Collecting assembly and laser

Abstract

The utility model discloses a collecting assembly and a laser. The collecting assembly comprises a shell and a first baffle. A cavity and a light inlet communicated with the cavity are defined by the shell. The shell is provided with an inner bottom wall facing the light inlet, and the inner bottom wall is inclined relative to the axis of the light inlet. The first baffle is arranged in the cavity and located between the light inlet and the inner bottom wall, the first baffle comprises a first inclined face facing the inner bottom wall, and the first inclined face inclines relative to the axis of the light inlet. The laser is suitable for being reflected to the first inclined face from the inner bottom wall. According to the collection assembly and the laser, the laser collection effect can be guaranteed, the escape amount of the laser is greatly reduced, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser collection, in particular to a collection component and a laser. Background Art

[0002] When relevant personnel are building an optical system or assembling a laser, they will use a laser collector to collect useless waste light to prevent the waste light from irradiating the human body and causing harm.

[0003] In the related art, the laser collector uses an L-shaped metal plane plate to collect laser light, but when the laser light is directly irradiated on the metal plane plate, the laser light will be reflected in all directions, and when the laser intensity is high, the reflected laser light will also harm human skin and eyes. That is, the existing waste light collection effect is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a collection component and a laser, aiming to solve the technical problem of poor laser collection effect.

[0005] To achieve the above-mentioned purpose, the first embodiment of the utility model provides a collecting component for collecting laser light, wherein the collecting component comprises:

[0006] A housing, defining a cavity and a light inlet communicating with the cavity, wherein the housing has an inner bottom wall facing the light inlet, and the inner bottom wall is inclined relative to an axis of the light inlet;

[0007] A first baffle, disposed in the cavity and located between the light inlet and the inner bottom wall, the first baffle comprising a first inclined surface facing the inner bottom wall, the first inclined surface being inclined relative to the axis of the light inlet;

[0008] The laser is suitable for being reflected from the inner bottom wall to the first inclined surface.

[0009] In some embodiments, the inner bottom wall is a conical surface, and the inner bottom wall includes a middle portion and a periphery surrounding the middle portion. Along a direction parallel to the axis of the light inlet, the distance from the middle portion to the light inlet is greater than the distance from the periphery to the light inlet.

[0010] In some embodiments, the first inclined surface is arranged around the axis of the light inlet, and the first inclined surface includes a first side edge close to the inner bottom wall and a second side edge away from the inner bottom wall. Along the direction parallel to the axis of the light inlet, the distance from the first side edge to the light inlet is greater than the distance from the second side edge to the light inlet.

[0011] In some embodiments, the housing includes an inner peripheral wall arranged around the axis, one side of the inner peripheral wall is connected to the inner bottom wall, and the other side of the inner peripheral wall is connected to the first inclined surface to form a first cavity;

[0012] The first side edge is connected to the inner peripheral wall of the housing, and the second side edges are enclosed to form a first opening, and the first opening is connected to the light inlet and the first cavity.

[0013] In some embodiments, the collecting assembly includes a second baffle, which is disposed in the cavity and located on the side of the first baffle away from the inner bottom wall. The second baffle includes a second inclined surface facing the first baffle, and the second inclined surface is inclined relative to the axis of the light inlet. The laser reflected by the inner bottom wall can be irradiated from the first opening to the second inclined surface.

[0014] In some embodiments, the second inclined surface is arranged around the axis of the light inlet, and the second inclined surface includes a third side edge close to the inner bottom wall and a fourth side edge away from the inner bottom wall, and along the direction parallel to the axis of the light inlet, the distance from the third side edge to the light inlet is greater than the distance from the fourth side edge to the light inlet.

[0015] In some embodiments, the third side is connected to the inner peripheral wall and forms a second cavity with the first baffle, and the fourth side is surrounded to form a second opening, and the second opening is connected to the light inlet and the second cavity.

