A diode laser emitting device

Abstract

The utility model relates to the field of laser emission, and discloses a diode laser emission device, which can confirm the direction of the laser with the naked eye. The utility model includes a laser generator, a beam guide and a light output sheet. The laser generator has a laser control unit and a laser emission unit. The laser emission unit is provided with a plurality of high-power laser generation modules and a low-power laser generation module; the light inlet of the beam guide is arranged on the output light path of the laser emission unit; the light output sheet is provided with a light-transmitting port, and the light-transmitting port is arranged at the light outlet of the beam guide. The utility model can switch the output laser power. When the direction of the laser needs to be confirmed by the naked eye, a low-power laser can be emitted. After the confirmation is completed, the output of a high-power laser can be switched for processing, which effectively improves the convenience, safety and accuracy of laser processing; at the same time, multiple high-power laser generation modules are provided, which can further improve the laser processing effect, so as to improve the processing speed and processing quality.

Description

Technical Field

[0001] The utility model relates to the field of laser emission, in particular to a diode laser emission device. Background Art

[0002] Currently, refer to Figure 1 Most common diode lasers use single diode lasers. When using a single diode, the laser power emitted by the diode is too high, which can cause damage to the eyes. It is impossible to configure a guide laser that can be confirmed by the naked eye, and the irradiation direction of the laser cannot be confirmed before processing, which affects the processing efficiency and quality. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a diode laser emitting device, which can confirm the direction of the laser with the naked eye.

[0004] According to the diode laser emitting device of the embodiment of the utility model, it includes a laser generator, a beam guide and a light output plate, the laser generator has a laser control unit and a laser emitting unit, the laser emitting unit is provided with a plurality of high-power laser generating modules and one low-power laser generating module, the laser control unit is used to control the laser emitting unit to emit high-power laser or low-power laser; the beam guide is used to transmit laser, the light inlet of the beam guide is arranged on the output light path of the laser emitting unit; the light output plate is provided with a light-transmitting port, and the light-transmitting port is arranged at the light outlet of the beam guide.

[0005] According to some embodiments of the present invention, the laser emitting unit is further provided with a reflection sensor, and the reflection sensor is used to detect reflected laser during laser processing.

[0006] According to some embodiments of the present invention, the low-power laser generating module is disposed in the middle of the laser emitting portion.

[0007] According to some embodiments of the present invention, a plurality of the high-power laser generating modules are distributed around the center of the laser emitting portion.

[0008] According to some embodiments of the present invention, a first focusing mirror is further included, and the first focusing mirror is arranged on the output light path of the light output plate.

[0009] According to some embodiments of the present invention, the first focusing mirror and the light output sheet are connected via an optical fiber, and the optical fiber is a single-core optical fiber.

[0010] According to some embodiments of the present invention, the light beam guide is provided with a second focusing mirror, and the second focusing mirror is arranged between the light inlet and the light outlet of the light beam guide.

[0011] According to some embodiments of the present invention, a laser blocking controller is further included. The laser blocking controller is arranged between the laser emitting unit and the beam guide, and the laser blocking controller includes:

[0012] A housing, wherein the housing is provided with a guide light channel, a first end of the guide light channel is connected to the laser emitting unit, and a second end of the guide light channel is connected to a light inlet of the light beam guide;

[0013] A light-blocking sheet, provided with a through hole that can only allow the laser of the low-power laser generating module to pass through, and the light-blocking sheet is movably arranged in the housing;

[0014] A driving module, wherein a driving end of the driving module is connected to the light-blocking sheet and can drive the light-blocking sheet to move closer to or away from the laser emitting part;

[0015] When the light blocking sheet is located in the guide light channel, the through hole faces the low-power laser generating module.

[0016] According to some embodiments of the utility model, a rotating rod is further included, wherein a first end of the rotating rod is rotatably connected to the center of the housing and is drivingly connected to the driving module; a second end of the rotating rod is fixedly connected to the light blocking sheet, and the driving module drives the rotating rod to drive the light blocking sheet to move closer to or away from the laser emitting part.

