam expansion unit, a second light beam expansion unit and a third light beam expansion unit of a light beam expansion device of the lamp are all provided with concave cylindrical surfaces, the first light beam expansion unit is located on a light-emitting light path of a first light-emitting chip, and the second light beam expansion unit is located on a light-emitting light path of a second light-emitting chip. The third light beam expanding unit is located on a light-emitting light path of the third light-emitting chip, the light combining assembly is used for combining the received emergent light and then emitting the light to the light-emitting lens, the divergence angle of the light beams is improved, and the uniformity of the emergent light of the lamp is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lamps, in particular to a lamp. BACKGROUND

[0002] At present, in lamps such as high-power photographic lamps and stage lamps, laser beams are usually used to obtain sufficient brightness and irradiation distance. However, lenses are usually arranged in the propagation path of the laser beams in the lamp, and the uniformity of the light spot after the laser beams pass through the lenses is poor. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a lamp to solve the above technical problems.

[0004] Embodiments of the present application achieve the above-mentioned purposes through the following technical solutions.

[0005] Embodiments of the present application provide a lamp, which comprises a first laser, a second laser, a third laser, a beam expansion device, a light combination assembly and a light exit lens. The first laser comprises a plurality of first light emitting chips arranged in an array and configured to emit first color light. The second laser comprises a plurality of second light emitting chips arranged in an array and configured to emit second color light. The third laser comprises a plurality of third light emitting chips arranged in an array and configured to emit third color light. The beam expansion device comprises a plurality of first beam expansion units, a plurality of second beam expansion units and a plurality of third beam expansion units, each of which has a concave cylindrical surface. The first beam expansion units are located in the light exit path of the corresponding first light emitting chips, the second beam expansion units are located in the light exit path of the corresponding second light emitting chips, and the third beam expansion units are located in the light exit path of the corresponding third light emitting chips. The light combination assembly is configured to combine the exit light of the first beam expansion units, the exit light of the second beam expansion units and the exit light of the third beam expansion units and then exit to the light exit lens.

[0006] In some embodiments, one of the first color light, the second color light and the third color light is red light, another is green light, and the other is blue light.

[0007] In some embodiments, the plurality of first beam expansion units are arranged in an array, the plurality of second beam expansion units are arranged in an array, and the plurality of third beam expansion units are arranged in an array.

[0008] In some embodiments, the cylindrical surface of the first beam expansion unit is spherical or aspherical, and the first beam expansion unit is configured to diffuse the received first color light and emit the diffused first color light to the light combination assembly; the cylindrical surface of the second beam expansion unit is spherical or aspherical, and the second beam expansion unit is configured to diffuse the received second color light and emit the diffused second color light to the light combination assembly; and the cylindrical surface of the third beam expansion unit is spherical or aspherical, and the third beam expansion unit is configured to diffuse the received third color light and emit the diffused third color light to the light combination assembly.

[0009] In some embodiments, the lamp further comprises a light homogenizing device located in the light emitting path of the light combination assembly and configured to homogenize the combined light emitted by the light combination assembly.

[0010] In some embodiments, the light homogenizing device comprises an ommatidium lens or a diffusion sheet.

[0011] In some embodiments, the light combination assembly comprises a first lens and a second lens, the second lens is located in the light emitting path of the light emitting surface of the plurality of second beam expansion units and the light path of the third light beam, and the second lens is configured to reflect the second color light and transmit the third color light; the first lens is located in the light emitting path of the second lens and the light emitting path of the light emitting surface of the plurality of first beam expansion units, and the first lens is configured to transmit the first color light and reflect the second color light and the third color light, so that the first color light, the second color light and the third color light are combined and then irradiated to the light emitting lens.

[0012] In some embodiments, the second lens is located in the light emitting path of the light emitting surface of the plurality of third beam expansion units, and the third beam expansion unit and the second beam expansion unit are located on opposite sides of the second lens.

[0013] In some embodiments, the light combination assembly further comprises a third lens, the second lens is located in the light emitting path of the third lens, the third lens is located in the light emitting path of the light emitting surface of the plurality of third beam expansion units, and the third lens is configured to reflect the third color light to the second lens.

