A light source adjustment device and equipment

Abstract

This application relates to the field of light source technology, specifically to a light source adjustment device and apparatus that can, to a certain extent, solve the problem of low focal center alignment accuracy between the lamp bead and the lens. The light source adjustment apparatus includes a light source adjustment device, a fixing device, and a lens; the light source adjustment device includes a light source mechanism, a first sliding mechanism, and a second sliding mechanism, wherein the light source mechanism is disposed at one end of the first sliding mechanism, and the other end of the first sliding mechanism is further disposed within the second sliding mechanism, and the first sliding mechanism is movable along a first direction; then, by moving the second sliding mechanism along a second direction; and by ensuring that the first and second directions are perpendicular, the light source mechanism can be moved to any position in the plane formed by the first and second directions, and the position of the light source mechanism is stable, thereby improving the accuracy of the alignment between the light source mechanism and the lens focal point.

Description

Technical Field

[0001] This application relates to the field of light source technology, and more specifically, to a light source adjustment device and apparatus. Background Technology

[0002] With the rapid development of industrial automation, machine vision has become a popular industry, widely used in printing, circuit board manufacturing, display screen manufacturing, mobile phone manufacturing, medical applications, and other sectors. Machine vision systems include light sources, among which parallel coaxial light sources are widely used due to their high brightness, good uniformity, and high parallelism.

[0003] In some machine vision system applications, taking parallel coaxial light sources as an example, the uniformity and parallelism of parallel coaxial light sources are determined by the alignment accuracy of the focal centers of the lamp beads and lenses of the parallel coaxial light sources.

[0004] However, there is a gap between the light source circuit where the LEDs are located and the base in the parallel coaxial light source, which results in low accuracy of the alignment between the LEDs and the focal center of the lens in the parallel coaxial light source. Summary of the Invention

[0005] To address the issue of low alignment accuracy between the focal center of the LED and the lens, this application provides a light source adjustment device and apparatus.

[0006] The embodiments of this application are implemented as follows:

[0007] A first aspect of this application provides a light source adjustment device, including a light source mechanism, a first sliding mechanism, and a second sliding mechanism;

[0008] The light source mechanism is located on one end of the first sliding mechanism;

[0009] The other end of the first sliding mechanism is disposed inside the second sliding mechanism, and the first sliding mechanism can move along the first direction;

[0010] The second sliding mechanism moves along the second direction;

[0011] The first direction is perpendicular to the second direction.

[0012] In conjunction with the first aspect, one possible implementation also includes a base;

[0013] One end of the second sliding mechanism is disposed inside the base, and the second sliding mechanism can move between the first surface of the base and the second surface of the base;

[0014] The first surface and the second surface are arranged opposite each other, the first surface and the second surface are arranged in the second direction, and the distance between the first surface and the second surface is greater than the length of the second sliding mechanism in the second direction.

[0015] In conjunction with the first aspect, in one possible implementation, the other end of the first sliding mechanism has a protrusion, and the other end of the second sliding mechanism has an embedded portion;

[0016] The protrusion of the first sliding mechanism is disposed within the embedded part of the second sliding mechanism;

[0017] The length of the protrusion is less than the length of the embedded part, and the direction in which the length of the embedded part is located is the first direction.

[0018] In conjunction with the first aspect, in one possible implementation, the first sliding mechanism includes a first adjusting component;

[0019] The first adjustment component is used to adjust the position of the first sliding mechanism in the first direction.

[0020] In conjunction with the first aspect, in one possible implementation, the first adjusting component includes a first adjusting through hole, a first adjusting screw, and a first locking spring, wherein the first adjusting through hole includes a first fixing part and a first threaded part;

[0021] The first locking spring is sleeved on the side of the first adjusting screw near the screw head, and the first locking spring is located between one end of the first fixing part and the screw head of the first adjusting screw, wherein one end of the first fixing part is connected to the first threaded part;

[0022] The side of the first adjusting screw furthest from the screw head is movably connected to the first sliding mechanism via the first threaded portion.

[0023] In conjunction with the first aspect, in one possible implementation, the base has a first through hole for inserting a first adjusting screw.

[0024] In conjunction with the first aspect, in one possible implementation, the second sliding mechanism includes a second adjusting component;

[0025] The second adjustment component is used to adjust the position of the second sliding mechanism in the second direction.

