Spot adjustable linear light source

Abstract

The utility model discloses the light spot adjustable linear light source relates to in the technical field of detection light source. Light spot adjustable linear light source includes luminous subassembly, first adjusting assembly and second adjusting assembly, and luminous subassembly includes seat body, luminous piece and spotlight stick, seat body is provided with containing chamber and light outlet, light outlet sets up in the bottom of seat body, and is communicated with containing chamber setting, luminous piece and spotlight stick all are located in containing chamber, and all are located above light outlet, luminous piece is located above spotlight stick, first adjusting assembly is connected with luminous piece, and can drive luminous piece to move up and down, second adjusting assembly is connected with spotlight stick, and can drive spotlight stick to move up and down. The light spot adjustable linear light source can independently adjust the position of luminous piece and spotlight stick in the seat body through first adjusting assembly and second adjusting assembly, and the adaptability is better.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a linear light source with adjustable light spot. Background Technology

[0002] In the field of machine vision, it is usually necessary to use a light source to illuminate the product when inspecting its appearance. Among them, linear light sources are widely used in the inspection process.

[0003] Linear light sources are the core components of line scan cameras for scanning and inspection. The performance of a linear light source is mainly determined by two factors: the position of the LED light-emitting point, which determines the light convergence angle and brightness, and the focal length of the cylindrical mirror, which determines the spot width and optimal working distance. However, conventional linear light sources use a fixed design for the LED and cylindrical mirror, meaning that the positions of the LED and cylindrical mirror are fixed inside the linear light source. Once the model of the linear light source is selected, its working distance and spot characteristics are determined, making it unable to adapt to different object distances and inspection requirements, resulting in poor applicability. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a linear light source with adjustable light spot, which can independently adjust the relative position of the light-emitting element and the focusing rod, and has good adaptability.

[0005] To achieve the above objectives, this utility model provides a linear light source with adjustable light spot. The linear light source with adjustable light spot includes a light-emitting component, a first adjustment component, and a second adjustment component. The light-emitting component includes a base, a light-emitting element, and a focusing rod. The base is provided with a receiving cavity and a light-emitting port. The light-emitting port is located at the bottom end of the base and communicates with the receiving cavity. The light-emitting element and the focusing rod are both located within the receiving cavity and above the light-emitting port. The light-emitting element is located above the focusing rod. The first adjustment component is connected to the light-emitting element and can drive the light-emitting element to move up and down. The second adjustment component is connected to the focusing rod and can drive the focusing rod to move up and down.

[0006] Furthermore, the first adjustment component includes a heat sink, a first lead screw, a first nut, a first bearing, and a first knob; the heat sink is movably disposed within the receiving cavity; the light-emitting element is disposed at the bottom end of the heat sink; a first connecting hole is provided at the top end of the base, and a second connecting hole is provided on the heat sink, the first connecting hole and the second connecting hole being vertically connected and opposite to each other; the first bearing is fixedly disposed at the first connecting hole, and the first nut is fixedly disposed at the second connecting hole; the first lead screw passes through the first bearing and the first nut, and at least part of the top end of the first lead screw is located outside the receiving cavity; the first knob is connected to the top end of the first lead screw.

[0007] Furthermore, it also includes a cooling fan; the top of the base is provided with a mounting port, the cooling fan is disposed in the mounting port and is positioned towards the heat sink.

[0008] Furthermore, a heat dissipation block is provided at the top of the heat dissipation plate.

[0009] Furthermore, the first adjustment assembly also includes a first slide rod and a third bearing; the heat sink is provided with a third connecting hole that runs vertically through the side away from the first nut, and the third bearing is disposed at the third connecting hole; the top end of the first slide rod is connected to the top wall of the receiving cavity; the first slide rod passes through the third bearing.

[0010] Furthermore, a first through groove is provided on the side end of the seat, and the first through groove extends vertically; a first protrusion is provided on the side end of the heat sink, and the first protrusion is movable up and down through the first through groove, and the first protrusion is at least partially located outside the receiving cavity.

[0011] Furthermore, the second adjustment component includes a connector, a second lead screw, a second nut, a second bearing, and a second knob; the connector is disposed within the receiving cavity and connected to the focusing rod; a fourth connecting hole is provided at the top of the base, and a fifth connecting hole is provided on the connector, the fourth connecting hole and the fifth connecting hole being vertically connected and opposite to each other; the second bearing is fixedly disposed at the fourth connecting hole, and the second nut is fixedly disposed at the fifth connecting hole; the second lead screw passes through the second bearing and the second nut, and at least part of the top end of the second lead screw is located outside the receiving cavity; the second knob is connected to the top end of the second lead screw.