[0017] According to some embodiments of the present invention, a side of the light-blocking sheet facing the laser emitting portion is coated with an anti-laser coating or the light-blocking sheet is made of diamond.

[0018] The embodiments of the utility model have at least the following beneficial effects: by cooperating with a high-power laser generating module and a low-power laser generating module, the output laser power can be switched as needed; when the guidance of the laser needs to be confirmed by the naked eye, the laser emitting unit can emit a low-power laser; after the confirmation is completed, the output of a high-power laser can be switched for processing, thereby effectively improving the convenience, safety and accuracy of laser processing; and at the same time, multiple high-power laser generating modules are provided, which can further improve the laser processing effect, so as to improve the processing speed and processing quality.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 A schematic diagram of a laser processing device in the prior art;

[0022] Figure 2 This is a schematic diagram of the structure of a diode laser emitting device according to an embodiment of the utility model;

[0023] Figure 3 A partial structural schematic diagram of a diode laser emitting device according to another embodiment of the utility model;

[0024] Figure 4 for Figure 3 A schematic diagram showing the working principle state 1 of the laser blocking controller (when the light blocking sheet is away from the laser emitting part);

[0025] Figure 5 for Figure 3 A schematic diagram of the working principle state 2 of the laser blocking controller (when the light blocking sheet blocks the laser emitting part) is shown.

[0026] Reference numerals:

[0027] Label name Label name 100 Laser Generator 310 Light port 110 Laser control unit 400 First focusing mirror 120 Laser emission unit 410 optical fiber 121 High power laser generator module 500 Laser blocking controller 122 Low power laser generator module 510 shell 123 Reflection sensor 520 Light blocking film 200 Beam guide 530 Driver module 210 Second focusing mirror 540 Rotating rod 300 Light film DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0029] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, top, bottom, etc. used in the present invention are only relative to the relative positional relationship of the various components of the present invention in the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, when a feature is referred to as being "electrically connected" or "electrically connected" to another feature, the two features may be directly connected via pins, or connected via cables, or connected via wireless transmission. The specific electrical connection method is a common method for those skilled in the art, and those skilled in the art can achieve the connection as needed.

[0031] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention. The term "and / or" used herein includes any combination of one or more related listed items.

[0032] It should be understood that, although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0033] Reference Figure 2 According to the embodiment of the utility model, the diode laser emitting device includes a laser generator 100, a beam guide 200 and a light output plate 300. The laser generator 100 has a laser control unit 110 and a laser emitting unit 120. The laser emitting unit 120 is provided with a plurality of high-power laser generating modules 121 and a low-power laser generating module 122. The laser control unit 110 is used to control the laser emitting unit 120 to emit high-power laser or low-power laser. The beam guide 200 is used to transmit laser light. The light inlet of the beam guide 200 is arranged on the output light path of the laser emitting unit 120. The light output plate 300 is provided with a light-transmitting port 310, and the light-transmitting port 310 is arranged at the light outlet of the beam guide 200.

[0034] In conjunction with multiple high-power laser generating modules 121 and one low-power laser generating module 122, before laser processing, the laser control unit 110 can first control the laser emitting unit 120 to output a low-power laser. After the laser guide and the laser processing position are confirmed by the naked eye, the laser control unit 110 can then control the laser emitting unit 120 to output a high-power laser, thereby effectively improving the processing efficiency and accuracy. During simultaneous processing, the high-power lasers emitted by multiple high-power laser generating modules 121 can further improve the laser processing effect, thereby improving the processing speed and processing quality.

[0035] It can be known that the high-power laser generating module 121 and the low-power laser generating module 122 can adopt semiconductor lasers (laser diodes), fiber lasers, chemical lasers, free electron lasers and other lasers with corresponding parameters according to actual processing requirements; in addition, the laser control unit 110 and the laser emitting unit 120 are electrically connected, and the laser control unit 110 is a control module structure of a conventional laser. The laser control unit 110 can be used to control the working states of the high-power laser generating module 121 and the low-power laser generating module 122. The specific structure of the laser control unit 110 belongs to the conventional technical means of those skilled in the art and will not be described in detail here.

