Line scanning surface light source

Abstract

The invention discloses a line scanning surface light source, and relates to the technical field of light sources. The line scanning surface light source comprises a shell, an illumination assembly and a heat dissipation assembly. The plurality of light-emitting chips are respectively connected with the plurality of pins; the control panel is located on the side, away from the transparent panel, of the lamp panel and spaced from the panel body. The heat dissipation plate is located between the plate body and the control plate and abuts against the bottom end of the plate body. A through groove is formed in the heat dissipation plate and penetrates through the top end and the bottom end of the heat dissipation plate; the plurality of pins are respectively arranged in the plurality of through grooves in a one-to-one penetrating manner; the heat dissipation fans are arranged at the first through opening and the second through opening and face the heat dissipation plate. The light-emitting chip can be controlled to be independently turned on and turned off through the control panel, the control panel can control the lamp panel to selectively emit visible light and invisible light, the detection efficiency is improved, the time needed for detection is shortened, pins of the lamp panel penetrate through the through grooves of the heat dissipation plate, the heat dissipation fans are installed at the first through opening and the second through opening, and the heat dissipation efficiency is improved. The overall thickness of the line scanning surface light source is reduced, and the occupied space is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of light sources, and particularly to a line-scanning surface light source. Background Art

[0002] Existing 2.5D line-scanning surface light sources basically use monochromatic lamp beads to control line scanning. When a certain product needs to be detected for visible light and invisible light, usually two detection platforms are required for secondary detection. In this way, not only is the detection cost relatively high, but also the required detection time is relatively long. However, if the visible light structure and the invisible light structure are combined, it will cause the overall structure of the 2.5D line-scanning surface light source to be relatively large, and the occupied space will also increase accordingly. Summary of the Invention

[0003] An object of the present invention is to overcome the above-mentioned defects in the prior art and provide a line-scanning surface light source that can selectively emit visible light and invisible light and occupies a relatively small space.

[0004] To achieve the above object, the present invention provides a line-scanning surface light source, which includes a housing. The housing includes a housing body and a transparent plate. The housing body is provided with a receiving cavity, an opening, and a first through hole. The opening is provided at the top end of the receiving cavity and is communicated with the receiving cavity. The first through hole is provided at the bottom end of the receiving cavity and is communicated with the receiving cavity. The transparent plate is provided at the opening. A lighting assembly is provided in the receiving cavity. The lighting assembly includes a lamp board and a control board. The lamp board is located below the transparent plate. The lamp board has a board body, light-emitting chips, and pins. There are multiple light-emitting chips and pins. Multiple light-emitting chips are all provided on the board body and are respectively connected to multiple pins. The control board is located on the side of the lamp board away from the transparent plate and is spaced from the board body. The pins are electrically connected to the control board. The control board is provided with a second through hole, and the second through hole is disposed opposite to the first through hole. A heat dissipation assembly includes a heat dissipation plate and a heat dissipation fan. The heat dissipation plate is located between the board body and the control board and abuts against the bottom end of the board body. A through groove is provided on the heat dissipation plate, and the through groove penetrates through the top end and the bottom end of the heat dissipation plate. Multiple pins respectively pass through multiple through grooves one by one. The heat dissipation fan is provided at the first through hole and the second through hole and faces the heat dissipation plate.

[0005] Furthermore, it further includes a debugging laser and a laser fixing seat. The laser fixing seat is connected to the outer side end of the housing body, and the debugging laser is detachably connected to the laser fixing seat.

[0006] Furthermore, a plurality of the first through ports and the second through ports are provided, and the plurality of the first through ports and the plurality of the second through ports are arranged opposite to each other one by one; a plurality of the heat dissipation fans are provided and are respectively arranged at the plurality of opposite first through ports and second through ports.

[0007] Furthermore, the through groove is arranged at a side end of the heat dissipation plate, and the side end of the heat dissipation plate provided with the through groove abuts against the inner side wall of the accommodating cavity. An accommodating space is defined between the inner side wall of the accommodating cavity and the groove wall of the through groove. The pin penetrates through the accommodating space and abuts against the peripheral wall of the accommodating space.