[0016] In some embodiments, the collection assembly includes a heat sink block connected to the shell, the heat sink block includes a liquid flow channel and a liquid inlet and a liquid outlet connected to the liquid flow channel, and the coolant is suitable for entering the liquid flow channel from the liquid inlet and flowing out from the liquid outlet to exchange heat with the shell.

[0017] In some embodiments, the collecting assembly includes a base including long holes arranged vertically, the shell includes a connecting hole, and a fastener is suitable for passing through the connecting hole and the long hole to connect the base and the shell.

[0018] A second aspect of the present invention provides a laser, which includes the collecting component of the above embodiment.

[0019] Compared with the prior art, the beneficial effects of the utility model include:

[0020] In the technical solution of the utility model, the collection component includes a shell and a first baffle. The shell defines a cavity and a light inlet connected to the cavity. The shell has an inner bottom wall facing the light inlet. The first baffle is arranged in the cavity and is located between the light inlet and the inner bottom wall. Compared with the solution of directly collecting laser light using an L-shaped metal flat plate. In this solution, the inner bottom wall of the shell is inclined relative to the axis of the light inlet, and the first inclined surface of the first baffle is inclined relative to the axis of the light inlet. Therefore, after the waste light enters the cavity from the light inlet, it can be efficiently absorbed and reflected by the inner bottom wall, the first inclined surface, etc., that is, the laser can be effectively confined in the cavity, greatly reducing the escape amount of the laser and ensuring the collection effect of the laser. Compared with the solution of using a window to transmit and reflect the laser to achieve laser collection, this solution can omit the operation of arranging the window and reduce costs, and can also avoid the situation where the high laser frequency damages related optical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the assembly connection between the housing and the base in one embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a collection component in one embodiment of the utility model;

[0024] Figure 3 It is a cross-sectional schematic diagram of a collecting assembly in an embodiment of the utility model; wherein the solid long arrow indicates the irradiation path of the laser;

[0025] Figure 4 It is a schematic diagram of the connection between the collecting assembly and the heat sink block in one embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] Collection component 10;

[0028] Housing 100; cavity 110; light inlet 120; axis 121; inner bottom wall 130; middle part 131; peripheral part 132; inner peripheral wall 140; first cavity 141; second cavity 142; connecting hole 150;

[0029] First baffle 200; first inclined surface 210; first side edge 211; second side edge 212; first opening 2121;

[0030] The second baffle 300; the second inclined surface 310; the third side 311; the fourth side 312; the second opening 3121;

[0031] Heat sink block 400; liquid inlet 410; liquid outlet 420;

[0032] Base 500; Long hole 510;

[0033] Fastener 600;

[0034] Vertical Z.

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the related art, the laser collector uses an L-shaped metal plane plate to collect laser light, but when the laser light is directly irradiated on the metal plane plate, the laser light will be reflected in all directions, and when the laser intensity is high, the reflected laser light will also harm human skin and eyes. That is, the existing waste light collection effect is poor.

[0038] In view of this, the first embodiment of the present invention proposes a collection component 10 that can ensure the collection effect of laser light. Figures 1 to 4 The collecting assembly 10 according to the embodiment of the present application is introduced. Specifically, the collecting assembly 10 includes a housing 100 and a first baffle 200 .

[0039] Reference Figures 1 to 3 First, the housing 100 is introduced. The housing 100 defines a cavity 110 and a light inlet 120, and the light inlet 120 can be connected to the cavity 110. It can be understood that the housing 100 can be set to a circular, square or cylindrical shape, etc. The specific shape of the housing 100 can be determined according to actual conditions. Some embodiments of the present application are described by taking the housing 100 as a cylindrical shape. The light inlet 120 can be set on the end wall or peripheral wall of the cylindrical housing 100, referring to Figure 2 Some embodiments of the present application are described by taking the light inlet 120 being disposed on the end wall of the housing 100 as an example.