[0026] In conjunction with the first aspect, in one possible implementation, the second adjustment assembly includes a second adjustment through hole, a second adjustment screw, and a second locking spring, wherein the second adjustment through hole includes a second fixing part and a second threaded part;

[0027] The second locking spring is sleeved on the side of the second adjusting screw near the screw head, and is located between one end of the second locking spring located at the second fixing part and the screw head of the second adjusting screw, wherein one end of the second fixing part is connected to the second threaded part;

[0028] The side of the second adjusting screw furthest from the screw head is movably connected to the second sliding mechanism via the second threaded portion.

[0029] In conjunction with the first aspect, in one possible implementation, the base has a second through hole for inserting a second adjusting screw.

[0030] A second aspect of this application provides a light source adjustment device, including a lens, a fixing device, and the light source adjustment device of the first aspect;

[0031] The fixing device is used to fix the light source adjustment device and the lens.

[0032] The beneficial effects of this application are as follows: The light source adjustment device includes a light source mechanism, a first sliding mechanism, and a second sliding mechanism. The light source mechanism is disposed at one end of the first sliding mechanism, and the other end of the first sliding mechanism is disposed within the second sliding mechanism. The first sliding mechanism can move along a first direction. By moving the second sliding mechanism along a second direction, and by making the first direction perpendicular to the second direction, the light source mechanism can be moved to any position in the plane formed by the first and second directions, and the position of the light source mechanism is stable, thereby improving the accuracy of the alignment between the light source mechanism and the lens focal point. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A vision system with parallel coaxial light sources is shown;

[0035] Figure 2a This illustration shows an overall structural diagram of a light source adjustment device according to an embodiment of this application;

[0036] Figure 2b An exploded view of the structure of a light source adjustment device according to an embodiment of this application is shown;

[0037] Figure 2c The image shown is a top view of a light source adjustment device according to an embodiment of this application;

[0038] Figure 3a This paper shows a schematic diagram of the structure of the first adjustment component in a light source adjustment device according to an embodiment of this application;

[0039] Figure 3b A schematic diagram of the structure of the first adjustment through hole in a light source adjustment device according to an embodiment of this application is shown;

[0040] Figure 4This paper shows a schematic diagram of the structure of the first adjustment component in a light source adjustment device according to an embodiment of this application;

[0041] Figure 5 This invention provides a schematic diagram of the overall structure of another light source adjustment device according to an embodiment of the present application.

[0042] Figure 6a A schematic diagram of a first cross-section of the structure of a light source adjustment device according to an embodiment of this application is shown;

[0043] Figure 6b A schematic diagram of a second cross-section of the structure of a light source adjustment device according to an embodiment of this application is shown;

[0044] Wherein, 10-camera; 20-light source; 21-LED lamp bead; 22-printed circuit board; 30-French lens; 40-beam splitter; 50-object under test; 100-light source adjustment device; 110-light source mechanism; 120-first sliding mechanism; 121-first adjustment component; 121a-first locking spring; 121b-first adjusting screw; 122-first adjusting through hole; 122a-first threaded part; 122b-first fixing part; 130 - Second sliding mechanism; 131 - Second adjusting assembly; 131a - Second locking spring; 131b - Second adjusting screw; 140 - Base; 141 - First through hole; 141a - First ring; 150 - Top plate; 200 - Light source adjusting device; 210 - Base plate assembly; 220 - Side plate assembly; 221 - First side plate; 221a - First positioning groove; 222 - Second side plate; 222a - Second positioning groove; 230 - Lens. Detailed Implementation

[0045] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0046] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0047] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0048] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0049] The light source is a crucial component of a machine vision system. Depending on the content being detected, different optical imaging schemes are used, and therefore, different light sources are employed. Among them, parallel coaxial light sources are widely used in the field of machine vision due to their high brightness, good uniformity, and high parallelism.

[0050] Figure 1 A vision system with parallel coaxial light sources is shown, such as... Figure 1 As shown, the vision system includes a light source 20, a camera 10, a Fresnel lens 30, a beam splitter 40, and an object under test 50. The light source 20 includes LED beads 21 and a printed circuit board (PCB) 22. In this structure, the uniformity and parallelism of the parallel coaxial light source depend on the alignment accuracy of the LED beads with the focal center of the Fresnel lens. Since the LED beads 21 are mounted on the PCB 22, the performance of the light source 20 is affected by the accuracy of the mounting of the LED beads 21 on the PCB 22.

