Lens with adjustable rectangular light spot focusing structure

Abstract

The utility model discloses a lens with an adjustable rectangular light spot focusing structure, and relates to the technical field of photoelectricity. A rectangular light source is arranged on one side of the installation box, movable frames are arranged on the two sides in the installation box in a sliding fit mode, a convex lens and a concave lens are arranged in the movable frames on the two sides respectively, and an adjusting assembly is arranged in the installation box. The adjusting cylinder on one side is pressed to enable the clamping pins on the two sides to be separated from the clamping grooves, then the clamping pins are rotated to drive the threaded rod to rotate, the movable frame is matched with the adjusting assembly to drive the convex lens in the movable frame to conduct position adjustment, and the position adjustment of the concave lens is similar. When the distance between the convex lens and the concave lens is not adjusted, the clamping pins on the two sides of the adjusting cylinder are located in the clamping grooves to play a role in rotating and fixing the threaded rod, and the situation that in the using process, vibration possibly generated in the surrounding environment drives the threaded rod to rotate, and different lens surfaces on the two sides are not stable is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of optoelectronics, and in particular relates to a lens with an adjustable rectangular light spot focusing structure. Background Art

[0002] In existing laser processing technologies, flat-top rectangular laser spots are increasingly used, such as in heat treatment scenarios such as quenching, soldering, cladding and plastic welding. They are generally implemented using diffraction optics, microlens arrays and rectangular optical fibers. Once the system is designed, one model can only correspond to one ratio, without the possibility of fine-tuning or deformation, and lacks flexibility.

[0003] A Chinese patent with publication number CN218974690U discloses a rectangular spot focusing lens with adjustable length-width ratio, which relates to the field of optoelectronic technology and includes a mounting box, wherein a rectangular light source is arranged between the inner walls of the mounting box near one side edge, and guide grooves are provided on the inner bottom surface of the mounting box near both side edges, and sliding blocks are slidably connected inside the two guide grooves, wherein a concave mirror is fixed on the top of one of the sliding blocks, and a convex mirror is fixed on the top of the other sliding block. The utility model arranges a concave mirror and a convex mirror inside the mounting box, and the concave surface of the concave mirror is opposite to the convex surface of the convex mirror, so that after the rectangular light source emits a rectangular light, it passes through the plane side of the concave mirror and enters the interior of the concave mirror, and then refraction occurs at the concave surface, thereby expanding the area of ​​the rectangular light, and the refracted rectangular light is emitted from the convex surface of the convex mirror into the interior of the convex mirror, and finally emitted from the plane of the convex mirror, thereby emitting the refracted rectangular light straightly.

[0004] The above aspect ratio adjustable rectangular spot focusing lens drives the screw to rotate by turning the adjustment knob so that the distance between the different mirrors on both sides can be adjusted. During use, the vibration that may occur in the surrounding environment will drive the screw to rotate, and the stability of the different mirrors on both sides after adjustment cannot be guaranteed. The distance between the two lenses cannot be accurately adjusted by a single adjustment knob.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a lens with an adjustable rectangular light spot focusing structure.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A lens with an adjustable rectangular spot focusing structure comprises a mounting box, a rectangular light source is mounted on one side of the mounting box, moving frames are slidably matched on both sides of the mounting box, and convex lenses and concave lenses are respectively mounted in the moving frames on both sides;

[0009] An adjustment assembly is arranged in the installation box, and the adjustment assembly includes a threaded rod rotatably fitted on both sides of the side of the installation box, and an adjustment cylinder slidably fitted on one end of the threaded rod. Pins are installed on both sides of the adjustment cylinder, and multiple slots are opened on both sides of the side of the installation box. The pins are located in the slots, and the adjustment assembly cooperates with the moving frame.

[0010] Optionally, both sides of the side of the installation box are provided with sliding grooves, and a slider is installed on one side of the movable frame. The slider slides in the sliding groove. A threaded hole is provided on one side of the slider, and the threaded rod is threaded in the threaded hole. Both sides of the side of the installation box are provided with through holes, and the threaded rod rotates and fits in the through holes.