[0014] In some embodiments, the lamp further comprises a spot compression lens located in the light emitting path of the light combination assembly, and the spot compression lens is configured to reduce the size of the long axis of the spot of the combined light emitted by the light combination assembly.

[0015] In some embodiments, the spot compression lens comprises a positive cylindrical lens located in the light emitting path of the light combination assembly, or the spot compression lens comprises a positive cylindrical lens and a negative cylindrical lens located in the light emitting path of the light combination assembly.

[0016] In the lamp provided by any of the above embodiments of the present application, the first beam expansion unit, the second beam expansion unit, and the third beam expansion unit of the beam expansion device all have a concave portion; the first beam expansion unit is located in the light-emitting optical path of the corresponding first light-emitting chip, each second beam expansion unit is located in the light-emitting optical path of the corresponding second light-emitting chip, and each third beam expansion unit is located in the light-emitting optical path of the corresponding third light-emitting chip, and the light-combining component is used to combine the outgoing light of the first beam expansion unit, the outgoing light of the second beam expansion unit, and the outgoing light of the third beam expansion unit and emit them to the light-emitting lens. In this way, the concave portion helps to improve the divergence angle of the light beam, helps to diffuse the color light, and thus improves the uniformity of the outgoing light of the lamp, so that the light spot of the outgoing light of the lamp is fuller, and the brightness, purity, color consistency, etc. of the light spot are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 The schematic diagram illustrates the structure of the lamps provided in some embodiments of the present application.

[0019] Figure 2 Example Figure 1 A schematic structural diagram of a first beam expansion unit of a lamp provided in an embodiment.

[0020] Figure 3 Schematic diagrams illustrating the structures of lamps provided in other embodiments of the present application are shown.

[0021] Figure 4 Schematic diagrams illustrating the structures of lamps provided in some further embodiments of the present application are shown. DETAILED DESCRIPTION

[0022] 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 clearly and completely described below in conjunction with the 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 the embodiments. Based on the embodiments in 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.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0024] SeeFigure 1 and Figure 2 An embodiment of the present application provides a lamp 100, which may be a photographic lamp, a stage lamp, or other lamps.

[0025] In some embodiments, the lamp 100 includes a first laser 10, a second laser 20, a third laser 30, a beam expansion device 40, a light combining component 50 and a light output lens 60. The output light of the first laser 10, the output light of the second laser 20 and the output light of the third laser 30 are all emitted to the outside of the lamp 100 through the beam expansion device 40, the light combining component 50 and the light output lens 60 in sequence.

[0026] The first laser 10 includes a plurality of first light-emitting chips 110 arranged in an array and configured to emit light of a first color. The second laser 20 includes a plurality of second light-emitting chips 210 arranged in an array and configured to emit light of a second color. The third laser 30 includes a plurality of third light-emitting chips 310 arranged in an array and configured to emit light of a third color.

[0027] The beam expansion device 40 includes a plurality of first beam expansion units 410 , a plurality of second beam expansion units 420 , and a plurality of third beam expansion units 430 . The first beam expansion units 410 , the second beam expansion units 420 , and the third beam expansion units 430 all have concave cylindrical surfaces.

[0028] In some embodiments, the cylindrical surface of first beam expansion unit 410 may be the light incident surface of first beam expansion unit 410 or the light exit surface 411 of first beam expansion unit 410. The cylindrical surface of second beam expansion unit 420 may be the light incident surface of second beam expansion unit 420 or the light exit surface 421 of second beam expansion unit 420. The cylindrical surface of third beam expansion unit 430 may be the light incident surface of third beam expansion unit 430 or the light exit surface 431 of third beam expansion unit 430.

[0029] The first beam expansion unit 410 is located in the light output path of the corresponding first light-emitting chip 110, the second beam expansion unit 420 is located in the light output path of the corresponding second light-emitting chip 210, and the third beam expansion unit 430 is located in the light output path of the corresponding third light-emitting chip 310. The light combining assembly 50 is used to combine the output light from the first beam expansion unit 410, the output light from the second beam expansion unit 420, and the output light from the third beam expansion unit 430, and then output the combined light to the output lens 60.