[0051] To ensure the assemblability of structures such as the light source 20, Fresnel lens 30, and beam splitter 40, gaps exist between the mounting slots of the light source 20 and between the mounting slots of the Fresnel lens 30 and the Fresnel lens 30. The superposition of these gaps will cause the center of the LED bead 21 to be misaligned with the center of the Fresnel lens 30 during actual testing, resulting in a decrease in the uniformity and parallelism of the parallel coaxial light source, and low accuracy in aligning the focal center of the LED bead 21 and the lens.

[0052] To reduce the gaps between mounting slots and optical components and improve the alignment accuracy of the focal center of the LED beads and lens, this application provides a light source adjustment device and apparatus. The light source adjustment apparatus includes a light source adjustment mechanism, a fixing device, and a lens; the light source adjustment mechanism includes a light source mechanism, a first sliding mechanism, and a second sliding mechanism; the light source mechanism is disposed at one end of the first sliding mechanism, and the other end of the first sliding mechanism is further disposed within the second sliding mechanism, and the first sliding mechanism is movable along a first direction; then, by moving the second sliding mechanism along a second direction; and by ensuring that the first direction is perpendicular to the second direction, the light source mechanism can be moved to any position in the plane formed by the first and second directions, and the position of the light source mechanism is stable, thereby improving the alignment accuracy between the light source mechanism and the lens focal center.

[0053] The light source adjustment device and equipment of the present application will be described in detail below with reference to the accompanying drawings.

[0054] Figure 2a This illustration shows an overall structural diagram of a light source adjustment device according to an embodiment of this application. Figure 2b An exploded view of the structure of a light source adjustment device according to an embodiment of this application is shown, as follows: Figure 2a and Figure 2b As shown, this application embodiment provides a light source adjustment device 100.

[0055] The light source adjustment device 100 includes a light source mechanism 110, a first sliding mechanism 120, and a second sliding mechanism 130.

[0056] The light source mechanism 110 is disposed on one end of the first sliding mechanism 120; the other end of the first sliding mechanism 120 is disposed inside the second sliding mechanism 130, and the first sliding mechanism 120 can move along the first direction; the second sliding mechanism 130 moves along the second direction.

[0057] Furthermore, the first direction is perpendicular to the second direction. By making the first direction perpendicular to the second direction, the light source mechanism 110 can be moved to any position in the plane formed by the first and second directions.

[0058] In some embodiments, the light source mechanism 110 is detachably mounted on the first sliding mechanism 120 and can be fixed by screws or by a snap-fit ​​structure. This application embodiment does not limit the specific method used.

[0059] The light source mechanism 110 may include LED chips and a base plate. The number of LED chips is not limited in this embodiment of the application, and the base plate may be a PCB.

[0060] Among them, the lamp beads can be LED lamp beads.

[0061] In some embodiments, the light source adjustment device 100 further includes a base 140.

[0062] One end of the second sliding mechanism 130 is disposed inside the base 140, and the second sliding mechanism 130 can move between the opposite first surface and the second surface inside the base 140; since the arrangement direction of the first surface and the second surface is the second direction, the second sliding mechanism 130 moves along the second direction.

[0063] The distance between the first and second surfaces within the base 140 is greater than the length of the second sliding mechanism 130 in the second direction, thus enabling the second sliding mechanism 130 to move back and forth between the first and second surfaces within the base 140 along the second direction.

[0064] like Figure 2bAs shown, the other end of the first sliding mechanism 120 has a protrusion, and the other end of the second sliding mechanism 130 has an embedded portion; the protrusion of the first sliding mechanism 120 is disposed within the embedded portion of the second sliding mechanism 130.

[0065] When the second sliding mechanism 130 moves in the second direction, it will cause the first sliding mechanism 120 to move in the second direction as well.

[0066] Wherein, the length of the protrusion of the first sliding mechanism 120 is less than the length of the embedded part of the second sliding mechanism 130, and the direction of the length of the embedded part of the second sliding mechanism 130 is the first direction. Therefore, the first sliding mechanism 120 can move back and forth along the first direction in the length direction of the embedded part of the second sliding mechanism 130.

[0067] The other end of the first sliding mechanism 120 is disposed within the second sliding mechanism 130, and can be used as follows: Figure 2b As shown, this is achieved by placing the protrusion of the first sliding mechanism 120 within the embedded portion of the second sliding mechanism 130.

