Cross laser module with positioning points

Abstract

This utility model discloses a cross-shaped laser module with positioning points, belonging to the field of laser device technology. It includes a housing, a laser emitting system, a collimating lens, a trapezoidal prism, and a T-shaped cylindrical mirror assembly. The laser beam emitted by the laser emitting system is collimated into a parallel laser beam after passing through the collimating lens. When the parallel laser beam passes through the trapezoidal prism, the middle portion of the parallel laser beam passes through the two bottom edges to form a transmitted beam. The transmitted beam strikes the T-shaped cylindrical mirror assembly perpendicularly, generating two mutually perpendicular laser lines. The parallel laser beams on both sides are reflected by corresponding inclined sides to form two reflected beams. The reflected beams pass through the light-emitting holes on the housing to form two laser positioning point spots. This utility model adds a trapezoidal prism to the optical path, which simultaneously forms a cross-shaped laser line and generates laser positioning point spots on the upper and lower sides of the module, giving it both cross-shaped calibration and point laser positioning functions.

Description

Technical Field

[0001] This utility model belongs to the field of laser device technology, and specifically relates to a cross laser module with positioning points. Background Technology

[0002] Cross laser modules are widely used in industries such as industrial manufacturing and processing, and building decoration. The existing cross laser module structure usually involves a laser beam generated by a laser emitter being collimated into a parallel laser beam after passing through a collimating lens. The parallel laser beam then passes through two cylindrical mirrors placed in a "T" shape to generate a horizontal line and a vertical line, respectively. The two beams are perpendicular to each other and intersect to form a cross-shaped laser line.

[0003] To meet the needs of use under complex working conditions, this application technically modifies the existing cross laser module to generate laser positioning spotlights on the upper and lower sides of the module while forming a cross laser line, thus enabling it to have both cross line calibration function and point laser positioning function. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cross laser module with positioning points.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cross laser module with positioning points includes a housing, a laser emitting system located inside the housing, a collimating lens, a trapezoidal prism, and a T-shaped cylindrical mirror assembly located at one end of the housing.

[0007] The laser emitting system, collimating lens, trapezoidal prism, and T-shaped cylindrical mirror assembly are arranged sequentially along the axial direction of the outer shell.

[0008] The trapezoidal prism has two parallel base edges perpendicular to the central axis of the outer shell, with the smaller base edge facing the collimating lens, and the two inclined side surfaces of the trapezoidal prism are symmetrically arranged.

[0009] The bottom edge is coated with a fully transparent film, and the inclined side surface is coated with a fully reflective film;

[0010] The outer shell is provided with two light-emitting holes that correspond one-to-one with the inclined side;

[0011] The laser beam emitted by the laser emitting system is collimated into a parallel laser beam after passing through the collimating lens. When the parallel laser beam passes through the trapezoidal prism, the middle part of the parallel laser beam passes through the two bottom edges to form a transmitted beam. The transmitted beam hits the T-shaped cylindrical mirror assembly perpendicularly to generate two mutually perpendicular laser lines. The parallel laser beams on both sides are reflected by the corresponding inclined sides to form two reflected beams. The reflected beams pass through the light outlet holes on the outer shell to form two laser positioning point spots.

[0012] Preferably, the laser emission system includes a pump source bracket fixedly disposed inside the housing, and a pump source is coaxially fixedly disposed at one end of the axial end of the inner hole of the pump source bracket.

[0013] Preferably, a lens bracket is coaxially disposed at the other end of the inner hole of the pump source bracket, and the lens bracket is threadedly connected to the inner hole of the pump source bracket. The collimating lens is coaxially fixedly disposed in the inner hole of the lens bracket.

[0014] Preferably, the trapezoidal prism is fixedly mounted on a prism bracket, and the prism bracket is connected to the pump source bracket via an adjustment component.