[0012] Furthermore, the second adjustment assembly also includes a second slide rod and a fourth bearing; the connecting member includes a first clamping block and a second clamping block; the first clamping block and the second clamping block are arranged opposite to each other and are respectively connected to the opposite two ends of the focusing rod; the fifth connecting hole is provided on the first clamping block, and the second clamping block is provided with a sixth connecting hole; the fourth bearing is provided at the sixth connecting hole, and the top end of the second slide rod is connected to the top wall of the receiving cavity; the second slide rod passes through the fourth bearing.

[0013] Furthermore, a second through groove is provided on the side end of the seat, and the second through groove extends vertically; a second protrusion is provided on the side end of the first clamping block, and the second protrusion is movable up and down through the second through groove, and the second protrusion is at least partially located outside the receiving cavity.

[0014] Furthermore, the connector also includes two elastic pads; the two elastic pads are respectively disposed between the focusing rod and the first clamping block and the second clamping block.

[0015] Compared with the prior art, this utility model has the following advantages: the light-emitting element is located above the focusing rod, so that the light emitted by the light-emitting element needs to pass through the focusing rod and then be emitted outward from the light outlet; the first adjustment component is connected to the light-emitting element and can drive the light-emitting element to move up and down, so as to adjust the position of the light-emitting element relative to the object to be detected, control the distance and brightness of the light emitted by the light-emitting element, control the light convergence angle, and adjust the position of the light-emitting element relative to the focusing rod, so as to control the thickness of the generated linear light spot; the second adjustment component is connected to the focusing rod and can drive the focusing rod to move up and down, so as to adjust the position of the focusing rod relative to the light-emitting element, control the working distance of the focusing rod and the thickness of the generated linear light spot; the adjustable linear light source can independently adjust the position of the light-emitting element and the focusing rod in the base through the first adjustment component and the second adjustment component, which has good adaptability. Attached Figure Description

[0016] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the linear light source with adjustable light spot of this utility model;

[0018] Figure 2 for Figure 1A schematic diagram of the structure of the linear light source with adjustable light spot of this utility model from another perspective;

[0019] Figure 3 This is a cross-sectional view of the linear light source with adjustable light spot of this utility model;

[0020] Figure 4 Another cross-sectional view of the linear light source with adjustable light spot of this utility model;

[0021] Figure 5 This is another cross-sectional view of the linear light source with adjustable light spot of this utility model.

[0022] Reference numerals: Light-emitting component 100; base 110; receiving cavity 111; light outlet 112; first through slot 114; second through slot 116; light-emitting element 120; focusing rod 130; diffuser plate 140; first adjustment component 200; heat sink 210; heat sink block 212; first protrusion 214; first through hole 215; second through hole 216; first lead screw 220; first nut 230; first bearing 240; first knob 250; first slide rod 260; third bearing 270; second adjustment component 300; first clamping block 311; second clamping block 312; second protrusion 315; second lead screw 320; second nut 330; second bearing 340; second knob 350; second slide rod 360; fourth bearing 370; cooling fan 400. Detailed Implementation

[0023] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0026] Please see Figures 1 to 5This utility model provides a linear light source with adjustable light spot. The linear light source with adjustable light spot includes a light-emitting component 100, a first adjustment component 200, and a second adjustment component 300. The light-emitting component 100 includes a base 110, a light-emitting element 120, and a focusing rod 130. The base 110 is provided with a receiving cavity 111 and a light-emitting port 112. The light-emitting port 112 is located at the bottom end of the base 110 and communicates with the receiving cavity 111. The light-emitting element 120 and the focusing rod 130 are both located in the receiving cavity 111 and are both located above the light-emitting port 112. The light-emitting element 120 is located above the focusing rod 130. The first adjustment component 200 is connected to the light-emitting element 120 and can drive the light-emitting element 120 to move up and down. The second adjustment component 300 is connected to the focusing rod 130 and can drive the focusing rod 130 to move up and down.