[0068] In some embodiments, the other end of the first sliding mechanism can be entirely disposed within the second sliding mechanism, or the other end of the first sliding mechanism can be entirely disposed within the embedded portion of the second sliding mechanism. This application does not limit the specific embodiments in this regard.

[0069] like Figure 2b As shown, the first sliding mechanism 120 includes a first adjusting component 121, which is used to adjust the position of the first sliding mechanism 120 in a first direction; the second sliding mechanism 130 includes a second adjusting component 131, which is used to adjust the position of the second sliding mechanism 130 in a second direction.

[0070] When only the first adjustment component 121 is adjusted, the position of the first sliding mechanism 120 in the first direction can be adjusted, that is, the position of the light source mechanism 110 in the first direction can be adjusted.

[0071] When only the second adjustment component 131 is adjusted, the positions of the second sliding mechanism 130 and the first sliding mechanism 120 in the second direction can be adjusted, that is, the position of the light source mechanism 110 in the second direction can be adjusted. Although the second adjustment component 131 only acts on the second sliding mechanism 130, the other end of the first sliding mechanism 120 is located inside the second sliding mechanism 130. Therefore, when the second sliding mechanism 130 moves back and forth in the second direction, the first sliding mechanism 120 also moves with the second sliding mechanism 130.

[0072] When the first adjustment component 121 and the second adjustment component 131 are adjusted, the positions of the second sliding mechanism 130 and the first sliding mechanism 120 in the second direction in the light source adjustment device 100 can be adjusted, and the position of the first sliding mechanism 120 in the first direction can be adjusted, that is, the position of the light source mechanism 110 in the first and second directions can be adjusted.

[0073] It should be understood that when adjusting the first adjustment component 121 and the second adjustment component 131, the first adjustment component 121 and the second adjustment component 131 can be adjusted simultaneously, or the first adjustment component 121 can be adjusted first and then the second adjustment component 131 can be adjusted; or the second adjustment component 131 can be adjusted first and then the first adjustment component 121 can be adjusted. The embodiments of this application do not limit the order of adjusting the first direction and the second direction.

[0074] In other words, the first adjustment component 121 and the second adjustment component 131 are independent of each other, do not interfere with each other, and can cooperate with each other.

[0075] Figure 2c The diagram shows a top view of a light source adjustment device according to an embodiment of this application; as shown Figure 2c As shown, the first sliding mechanism 120 and the second sliding mechanism 130 are both disposed within the base 140.

[0076] Figure 3a A schematic diagram of the structure of the first adjustment component in a light source adjustment device according to an embodiment of this application is shown, and Figure 3a for Figure 2c Cross-sectional view at point MM. (See diagram below.) Figure 3a As shown, the first adjustment component 121 includes a first adjustment through hole 122, a first adjustment screw 121b, and a first locking spring 121a.

[0077] in, Figure 3b A schematic diagram of the structure of the first adjustment through hole 122 in the light source adjustment device 100 according to an embodiment of this application is shown, as follows: Figure 3b As shown, the first adjustment through hole 122 includes a first fixing part 122b and a first threaded part 122a. The first fixing part 122b and the first threaded part 122a are connected and disposed in communication, and the cross-sectional area of ​​the first fixing part 122b is larger than the cross-sectional area of ​​the first threaded part 122a.

[0078] It should be understood that because the cross-sectional area of ​​the first fixing part 122b is larger than the cross-sectional area of ​​the first threaded part 122a, the communication position between the first fixing part 122b and the first threaded part 122a has a first step, which is used to limit one end of the first locking spring 121a.

[0079] The first locking spring 121a is sleeved on the side of the first adjusting screw 121b near the screw head, and the first locking spring 121a is located between one end of the first fixing part 122b and the screw head of the first adjusting screw 121b, wherein one end of the first fixing part 122b is connected to the first threaded part 122a.

[0080] In some embodiments, the base 140 has a first through hole 141 for inserting a first adjusting screw 121b. The first through hole 141 has a protruding first ring 141a, the cross-sectional area of ​​which is smaller than that of the first through hole 141. The first ring 141a prevents the screw head of the first adjusting screw 121b from passing through the first through hole 141, thereby improving the stability of the moving position of the first sliding mechanism 120.