[0036] Reference Figure 2 In some embodiments of the present invention, the laser emitting unit 120 is further provided with a reflection sensor 123, which is used to detect the reflected laser during laser processing. By using the reflection sensor 123, the power of the laser can be detected in real time to determine whether the current laser meets the processing requirements, further improving reliability.

[0037] It is understandable that the reflective sensor 123 is a light sensor, which generally refers to a device that can sensitively sense light energy from ultraviolet light to infrared light and convert the light energy into an electrical signal.

[0038] Reference Figure 2 In some embodiments of the present invention, the low-power laser generating module 122 is disposed in the middle of the laser emitting unit 120. The low-power laser generating module 122 is disposed in the middle, which can play a role in positioning. When the beam guide 200 is installed, the low-power laser generating module 122 is used to emit laser. At this time, the position of the laser can be directly observed with the naked eye, which facilitates the installation of the beam guide 200, improves the installation efficiency and installation accuracy, and further improves the processing efficiency and processing accuracy.

[0039] Reference Figure 2 In some embodiments of the present invention, a plurality of high-power laser generating modules 121 are distributed around the center of the laser emitting unit 120. With such a distribution method, the high-power laser can be evenly distributed, and the evenly distributed laser can make the subsequent focused laser more uniform, thereby improving the laser processing accuracy.

[0040] Reference Figure 2 In some embodiments of the present invention, the number of high-power laser generating modules 121 is 7 or more. It can be known that the more high-power laser generating modules 121 there are, the better the uniformity of the laser after focusing, and the better the effect of laser processing.

[0041] Reference Figure 2In some embodiments of the present invention, a first focusing mirror 400 is further included. The first focusing mirror 400 is arranged on the output light path of the light output sheet 300. The first focusing mirror 400 can be used to focus the processing laser to increase the laser energy, thereby improving the processing effect and processing accuracy.

[0042] Reference Figure 2 In some embodiments of the present invention, two first focusing lenses 400 are provided. Providing two first focusing lenses 400 can enhance the focusing ability of light and improve the laser processing ability.

[0043] It can be understood that the focusing mirror, as the name implies, is a lens that focuses light. According to Gaussian optical theory, the power density at the focus is the highest, and the laser beam is focused into a high-density light spot or light to achieve high-precision and high-speed cutting effects. Focusing mirrors are divided into two types: transmission and reflection. Projection mirrors are generally used in transmission laser heads, and reflection mirrors are generally used in reflection laser heads.

[0044] In some embodiments of the present invention, the first focusing lens 400 is provided with two or more convex lenses.

[0045] Reference Figure 2 In some embodiments of the present invention, the first focusing lens 400 and the light output sheet 300 are connected by an optical fiber 410, and the optical fiber 410 is a single-core optical fiber. The use of a single-core optical fiber can not only transmit laser light in a directional manner, but also reduce the loss of laser light during transmission.

[0046] Reference Figure 2 In some embodiments of the present invention, the beam guide 200 is provided with a second focusing mirror 210, and the second focusing mirror 210 is provided between the light inlet and the light outlet of the beam guide 200. The second focusing mirror 210 can be used to focus the laser so as to concentrate the energy of the laser, reduce the loss of the laser during the transmission process, and thus improve the reliability of the laser transmission.

[0047] Reference Figure 2 , in conjunction with the laser generator 100, the beam guide 200, the light output sheet 300, the single-core optical fiber and the first focusing mirror 400, the second focusing mirror 210 can be used. When emitting multiple beams of high-power lasers, they can be transmitted in a limited direction after passing through the beam guide 200. At the same time, in conjunction with the second focusing mirror 210, the laser energy can be concentrated onto a smaller line to increase the power density of the laser. Then, through the light output sheet 300 and the single-core optical fiber, the multi-beam mode is mixed into a single beam mode. The single-core optical fiber performs beam shaping, and after the laser is focused by the first focusing mirror 400, the uniformity of the laser beam is improved.