[0040] The housing 100 includes an inner bottom wall 130, and the inner bottom wall 130 may be arranged facing the light inlet 120. Figure 3With reference to the orientation in FIG. 1 , the light inlet 120 may be disposed on the lower side of the housing 100, and the inner bottom wall 130 may be disposed on the upper side of the housing 100. The inner bottom wall 130 is arranged to be inclined relative to the axis 121 of the light inlet 120. It should be noted that, in some embodiments, the inner bottom wall 130 may be inclined relative to the axis 121 of the light inlet 120 along a single direction as a whole. In other embodiments, the inner bottom wall 130 includes a plurality of parts, and each part may be inclined relative to the axis 121 of the light inlet 120 along different directions. The specific arrangement of the inner bottom wall 130 may be determined according to actual conditions. Some embodiments of the present application are described by taking the case where the plurality of parts of the inner bottom wall 130 are inclined relative to the axis 121 of the light inlet 120 along different directions as an example.

[0041] The specific configuration of the first baffle 200 is described below. The first baffle 200 can be disposed inside the cavity 110 and between the light inlet 120 and the inner bottom wall 130. Therefore, the first baffle 200 can effectively prevent the laser from escaping from the cavity 110 through the light inlet 120. Specifically, the first baffle 200 includes a first inclined surface 210 facing the inner bottom wall 130, so as to prevent the laser from escaping from the cavity 110 through the light inlet 120. Figure 3 With reference to the orientation in FIG. 1 , the wall surface of the first baffle 200 close to the upper side is the first inclined surface 210. The first inclined surface 210 is inclined relative to the axis 121 of the light inlet 120. In some embodiments, the first inclined surface 210 can be inclined relative to the axis 121 of the light inlet 120 along a single direction as a whole. In other embodiments, the first inclined surface 210 includes multiple parts, and each part can be inclined relative to the axis 121 of the light inlet 120 along different directions. The specific setting of the first inclined surface 210 can be determined according to actual conditions. Some embodiments of the present application are described by taking the example that multiple parts of the first inclined surface 210 are inclined relative to the axis 121 of the light inlet 120 along different directions.

[0042] In the technical solution of the utility model, the collection component 10 includes a shell 100 and a first baffle 200. The shell 100 defines a cavity 110 and a light inlet 120 connected to the cavity 110. The shell 100 has an inner bottom wall 130 facing the light inlet 120. The first baffle 200 is arranged in the cavity 110 and is located between the light inlet 120 and the inner bottom wall 130. Compared with the solution of directly collecting laser light using an L-shaped metal flat plate. In this solution, the inner bottom wall 130 of the shell 100 is inclined relative to the axis 121 of the light inlet 120, and the first inclined surface 210 of the first baffle 200 is inclined relative to the axis 121 of the light inlet 120. Therefore, after the waste light enters the cavity 110 from the light inlet 120, it can be efficiently absorbed and reflected by the inner bottom wall 130, the first inclined surface 210, etc., that is, the laser can be effectively confined in the cavity 110, greatly reducing the escape amount of the laser and ensuring the collection effect of the laser. Compared with the solution of using windows to transmit and reflect lasers to achieve laser collection, this solution can omit the operation of arranging windows and reduce costs, and can also avoid the situation where the high laser frequency damages related optical components.

[0043] Reference Figure 3 , the specific configuration of the housing 100 is described below. In some embodiments, the inner bottom wall 130 of the housing 100 may be a conical surface. Specifically, the inner bottom wall 130 includes a middle portion 131 and a peripheral portion 132 surrounding the middle portion 131. Figure 3 The orientation in is used as a reference, that is, along the up and down direction, the distance from the middle part 131 of the inner bottom wall 130 to the light inlet 120 can be greater than the distance from the peripheral part 132 to the light inlet 120. In other words, the inner bottom wall 130 is arranged to protrude toward the light inlet 120. This solution can further enhance the absorption and reflection effect of the inner bottom wall 130 on the laser and reduce the amount of laser escape. In other embodiments, along the direction parallel to the axis 121 of the light inlet 120, the distance from the middle part 131 of the inner bottom wall 130 to the light inlet 120 can also be less than the distance from the peripheral part 132 to the light inlet 120, that is, the inner bottom wall 130 can be arranged to be recessed toward the light inlet 120, and the specific setting of the inner bottom wall 130 can be determined according to actual conditions. It can be understood that the axis of the conical surface can coincide with the axis 121 of the light inlet 120.