[0008] Furthermore, a limiting boss is arranged on the inner side wall of the accommodating cavity, and the limiting boss abuts against the bottom end of the heat dissipation plate.

[0009] Furthermore, a strip-shaped groove is arranged at the bottom end of the heat dissipation plate. The strip-shaped groove extends along a first direction, and a plurality of the strip-shaped grooves are arranged at intervals in sequence along a second direction; the first direction and the second direction are perpendicular to each other.

[0010] Furthermore, the housing includes a bottom plate and side plates; four side plates are provided and are connected end to end in sequence. One ends of the four side plates are connected to the top end of the bottom plate and define the accommodating cavity with the bottom plate; the transparent plate is connected to one ends of at least some of the side plates away from the bottom plate.

[0011] Furthermore, the housing further includes a light shielding plate and a maintenance cover plate; the maintenance cover plate is arranged at the opening and, together with the transparent plate, covers the opening. Two ends of the light shielding plate are connected to two opposite side plates, and the light shielding plate abuts against the maintenance cover plate, the heat dissipation plate and the lamp board.

[0012] Furthermore, the housing includes a diffuser plate, and the diffuser plate is arranged between the transparent plate and the lamp board.

[0013] Furthermore, the housing further includes a diffusion film, and the diffusion film is arranged between the transparent plate and the diffuser plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The lamp board is located below the transparent board, and the lamp board is connected to the control board through pins. The control board can control the light-emitting chips on the lamp board to emit light, and the light emitted by the light-emitting chips can shine out through the transparent board. There are multiple light-emitting chips on the lamp board, and the multiple light-emitting chips are electrically connected to the control board through multiple pins. The control board can control the light-emitting chips to start and turn off individually, so that the control board can control the lamp board to emit visible light and invisible light, improving the detection efficiency and reducing the detection time required.

[0016] 2. The heat dissipation board is in contact with the lamp board, and the heat generated by the lamp board can be conducted to the heat dissipation board. The heat dissipation board dissipates heat for the lamp board. The heat dissipation board is arranged between the lamp board and the control board to ensure the heat dissipation efficiency of the heat dissipation board. Moreover, the pins of the lamp board pass through the through-holes of the heat dissipation board, which can reduce the overall thickness of the line-scanning surface light source of the present invention.

[0017] 3. The heat dissipation fan can directly blow air towards the heat dissipation board to reduce the temperature of the heat dissipation board and improve the heat dissipation effect. Moreover, the first through-hole of the housing is arranged opposite to the second through-hole on the control board, and the heat dissipation fan is installed at the first through-hole and the second through-hole, which can reduce the thickness space occupied by the heat dissipation fan, further reducing the overall thickness of the line-scanning surface light source and the space it occupies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technology in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the line-scanning surface light source of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the line-scanning surface light source of the present invention from another perspective;

[0021] Figure 3 It is an exploded view of the line-scanning surface light source of the present invention;

[0022] Figure 4 It is a cross-sectional view of the line-scanning surface light source of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the heat dissipation board of the line-scanning surface light source of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the lamp board of the line-scanning surface light source of the present invention;

[0025] Figure 7 Schematic diagram of the housing of the line scanning light source of the present invention;

[0026] Figure 8 Schematic diagram of the control board of the line scanning light source of the present invention.

[0027] Reference numerals:

[0028] Outer shell 100; housing 110; first through port 101; opening 102; accommodation cavity 103; limiting boss 104; bottom plate 111; side plate 112; light shielding plate 113; maintenance cover plate 114; diffuser plate 115; diffusion film 116; transparent plate 120; lamp board 200; board body 210; pins 220; control board 300; second through port 310; heat dissipation plate 400; through groove 410; strip-shaped groove 420; heat dissipation fan 500; debugging laser 600; laser fixing seat 700. Detailed implementation manners

