Beam shaping device for a blue laser

Abstract

This utility model relates to the field of beam shaping device technology and discloses a beam shaping device for a blue laser, including a mounting housing. A movable plate is movably engaged on one side of the mounting housing. The beam shaping device for the blue laser allows the insertion block installed at the front end of the top plate to be pulled out of the slot by pushing the top plate outward. When the top plate moves outward, the locking block is also pulled out of the slot, thus removing the top plate. After the top plate is pulled out, the restriction of the movable plate is removed, and the movable plate installed on one side of the mounting housing is opened. Then, by pressing the pressing block inward, the pressing block applies pressure to the spring, causing the spring to contract. When the spring contracts, the pushing block installed at the inner end of the connecting plate pushes the locking end in the positioning block out of the positioning groove, thereby removing the lens barrel. This facilitates the maintenance of the lens in the shaping device by the operator.

Description

Technical Field

[0001] This utility model relates to the field of beam shaping device technology, specifically a beam shaping device for a blue laser. Background Technology

[0002] Lasers have many advantages and a wide range of applications. They are developing rapidly and are still in their infancy. Shaping and combining several semiconductor laser chips into a bundle, coupling it into an optical fiber, and then outputting it is an important way to apply semiconductor lasers.

[0003] Traditional laser emitter beam shaping devices are not convenient for maintaining the lenses inside the device, and tools are needed to open the device when maintenance is required. Therefore, opening traditional beam shaping devices is cumbersome for operators and cannot be done quickly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a beam shaping device for a blue laser, which solves the problem mentioned in the background that traditional laser emitter beam shaping devices are inconvenient for maintaining the lenses inside the device, and tools are required to open the device when maintenance is needed. This makes it cumbersome for operators to open traditional beam shaping devices quickly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a beam shaping device for a blue laser, comprising a mounting housing, a movable plate movably engaged with one side end face of the mounting housing, slots formed on the inner wall of the movable plate and one side inner wall of the mounting housing, a slot formed on the front end surface of the mounting housing, a top plate movably engaged with the top of the mounting housing, an insert block fixedly mounted on the front end surface of the top plate, and locking blocks fixedly mounted on both side end faces of the top plate, a mounting groove formed on the front end surface of the mounting housing, and two opposing positioning blocks for the beam shaping device of the blue laser fixedly mounted on the front end surface of the mounting housing, the top of the positioning blocks being triangular and the outer end being vertical.

[0006] Using the above technical solution, by pushing the top plate outward, the insert block installed at the front end of the top plate is pulled out of the slot, and when the top plate moves outward, the locking block is also pulled out of the slot, thereby allowing the top plate to be disassembled. Since the movable plate installed on one side of the mounting housing is fixed by the top plate, the restriction of the movable plate is removed after the top plate is pulled out, so the movable plate installed on one side of the mounting housing can be opened, allowing the staff to maintain and replace the lenses installed inside the mounting housing.

[0007] Preferably, a mounting block is provided in the mounting groove, a lens barrel is fixedly mounted on the outer end surface of the mounting block, and two opposing positioning grooves are formed on the inner end surface of the lens barrel.

[0008] By adopting the above technical solution, the two positioning grooves opened at the inner end of the lens barrel facilitate the insertion of the positioning block into them to fix the lens barrel.

[0009] Preferably, two springs are fixedly installed in the positioning groove, a connecting plate is fixedly installed on the outer end surface of the springs, a pushing block is fixedly installed on the inner end surface of the connecting plate, a pressing block is fixedly installed on the outer end surface of the connecting plate, a threaded post is provided on the front end surface of the lens barrel, a connecting cover is installed on the threaded post in a threaded rotation, a focusing lens is provided inside the lens barrel, and a glass plate is provided inside the connecting cover.

[0010] Using the above technical solution, by pressing the pressing block inward, the pressing block applies pressure to the spring, thereby causing the spring to contract. When the spring contracts, the pushing block installed at the inner end of the connecting plate will push the locking end in the positioning block out of the positioning groove, thereby allowing the lens barrel to be removed, which facilitates the maintenance of the lens in the orthokeratology device by the staff.

[0011] Preferably, the upper surface of the top plate is provided with a plurality of protrusions, and the plurality of protrusions are arranged in a linear array on the outer surface of the top plate, and the top plate is provided with a plurality of heat dissipation holes arranged in a linear array.

[0012] By adopting the above technical solution, the protrusions on the top plate can increase the friction of the workers' hands, making it easier for the workers to push the top plate out. Then, the heat dissipation holes on the top plate can help the workers to dissipate the heat inside the housing.

[0013] Preferably, a laser emitter is provided on both the rear end surface and one side end face of the mounting housing, a polarizer is provided inside the mounting housing, a half-wave plate is provided at the front end of the polarizer inside the mounting housing, a negative cylindrical lens is provided at the front end of the half-wave plate inside the mounting housing, and a positive cylindrical lens is provided at the front end of the negative cylindrical lens inside the mounting housing.