[0015] Preferably, the adjusting assembly includes two first bolts and two second bolts;

[0016] The prism bracket is provided with two waist-shaped holes that mate with the first bolt, and the pump source bracket is provided with two first threaded holes that mate with the first bolt.

[0017] The prism support is provided with two second threaded holes that mate with the second bolt.

[0018] Preferably, the T-shaped cylindrical mirror assembly includes a vertical cylindrical mirror for forming a horizontal laser line and a horizontal cylindrical mirror for forming a vertical laser line.

[0019] The outer casing has vertical mounting holes for mounting vertical cylindrical mirrors and horizontal mounting holes for mounting horizontal cylindrical mirrors on the end face away from the laser emission system.

[0020] Preferably, the housing is provided with a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror and the central axis of the housing, a horizontal adjustment component for adjusting the perpendicularity between the central axis of the horizontal cylindrical mirror and the central axis of the housing, and a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror and the central axis of the horizontal cylindrical mirror.

[0021] Preferably, the housing includes a mounting portion for mounting the T-shaped cylindrical mirror assembly and a cylinder coaxially fixed at one end of the mounting portion;

[0022] The vertical adjustment assembly includes two third bolts extending along the axial direction of the outer shell, and the two third bolts are arranged along the axial direction of the vertical cylindrical mirror.

[0023] A first saw kerf is formed between the mounting part and the cylinder;

[0024] The mounting part is provided with a third threaded hole that extends to the first saw kerf, and the third bolt is adapted to connect with the corresponding third threaded hole.

[0025] Preferably, the horizontal adjustment assembly includes two fourth bolts extending along the axial direction of the housing, and the two fourth bolts are arranged along the axial direction of the horizontal cylindrical mirror.

[0026] A second saw slit is provided on the outer wall of the cylinder;

[0027] The cylinder has a fourth threaded hole that extends to the second saw cut on its axial end face near the mounting part, and the fourth bolt is adapted to connect with the corresponding fourth threaded hole.

[0028] Preferably, the mounting part is provided with two fifth threaded holes that extend to the vertical mounting hole, and the central axes of the two fifth threaded holes are collinear and perpendicular to the central axis of the outer shell;

[0029] The vertical adjustment assembly consists of two fifth bolts, each threaded into a corresponding fifth threaded hole.

[0030] The beneficial effects of this utility model are:

[0031] (1) This utility model adds a trapezoidal prism to the optical path to split the parallel laser beam, so that it forms a cross-shaped laser line and generates laser positioning spot on the upper and lower sides of the module. This gives it the function of cross line calibration and point laser positioning, increasing the adaptability of the cross laser module under complex working conditions, with higher functional integration and stronger adaptability.

[0032] (2) The two first bolts and two second bolts in this utility model can realize multi-dimensional adjustment of the distance between the trapezoidal prism and the collimating lens, the orientation of the two inclined sides in the trapezoidal prism, and the perpendicularity between the bottom edge of the trapezoidal prism and the central axis of the outer shell, thereby increasing the positioning accuracy of the laser positioning point spot. Attached Figure Description

[0033] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0034] Figure 1 This is a three-dimensional schematic diagram of the cross laser module with positioning points according to this utility model;

[0035] Figure 2 This is a schematic front view of the cross laser module with positioning points according to this utility model;

[0036] Figure 3 yes Figure 2 Sectional view along axis AA;

[0037] Figure 4 This is a schematic left view of the structure of the cross laser module with positioning points of this utility model;

[0038] Figure 5 This is a three-dimensional schematic diagram of the combination of the laser emitting system, collimating lens, and trapezoidal prism in this utility model;

[0039] Figure 6 This is a schematic diagram of the internal structure of the laser emitting system, collimating lens, and trapezoidal prism in this utility model.

[0040] Figure 7 This is a schematic diagram of the combination of the laser emitting system, collimating lens, and trapezoidal prism in this utility model, viewed from the left.