[0029] Next, the technology in the present embodiment of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present embodiment of the present invention. Obviously, the described present embodiment is an embodiment of the present invention, rather than all embodiments of the present invention. Based on the present embodiment of the present invention, all other present embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0032] Please refer to Figures 1 to 8, an embodiment of the present invention provides a line scanning surface light source, which includes a housing 100, a lighting component and a heat dissipation component; the housing 100 includes a housing body 110 and a transparent plate 120; the housing body 110 is provided with a receiving cavity 103, an opening 102 and a first through port 101; the opening 102 is arranged at the top of the receiving cavity 103 and is communicated with the receiving cavity 103; the first through port 101 is arranged at the bottom of the receiving cavity 103 and is communicated with the receiving cavity 103; the transparent plate 120 is arranged at the opening 102; the lighting component is arranged in the receiving cavity 103; the lighting component includes a lamp board 200 and a control board 300; the lamp board 200 is located below the transparent plate 120; the lamp board 200 has a board body 210, light-emitting chips and pins 220; there are multiple light-emitting chips and pins 220; multiple light-emitting chips are all arranged on the board body 210 and are respectively connected to multiple pins 220; the control board 300 is located on the side of the lamp board 200 away from the transparent plate 120 and is arranged at an interval from the board body 210; the pins 220 are electrically connected to the control board 300; the control board 300 is provided with a second through port 310, and the second through port 310 is arranged opposite to the first through port 101; the heat dissipation component includes a heat dissipation plate 400 and a heat dissipation fan 500; the heat dissipation plate 400 is located between the board body 210 and the control board 300 and abuts against the bottom end of the board body 210; the heat dissipation plate 400 is provided with a through groove 410, and the through groove 410 runs through the top and bottom ends of the heat dissipation plate 400; multiple pins 220 respectively pass through multiple through grooves 410; the heat dissipation fan 500 is arranged at the first through port 101 and the second through port 310 and is arranged towards the heat dissipation plate 400.

[0033] The lamp board 200 is located below the transparent plate 120, and the lamp board 200 is connected to the control board 300 through the pins 220. The light-emitting chips on the lamp board 200 can be controlled by the control board 300 to emit light, and the light emitted by the light-emitting chips can shine out through the transparent plate 120; and there are multiple light-emitting chips on the lamp board 200, and the multiple light-emitting chips are electrically connected to the control board 300 through multiple pins 220. The control board 300 can control the light-emitting chips to start and turn off individually, so that the control board 300 can control the lamp board 200 to select to emit visible light and invisible light, improve the detection efficiency and reduce the time required for detection.

[0034] The heat dissipation plate 400 abuts against the lamp board 200, and the heat generated by the lamp board 200 can be conducted to the heat dissipation plate 400. The heat dissipation plate 400 dissipates heat for the lamp board 200. The heat dissipation plate 400 is arranged between the lamp board 200 and the control board 300 to ensure the heat dissipation efficiency of the heat dissipation plate 400. Moreover, the pins 220 of the lamp board 200 pass through the through grooves 410 of the heat dissipation plate 400, which can reduce the overall thickness of the line scanning surface light source of the present invention.

[0035] The cooling fan 500 can directly blow air towards the heat dissipation plate 400 to reduce the temperature of the heat dissipation plate 400 and improve the heat dissipation effect. Moreover, the first through-hole 101 of the housing 110 is arranged opposite to the second through-hole 310 on the control board 300, and the cooling fan 500 is installed at the first through-hole 101 and the second through-hole 310, which can reduce the thickness space occupied by the cooling fan 500, so as to further reduce the overall thickness of the line scan light source and the occupied space size.

[0036] Specifically, there are four light-emitting chips on the lamp board 200, which are combined by two infrared and two white light chips. There are eight 8-pin 220s and a common positive design is adopted. Therefore, each light-emitting chip can be independently controlled to turn on and off through the control board 300, solving the problem that the traditional 2.5D line scan light source cannot realize the scenario of using visible and invisible light simultaneously, and reducing the detection cost and improving the efficiency.

[0037] Refer to Figures 1 to 3 , in some embodiments of the present invention, there are also a debugging laser 600 and a laser fixing seat 700; the laser fixing seat 700 is connected to the outer end of the housing 110, and the debugging laser 600 is detachably connected to the laser fixing seat 700.