[0030] Since the first beam expansion unit 410, the second beam expansion unit 420 and the third beam expansion unit 430 all have concave cylindrical surfaces, the concave cylindrical surfaces help to improve the divergence angle of the light beam in a certain direction, and thus help to improve the uniformity of the light spot of the outgoing light. For example, the first beam expansion unit 410 can diffuse the short axis of the first color light emitted by the first light emitting chip 110, the second beam expansion unit 420 can diffuse the short axis of the second color light emitted by the second light emitting chip 210, and the third beam expansion unit 430 can diffuse the short axis of the third color light emitted by the third light emitting chip 310, thereby helping to improve the divergence angle of the first color light in a certain direction, thereby improving the uniformity of the entire outgoing light spot, improving the divergence angle of the second color light in a certain direction, thereby improving the uniformity of the entire outgoing light spot, improving the divergence angle of the third color light in a certain direction, thereby improving the uniformity of the entire outgoing light spot, and thus improving the uniformity of the outgoing light of the lamp 100. In this way, the light spot of the outgoing light of the lamp 100 is more full, and the brightness, purity, color consistency and other effects of the light spot are better.

[0031] In some embodiments, the concave cylindrical surface can be a cylindrical surface or other curved surface.

[0032] In some embodiments, the plurality of first beam expansion units 410 are arranged in an array, the plurality of second beam expansion units 420 are arranged in an array, and the plurality of third beam expansion units 430 are arranged in an array. In an embodiment, the plurality of first beam expansion units 410, the second beam expansion units 420 and the third beam expansion units 430 have the same cylindrical surface, and in an embodiment, the plurality of first beam expansion units 410, the second beam expansion units 420 and the third beam expansion units 430 have different cylindrical surfaces, which can be adjusted according to the differences between the light emitting chips. The array arrangement form of the first light emitting chip 110, the array arrangement form of the second light emitting chip 210 and the array arrangement form of the third light emitting chip 310 can be the same or different.

[0033] In some embodiments, the plurality of first light emitting chips 110 can be tiled on the circuit board of the first laser 10 and arranged in an array. The plurality of first light emitting chips 110 can be tiled in an array to form a layout form of multiple rows and multiple columns, for example, the plurality of first light emitting chips 110 can be tiled in an array to form a shape substantially in the form of a square, a rectangle, etc., and for example, the plurality of first light emitting chips 110 can be tiled in an array to form a shape substantially in the form of a circle.

[0034] In some embodiments, multiple second light-emitting chips 210 can be laid out on the circuit board of the second laser 20 and arranged in an array. The multiple second light-emitting chips 210 can be laid out in an array to form a layout of multiple rows and columns. For example, the multiple second light-emitting chips 210 can be laid out in an array to form a substantially square, rectangular, or other shape. For another example, the multiple second light-emitting chips 210 can be laid out in an array to form a substantially circular shape.

[0035] In some embodiments, multiple third light-emitting chips 310 can be arranged in an array on a circuit board of the third laser 30. The multiple third light-emitting chips 310 can be arranged in an array to form a layout of multiple rows and columns. For example, the multiple third light-emitting chips 310 can be arranged in an array to form a roughly square, rectangular, or other shape. For another example, the multiple third light-emitting chips 310 can be arranged in an array to form a roughly circular shape.

[0036] In some embodiments, the first light-emitting chip 110, the second light-emitting chip 210, and the third light-emitting chip 310 can all be laser chips. As is known to all, the emitted light of a laser includes long-axis and short-axis light. By providing a cylindrical lens, the divergence of the short-axis laser can be increased, thereby improving the uniformity of the laser emitted light.

[0037] In some embodiments, one of the first color light, the second color light, and the third color light is red light, another is green light, and another is blue light. For example, the first color light may be red light, the second color light may be green light, and the third color light may be blue light. For another example, the first color light may be red light, the second color light may be blue light, and the third color light may be green light. For another example, the first color light may be green light, the second color light may be red light, and the third color light may be blue light. For another example, the first color light may be green light, the second color light may be blue light, and the third color light may be red light. For example, the first color light may be blue light, the second color light may be green light, and the third color light may be red light. For example, the first color light may be blue light, the second color light may be red light, and the third color light may be green light.