[0041] Figure 8 yes Figure 7 BB-direction sectional view;

[0042] Figure 9 yes Figure 7 CC-direction sectional view;

[0043] Figure 10 This is a schematic diagram of the cross-shaped laser line formed in the cross laser module with positioning points of this utility model;

[0044] Figure 11 This is a schematic diagram of two laser positioning point spots formed in the cross laser module with positioning points of this utility model;

[0045] in:

[0046] 1. Outer shell; 11. Light emission hole; 12. Mounting part; 13. Cylinder; 14. First saw kerf; 15. Third threaded hole; 16. Second saw kerf; 17. Fourth threaded hole; 18. Fifth threaded hole; 19. Fifth bolt; 2. Laser emission system; 21. Pump source; 22. Pump source bracket; 221. First threaded hole; 3. Collimating lens; 31. Lens bracket; 4. Trapezoidal prism; 41. Bottom edge; 42. Inclined side; 43. Prism bracket; 431. Waist-shaped hole; 432. Second threaded hole; 44. First bolt; 45. Second bolt; 5. Transmitted beam; 6. Reflected beam; 7. Laser positioning point spot; 8. Vertical cylindrical mirror; 81. Third bolt; 9. Horizontal cylindrical mirror; 91. Fourth bolt; 10. Laser line. Detailed Implementation

[0047] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0050] In this utility model, terms such as "connected" and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0052] like Figures 1 to 11 As shown, a cross laser module with positioning points includes a housing 1, a laser emitting system 2 located inside the housing 1, a collimating lens 3, a trapezoidal prism 4, and a T-shaped cylindrical mirror assembly located at one end of the housing 1.

[0053] The laser emitting system 2, collimating lens 3, trapezoidal prism 4, and T-shaped cylindrical mirror assembly are arranged sequentially along the axial direction of the outer shell 1.

[0054] The two parallel base edges 41 of the trapezoidal prism 4 are perpendicular to the central axis of the outer shell 1. The smaller base edge 41 faces the collimating lens 3. The two inclined side edges 42 of the trapezoidal prism 4 are symmetrically arranged, and the other two side edges of the trapezoidal prism 4 are parallel. The angle between the larger base edge 41 and the inclined side edge 42 is 45°.

[0055] The bottom edge 41 is coated with a fully transparent film, and the inclined side surface 42 is coated with a fully reflective film;

[0056] The outer shell 1 is provided with two light-emitting holes 11 that correspond one-to-one with the inclined side 42;

[0057] The laser beam emitted by the laser emitting system 2 is collimated into a parallel laser beam after passing through the collimating lens 3. When the parallel laser beam passes through the trapezoidal prism 4, the middle part of the parallel laser beam passes through the two bottom edges 41 to form a transmitted beam 5. The transmitted beam 5 strikes the T-shaped cylindrical mirror assembly vertically to generate two mutually perpendicular laser lines 10. The parallel laser beams on both sides are reflected by the corresponding inclined sides 42 to form two reflected beams 6. The reflected beams 6 pass through the light outlet 11 on the outer shell 1 to form two laser positioning point spots 7.

[0058] Preferably, the laser emission system 2 includes a pump source bracket 22 fixedly disposed inside the housing 1, and a pump source 21 is coaxially fixedly disposed at one end of the axial end of the inner hole of the pump source bracket 22.

[0059] Preferably, a lens bracket 31 is coaxially disposed at the other end of the inner hole of the pump source bracket 22, and the lens bracket 31 is threadedly connected to the inner hole of the pump source bracket 22. The collimating lens 3 is coaxially fixedly disposed in the inner hole of the lens bracket 31.

[0060] By rotating the lens bracket 31, the distance between the collimating lens 3 and the pump source 21 can be adjusted.

[0061] Preferably, the trapezoidal prism 4 is fixedly mounted on the prism bracket 43, which is connected to the pump source bracket 22 via an adjustment assembly. The prism bracket 43 has internal space for assembling the lens bracket 31 and for the light beam to pass through.