[0011] Optionally, a limit plate is installed at one end of the threaded rod, and an adjusting plate is installed on the other side of the adjusting cylinder. The limit plate slides in the adjusting cylinder and is away from the side of the adjusting plate. A spring is installed in the adjusting cylinder, and one end of the spring abuts against one side of the limit plate. Limit grooves are provided on opposite sides of the threaded rod, and limit blocks are installed on opposite sides of the adjusting cylinder. The limit blocks slide in the limit grooves.

[0012] Optionally, a rotation groove is provided on opposite sides of the side of the installation box, the adjustment tube is rotated to fit in the rotation groove, a placement groove is provided in the rotation groove, the pins on both sides are located in the placement groove, and the slot is provided on one side of the placement groove.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] The lens with an adjustable rectangular spot focusing structure presses the adjustment tube on one side to disengage the pins on both sides from the slots, and then rotates to drive the threaded rod to rotate. The moving frame cooperates with the adjustment component to drive the convex lens in the moving frame to adjust the position, and the concave lens position adjustment is similar, so that the distance between the convex lens and the concave lens can be precisely adjusted. When no adjustment is performed, the pins on both sides of the adjustment tube are located in the slots to rotate and fix the threaded rod, thereby reducing the vibration that may occur in the surrounding environment during use, which will drive the threaded rod to rotate, and it is impossible to ensure that the different mirror surfaces on both sides are stable after adjustment.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0018] Figure 2 This is a structural diagram of the mobile frame connection of an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a cross-sectional view of an installation box according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment component of the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the interior of the placement tank of the utility model embodiment;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-installation box, 2-rectangular light source, 3-movable frame, 4-threaded rod, 5-adjustment cylinder, 6-convex lens, 7-concave lens, 101-slide groove, 102-through hole, 103-placing groove, 104-card slot, 105-rotation groove, 301-slider, 302-threaded hole, 401-limiting plate, 402-limiting groove, 501-pin, 502-limiting block, 503-spring, 504-adjustment plate.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be described in further detail with reference to the accompanying drawings.

[0026] See also Figure 1-5 As shown, in this embodiment, a lens with an adjustable rectangular spot focusing structure is provided, comprising a mounting box 1, a rectangular light source 2 is mounted on one side of the mounting box 1, moving frames 3 are slidably matched on both sides of the mounting box 1, and convex lenses 6 and concave lenses 7 are respectively mounted in the moving frames 3 on both sides;

[0027] An adjustment component is arranged in the installation box 1, and the adjustment component includes a threaded rod 4 rotatably fitted on both sides of the side of the installation box 1, and an adjustment cylinder 5 slidably fitted on one end of the threaded rod 4, and both sides of the adjustment cylinder 5 are equipped with a bayonet 501, and both sides of the side of the installation box 1 are provided with a plurality of slots 104, and the bayonet 501 is located in the slots 104, and the adjustment component cooperates with the movable frame 3.

[0028] The application of one aspect of this embodiment is: when using a lens with a rectangular spot focusing structure, the adjustment tube 5 on one side is pressed to make the pins 501 on both sides disengage from the slots 104, and then rotate to drive the threaded rod 4 to rotate, and the moving frame 3 cooperates with the adjustment component to drive the convex lens 6 in the moving frame 3 to adjust the position, and the position adjustment of the concave lens 7 is similar, so that the distance between the convex lens 6 and the concave lens 7 can be precisely adjusted. When no adjustment is performed, the pins 501 on both sides of the adjustment tube 5 are located in the slots 104 to rotate and fix the threaded rod 4, thereby reducing the vibration that may occur in the surrounding environment during use, which will drive the threaded rod 4 to rotate, and it is impossible to ensure that the different mirror surfaces on both sides are stable after adjustment.

