Pump laser transmitter, laser circuit and laser machine

Abstract

The invention provides a pumping laser transmitter, a laser circuit and a laser machine, and particularly relates to the technical field of laser machines. The pumping laser module is arranged in the sealing shell; the pumping laser module is composed of a laser generating assembly, a laser transmission assembly, a light beam adjusting assembly, an objective lens, an imaging transmission module and a light hole structure. According to the pumping laser transmitter, the laser circuit and the laser machine, through a combination mode of instantaneous high-voltage triggering of the pumping lamp tube and precise turning off of the main capacitor by the MOSFET tube, a traditional long-term preheating mode of a xenon lamp is abandoned, the pumping lamp tube is only temporarily activated when laser is needed, meanwhile, complete release of energy of the main capacitor is avoided by utilizing the MOSFET tube, invalid energy consumption and equipment heating are greatly reduced, and the service life of the laser is prolonged. The laser machine can work stably without a complex water cooling system, and the core problems that preheating is time-consuming, energy is wasted and heating is serious in a traditional laser machine are solved fundamentally.

Description

TECHNICAL FIELD

[0001] The application provides a pumping laser emitter, a laser line and a laser machine, and particularly relates to the technical field of laser machines. BACKGROUND

[0002] In the field of repairing liquid crystal screens of electronic products, especially in the field of repairing mobile phone screens, laser is widely used for repair; laser repair can precisely act on the repair area (such as repairing wire harness welding points and removing local defects) due to its non-contact and high-precision processing characteristics, thereby avoiding secondary damage; at the same time, laser repair can locally repair and replace the entire screen, thereby greatly reducing the repair cost; laser repair can also adapt to the fine needs of screens of different sizes, thereby improving the repair yield and efficiency, reducing electronic waste, and having economic value and environmental protection significance, and is the core technical direction of the current precise repair of mobile phone screens.

[0003] However, the pumping laser emitter and the matching line of the existing laser machine have the following defects: As shown in the accompanying drawings of the specification Figures 10 to 11 ), the pumping laser machine is a product of the well-known HOYA brand; the pumping laser machine mainly comprises: D1, a pumping laser machine main body; D3, a laser emission structure; D11, a workbench; D12, a machine head; and D13, a display. Specifically, the pumping source of the pumping laser machine is mainly a xenon lamp, which needs to be preheated for a long time and has insufficient energy utilization rate, and the xenon lamp generates a large amount of heat and must rely on a complex water cooling system (as shown in the accompanying drawings of the specification Figure 11 , a water cooling inlet is arranged on the back of the laser emission structure; this mode has the risk of water leakage and short circuit), and the service life of the xenon lamp is also greatly shortened due to continuous loss.

[0004] In terms of energy control, the driving circuit voltage of the existing pumping laser machine is high, and a thyristor (which needs to discharge the capacitor energy, and the waste is serious) or a high-cost IGBT (which has a slow shutdown) is used for discharging; at the same time, the Q-switching circuit still uses the scheme of “inductive voltage boosting + avalanche diode”, which leads to large size and poor stability of the overall device.

[0005] Therefore, the application provides a pumping laser emitter, a laser line and a laser machine to make up for the shortcomings of the prior art. SUMMARY

[0006] In view of the defects of the prior art, the application provides a pumping laser emitter, a laser line and a laser machine, which can effectively solve the related technical problems in the background art.

[0007] To achieve the above purpose, the application is implemented by the following technical solutions: The application discloses a kind of pumped laser emitter, laser line and laser machine, including sealed shell;Further include, set in the pumped laser module of sealed shell interior;Pumped laser module is by laser generation component, laser transmission component, beam adjusting component and objective lens, imaging transmission module, light-transmitting hole structure composition;Wherein, objective lens is fixedly installed in the bottom of one side of sealed shell and located below laser transmission component;Imaging transmission module is fixedly set in the other side of the bottom of sealed shell, and with sealed shell interior communication;Beam adjusting component is located between laser generation component and laser transmission component, for adjusting laser spot size;Laser generation component includes laser Q-switcher and laser generator, and the structure of laser Q-switcher is based on super-speed MOS tube and iron powder microcrystalline magnetic ring;Laser generator is by the light beam in and out end of both ends end, pump lamp installed in its interior, surface frosted rod light guide body and low-voltage large-capacity main capacitor composition;Pump lamp is configured with instantaneous high-voltage pulse trigger structure, for generating initial arc, and laser generator is also configured with voltage-resistant MOSFET tube as discharge control switch;Laser transmission component also includes specific wavelength filter lens, for filtering invalid stray light;Laser beam is generated and emitted by laser generation component;Instantaneous high-voltage pulse trigger structure applies instantaneous high-voltage pulse to pump lamp to generate initial arc, and the low-voltage large-capacity main capacitor is discharged quickly during arc persistence, and pump lamp generates light beam, and the light beam is sequentially passed through filter lens and light-transmitting hole structure after being axially regularized by surface frosted rod light guide body;Part of light beam enters objective lens by first laser line formed by laser transmission component and light-transmitting hole structure, and laser is shot on product surface by objective lens;Another part of light beam enters imaging transmission module by second laser line formed by laser transmission component to image;MOSFET tube is turned off when laser intensity reaches required value, and main capacitor continues to discharge.