[0038] By setting the laser fixing seat 700, the debugging laser 600 can be installed outside the housing 110 to define the position between the debugging laser 600 and the lamp board 200, which is more convenient and accurate when using the light source to assume the detection platform. The debugging laser 600 is detachably connected to the laser fixing seat 700, and the debugging laser 600 can be detached when using the lamp board 200, improving the convenience.

[0039] Refer to Figure 2 、 Figure 3 、 Figure 7 and Figure 8 , in some embodiments of the present invention, there are multiple first through-holes 101 and multiple second through-holes 310. The multiple first through-holes 101 are arranged opposite to the multiple second through-holes 310 one by one; there are multiple cooling fans 500, which are respectively arranged at the multiple opposite first through-holes 101 and second through-holes 310.

[0040] The number of the first through-holes 101 on the housing 110 is equal to the number of the second through-holes 310 on the control board 300. After the control board 300 is placed in the accommodation cavity 103, the first through-holes 101 on the bottom of the housing 110 are arranged opposite to the second through-holes 310 on the control board 300 one by one. Each cooling fan 500 is installed at the opposite first through-hole 101 and second through-hole 310, so that the cooling fan 500 can be embedded in the bottom of the housing 110 and the control board 300, reducing the space size occupied by the cooling fan 500, so as to reduce the thickness of the line scan light source.

[0041] Specifically, a plurality of first through-holes 101 and a plurality of second through-holes 310 are arranged at intervals in sequence along the length direction of the heat dissipation plate 400, so as to improve the heat dissipation effect of the heat dissipation fan 500 on the heat dissipation plate 400.

[0042] Referring to Figures 4 to 6 , in some embodiments of the present invention, the through groove 410 is provided at the side end of the heat dissipation plate 400, the side end of the heat dissipation plate 400 abuts against the inner side wall of the accommodation cavity 103, and an accommodation space is defined between the inner side wall of the accommodation cavity 103 and the groove wall of the through groove 410. The pin 220 passes through the accommodation space and abuts against the peripheral wall of the accommodation space.

[0043] After the heat dissipation plate 400 is placed in the accommodation cavity 103, the side end of the heat dissipation plate 400 abuts against the inner side wall of the accommodation cavity 103. The through groove 410 is provided at the side end of the heat dissipation plate 400. An accommodation space for placing the pin 220 is defined between the groove wall of the through groove 410 and the inner side wall of the accommodation cavity 103. The pin 220 passes through the accommodation space and is electrically connected to the control board 300; wherein, the pin 220 abuts against the peripheral wall of the accommodation space, that is, the pin 220 abuts against the groove wall of the through groove 410 and the inner side wall of the accommodation cavity 103, so that the accommodation space can define the position of the pin 220, reducing the possibility of the pin 220 being bent. And after the heat generated by the light-emitting chip is conducted to the pin 220, the pin 220 can conduct the heat to the heat dissipation plate 400 and the housing 110, improving the heat dissipation efficiency.

[0044] Specifically, the adjacent through grooves 410 are arranged at intervals to prevent the pins 220 from touching each other by mistake.

[0045] Referring to Figure 7 , in some embodiments of the present invention, a limiting boss 104 is provided on the inner side wall of the accommodation cavity 103, and the limiting boss 104 abuts against the bottom end of the heat dissipation plate 400.

[0046] After the heat dissipation plate 400 is placed in the accommodation cavity 103, the bottom end of the heat dissipation plate 400 abuts against the limiting boss 104 to limit the position of the heat dissipation plate 400, avoiding the heat dissipation plate 400 from abutting against the control board 300, reducing the heat that the control board 300 can receive, and thus ensuring that the control board 300 can work normally.

[0047] Specifically, there are two limiting ribs, and they are respectively provided on the opposite inner side walls of the accommodation cavity 103.

[0048] Referring to Figure 5 , in some embodiments of the present invention, a strip-shaped groove 420 is provided at the bottom end of the heat dissipation plate 400. The strip-shaped groove 420 extends along a first direction, and a plurality of strip-shaped grooves 420 are provided. The plurality of strip-shaped grooves 420 are arranged at intervals in sequence along a second direction; the first direction and the second direction are perpendicular to each other.