[0081] In some embodiments, the position of the first ring 141a can be located at the middle of the first through hole 141, or at the middle of the first through hole 141 near the base housing, or at the middle of the first through hole 141 near the base inner housing; it is sufficient to ensure that the positions of the first through holes 141 are reserved on both sides of the first ring 141a; the side of the first ring 141a near the base inner housing can restrict the other end of the first locking spring 121a, and the side of the first ring 141a near the base housing can restrict the screw head of the first adjusting screw 121b.

[0082] The first adjusting screw 121b has a thread on the side away from the screw head, and is movably connected to the first sliding mechanism 120 through the first threaded portion 122a of the first adjusting through hole 122. That is, the first locking spring 121a can be extended or shortened through the first threaded portion 122a, thereby realizing the reciprocating movement of the first sliding mechanism 120 in the first direction.

[0083] Figure 4 This invention provides a schematic diagram of the structure of the first adjustment component in a light source adjustment device according to an embodiment of the present application. Figure 4 for Figure 2c Cross-sectional view at point NN, as shown Figure 4 As shown, the second adjustment component 131 includes a second adjustment through hole, a second adjustment screw 131b, and a second locking spring 131a.

[0084] The second adjusting through hole includes a second fixing part and a second threaded part; the second fixing part and the second threaded part are connected and disposed in communication, and the cross-sectional area of ​​the second fixing part is greater than the cross-sectional area of ​​the second threaded part.

[0085] It should be understood that because the cross-sectional area of ​​the second fixing part is larger than the cross-sectional area of ​​the second threaded part, the communication position between the second fixing part and the second threaded part has a second step, which is used to limit one end of the second locking spring 131a.

[0086] The second locking spring 131a is sleeved on the side of the second adjusting screw 131b near the screw head, and the second locking spring 131a is located between one end of the second fixing part and the screw head of the second adjusting screw 131b, wherein one end of the second fixing part is connected to the second threaded part.

[0087] In some embodiments, the base 140 has a second through hole for inserting a second adjusting screw 131b. The second through hole has a raised second ring, the cross-sectional area of ​​which is smaller than that of the second through hole. The second ring prevents the screw head of the second adjusting screw 131b from passing through the second through hole, thereby improving the stability of the moving position of the second sliding mechanism 130.

[0088] In some embodiments, the second ring can be located in the middle of the second through hole, or in the middle of the second through hole near the base housing, or in the middle of the second through hole near the base inner housing; it is sufficient to ensure that the positions of the second through holes are reserved on both sides of the second ring; the side of the second ring near the base inner housing can restrict the other end of the second locking spring, and the side of the second ring near the base housing can restrict the screw head of the second adjusting screw 131b.

[0089] The second adjusting screw 131b has a thread on the side away from the screw head, and is movably connected to the second sliding mechanism 130 through the second threaded part of the second adjusting through hole. That is, the second locking spring 131a can be extended or shortened through the second threaded part, thereby realizing the reciprocating movement of the second sliding mechanism 130 in the second direction.

[0090] Figure 5 This application provides a schematic diagram of the overall structure of another light source adjustment device according to an embodiment of the present application. Figure 5 As shown, this application provides yet another light source adjustment device.

[0091] The light source adjustment device 100 includes a top plate 150, a light source mechanism 110, a first sliding mechanism 120, a second sliding mechanism 130, and a base 140.

[0092] The top plate 150 is disposed at the top of the base 140 and is detachably connected to the base 140. It can be fixed by screws or by a snap-fit ​​structure. This application embodiment does not limit the specific method.

[0093] The top plate 150 has a light-transmitting hole. The size of the light-transmitting hole needs to ensure that the light beam of the light source mechanism 110 is emitted without obstruction as the first sliding mechanism 120 and the second sliding mechanism 130 move. The shape of the light-transmitting hole is not limited in this embodiment. For example, the light-transmitting hole can be circular or square.

[0094] In some embodiments, the light-transmitting aperture can be a light-transmitting window, which does not affect the light beam emitted by the light source mechanism 110.

[0095] The light source mechanism 110, the first sliding mechanism 120 and the second sliding mechanism 130 are disposed in the cavity formed by the top plate 150 and the base 140, and the stability of the light source mechanism 110 is maintained by the accurate setting of the structure.

[0096] The structural relationships between the light source mechanism 110, the first sliding mechanism 120, the second sliding mechanism 130, and the base 140, as well as the specific structures of the first sliding mechanism 120 and the second sliding mechanism 130, are as described above. Figures 2a to 5 The corresponding descriptions and illustrations shown will not be repeated here.