[0038] In this way, light beams of different colors are combined after passing through their respective beam expansion units, which helps to improve the consistency of the spot distribution size of the final output light of the lamp 100.

[0039] In some embodiments, the cylindrical surface of the first beam expansion unit 410 is spherical or aspherical, and the first beam expansion unit 410 is configured to diffuse the received first color light and emit the diffused first color light to the light combination assembly 50. The cylindrical surface of the second beam expansion unit 420 is spherical or aspherical, and the second beam expansion unit 420 is configured to diffuse the received second color light and emit the diffused second color light to the light combination assembly 50. The cylindrical surface of the third beam expansion unit 430 is spherical or aspherical, and the third beam expansion unit 430 is configured to diffuse the received third color light and emit the diffused third color light to the light combination assembly 50. In this way, the spherical surface helps to simplify the design difficulty of the first beam expansion unit 410, facilitates the manufacturing of the first beam expansion unit 410, helps to simplify the design difficulty of the second beam expansion unit 420, facilitates the manufacturing of the second beam expansion unit 420, simplifies the design difficulty of the third beam expansion unit 430, and facilitates the manufacturing of the third beam expansion unit 430. The unique curved surface design of the aspherical surface helps the beam expansion unit to achieve precise focusing and control of light in a shorter optical path, which helps to reduce the volume and weight of the lamp 100, reduces the demand for installation space, increases the design flexibility, and more efficiently collects and guides light, reduces scattering and loss, thereby improving the energy efficiency of the entire lamp 100 and improving the brightness and imaging range of the lamp 100.

[0040] In some embodiments, the light combination assembly 50 can include a first lens 510 and a second lens 520. The second lens 520 is located in the light path of the light emitted by the light emitting surface 421 of the second beam expansion unit 420 and the light path of the third light beam, and is configured to reflect the second color light and transmit the third color light. The first lens 510 is located in the light path of the second lens 520 and the light path of the light emitted by the light emitting surface 411 of the first beam expansion unit 410, and is configured to transmit the first color light and reflect the second color light and the third color light, so that the first color light, the second color light and the third color light are combined and then irradiated to the light emitting lens 60. In this way, by combining the use of multiple lenses, it helps to ensure that the three color lights are more uniformly mixed when combined, reduces the brightness unevenness in the light spot, and improves the uniformity of the light spot.

[0041] In some embodiments, the second lens 520 can directly collect the third color light. For example Figure 3 As shown, the second lens 520 is located in the light path of the light emitted by the light emitting surface 431 of the third beam expansion unit 430, and the third beam expansion unit 430 and the second beam expansion unit 420 are located on opposite sides of the second lens 520. In this way, the light combination assembly 50 uses the second lens 520 to receive the emitted light of the second beam expansion unit 420 and the third beam expansion unit 430, which helps to reduce the number of parts and helps to reduce the volume of the lamp 100.

[0042] In some embodiments, the second lens 520 can collect the third color light through other lenses. For example Figure 1 As shown, the light combination assembly 50 can further include a third lens 530, the second lens 520 is located in the light exit light path of the third lens 530, the third lens 530 is located in the light exit light path of the light exit surface 431 of the plurality of third beam expansion units 430, and the third lens 530 is used to reflect the third color light to the second lens 520. In this way, the light combination assembly 50 respectively uses different lenses to receive different color lights, which helps to improve the flexibility of the layout of the first laser 10, the second laser 20 and the third laser 30, and the first laser 10, the second laser 20 and the third laser 30 can be arranged in the same plane, facilitating the assembly of the heat sink.

[0043] In some embodiments, the lamp 100 can further include a light homogenization device 70, the light homogenization device 70 is located in the light exit light path of the light combination assembly 50 and is used to homogenize the combined light emitted by the light combination assembly 50. In this way, the light homogenization device 70 helps to improve the uniformity of the light spot, further homogenizes the light emitted by the light combination assembly 50, makes the light intensity of the center and the edge of the light spot more balanced, reduces the brightness difference in the light spot, for example, reduces the problem of local over-brightness or over-darkness in the light spot, makes the brightness of the light spot more uniform, and also helps to make the distribution of light of different colors more uniform.