[0027] The light-emitting element 120 is located above the focusing rod 130, so that the light emitted by the light-emitting element 120 needs to pass through the focusing rod 130 and then be emitted outward from the light outlet 112. The first adjustment component 200 is connected to the light-emitting element 120 and can drive the light-emitting element 120 to move up and down, so as to adjust the position of the light-emitting element 120 relative to the object to be detected, control the distance and brightness of the light emitted by the light-emitting element 120, control the light convergence angle, and adjust the position of the light-emitting element 120 relative to the focusing rod 130. The first adjustment component 200 is connected to the focusing rod 130 and can drive the focusing rod 130 to move up and down, so as to adjust the position of the focusing rod 130 relative to the light-emitting element 120, control the working distance of the focusing rod 130 and the thickness of the generated linear light spot; the adjustable linear light source can independently adjust the position of the light-emitting element 120 and the focusing rod 130 in the base 110 through the first adjustment component 200 and the second adjustment component 300, and has good adaptability.

[0028] Specifically, a diffuser plate 140 is provided at the light outlet 112 to diffuse the light.

[0029] Reference Figure 1 and Figure 3In some embodiments of this utility model, the first adjustment component 200 includes a heat sink 210, a first lead screw 220, a first nut 230, a first bearing 240, and a first knob 250; the heat sink 210 is movably disposed within the receiving cavity 111; the light-emitting element 120 is disposed at the bottom end of the heat sink 210; the top end of the base 110 is provided with a first connecting hole, and the heat sink 210 is provided with a second connecting hole, both the first connecting hole and the second connecting hole being vertically connected and opposite to each other; the first bearing 240 is fixedly disposed at the first connecting hole, and the first nut 230 is fixedly disposed at the second connecting hole; the first lead screw 220 passes through the first bearing 240 and the first nut 230, and the top end of the first lead screw 220 is at least partially located outside the receiving cavity 111; the first knob 250 is connected to the top end of the first lead screw 220.

[0030] The rotation of the first lead screw is limited by the first bearing 240. The first lead screw can be rotated by rotating the first knob 250. The first nut 230 is fixedly installed at the second connecting hole, so that the first nut 230 and the heat sink 210 can move up and down along the length of the first lead screw 220 to adjust the position of the heat sink 210 in the receiving cavity 111. The first knob 250 is located outside the receiving cavity 111, so that the user can easily turn the second knob 350.

[0031] Specifically, the two ends of the heat sink 210 abut against the opposite side walls of the receiving cavity 111 to prevent the heat sink 210 from rotating inside the receiving cavity 111.

[0032] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments of this utility model, a cooling fan 400 is also included; the top of the base 110 is provided with an installation port, the cooling fan 400 is disposed in the installation port and is positioned towards the heat sink 210.

[0033] By setting up a cooling fan 400, air can be blown onto the heat sink 210 to reduce its temperature.

[0034] Specifically, the cooling fan 400 is located above the heat sink 210. The first adjustment component 200 drives the light-emitting element 120 to move up and down, thereby controlling the distance between the heat sink 210 and the cooling fan 400 and thus controlling the heat dissipation effect. Among them, by driving the light-emitting element 120 to move upward by the first adjustment component 200, the distance between the heat sink 210 and the cooling fan 400 can be reduced, thereby improving the heat dissipation effect.

[0035] Reference Figures 3 to 5 In some embodiments of this utility model, a heat sink 212 is provided at the top of the heat sink 210.

[0036] By setting up heat sink 212, the contact area with air can be increased, thereby improving the heat dissipation effect of heat sink 210.

[0037] Specifically, multiple heat sinks 212 are provided and arranged sequentially at intervals along the same direction.

[0038] Reference Figure 4 In some embodiments of this utility model, the first adjustment component 200 further includes a first slide rod 260 and a third bearing 270; a third connecting hole is provided on the side of the heat sink 210 away from the first nut 230, which is vertically through, and the third bearing 270 is disposed at the third connecting hole; the top end of the first slide rod 260 is connected to the top wall of the receiving cavity 111; the first slide rod 260 passes through the third bearing 270.

[0039] The top two sides of the heat sink 210 are respectively provided with a second connecting hole and a third connecting hole. The first nut 230 is provided at the second connecting hole, the third bearing 270 is provided at the third connecting hole, the first lead screw 220 passes through the first nut 230, and the first slide rod 260 passes through the third bearing 270, which makes the heat sink 210 more stable in moving up and down and reduces the degree of tilting of the heat sink 210 and the light-emitting element 120.

[0040] Reference Figure 1 and Figure 2 In some embodiments of this utility model, the side end of the seat 110 is provided with a first through groove 114, which extends vertically; the side end of the heat sink 210 is provided with a first protrusion 214, which is movable up and down through the first through groove 114, and the first protrusion 214 is at least partially located outside the receiving cavity 111.