[0097] In this embodiment of the application, to achieve the centering adjustment of the LED beads in the light source mechanism, a first sliding mechanism and a second sliding mechanism are set in the base to drive the light source mechanism to move, and the first direction corresponding to the first sliding mechanism and the second direction corresponding to the second sliding mechanism do not affect each other, so as to achieve the adjustable function.

[0098] This application embodiment achieves stepless adjustment by using the adjustment method of each adjusting screw in conjunction with the threaded part of each sliding mechanism, thereby enabling the lamp beads of the light source mechanism to be adjusted to any position within the adjustment plane range.

[0099] In this embodiment, each adjusting screw works in conjunction with each locking spring. The locking springs utilize their own preload to automatically lock after adjustment. Compared to conventional threaded locking methods, the springs also provide shock absorption, preventing the adjustment structure from loosening in vibrating environments.

[0100] It should be noted that the light source adjustment device proposed in this application is not limited to improving... Figure 1 The vision system shown is also applicable to other vision systems.

[0101] The light source adjustment device provided in this application includes a light source adjustment device 100, a fixing device, and a lens 230. The light source adjustment device 100 includes a light source mechanism 110, a first sliding mechanism 120, and a second sliding mechanism 130. The light source mechanism 110 is disposed on one end of the first sliding mechanism 120, and the other end of the first sliding mechanism 120 is disposed within the second sliding mechanism 130. The first sliding mechanism 120 can move along a first direction. The second sliding mechanism 130 is then moved along a second direction. By making the first direction perpendicular to the second direction, the light source mechanism 110 can be moved to any position in the plane formed by the first and second directions, and the position of the light source mechanism 110 is stable, thereby improving the accuracy of the alignment between the light source mechanism 110 and the focal point of the lens 230.

[0102] Figure 6a This invention provides a schematic diagram illustrating the structure of a light source adjustment device according to an embodiment of this application. Figure 6b A cross-sectional schematic diagram of the structure of a light source adjustment device according to an embodiment of this application is shown, as follows: Figure 6a and Figure 6b As shown in the figure, this application embodiment provides a light source adjustment device 200.

[0103] The light source adjustment device 200 includes a lens 230, a fixing device, and a light source adjustment device 100.

[0104] Among them, the light source adjustment device 100, such as Figures 2a to 5 The light source adjustment device 100 shown has the same structure and principle, and will not be described in detail here.

[0105] like Figure 6a and Figure 6b As shown, the fixing device is used to fix the light source adjustment device 100 and the lens 230.

[0106] The fixing device includes a positioning mechanism. The base plate assembly 210 of the positioning mechanism is used to determine the relative position of the fixing device and the light source adjustment device 100, and the side plate assembly 220 of the positioning mechanism is used to determine the relative position of the lens 230 and the light source adjustment device 100.

[0107] The base plate assembly 210 and the side plate assembly 220 are detachably connected.

[0108] The side panel assembly 220 includes a first side panel 221 and a second side panel 222, which are arranged opposite to each other. One end of the first side panel 221 is detachably connected to the bottom plate assembly 210, and one end of the second side panel 222 is detachably connected to the bottom plate assembly 210.

[0109] The first side plate 221 has a first positioning groove 221a, and the second side plate 222 also has a second positioning groove 222a. Depending on the different vision systems, or the vision system with parallel and coaxial light sources, the position of the lens 230 in the vision system can be determined, and the position of the beam splitter in the vision system can also be determined.

[0110] In some embodiments, the first side plate 221 and the second side plate 222 may also have other positioning grooves for fixing other optical devices, such as beam splitters.

[0111] In some embodiments, the side panel assembly 220 may further include a third side panel and a fourth side panel, which are disposed opposite to each other, and the side panel may be made of a light-shielding material.

[0112] The third and fourth side panels may have viewing windows for the transmission of light beams.

[0113] In one embodiment, the positioning mechanism may also include a top plate assembly.

[0114] In some embodiments, in a vision system with parallel and coaxial light sources, the relative positions of the light source adjustment device 100 and the Fresnel lens 230 are determined by a fixing device, and the LED beads of the light source mechanism are aligned with the centers of other optical components by the light source adjustment device 100, thereby improving the overall parallelism and uniformity of the vision system.