[0044] Reference Figure 3, the specific arrangement of the first inclined surface 210 is described below. In some embodiments, the first inclined surface 210 is arranged around the axis 121 of the light inlet 120, that is, the wall surface of the first baffle 200 facing the inner bottom wall 130 can be a continuous inclined surface. In order to facilitate the description and understanding of the specific inclination direction of the first inclined surface 210, the first inclined surface 210 is defined by the side. The first inclined surface 210 includes a first side 211 close to the inner bottom wall 130 and a second side 212 away from the inner bottom wall 130. Along the direction parallel to the axis 121 of the light inlet 120, the distance from the first side 211 to the light inlet 120 is greater than the distance from the second side 212 to the light inlet 120, that is, the first inclined surface 210 is arranged to protrude toward the light inlet 120. This solution can further enhance the absorption and reflection effect of the first inclined surface 210 on the laser and reduce the escape amount of the laser. In other embodiments, along the axis 121 parallel to the light inlet 120, the distance from the first side 211 to the light inlet 120 is smaller than the distance from the second side 212 to the light inlet 120, that is, the first inclined surface 210 may be arranged concave toward the light inlet 120. The specific arrangement of the first inclined surface 210 may be determined according to actual conditions.

[0045] Reference Figure 3 , the specific arrangement of the first baffle 200 in the cavity 110 is described below. In some embodiments, the housing 100 includes an inner peripheral wall 140 arranged around the axis 121 of the light inlet 120. One side of the inner peripheral wall 140 can be connected to the inner bottom wall 130, and the other side can be connected to the first inclined surface 210 of the first baffle 200, that is, the inner peripheral wall 140, the inner bottom wall 130 and the first inclined surface 210 can be together to form a first cavity 141. Specifically, the first side edge 211 of the first inclined surface 210 can be connected to the inner peripheral wall 140 of the housing 100, and the second side edge 212 of the first inclined surface 210 can be together to form a first opening 2121. The first opening 2121 can connect the light inlet 120 and the first cavity 141, that is, the laser can enter the first opening 2121 from the light inlet 120, and then enter the first cavity 141 from the first opening 2121 to achieve laser collection.

[0046] Reference Figure 3 , the specific arrangement of the second baffle 300 in the cavity 110 is described below. In some embodiments, the second baffle 300 is located on the side of the first baffle 200 away from the inner bottom wall 130, that is, the second baffle 300 is located between the first baffle 200 and the light inlet 120, so the second baffle 300 can effectively prevent the laser from escaping from the cavity 110 through the light inlet 120.

[0047] The second baffle plate 300 includes a second inclined surface 310 facing the first baffle plate 200. Figure 3The orientation in is used as a reference, and the wall surface close to the upper side of the second baffle 300 is the second inclined surface 310. The second inclined surface 310 is inclined relative to the axis 121 of the light inlet 120. In some embodiments, the second inclined surface 310 can be inclined relative to the axis 121 of the light inlet 120 in a single direction as a whole. In other embodiments, the second inclined surface 310 includes multiple parts, and each part can be inclined relative to the axis 121 of the light inlet 120 in different directions. The specific setting of the second inclined surface 310 can be determined according to actual conditions. Some embodiments of the present application are described by taking the example that multiple parts of the second inclined surface 310 are inclined relative to the axis 121 of the light inlet 120 in different directions. In this solution, the laser reflected by the inner bottom wall 130 can be irradiated to the second inclined surface 310 by the first opening 2121, that is, the second inclined surface 310 can perform secondary reflection and absorption on the laser, so the collection effect of the laser can be further improved.