[0041] By setting the first protrusion 214, users can easily observe the position of the heat sink 210 in the receiving cavity 111, reducing the difficulty of operation.

[0042] Specifically, a first scale groove is provided on the outer side wall of the base 110. The first scale groove is located on one side of the first through groove 114. Multiple first scale grooves are provided and are spaced apart along the length direction of the first through groove 114.

[0043] Reference Figure 1 , Figure 3 and Figure 5In some embodiments of this utility model, the second adjustment component 300 includes a connector, a second lead screw 320, a second nut 330, a second bearing 340, and a second knob 350; the connector is disposed in the receiving cavity 111 and connected to the focusing rod 130; a fourth connecting hole is provided at the top of the base 110, and a fifth connecting hole is provided on the connector, the fourth connecting hole and the fifth connecting hole are both vertically connected and opposite to each other; the second bearing 340 is fixedly disposed at the fourth connecting hole, and the second nut 330 is fixedly disposed at the fifth connecting hole; the second lead screw 320 passes through the second bearing 340 and the second nut 330, and the top end of the second lead screw 320 is at least partially located outside the receiving cavity 111; the second knob 350 is connected to the top end of the second lead screw 320.

[0044] The second bearing 340 limits the rotation of the second lead screw. Rotating the second knob 350 allows the second lead screw to rotate. The second nut 330 is fixedly installed at the fifth connecting hole, allowing the second nut 330 and the connecting piece to move up and down along the length of the first lead screw 220 to adjust the position of the focusing rod 130 in the receiving cavity 111. The second knob 350 is located outside the receiving cavity 111, making it convenient for users to turn the second knob 350.

[0045] Specifically, the two ends of the connector abut against the opposite side walls of the receiving cavity 111 to prevent the connector from rotating within the receiving cavity 111.

[0046] Reference Figure 4 and Figure 5 In some embodiments of this utility model, the second adjustment component 300 further includes a second slide rod 360 and a fourth bearing 370; the connecting member includes a first clamping block 311 and a second clamping block 312; the first clamping block 311 and the second clamping block 312 are arranged opposite to each other and are respectively connected to the opposite two ends of the focusing rod 130; a fifth connecting hole is provided on the first clamping block 311, and a sixth connecting hole is provided on the second clamping block 312; the fourth bearing 370 is provided at the sixth connecting hole, and the top end of the second slide rod 360 is connected to the top wall of the receiving cavity 111; the second slide rod 360 passes through the fourth bearing 370.

[0047] The first clamping block 311 and the second clamping block 312 together clamp the focusing rod 130 to limit the position of the focusing rod 130. Specifically, the first clamping block 311 and the second clamping block 312 are provided with clamping grooves on their side end faces facing the focusing rod 130, and the two ends of the focusing rod 130 are respectively located in the clamping grooves of the first clamping block 311 and the second clamping block 312.

[0048] The first clamping block 311 and the second clamping block 312 are respectively provided with a fifth connecting hole and a sixth connecting hole. The second nut 330 is provided at the fifth connecting hole, and the fourth bearing 370 is provided at the sixth connecting hole. The second lead screw 320 passes through the second nut 330, and the second slide rod 360 passes through the fourth bearing 370. This makes the stability of the focusing rod 130, the first clamping block 311 and the second clamping block 312 moving up and down together relatively high, and reduces the degree of tilting of the focusing rod 130.

[0049] Specifically, a first through hole 215 and a second through hole 216 are provided on the heat sink 210, a second lead screw 320 passes through the second lead screw 320, and a second slide rod 360 passes through the second through hole 216.

[0050] Reference Figure 1 and Figure 2 In some embodiments of this utility model, a second through groove 116 is provided on the side end of the seat 110, and the second through groove 116 extends in the vertical direction; a second protrusion 315 is provided on the side end of the first clamping block 311, and the second protrusion 315 is movably inserted through the second through groove 116, and the second protrusion 315 is at least partially located outside the receiving cavity 111.

[0051] By setting the second protrusion 315, the user can easily observe the position of the first clamping block 311 in the receiving cavity 111, so as to facilitate the user to judge the position of the focusing rod 130 in the receiving cavity 111 and reduce the difficulty of operation.

[0052] Specifically, a second scale groove is provided on the outer wall of the base 110. The second scale groove is located on one side of the second through groove 116. Multiple second scale grooves are provided and are spaced apart along the length direction of the second through groove 116.