[0115] The light source adjustment device 100 solves the problems of assembly and manufacturing precision issues, as well as relative positional deviations between optical components, in coaxial parallel light sources by adjusting the position of the LED beads. This improves the parallelism and uniformity performance of the coaxial parallel light source.

[0116] It should be noted that the light source adjustment device proposed in this application is not limited to improving... Figure 1 The vision system shown is also applicable to other vision systems.

[0117] This application provides a light source adjustment device 200, which includes a lens 230, a fixing device, and a light source adjustment device 100. The light source adjustment device 200 includes a light source adjustment device 100, a fixing device, and a lens 230. The light source adjustment device 100 includes a light source mechanism 110, a first sliding mechanism 120, and a second sliding mechanism 130. The light source mechanism 110 is disposed at one end of the first sliding mechanism 120, and the other end of the first sliding mechanism 120 is disposed within the second sliding mechanism 130. The first sliding mechanism 120 is movable along a first direction. The second sliding mechanism 130 is then moved along a second direction. Because the first direction is perpendicular to the second direction, the light source mechanism 110 can be moved to any position in the plane formed by the first and second directions, and the position of the light source mechanism 110 is stable, improving the accuracy of the alignment between the light source mechanism 110 and the focal point of the lens 230.

[0118] The following paragraphs will compare and list the Chinese terms used in this application specification and their corresponding English terms to facilitate reading and understanding.

[0119] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the discussion in some embodiments above is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various different variations of the embodiments suitable for specific application considerations.

Claims

1. A light source adjustment device, characterized in that, It includes a light source mechanism, a first sliding mechanism, and a second sliding mechanism; The light source mechanism is disposed on one end of the first sliding mechanism; The other end of the first sliding mechanism is disposed inside the second sliding mechanism, and the first sliding mechanism can move along the first direction; The second sliding mechanism moves along the second direction; Wherein, the first direction is perpendicular to the second direction; The first sliding mechanism has a protrusion at one end, and the second sliding mechanism has an insertion part at the other end; The protrusion of the first sliding mechanism is disposed within the embedded portion of the second sliding mechanism; Wherein, the length of the protrusion is less than the length of the embedded part, and the direction in which the length of the embedded part is located is the first direction; The first sliding mechanism includes a first adjusting component; The first adjustment component is used to adjust the position of the first sliding mechanism in the first direction; The first adjustment assembly includes a first adjustment through hole, a first adjustment screw, and a first locking spring. The first adjustment through hole includes a first fixing part and a first threaded part. The first locking spring is sleeved on the side of the first adjusting screw near the screw head, and the first locking spring is located between one end of the first fixing part and the screw head of the first adjusting screw, wherein one end of the first fixing part is connected to the first threaded part; The side of the first adjusting screw away from the screw head is movably connected to the first sliding mechanism via the first threaded portion.

2. The light source adjustment device according to claim 1, characterized in that, It also includes a base; One end of the second sliding mechanism is disposed inside the base, and the second sliding mechanism can move between the first surface of the base and the second surface of the base; The first surface and the second surface are arranged opposite each other, the first surface and the second surface are arranged in the second direction, and the distance between the first surface and the second surface is greater than the length of the second sliding mechanism in the second direction.

3. The light source adjustment device according to claim 2, characterized in that, The base has a first through hole for inserting the first adjusting screw.

4. The light source adjustment device according to claim 2, characterized in that, The second sliding mechanism includes a second adjusting component; The second adjustment component is used to adjust the position of the second sliding mechanism in the second direction.

5. The light source adjustment device according to claim 4, characterized in that, The second adjustment assembly includes a second adjustment through hole, a second adjustment screw, and a second locking spring. The second adjustment through hole includes a second fixing part and a second threaded part. The second locking spring is sleeved on the side of the second adjusting screw near the screw head, and is located between one end of the second locking spring located at the second fixing part and the screw head of the second adjusting screw, wherein one end of the second fixing part is connected to the second threaded part; The side of the second adjusting screw away from the screw head is movably connected to the second sliding mechanism via the second threaded portion.

6. The light source adjustment device according to claim 5, characterized in that, The base has a second through hole for inserting the second adjusting screw.

7. A light source adjustment device, characterized in that, Includes a lens, a fixing device, and a light source adjustment device as described in any one of claims 1-5; The fixing device is used to fix the light source adjustment device and the lens; The light source adjustment device is used to control the alignment of the center of the light source set on the light source adjustment device with the center of the lens.

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