[0049] The heat dissipation plate 400 is provided with a plurality of strip-shaped grooves 420, which can increase the contact area between the heat dissipation plate 400 and air, improve the heat dissipation efficiency of the heat dissipation plate 400. The strip-shaped grooves 420 extend along the first direction, so that the airflow blown out by the heat dissipation fan 500 can flow along the strip-shaped grooves 420, reducing the loss speed of the airflow during flow and improving the heat dissipation efficiency; the plurality of strip-shaped grooves 420 are arranged along the second direction to further improve the heat dissipation efficiency.

[0050] Specifically, the first direction is set in the same direction as the length direction of the heat dissipation plate 400, and the second direction is set in the same direction as the width direction of the heat dissipation plate 400.

[0051] Refer to Figure 1 、 Figure 3 and Figure 7 In some embodiments of the present invention, the housing 110 includes a bottom plate 111 and side plates 112; there are four side plates 112 which are connected end to end in sequence. One end of the four side plates 112 is connected to the top end of the bottom plate 111, and together with the bottom plate 111, they define a receiving cavity 103; the transparent plate 120 is connected to one end of at least some of the side plates 112 away from the bottom plate 111.

[0052] One end of the four side plates 112 is connected to the top end of the bottom plate 111, and the transparent plate 120 is connected to one end of at least some of the side plates 112 away from the bottom plate 111, so as to reduce the degree of light leakage and improve the accuracy of detection.

[0053] Specifically, the transparent plate 120 abuts against three side plates 112 to further reduce the degree of light leakage.

[0054] Refer to Figure 3 In some embodiments of the present invention, the housing 110 further includes a light shielding plate 113 and a maintenance cover plate 114; the maintenance cover plate 114 is disposed at the opening 102 and, together with the transparent plate 120, covers the opening 102. Both ends of the light shielding plate 113 are connected to two opposite side plates 112 and abut against the maintenance cover plate 114, the heat dissipation plate 400, and the lamp board 200.

[0055] The maintenance cover plate 114 and the transparent plate 120 cover and seal the opening 102 to prevent external substances from entering the receiving cavity 103 through the opening 102, ensuring that the working structures in the receiving cavity 103 can work properly.

[0056] Both ends of the light shielding plate 113 are connected to two opposite side plates 112 to define the position of the light shielding plate 113; the light shielding plate 113 abuts against the maintenance cover plate 114, the heat dissipation plate 400, and the lamp board 200, so as to block the light emitted by the lamp board 200 from being emitted from the side and reduce the light leakage effect.

[0057] Specifically, the light shield 113 is connected to two opposite side plates 112, and the light shield 113 is spaced apart from the other two opposite side plates 112.

[0058] Referring to Figure 3 , in some embodiments of the present invention, the housing 110 includes a diffuser plate 115, and the diffuser plate 115 is disposed between the transparent plate 120 and the lamp board 200.

[0059] The light emitted by the lamp board 200 needs to diverge outward through the diffuser plate 115. By providing the diffuser plate 115, it can convert the direct light emitted by the lamp board 200 into diffused light evenly distributed in all directions, eliminating the directional interference of specular reflection.

[0060] Referring to Figure 3 , in some embodiments of the present invention, the housing 110 further includes a diffusion film 116, and the diffusion film 116 is disposed between the transparent plate 120 and the diffuser plate 115.

[0061] The light emitted by the lamp board 200 needs to diverge outward through the diffusion film 116. By providing the diffusion film 116, it can convert the direct light emitted by the lamp board 200 into diffused light evenly distributed in all directions, eliminating the directional interference of specular reflection.