[0048] Reference Figures 3 to 5In some embodiments of the utility model, a laser blocking controller 500 is further included. The laser blocking controller 500 is arranged between the laser emitting unit 120 and the light beam guide 200. The laser blocking controller 500 includes a housing 510, a light blocking sheet 520 and a driving module 530. The housing 510 is provided with a guide light channel, a first end of the guide light channel is connected to the laser emitting unit 120, and a second end of the guide light channel is connected to the light inlet of the light beam guide 200. The light blocking sheet 520 is provided with a through hole that can only allow the laser of the low-power laser generating module 122 to pass through, and the light blocking sheet 520 is movably arranged in the housing 510. The driving end of the driving module 530 is connected to the light blocking sheet 520, and can drive the light blocking sheet 520 to approach or move away from the laser emitting unit 120. When the light blocking sheet 520 is located in the guide light channel, the through hole is directly opposite to the low-power laser generating module 122.

[0049] The driving module 530 can drive the light blocking plate 520 to be close to or away from the laser emitting unit 120. When the light blocking plate 520 is located directly in front of the laser emitting direction of the laser emitting unit 120, since the light blocking plate 520 has only one through hole that can allow the low-power laser of the laser emitting unit 120 to pass through, it can play a role in blocking high-power laser. When it is determined that a high-power laser is needed, the light blocking plate 520 can be controlled to be away from the laser emitting unit 120 by controlling the driving module 530.

[0050] With the light blocking sheet 520, when the beam guide 200 is installed, the light blocking sheet 520 can be placed directly opposite to the laser emitting portion. Figure 5 In the state, the light blocking sheet 520 blocks the high-power laser generating module 121, ensuring that only low-power laser can be emitted from the laser emitting unit 120. In the installation process or other times when the laser needs to be observed with the naked eye, if there is an erroneous operation or other accident, causing the laser emitting unit 120 to emit a high-power laser, at this time, since the light blocking sheet 520 blocks the laser, it can avoid causing damage to the human eye, effectively improving safety and reliability. When it is determined that the high-power laser generating module 121 needs to work, the light blocking sheet 520 can be moved away and returned to the state. Figure 4 state, at this time, the laser emitting unit 120 can emit a high-power laser.

[0051] It can be known that the driving module 530 can be fixed on the housing 510, and the driving module 530 can be a mode of cooperating with a motor and a transmission structure or a mode of manually operating the transmission structure. The specific structure belongs to the technology commonly used by technical personnel in this field, so it will not be discussed in detail here.

[0052] Reference Figure 4 and Figure 5In some embodiments of the present invention, a rotating rod 540 is further included. The first end of the rotating rod 540 is rotatably connected to the center of the housing 510 and is drivingly connected to the driving module 530. The second end of the rotating rod 540 is fixedly connected to the light blocking sheet 520. The driving module 530 drives the rotating rod 540 to drive the light blocking sheet 520 to move closer to or away from the laser emitting unit 120. With the rotating rod 540, the blocking sheet can be moved in a directional manner, which improves convenience. Specifically, in this embodiment, the driving module 530 drives one end of the rotating rod 540 to rotate around the center of the housing 510, and can rotate forward or reverse, such as Figure 4 and Figure 5 In the state, one end of the rotating rod 540 rotates about the center of the housing 540, and the other end of the rotating rod 540 moves back and forth in a circular arc with the light blocking sheet 520, so as to be close to or away from the laser emitting unit 120.

[0053] In some embodiments of the present invention, the light blocking sheet 520 is coated with an anti-laser coating on one side facing the laser emitting unit 120 or the light blocking sheet 520 is made of diamond. The use of anti-laser coating or diamond material can effectively block high-power lasers, while preventing the blocking sheet from being damaged by high-power lasers, thereby increasing the service life of the blocking sheet and improving the effect of blocking high-power lasers. It is known that the anti-laser coating can be one of a ceramic material or a silicone resin.