[0008] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects: The pumped laser emitter, laser line and laser machine adopt the combination mode of "instantaneous high-voltage trigger pump lamp and MOSFET tube accurately turning off main capacitor", abandon the traditional xenon lamp long-term preheating mode, and only activate the pump lamp for a short time when laser is needed. Meanwhile, the MOSFET tube is used to avoid complete release of main capacitor energy, greatly reduce invalid energy consumption and equipment heating, and the laser machine can work stably without complex water cooling system, thereby fundamentally solving the core problems of traditional laser machine, such as preheating time consumption, energy waste and serious heating. Compared with the traditional laser machine, the laser machine has smaller size by using low-voltage main capacitor, miniaturized MOSFET tube, super-speed MOS tube and iron powder microcrystalline magnetic ring Q-switching structure. By means of double motors and double-direction swing shutter, the long and wide dimensions of the light spot can be independently adjusted, the light spot distortion can be avoided by cooperating with the flower-shaped light transmission adjusting hole, the defects of low manual adjustment efficiency in the prior art are solved, and the fine processing requirements of mobile phone screen "narrow gap" and "small soldering point" are met. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a front perspective structure diagram of the application; Figure 2 It is a partial perspective structure diagram of the related components in the head of the application; Figure 3 It is a partial perspective structure diagram of the related components in the sealing shell of the application; Figure 4 It is a partial perspective structure diagram of the related components at the laser generating assembly and laser transmission assembly in the application; Figure 5 It is a front view structure diagram of the related components at the laser generating assembly and laser transmission assembly in the application; Figure 6 It is a partial bottom view structure diagram of the laser generating assembly and laser transmission assembly in the application; Figure 7 It is a partial perspective structure diagram of the related components at the light beam adjusting assembly in the application; Figure 8 It is a partial bottom view structure diagram of the related components at the light beam adjusting assembly in the application; Figure 9 It is a partial exploded perspective structure diagram of the related components at the light beam adjusting assembly in the application; Figure 10 It is a perspective structure diagram of the existing technology of the pump laser machine; Figure 11 It is a perspective structure diagram of the related components of the laser emission structure part in the existing technology of the pump laser machine; Figure 12 It is another perspective structure diagram of the related components of the laser emission structure part in the existing technology of the pump laser machine.

[0010] The numbers in the figure respectively represent: 1, laser machine main body; 11, workbench; 12, head; 13, external display; 2, sealing shell; 3, pump laser module; 31, laser generating assembly; 311, laser Q-switcher; 312, second reflecting mirror; 313, polarizing mirror; 314, laser generator; 32. Laser transmission component; 321. Light transmission aperture; 322. First reflecting mirror; 323. First oblique semi-reflecting mirror; 324. Second oblique semi-reflecting mirror; 325. Polarizing mirror; 33. Beam adjustment assembly; 331. Positioning plate; 332. Limiting partition; 333. Drive motor; 334. Eccentric drive wheel; 335. First moving part; 336. Second moving part; 337. Bidirectional swinging part; 4. Objective lens. Detailed Implementation

[0011] The present invention will be further described below with reference to embodiments.

[0012] Example 1: like Figures 1 to 6 As shown, a pumped laser emitter and laser circuitry include a sealed housing 2; It also includes a pump laser module 3 disposed inside the sealed housing 2; The pumped laser module 3 consists of a laser generating component 31, a laser transmission component 32, a beam adjustment component 33, an objective lens 4, an imaging transmission module 5, and a light-transmitting aperture structure. The objective lens 4 is fixedly installed on the bottom side of the sealed housing 2 and located below the laser transmission assembly 32; the imaging transmission module 5 is fixedly installed on the other side of the bottom of the sealed housing 2 and communicates with the inside of the sealed housing 2. The beam adjustment component 33 is located between the laser generating component 31 and the laser transmission component 32, and is used to adjust the laser spot size. The laser generating component 31 includes a laser Q-switcher 311 and a laser generator 314. The laser Q-switcher 311 is a structure based on an ultra-high-speed MOS transistor and an iron powder microcrystalline magnetic ring. Among them, the laser Q-switcher 311 can store a portion of light after it is injected, and when a high voltage is applied instantaneously to its two ends, its properties change, and the light can be released.