[0048] Reference Figure 3 , the specific arrangement of the second inclined surface 310 is described below. In some embodiments, the second inclined surface 310 is arranged around the axis 121 of the light inlet 120, that is, the wall surface of the second baffle 300 facing the inner bottom wall 130 can be a continuous inclined surface. In order to facilitate the description and understanding of the specific inclination direction of the second inclined surface 310, the second inclined surface 310 is defined by the side. The second inclined surface 310 includes a third side 311 close to the inner bottom wall 130 and a fourth side 312 away from the inner bottom wall 130. Along the direction parallel to the axis 121 of the light inlet 120, the distance from the third side 311 to the light inlet 120 is greater than the distance from the fourth side 312 to the light inlet 120, that is, the second inclined surface 310 is arranged to protrude toward the light inlet 120. This solution can further enhance the absorption and reflection effect of the second inclined surface 310 on the laser and reduce the escape amount of the laser. In other embodiments, along a direction parallel to the axis 121 of the light inlet 120, the distance from the third side 311 to the light inlet 120 is less than the distance from the fourth side 312 to the light inlet 120, that is, the second inclined surface 310 may be arranged concave toward the light inlet 120. The specific arrangement of the second inclined surface 310 may be determined according to actual conditions.

[0049] Reference Figure 3, the specific arrangement of the second baffle 300 in the cavity 110 is described below. In some embodiments, the housing 100 includes an inner peripheral wall 140 arranged around the axis 121 of the light inlet 120. The third side 311 connects the inner peripheral wall 140 and forms a second cavity 142 with the first baffle 200. It can be understood that the second cavity 142 can be located between the first cavity 141 and the light inlet 120. The fourth side 312 can enclose a second opening 3121, and the second opening 3121 can connect the light inlet 120 and the second cavity 142. That is, the laser can pass through the second opening 3121 from the light inlet 120, and then pass through the first opening 2121 from the second opening 3121 to the inner bottom wall 130, so the laser can be reflected and absorbed multiple times in the first cavity 141 and the second cavity 142, further reducing the escape amount of the laser.

[0050] The laser incident on the housing 100 will cause the temperature of the housing 100 to rise, that is, it will cause the temperature of the collecting component 10 to rise. Figure 4 In some embodiments, the collection component 10 is further provided with a heat sink block 400, and the heat sink block 400 can be connected to the shell 100. Specifically, the heat sink block 400 can be connected to the end wall of the shell 100 on the side away from the light inlet 120. It should be noted that the end wall of the shell 100 for connecting the heat sink block 400 can be coated with a thermally conductive material so that the heat of the shell 100 can be fully conducted to the heat sink block 400. In addition, the heat sink block 400 includes a liquid inlet 410, a liquid outlet 420 and a liquid flow channel, and the liquid inlet 410 and the liquid outlet 420 are both connected to the liquid flow channel. That is, the coolant can enter the liquid flow channel from the liquid inlet 410 and flow out from the liquid outlet 420, so that sufficient heat exchange is performed between the heat sink block 400 and the shell 100, thereby reducing the temperature of the shell 100. It can be understood that the coolant can be water or other liquids.

[0051] Reference Figure 1 In some embodiments, the collection component 10 includes a base 500, and the base 500 can support the shell 100. The base 500 has an elongated hole 510 arranged along the vertical direction X, and the specific extension length of the elongated hole 510 can be determined according to actual conditions. The shell 100 includes a connecting hole 150, and a fastener 600 can be provided through the connecting hole 150 and the elongated hole 510 to connect the base and the shell 100. The fastener 600 can be a butterfly nut. The base 500 of this solution is detachably connected to the shell 100. Since the base 500 is provided with the elongated hole 510, the height adjustment of the collection component 10 can be realized, thereby adapting to laser collection requirements of different heights. It can be understood that the base 500 can be bolted to the optical platform to ensure the stability of the assembly connection of the collection component 10.