[0014] Using the above technical solution, a laser is emitted by a laser emitter. The laser emitted by the laser emitter on one side of the housing is then sent to a half-wave plate through a polarizer. At the same time, the laser emitted by the laser emitter mounted on the rear surface of the housing also enters the half-wave plate through a polarizer, thus combining the two laser beams. After the two laser beams are combined, the combined laser beam is expanded by a negative cylindrical lens. After the combined beam is expanded by the negative cylindrical lens, it enters a positive cylindrical lens for collimation. The beam is shaped as it passes through the negative and positive cylindrical lenses.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The beam shaping device of this blue laser uses a top plate that is pushed outward to pull out the insert block installed at the front end of the top plate from the slot. When the top plate moves outward, the locking block is also pulled out from the slot, thus removing the top plate. After the top plate is pulled out, the restriction of the movable plate is removed, so the movable plate installed on one end face of the housing is opened. Then, by pressing the pressing block inward, the pressing block applies pressure to the spring, causing the spring to contract. When the spring contracts, the pushing block installed at the inner end of the connecting plate pushes the locking end in the positioning block out of the positioning groove, thus removing the lens barrel. This makes it easier for staff to maintain the lens in the shaping device.

[0017] 2. The beam shaping device of this blue laser emits a laser beam through a laser emitter. The laser beam emitted by the laser emitter on one side of the housing is then fed onto a half-wave plate via a polarizer. Simultaneously, the laser beam emitted by the laser emitter mounted on the rear surface of the housing also passes through a polarizer and enters the half-wave plate, thus combining the two laser beams. After the two laser beams are combined, the combined laser beam is expanded by a negative cylindrical lens. After the combined beam is expanded by the negative cylindrical lens, it enters a positive cylindrical lens for collimation. The beam shaping operation is performed as the combined beam passes through the negative and positive cylindrical lenses. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the beam shaping device for the blue laser of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the beam shaping device for the blue laser of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the beam shaping device for the blue laser of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the lens barrel of this utility model.

[0022] In the diagram: 1. Mounting housing; 2. Movable plate; 3. Slot; 4. Slot; 5. Top plate; 6. Insert block; 7. Locking block; 8. Mounting groove; 9. Positioning block; 10. Mounting block; 11. Lens barrel; 12. Positioning groove; 13. Spring; 14. Connecting plate; 15. Pushing block; 16. Pressing block; 17. Threaded post; 18. Connecting cover; 19. Focusing lens; 20. Glass plate; 21. Protrusion; 22. Heat dissipation hole; 23. Laser emitter; 24. Polarizer; 25. Half-wave plate; 26. Negative cylindrical lens; 27. Positive cylindrical lens. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Referring to Figures 1-4, a beam shaping device for a blue laser is described. A movable plate 2 is movably engaged with one end face of the mounting housing 1. Slots 3 are formed on the inner wall of the movable plate 2 and on one side inner wall of the mounting housing 1. A slot 4 is formed on the front surface of the mounting housing 1. A top plate 5 is movably engaged with the top of the mounting housing 1. An insert block 6 is fixedly installed on the front surface of the top plate 5. Locking blocks 7 are fixedly installed on both end faces of the top plate 5. A mounting groove 8 is formed on the front surface of the mounting housing 1. Two opposing positioning blocks 9 of the blue laser beam shaping device are fixedly installed on the front surface of the mounting housing 1. The top of each positioning block 9 is triangular, and its outer end is vertical. Mounting blocks are disposed within the mounting groove 8. 10. A lens barrel 11 is fixedly mounted on the outer end surface of the mounting block 10. Two opposing positioning grooves 12 are opened on the inner end surface of the lens barrel 11. Two springs 13 are fixedly mounted in the positioning grooves 12. A connecting plate 14 is fixedly mounted on the outer end surface of the springs 13. A pushing block 15 is fixedly mounted on the inner end surface of the connecting plate 14. A pressing block 16 is fixedly mounted on the outer end surface of the connecting plate 14. A threaded post 17 is provided on the front end surface of the lens barrel 11. A connecting cover 18 is threadedly mounted on the threaded post 17. A plurality of protrusions 21 are provided on the upper surface of the top plate 5. The plurality of protrusions 21 are arranged in a linear array on the outer surface of the top plate 5. A plurality of heat dissipation holes 22 are arranged in a linear array on the top plate 5.