[0062] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Line scanning surface light source, characterized in that, Comprising: A housing (100), including a housing body (110) and a transparent plate (120); the housing body (110) is provided with a receiving cavity (103), an opening (102) and a first through port (101); the opening (102) is provided at the top of the receiving cavity (103) and is communicated with the receiving cavity (103); the first through port (101) is provided at the bottom of the receiving cavity (103) and is communicated with the receiving cavity (103); the transparent plate (120) is provided at the opening (102); A lighting assembly, arranged in the receiving cavity (103); the lighting assembly includes a lamp board (200) and a control board (300); the lamp board (200) is located below the transparent plate (120); the lamp board (200) has a board body (210), light-emitting chips and pins (220); there are multiple light-emitting chips and multiple pins (220); multiple light-emitting chips are all arranged on the board body (210) and are respectively connected to multiple pins (220); the control board (300) is located on the side of the lamp board (200) away from the transparent plate (120) and is arranged at an interval from the board body (210); the pins (220) are electrically connected to the control board (300); the control board (300) is provided with a second through port (310), and the second through port (310) is arranged opposite to the first through port (101); A heat dissipation assembly, including a heat dissipation plate (400) and a heat dissipation fan (500); the heat dissipation plate (400) is located between the board body (210) and the control board (300) and abuts against the bottom end of the board body (210); the heat dissipation plate (400) is provided with a through groove (410), and the through groove (410) runs through the top and bottom ends of the heat dissipation plate (400); multiple pins (220) respectively pass through multiple through grooves (410); the heat dissipation fan (500) is arranged at the first through port (101) and the second through port (310) and faces the heat dissipation plate (400).

2. The line scanning surface light source according to claim 1, wherein It further includes a debugging laser (600) and a laser fixing seat (700); the laser fixing seat (700) is connected to the outer side end of the housing body (110), and the debugging laser (600) is detachably connected to the laser fixing seat (700).

3. The line scanning surface light source according to claim 1, characterized in that, There are multiple first through ports (101) and multiple second through ports (310), and multiple first through ports (101) are arranged opposite to multiple second through ports (310) one by one; there are multiple heat dissipation fans (500), and they are respectively arranged at multiple opposite first through ports (101) and second through ports (310).

4. The line scanning surface light source according to claim 1, characterized in that, The through groove (410) is arranged at the side end of the heat dissipation plate (400). The side end of the heat dissipation plate (400) where the through groove (410) is arranged abuts against the inner side wall of the accommodation cavity (103). An accommodation space is defined between the inner side wall of the accommodation cavity (103) and the groove wall of the through groove (410). The pin (220) passes through the accommodation space and abuts against the peripheral wall of the accommodation space.

5. The line scanning light source according to claim 1, characterized in that, A limiting boss (104) is arranged on the inner side wall of the accommodation cavity (103), and the limiting boss (104) abuts against the bottom end of the heat dissipation plate (400).

6. The line scanning surface light source according to claim 1, wherein, A strip groove (420) is arranged at the bottom end of the heat dissipation plate (400). The strip groove (420) extends along a first direction. A plurality of the strip grooves (420) are arranged, and the plurality of strip grooves (420) are arranged at intervals in sequence along a second direction; the first direction and the second direction are perpendicular to each other.

7. The line scanning surface light source according to claim 1, characterized in that, The housing (110) includes a bottom plate (111) and side plates (112); there are four side plates (112) which are connected end to end in sequence. One end of the four side plates (112) is connected to the top end of the bottom plate (111), and the accommodation cavity (103) is defined with the bottom plate (111); the transparent plate (120) is connected to one end of at least part of the side plates (112) away from the bottom plate (111).

8. The line scanning surface light source according to claim 7, characterized in that The housing (110) further includes a light shielding plate (113) and a maintenance cover plate (114); the maintenance cover plate (114) is arranged at the opening (102), and the transparent plate (120) and the maintenance cover plate (114) cover the opening (102). Both ends of the light shielding plate (113) are connected to two opposite side plates (112), and the light shielding plate (113) abuts against the maintenance cover plate (114), the heat dissipation plate (400) and the lamp board (200).

9. The line-scanning surface light source according to claim 1, wherein The housing (110) includes a diffuser plate (115), and the diffuser plate (115) is arranged between the transparent plate (120) and the lamp board (200).

10. The line-scanning surface light source according to claim 9, wherein The housing (110) further includes a diffusion film (116), and the diffusion film (116) is arranged between the transparent plate (120) and the diffuser plate (115).

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