[0062] Preferably, the adjustment assembly includes two first bolts 44 and two second bolts 45; the length direction of the first bolts 44 and the second bolts 45 is consistent with the axial direction of the outer casing 1;

[0063] The prism bracket 43 is provided with two waist-shaped holes 431 that cooperate with the first bolt 44, and the pump source bracket 22 is provided with two first threaded holes 221 that cooperate with the first bolt 44.

[0064] The prism bracket 43 is provided with two second threaded holes 432 that mate with the second bolt 45.

[0065] When installing the prism bracket 43 carrying the trapezoidal prism 4, firstly, two first bolts 44 are threaded through the corresponding oblong holes 431 and then threaded into the corresponding first threaded holes 221 on the pump source bracket 22. Then, a second bolt 45 is threaded into the corresponding second threaded hole 432. When the second bolt 45 is not tightened and is pressing against the axial end face of the pump source bracket 22, the prism bracket 43 is hung on the two first bolts 44 through the two oblong holes 431. At this time, the prism bracket 43 carrying the trapezoidal prism 4 can translate along the first bolts 44 and rotate along the oblong holes 431. Translation adjusts the distance between the trapezoidal prism 4 and the collimating lens 3, while rotation adjusts the distance between the trapezoidal prism 4 and the collimating lens 3. The orientation of the two inclined sides 42 is adjusted so that the inclined sides 42 correspond to the corresponding light output holes 11. Then, the first bolt 44 and the second bolt 45 are tightened to connect the prism support 43 carrying the trapezoidal prism 4 to the pump source support 22. At this time, the two first bolts 44 pull the prism support 43, and the two second bolts 45 push the prism support 43, so that the two first bolts 44 and the two second bolts 45 form a "two-pull, two-push" form. At this time, the perpendicularity between the bottom edge 41 of the trapezoidal prism 4 and the central axis of the outer shell 1 can be adjusted by rotating and tightening the corresponding first bolt 44 or second bolt 45. The adjustment ensures that the bottom edge 41 is perpendicular to the central axis of the outer shell 1. Therefore, the setting of the adjustment component in this application realizes multi-dimensional adjustment of the distance between the trapezoidal prism 4 and the collimating lens 3, the orientation of the two inclined sides 42 of the trapezoidal prism 4, and the perpendicularity between the bottom edge 41 of the trapezoidal prism 4 and the central axis of the outer shell 1, which increases the positioning accuracy of the laser positioning point spot 7.

[0066] Preferably, the T-shaped cylindrical mirror assembly includes a vertical cylindrical mirror 8 for forming a horizontal laser line 10 and a horizontal cylindrical mirror 9 for forming a vertical laser line 10.

[0067] The outer casing 1 has a vertical mounting hole for mounting a vertical cylindrical mirror 8 and a horizontal mounting hole for mounting a horizontal cylindrical mirror 9 on the end face away from the laser emission system 2.

[0068] Preferably, the outer casing 1 is provided with a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror 8 and the central axis of the outer casing 1, a horizontal adjustment component for adjusting the perpendicularity between the central axis of the horizontal cylindrical mirror 9 and the central axis of the outer casing 1, and a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror 8 and the central axis of the horizontal cylindrical mirror 9.

[0069] Preferably, the housing 1 includes a mounting part 12 for mounting the T-shaped cylindrical mirror assembly and a cylinder 13 coaxially fixed at one end of the mounting part 12;

[0070] The vertical adjustment assembly includes two third bolts 81 extending along the axial direction of the outer casing 1, and the two third bolts 81 are arranged along the axial direction of the vertical cylindrical mirror 8.

[0071] A first saw slit 14 is formed between the mounting part 12 and the cylinder 13;

[0072] The mounting part 12 is provided with a third threaded hole 15 that extends to the first saw kerf 14, and the third bolt 81 is adapted to be connected to the corresponding third threaded hole 15.