[0029] In this embodiment, both sides of the side of the installation box 1 are provided with a slide groove 101, and a slider 301 is installed on one side of the movable frame 3. The slider 301 slides and fits in the slide groove 101. A threaded hole 302 is provided on one side of the slider 301, and the threaded rod 4 is threadedly fitted in the threaded hole 302. Both sides of the side of the installation box 1 are provided with a through hole 102, and the threaded rod 4 rotates and fits in the through hole 102.

[0030] A limit plate 401 is installed at one end of the threaded rod 4 of this embodiment, and an adjustment plate 504 is installed on the other side of the adjustment cylinder 5. The limit plate 401 is slidably fitted in the adjustment cylinder 5 and is away from the side of the adjustment plate 504. A spring 503 is installed in the adjustment cylinder 5, and one end of the spring 503 abuts against one side of the limit plate 401. Limit grooves 402 are provided on opposite sides of the threaded rod 4, and limit blocks 502 are installed on opposite sides of the adjustment cylinder 5. The limit blocks 502 are slidably fitted in the limit grooves 402.

[0031] The mounting box 1 of this embodiment has rotation grooves 105 on opposite sides thereof. The adjusting tube 5 rotates to fit into the rotation groove 105 . A placement groove 103 is provided in the rotation groove 105 . The latches 501 on both sides are located in the placement groove 103 . The latching groove 104 is provided on one side of the placement groove 103 .

[0032] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A lens with an adjustable rectangular spot focusing structure, characterized in that: include: A mounting box (1), a rectangular light source (2) being mounted on one side of the mounting box (1), movable frames (3) being slidably matched on both sides of the interior of the mounting box (1), and convex lenses (6) and concave lenses (7) being mounted in the movable frames (3) on both sides respectively; An adjustment component is arranged in the installation box (1), and the adjustment component comprises a threaded rod (4) rotatably fitted on both sides of the side of the installation box (1), and an adjustment cylinder (5) slidably fitted on one end of the threaded rod (4), and a bayonet (501) is arranged on both sides of the adjustment cylinder (5), and a plurality of bayonet grooves (104) are opened on both sides of the side of the installation box (1), and the bayonet pins (501) are located in the bayonet grooves (104), and the adjustment component is matched with the moving frame (3).

2. The lens with an adjustable rectangular spot focusing structure according to claim 1, characterized in that: Both sides of the side of the installation box (1) are provided with sliding grooves (101), and one side of the movable frame (3) is provided with a sliding block (301), and the sliding block (301) is slidably fitted in the sliding groove (101).

3. The lens with an adjustable rectangular spot focusing structure according to claim 2, characterized in that: A threaded hole (302) is provided on one side of the slider (301), and the threaded rod (4) is threadedly engaged in the threaded hole (302). Through holes (102) are provided on both sides of the side of the installation box (1), and the threaded rod (4) is rotated to engage in the through holes (102).

4. The lens with an adjustable rectangular spot focusing structure according to claim 1, characterized in that: A limiting disk (401) is installed at one end of the threaded rod (4), and an adjusting disk (504) is installed at the other side of the adjusting cylinder (5). The limiting disk (401) is slidably fitted in the adjusting cylinder (5) and is away from one side of the adjusting disk (504). A spring (503) is installed in the adjusting cylinder (5), and one end of the spring (503) is in contact with one side of the limiting disk (401).

5. The lens with an adjustable rectangular spot focusing structure according to claim 4, characterized in that: The threaded rod (4) is provided with limiting grooves (402) on opposite sides thereof, and limiting blocks (502) are installed on opposite sides thereof inside the adjusting cylinder (5), and the limiting blocks (502) are slidably fitted in the limiting grooves (402).

6. The lens with an adjustable rectangular spot focusing structure according to claim 1, characterized in that: The installation box (1) has two opposite sides with rotation grooves (105) formed thereon. The adjusting tube (5) rotates to fit into the rotation groove (105). A placement groove (103) is formed in the rotation groove (105). The latch pins (501) on both sides are located in the placement groove (103). The latch groove (104) is formed on one side of the placement groove (103).

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