[0054] According to the embodiments of the utility model, by such a configuration, at least the following effects can be achieved. In conjunction with the high-power laser generating module 121 and the low-power laser generating module 122, the output laser power can be switched as needed. When the guidance of the laser needs to be confirmed by the naked eye, the laser emitting unit 120 can emit a low-power laser. After the confirmation is completed, the output of the high-power laser can be switched for processing, which effectively improves the convenience, safety and accuracy of the laser processing. At the same time, multiple high-power laser generating modules 121 are provided, which can further improve the laser processing effect, so as to improve the processing speed and processing quality.

[0055] The above is only a preferred embodiment of the utility model. The utility model is not limited to the above implementation. As long as the technical effect of the utility model is achieved by the same means, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the scope of protection of the present disclosure. All should belong to the protection scope of the utility model. Within the protection scope of the utility model, its technical solution and / or implementation method can have various modifications and changes.

Claims

1. A diode laser emitting device, characterized in that: include: A laser generator (100) comprises a laser control unit (110) and a laser emitting unit (120), wherein the laser emitting unit (120) is provided with a plurality of high-power laser generating modules (121) and a low-power laser generating module (122), and the laser control unit (110) is used to control the laser emitting unit (120) to emit high-power laser or low-power laser; A light beam guide (200) for transmitting laser light, wherein a light inlet of the light beam guide (200) is arranged on an output light path of the laser emitting unit (120); The light output plate (300) is provided with a light transmission port (310), and the light transmission port (310) is arranged at the light output port of the light beam guide (200).

2. The diode laser emitting device according to claim 1, characterized in that: The laser emitting unit (120) is also provided with a reflection sensor (123), and the reflection sensor (123) is used to detect reflected laser light during laser processing.

3. The diode laser emitting device according to claim 1, characterized in that: The low-power laser generating module (122) is arranged in the middle of the laser emitting section (120).

4. The diode laser emitting device according to claim 1, characterized in that: The plurality of high-power laser generating modules (121) are distributed around the center of the laser emitting portion (120).

5. The diode laser emitting device according to claim 1, characterized in that: It also comprises a first focusing mirror (400), wherein the first focusing mirror (400) is arranged on the output light path of the light output plate (300).

6. The diode laser emitting device according to claim 5, characterized in that: The first focusing lens (400) and the light output plate (300) are connected via an optical fiber (410), and the optical fiber (410) is a single-core optical fiber.

7. The diode laser emitting device according to claim 1, characterized in that: The light beam guide (200) is provided with a second focusing mirror (210), and the second focusing mirror (210) is arranged between a light inlet and a light outlet of the light beam guide (200).

8. The diode laser emitting device according to claim 1, characterized in that: The laser blocking controller (500) is also included. The laser blocking controller (500) is arranged between the laser emitting unit (120) and the light beam guide (200). The laser blocking controller (500) includes: A housing (510), wherein the housing (510) is provided with a guide light channel, wherein a first end of the guide light channel is connected to the laser emitting unit (120), and a second end of the guide light channel is connected to a light inlet of the light beam guide (200); A light blocking sheet (520) is provided with a through hole that can only allow the laser of the low-power laser generating module (122) to pass through, and the light blocking sheet (520) is movably arranged in the housing (510); A driving module (530), wherein a driving end of the driving module (530) is connected to the light blocking sheet (520) and is capable of driving the light blocking sheet (520) to move closer to or farther from the laser emitting unit (120); When the light blocking sheet (520) is located in the guide light channel, the through hole faces the low-power laser generating module (122).

9. The diode laser emitting device according to claim 8, characterized in that: The invention also includes a rotating rod (540), wherein a first end of the rotating rod (540) is rotatably connected to the center of the housing (510) and is drivingly connected to the driving module (530); a second end of the rotating rod (540) is fixedly connected to the light blocking sheet (520), and the driving module (530) drives the rotating rod (540) to drive the light blocking sheet (520) to move closer to or away from the laser emitting unit (120).

10. The diode laser emitting device according to claim 8, characterized in that: A surface of the light-blocking sheet (520) facing the laser emitting portion (120) is coated with an anti-laser coating or the light-blocking sheet (520) is made of diamond.

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