[0052] The second embodiment of the utility model provides a laser, which includes the collection component 10 of the above embodiment. In this solution, the waste light can be effectively confined in the cavity 110 of the collection component 10, greatly reducing the escape amount of the laser and ensuring the collection effect of the laser.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0055] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A collecting assembly (10) for collecting laser light, characterized in that: The collecting assembly (10) comprises: A housing (100) defines a cavity (110) and a light inlet (120) communicating with the cavity (110), the housing (100) having an inner bottom wall (130) facing the light inlet (120), the inner bottom wall (130) being inclined relative to an axis (121) of the light inlet (120); a first baffle (200), disposed in the cavity (110) and located between the light inlet (120) and the inner bottom wall (130), the first baffle (200) comprising a first inclined surface (210) facing the inner bottom wall (130), the first inclined surface (210) being inclined relative to an axis (121) of the light inlet (120); The laser is suitable for being reflected from the inner bottom wall (130) to the first inclined surface (210).

2. The collecting assembly (10) according to claim 1, characterized in that: The inner bottom wall (130) is a conical surface, and the inner bottom wall (130) includes a middle portion (131) and a peripheral portion (132) surrounding the middle portion (131), and along a direction parallel to the axis (121) of the light inlet (120), the distance from the middle portion (131) to the light inlet (120) is greater than the distance from the peripheral portion (132) to the light inlet (120).

3. The collecting assembly (10) according to claim 1, characterized in that: The first inclined surface (210) is arranged around the axis (121) of the light inlet (120), and the first inclined surface (210) includes a first side edge (211) close to the inner bottom wall (130) and a second side edge (212) away from the inner bottom wall (130), and along a direction parallel to the axis (121) of the light inlet (120), the distance from the first side edge (211) to the light inlet (120) is greater than the distance from the second side edge (212) to the light inlet (120).

4. The collecting assembly (10) according to claim 3, characterized in that: The housing (100) comprises an inner peripheral wall (140) arranged around the axis (121), one side of the inner peripheral wall (140) being connected to the inner bottom wall (130), and the other side of the inner peripheral wall (140) being connected to the first inclined surface (210) to form a first cavity (141); The first side edge (211) is connected to the inner peripheral wall (140) of the housing (100), and the second side edge (212) is enclosed to form a first opening (2121), and the first opening (2121) is connected to the light inlet (120) and the first cavity (141).

5. The collecting assembly (10) according to claim 4, characterized in that: Also includes: A second baffle (300) is arranged in the cavity (110) and is located on a side of the first baffle (200) away from the inner bottom wall (130), the second baffle (300) comprising a second inclined surface (310) facing the first baffle (200), the second inclined surface (310) being inclined relative to the axis (121) of the light inlet (120), and the laser reflected by the inner bottom wall (130) can be irradiated from the first opening (2121) to the second inclined surface (310).

6. The collecting assembly (10) according to claim 5, characterized in that The second inclined surface (310) is arranged around the axis (121) of the light inlet (120), and the second inclined surface (310) includes a third side edge (311) close to the inner bottom wall (130) and a fourth side edge (312) away from the inner bottom wall (130), and along a direction parallel to the axis (121) of the light inlet (120), the distance from the third side edge (311) to the light inlet (120) is greater than the distance from the fourth side edge (312) to the light inlet (120).

7. The collecting assembly (10) according to claim 6, characterized in that The third side edge (311) is connected to the inner peripheral wall (140) and forms a second cavity (142) with the first baffle (200), and the fourth side edge (312) is surrounded to form a second opening (3121), and the second opening (3121) is connected to the light inlet (120) and the second cavity (142).

8. The collecting assembly (10) according to claim 1, characterized in that: Also includes: A heat sink block (400) is connected to the shell (100), and the heat sink block (400) includes a liquid flow channel and a liquid inlet (410) and a liquid outlet (420) that are in communication with the liquid flow channel. Cooling liquid is suitable for entering the liquid flow channel from the liquid inlet (410) and flowing out from the liquid outlet (420) to perform heat exchange with the shell (100).

9. The collecting assembly (10) according to claim 1, characterized in that: Also includes: The base (500) includes a long hole (510) arranged in a vertical direction, and the shell (100) includes a connecting hole (150). The fastener (600) is suitable for penetrating the connecting hole (150) and the long hole (510) to connect the base (500) and the shell (100).

10. A laser, characterized in that It comprises a collecting assembly (10) as claimed in any one of claims 1 to 9.

Images