[0044] In some embodiments, the light homogenization device 70 can include a compound eye lens or a diffusion sheet. The compound eye lens can split and re-integrate the incident light beam through a plurality of micro-lens structures, each micro-lens can independently regulate a small part of light, thereby realizing fine homogenization of light, making the emitted light more uniform, and helping to improve the imaging quality. The diffusion sheet can scatter light through the microstructure inside the material, so that the light can uniformly diverge in multiple directions after being emitted, which can effectively expand the coverage range of light and reduce the central bright spot. In this way, the compound eye lens and the diffusion sheet can help to disperse and mix the emitted light of the light combination assembly 50, reduce dark areas, make the brightness distribution of the emitted light of the lamp 100 more uniform and consistent, and help to improve the overall softness and comfort.

[0045] In some embodiments, in the case where the light homogenization device 70 includes a compound eye lens, the light homogenization device 70 can select a single compound eye lens or a double compound eye lens.

[0046] In some embodiments, the lamp 100 can further include a condenser lens 80, the condenser lens 80 is located in the light exit light path of the light homogenization device 70 and is used to guide light to the light diaphragm 81 so that the light is emitted from the light exit lens 60. In this way, the condenser lens 80 can concentrate and guide the light that has been homogenized, so that the light is more concentratedly directed to the light exit lens 60, which helps to reduce the loss of light and ensure that more light is effectively utilized.

[0047] In some embodiments, the condenser lens 80 can be a plano-convex lens, for example, the light entrance surface of the condenser lens 80 can be convex, and the light exit surface of the condenser lens 80 can be flat.

[0048] Referring to Figure 4 In some embodiments, the lamp 100 can further include a spot compression lens 90 located in the light exit path of the light combination assembly 50, and the spot compression lens 90 is configured to reduce the size of the long axis direction of the light spot of the combined light emitted by the light combination assembly 50. In this way, the spot compression lens 90 can compress the size of the light spot in the long axis direction, so that the shape of the light spot of the combined light emitted by the light combination assembly 50 is closer to a circular shape or a desired shape, and it is also helpful to make the light intensity of the center and the edge of the light spot more balanced, the brightness of the light spot is higher, and it is helpful to reduce the loss of light, thereby improving the overall light efficiency of the light spot and improving the utilization rate of light.

[0049] In some embodiments, the spot compression lens 90 can include a positive cylindrical lens 910 and a negative cylindrical lens 920 located in the light exit path of the light combination assembly 50. In this way, the negative cylindrical lens 920 and the positive cylindrical lens 910 can cooperate with each other to make more precise adjustments to the combined light emitted by the light combination assembly 50, for example, the negative cylindrical lens 920 can be used to diverge the light, and the positive cylindrical lens 910 can be used to converge the light, and the two work together to help achieve precise control of the propagation path and focal point of the light, and also help optimize the refraction and convergence process of the light, reduce the loss of light in the transmission process, thereby helping to improve the light utilization efficiency of the entire lamp 100. Moreover, since the light is adjusted by directly utilizing the basic physical properties of the negative cylindrical lens 920 and the positive cylindrical lens 910, compared with a complex optical system design, it is more intuitive and easy to implement, which helps to simplify the design process and reduce the design cost.

[0050] In other embodiments, the spot compression lens 90 can also include a positive cylindrical lens 910 located in the light exit path of the light combination assembly 50, and at this time the spot compression lens 90 can also not be configured with a negative cylindrical lens 920.

[0051] In some embodiments, the positive cylindrical lens 910 can be a double convex lens, a plano-convex lens, or other types. For example, the light entrance surface of the positive cylindrical lens 910 can be convex, and the light exit surface of the positive cylindrical lens 910 can be flat.

[0052] In some embodiments, the negative cylindrical lens 920 can be a double concave lens, a plano-concave lens, or other types. For example, the light entrance surface and the light exit surface of the negative cylindrical lens 920 can both be concave.