[0073] Rotate the third bolt 81 so that the end of the third bolt 81 contacts the axial end face of the cylinder 13. Then, adjust the angle of the vertical cylindrical mirror 8 by rotating the two third bolts 81 until the central axis of the vertical cylindrical mirror 8 is perpendicular to the central axis of the outer shell 1.

[0074] Preferably, the horizontal adjustment assembly includes two fourth bolts 91 extending along the axial direction of the housing 1, and the two fourth bolts 91 are arranged along the axial direction of the horizontal cylindrical mirror 9.

[0075] A second saw slit 16 is provided on the outer side wall of the cylinder 13;

[0076] The cylinder 13 is provided with a fourth threaded hole 17 on the axial end face near the mounting part 12, which extends to the second saw kerf 16. The fourth bolt 91 is adapted to be connected to the corresponding fourth threaded hole 17.

[0077] Rotate the fourth bolt 91 so that the end of the fourth bolt 91 abuts against the axial end face of the second saw kerf 16. Then, adjust the angle of the horizontal cylindrical mirror 9 by rotating the two fourth bolts 91 until the central axis of the horizontal cylindrical mirror 9 is perpendicular to the central axis of the outer casing 1.

[0078] Preferably, the mounting part 12 is provided with two fifth threaded holes 18 that extend to the vertical mounting hole, and the central axes of the two fifth threaded holes 18 are collinear and perpendicular to the central axis of the outer shell 1;

[0079] The vertical adjustment assembly consists of two fifth bolts 19, each threaded into a corresponding fifth threaded hole 18.

[0080] The two fifth bolts 19 are in contact with the vertical cylindrical mirror 8. By rotating the two fifth bolts 19, the vertical cylindrical mirror 8 can be made to swing slightly, thereby adjusting the perpendicularity between the central axis of the vertical cylindrical mirror 8 and the central axis of the horizontal cylindrical mirror 9.

[0081] A cross-shaped laser module with positioning points is implemented as follows:

[0082] The laser beam emitted by pump source 21 is collimated into a parallel laser beam after passing through collimating lens 3. When the parallel laser beam passes through trapezoidal prism 4, most of the parallel laser beam in the middle passes through the two bottom edges 41 to form a transmitted beam 5. The transmitted beam 5 strikes the T-shaped cylindrical mirror assembly vertically. Part of the transmitted beam 5 passes through vertical cylindrical mirror 8 to form a horizontal laser line 10, and another part of the transmitted beam 5 passes through horizontal cylindrical mirror 9 to form a vertical laser line 10. The horizontal laser line 10 and the vertical laser line 10 form a cross-shaped laser line. The small parts of the parallel laser beam on both sides are reflected by the corresponding inclined side 42 to form two reflected beams 6. The reflected beams 6 pass through the light outlet 11 on the outer shell 1 to form two laser positioning point spots 7.

[0083] This invention adds a trapezoidal prism 4 to the optical path to split the parallel laser beam, forming a cross-shaped laser line and generating laser positioning spot 7 on the upper and lower sides of the module. This gives it both cross-line calibration and point laser positioning functions, increasing the adaptability of the cross laser module to complex working conditions, resulting in higher functional integration and stronger adaptability.

[0084] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, they are not intended to limit the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the protection scope of the present utility model.