[0026] Working principle: When maintenance is required on the lenses inside the photovoltaic shaping device, the operator can push the top plate 5 outwards, causing the insert 6 installed at the front end of the top plate 5 to be pulled out of the slot 4. As the top plate 5 moves outwards, the locking block 7 will also be pulled out of the slot 3, thus removing the top plate 5. Since the movable plate 2 installed on one side of the mounting housing 1 is fixed by the top plate 5, the restriction on the movable plate 2 is removed after the top plate 5 is pulled out. Therefore, the movable plate 2 installed on one side of the mounting housing 1 will be opened, allowing the operator to maintain and replace the lenses installed inside the mounting housing 1. Then, the operator needs to inspect the lenses inside the lens barrel 11. During maintenance, the operator can press the pressing block 16 inward to apply pressure to the spring 13, causing the spring 13 to contract. When the spring 13 contracts, the pushing block 15 installed at the inner end of the connecting plate 14 will push the locking end in the positioning block 9 out of the positioning groove 12, thereby removing the restriction of the lens barrel 11 and allowing the operator to remove the lens barrel 11 for maintenance. The protrusion 21 on the top plate 5 increases the friction of the operator's hand, making it easier for the operator to push the top plate 5 out. The heat dissipation holes 22 on the top plate 5 allow the operator to dissipate the heat inside the mounting housing 1.

[0027] Example 2:

[0028] Referring to Figures 1-4, a beam shaping device for a blue laser is described. A focusing lens 19 is disposed within the lens barrel 11. A glass plate 20 is disposed within the connecting cover 18. Laser emitters 23 are disposed on both the rear end surface and one side end surface within the mounting housing 1. A polarizer 24 is disposed within the mounting housing 1. A half-wave plate 25 is disposed at the front end of the polarizer 24 within the mounting housing 1. A negative cylindrical lens 26 is disposed at the front end of the half-wave plate 25 within the mounting housing 1. A positive cylindrical lens 27 is disposed at the front end of the negative cylindrical lens 26 within the mounting housing 1.

[0029] Working principle: A laser is emitted by laser emitter 23. The laser emitted by laser emitter 23 on one side of the mounting housing 1 is sent to half-wave plate 25 by polarizer 24. At the same time, the laser emitted by laser emitter 23 on the rear surface of the mounting housing 1 is also sent to half-wave plate 25 by polarizer 24, thereby combining the two laser beams. After the two laser beams are combined, the combined laser beam is expanded by negative cylindrical lens 26. After the combined beam is expanded by negative cylindrical lens 26, it enters positive cylindrical lens 27 for collimation. The combined beam is shaped by passing through negative cylindrical lens 26 and positive cylindrical lens 27. After the beam is shaped, it is focused by focusing lens 19 in lens barrel 11. Finally, the shaped laser beam is emitted by glass plate 20.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A beam shaping device for a blue laser, comprising a mounting housing (1), characterized in that: A movable plate (2) is movably engaged on one side end face of the mounting housing (1). Slots (3) are opened on the inner wall of the movable plate (2) and on one side inner wall of the mounting housing (1). A slot (4) is opened on the front end surface of the mounting housing (1). A top plate (5) is movably engaged at the top end of the mounting housing (1). An insert (6) is fixedly installed on the front end surface of the top plate (5). A locking block (7) is fixedly installed on both sides end face of the top plate (5). An installation groove (8) is opened on the front end surface of the mounting housing (1). Two opposing positioning blocks (9) of the beam shaping device of the blue laser are fixedly installed on the front end surface of the mounting housing (1). The top of the positioning block (9) is triangular and the outer end is vertical.

2. The beam shaping device for a blue laser according to claim 1, characterized in that: An installation block (10) is provided in the installation groove (8). A lens barrel (11) is fixedly installed on the outer end surface of the installation block (10). Two positioning grooves (12) are provided on the inner end surface of the lens barrel (11) and are arranged opposite each other.

3. The beam shaping device for a blue laser according to claim 2, characterized in that: Two springs (13) are fixedly installed in the positioning groove (12). A connecting plate (14) is fixedly installed on the outer end surface of the springs (13). A pushing block (15) is fixedly installed on the inner end surface of the connecting plate (14). A pressing block (16) is fixedly installed on the outer end surface of the connecting plate (14). A threaded post (17) is provided on the front end surface of the lens barrel (11). A connecting cover (18) is installed on the threaded post (17) in a threaded rotation. A focusing lens (19) is provided in the lens barrel (11). A glass plate (20) is provided in the connecting cover (18).

4. The beam shaping device for a blue laser according to claim 1, characterized in that: The top plate (5) has a plurality of protrusions (21) on its upper surface, and the plurality of protrusions (21) are arranged in a linear array on the outer surface of the top plate (5). The top plate (5) has a plurality of heat dissipation holes (22) arranged in a linear array.

5. The beam shaping device for a blue laser according to claim 1, characterized in that: Laser emitters (23) are provided on both the rear end surface and one side end face of the mounting housing (1). A polarizer (24) is provided inside the mounting housing (1). A half-wave plate (25) is provided at the front end of the polarizer (24) inside the mounting housing (1). A negative cylindrical lens (26) is provided at the front end of the half-wave plate (25) inside the mounting housing (1). A positive cylindrical lens (27) is provided at the front end of the negative cylindrical lens (26) inside the mounting housing.

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