[0053] In some embodiments, the positive cylindrical lens 910 can be made of glass or plastic. The negative cylindrical lens 920 can be made of glass or plastic.

[0054] In this application, unless otherwise clearly specified or limited, the terms "mounting", "connecting" and the like should be interpreted broadly. For example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements, or only surface contact, or surface contact connection through intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] In addition, the terms "first", "second" and the like are only used to distinguish descriptions, 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 connection with the embodiments or examples are included in at least one embodiment or example of the application. In this application, the illustrative description 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 appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this application and the features of different embodiments or examples without contradiction.

[0056] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions, and fall within the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A lamp, characterized in that: include: A first laser, comprising a plurality of first light-emitting chips arranged in an array and configured to emit light of a first color; a second laser, the second laser comprising a plurality of second light-emitting chips arranged in an array and configured to emit light of a second color; a third laser, the third laser comprising a plurality of third light-emitting chips arranged in an array and configured to emit light of a third color; A beam expansion device, a light combining component and a light output lens, wherein the beam expansion device includes multiple first beam expansion units, multiple second beam expansion units and multiple third beam expansion units, and the first beam expansion unit, the second beam expansion unit and the third beam expansion unit all have a concave cylindrical surface; the first beam expansion unit is located in the light output path of the corresponding first light-emitting chip, the second beam expansion unit is located in the light output path of the corresponding second light-emitting chip, and the third beam expansion unit is located in the light output path of the corresponding third light-emitting chip, and the light combining component is used to combine the output light of the first beam expansion unit, the output light of the second beam expansion unit and the output light of the third beam expansion unit and then output them to the light output lens.

2. The lamp according to claim 1, characterized in that One of the first color light, the second color light, and the third color light is red light, another is green light, and another is blue light.

3. The lamp according to claim 1, characterized in that A plurality of the first beam expansion units are arranged in an array, a plurality of the second beam expansion units are arranged in an array, and a plurality of the third beam expansion units are arranged in an array.

4. The lamp according to claim 1, characterized in that The cylindrical surface of the first beam expansion unit is spherical or aspherical, and the first beam expansion unit is used to diffuse the received first color light and then emit it to the light combining component; the cylindrical surface of the second beam expansion unit is spherical or aspherical, and the second beam expansion unit is used to diffuse the received second color light and then emit it to the light combining component; the cylindrical surface of the third beam expansion unit is spherical or aspherical, and the third beam expansion unit is used to diffuse the received third color light and then emit it to the light combining component.

5. The lamp according to claim 1, characterized in that The lamp also includes a light homogenizing device, which is located in the light output path of the light combining component and is used to homogenize the combined light emitted by the light combining component. The light homogenizing device includes a fly-eye lens or a diffuser.

6. The lamp according to claim 1, characterized in that The light combining assembly includes a first lens and a second lens, the second lens is located in the light exit path of the light exit surface of multiple second beam expansion units and the light path of the third light beam, the second lens is used to reflect the second color light and transmit the third color light; the first lens is located in the light exit path of the second lens and the light exit path of the light exit surface of multiple first beam expansion units, the first lens is used to transmit the first color light and reflect the second color light and the third color light, so that the first color light, the second color light and the third color light are combined and irradiated to the light exit lens.

7. The lamp according to claim 6, characterized in that The second lens is located on the light-emitting path of the light-emitting surfaces of the plurality of third beam expansion units, and the third beam expansion units and the second beam expansion units are respectively located on opposite sides of the second lens.

8. The lamp according to claim 6, characterized in that The light combining assembly also includes a third lens, the second lens is located in the light output path of the third lens, the third lens is located in the light output path of the light output surface of multiple third light beam expansion units, and the third lens is used to reflect the third color light to the second lens.

9. The lamp according to claim 1, characterized in that The lamp further includes a light spot compression lens, which is located in the light output path of the light combining component and is used to reduce the size of the light spot of the combined light emitted by the light combining component in the long axis direction.

10. The lamp according to claim 9, characterized in that The light spot compression lens includes a positive cylindrical lens located in the light output path of the light combining component, or the light spot compression lens includes a positive cylindrical lens and a negative cylindrical lens located in the light output path of the light combining component.

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