Claims

1. A cross-shaped laser module with positioning points, characterized in that, It includes an outer casing, a laser emitting system located inside the casing, a collimating lens, a trapezoidal prism, and a T-shaped cylindrical mirror assembly located at one end of the casing; The laser emitting system, collimating lens, trapezoidal prism, and T-shaped cylindrical mirror assembly are arranged sequentially along the axial direction of the outer shell. The trapezoidal prism has two parallel base edges perpendicular to the central axis of the outer shell, with the smaller base edge facing the collimating lens, and the two inclined side surfaces of the trapezoidal prism are symmetrically arranged. The bottom edge is coated with a fully transparent film, and the inclined side surface is coated with a fully reflective film; The outer shell is provided with two light-emitting holes that correspond one-to-one with the inclined side; The laser beam emitted by the laser emitting system is collimated into a parallel laser beam after passing through the collimating lens. When the parallel laser beam passes through the trapezoidal prism, the middle part of the parallel laser beam passes through the two bottom edges to form a transmitted beam. The transmitted beam hits the T-shaped cylindrical mirror assembly perpendicularly to generate two mutually perpendicular laser lines. The parallel laser beams on both sides are reflected by the corresponding inclined sides to form two reflected beams. The reflected beams pass through the light outlet holes on the outer shell to form two laser positioning point spots.

2. The cross laser module with positioning points as described in claim 1, characterized in that, The laser emission system includes a pump source bracket fixedly installed inside the housing, with the pump source coaxially fixed at one end of the inner hole of the pump source bracket.

3. The cross laser module with positioning points as described in claim 2, characterized in that, A lens bracket is coaxially mounted on the other end of the inner hole of the pump source bracket. The lens bracket is threadedly connected to the inner hole of the pump source bracket, and the collimating lens is coaxially fixed in the inner hole of the lens bracket.

4. The cross laser module with positioning points as described in claim 2, characterized in that, The trapezoidal prism is fixedly mounted on a prism bracket, which is connected to a pump source bracket via an adjustment assembly.

5. The cross laser module with positioning points as described in claim 4, characterized in that, The adjustment assembly includes two first bolts and two second bolts; The prism bracket is provided with two waist-shaped holes that mate with the first bolt, and the pump source bracket is provided with two first threaded holes that mate with the first bolt. The prism support is provided with two second threaded holes that mate with the second bolt.

6. The cross laser module with positioning points as described in claim 1, characterized in that, The T-shaped cylindrical mirror assembly includes a vertical cylindrical mirror for forming a horizontal laser line and a horizontal cylindrical mirror for forming a vertical laser line. The outer casing has vertical mounting holes for mounting vertical cylindrical mirrors and horizontal mounting holes for mounting horizontal cylindrical mirrors on the end face away from the laser emission system.

7. The cross laser module with positioning points as described in claim 6, characterized in that, The outer casing is provided with a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror and the central axis of the outer casing, a horizontal adjustment component for adjusting the perpendicularity between the central axis of the horizontal cylindrical mirror and the central axis of the outer casing, and a vertical adjustment component for adjusting the perpendicularity between the central axis of the vertical cylindrical mirror and the central axis of the horizontal cylindrical mirror.

8. The cross laser module with positioning points as described in claim 7, characterized in that, The housing includes a mounting part for mounting the T-shaped cylindrical mirror assembly and a cylinder coaxially fixed at one end of the mounting part. The vertical adjustment assembly includes two third bolts extending along the axial direction of the outer shell, and the two third bolts are arranged along the axial direction of the vertical cylindrical mirror. A first saw kerf is formed between the mounting part and the cylinder; The mounting part is provided with a third threaded hole that extends to the first saw kerf, and the third bolt is adapted to connect with the corresponding third threaded hole.

9. The cross laser module with positioning points as described in claim 8, characterized in that, The horizontal adjustment assembly includes two fourth bolts extending along the axial direction of the housing, and the two fourth bolts are arranged along the axial direction of the horizontal cylindrical mirror. A second saw slit is provided on the outer wall of the cylinder; The cylinder has a fourth threaded hole that extends to the second saw cut on its axial end face near the mounting part, and the fourth bolt is adapted to connect with the corresponding fourth threaded hole.

10. The cross laser module with positioning points as described in claim 8, characterized in that, The mounting part is provided with two fifth threaded holes that extend to the vertical mounting hole. The central axes of the two fifth threaded holes are collinear and perpendicular to the central axis of the outer shell. The vertical adjustment assembly consists of two fifth bolts, each threaded into a corresponding fifth threaded hole.

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