[0053] In some embodiments of this utility model, the connector further includes an elastic pad, and two elastic pads are provided; the two elastic pads are respectively disposed between the focusing rod 130 and the first clamping block 311 and the second clamping block 312.

[0054] By setting an elastic pad, the damage to the focusing rod 130 caused by the clamping of the first clamping block 311 and the second clamping block 312 can be reduced; specifically, the elastic pad is in a compressed state.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A linear light source with adjustable light spot, characterized in that, include: A light-emitting component includes a base, a light-emitting element, and a light-concentrating rod; the base is provided with a receiving cavity and a light-emitting port; the light-emitting port is located at the bottom end of the base and communicates with the receiving cavity; the light-emitting element and the light-concentrating rod are both located inside the receiving cavity and are both located above the light-emitting port; the light-emitting element is located above the light-concentrating rod. The first adjustment component is connected to the light-emitting element and is capable of driving the light-emitting element to move up and down; The second adjustment component is connected to the focusing rod and can drive the focusing rod to move up and down.

2. The linear light source with adjustable light spot according to claim 1, characterized in that, The first adjustment assembly includes a heat sink, a first lead screw, a first nut, a first bearing, and a first knob; the heat sink is movably disposed within the receiving cavity; the light-emitting element is disposed at the bottom end of the heat sink; a first connecting hole is provided at the top end of the base, and a second connecting hole is provided on the heat sink, the first connecting hole and the second connecting hole being vertically connected and opposite to each other; the first bearing is fixedly disposed at the first connecting hole, and the first nut is fixedly disposed at the second connecting hole; the first lead screw passes through the first bearing and the first nut, and at least part of the top end of the first lead screw is located outside the receiving cavity; the first knob is connected to the top end of the first lead screw.

3. The linear light source with adjustable light spot according to claim 2, characterized in that, It also includes a cooling fan; the top of the base is provided with a mounting port, the cooling fan is disposed in the mounting port and is positioned towards the heat sink.

4. The linear light source with adjustable light spot according to claim 2, characterized in that, A heat dissipation block is provided at the top of the heat sink.

5. The linear light source with adjustable light spot according to claim 2, characterized in that, The first adjustment assembly further includes a first slide rod and a third bearing; the heat sink is provided with a third connecting hole that runs vertically through the side away from the first nut, and the third bearing is disposed at the third connecting hole; the top end of the first slide rod is connected to the top wall of the receiving cavity; the first slide rod passes through the third bearing.

6. The linear light source with adjustable light spot according to claim 2, characterized in that, The side end of the base is provided with a first through groove, which extends vertically; the side end of the heat sink is provided with a first protrusion, which is movable up and down through the first through groove, and the first protrusion is at least partially located outside the receiving cavity.

7. The linear light source with adjustable light spot according to claim 1, characterized in that, The second adjustment assembly includes a connector, a second lead screw, a second nut, a second bearing, and a second knob. The connector is disposed within the receiving cavity and connected to the focusing rod. A fourth connecting hole is provided at the top of the base, and a fifth connecting hole is provided on the connector. The fourth and fifth connecting holes are both vertically connected and opposite to each other. The second bearing is fixedly disposed at the fourth connecting hole, and the second nut is fixedly disposed at the fifth connecting hole. The second lead screw passes through the second bearing and the second nut, and at least part of the top end of the second lead screw is located outside the receiving cavity. The second knob is connected to the top end of the second lead screw.

8. The linear light source with adjustable light spot according to claim 7, characterized in that, The second adjustment assembly further includes a second slide rod and a fourth bearing; the connecting member includes a first clamping block and a second clamping block; the first clamping block and the second clamping block are arranged opposite to each other and are respectively connected to the opposite two ends of the focusing rod; the fifth connecting hole is provided on the first clamping block, and the second clamping block is provided with a sixth connecting hole; the fourth bearing is provided at the sixth connecting hole, and the top end of the second slide rod is connected to the top wall of the receiving cavity; the second slide rod passes through the fourth bearing.

9. The linear light source with adjustable light spot according to claim 8, characterized in that, The side end of the seat is provided with a second through groove, which extends vertically; the side end of the first clamping block is provided with a second protrusion, which is movable up and down through the second through groove, and the second protrusion is at least partially located outside the receiving cavity.

10. The linear light source with adjustable light spot according to claim 8, characterized in that, The connector also includes two elastic pads; the two elastic pads are respectively disposed between the focusing rod and the first clamping block and the second clamping block.

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