[0013] The laser generator 314 consists of beam inlet and outlet ends at both ends, pump lamps installed inside, a rod-shaped light guide with a frosted surface, and a low-voltage, high-capacity main capacitor. Note: The operating voltage is approximately 600V.

[0014] The pump lamp inside the laser generator 314 is a "xenon lamp"; and the rod-shaped light guide is close to the "xenon lamp", the distance between them is controlled to be between 1mm, and the outer walls of the two are wrapped together with a reflective layer made of reflective material, such as a bright metal layer or white ceramic. The effect is that when the "xenon lamp" produces an electric arc, the reflective effect of the bright metal or white ceramic is used to reflect the light inside the reflective layer multiple times, so that the rod-shaped light guide reflects the light multiple times, and the light is emitted axially from both ends of the rod. On the other hand, the wavelength of the light is changed to 1050nm. At the same time, the "xenon lamp" emits light with a wavelength of 1050nm, and there is no obvious boundary between the two. The light emitted by the laser Q-switch 311 has a wavelength of 1050nm, and also has other wavelengths.

[0015] The pump lamp is configured with a transient high-voltage pulse trigger structure. When in use, the "xenon lamp" has current flowing through it to generate an initial electric arc. The specific principle is similar to the existing electric lighter electric lighter principle.

[0016] The following compares the existing technology pump laser machine: As shown in the drawings of the specification, Figures 10 to 11 The "existing technology pump laser machine" mainly includes: D1, a pump laser machine main body; D3, a laser emission structure; D11, a workbench; D12, a machine head; D13, a display; Firstly, the old Q-switch structure of "inductor coil secondary voltage + avalanche diode" in the prior art results in a large Q-switch structure, poor stability, and a flat pulse rising edge. The pump laser machine in the embodiment uses a combination of a super-speed MOS tube and a ferrite microcrystal magnetic ring to avoid the above-mentioned defects and improve the stability and response speed of the Q-switch pulse. In addition, the transient high-voltage pulse trigger structure in the embodiment includes a high-voltage pulse generator and a trigger capacitor, which can output a transient high voltage of about 8000V, and only works when laser emission is needed, without the need for long-term preheating like the xenon lamp in the prior art.

[0017] It also includes other detailed structures, but only serves as a comparative description in the embodiment, so it will not be described in detail.

[0018] The laser generator 314 is also configured with a voltage-resistant MOSFET tube as a discharge control switch. The voltage resistance range of the MOSFET tube is 700-850V. It is worth noting that the MOSFET tube is electrically connected with the main control circuit and can receive an accurate off signal, solving the problem of energy waste caused by the inability of traditional thyristors to turn off in the middle.

[0019] And in the prior art, the pump laser machine is mostly used with thyristor (current is not zero, then the continuous access, need to discharge capacitor energy to shut off, only 5% energy is useful) or IGBT (although it can be shut off, but the cost is very high and the shut-off speed is slow, there is still significant energy loss); The MOSFET tube of the embodiment can be immediately shut off when the laser intensity reaches the required value, stopping the main capacitor from continuing to discharge, avoiding invalid energy loss, and the cost is lower than IGBT.

[0020] The laser transmission assembly 32 also includes a specific wavelength filter, preferably a 1050nm infrared laser filter, for filtering out invalid light such as visible light and ultraviolet light in the wide-spectrum white light generated by the pump lamp; Compared with the stray light interference caused by not setting a dedicated filter structure in the prior art, the filter can filter out invalid components such as visible light and ultraviolet light in the wide-spectrum white light generated by the pump lamp, and only allow laser of the target wavelength to pass through.

[0021] The laser beam is generated and emitted by the laser generating assembly 31; the transient high-voltage pulse trigger structure applies a transient high-voltage pulse to the pump lamp tube to generate an initial arc, and the low-voltage large-capacity main capacitor discharges rapidly during the arc persistence to excite the pump lamp tube to generate a light beam; Notably, in this process, the discharge time of the main capacitor is strictly controlled within the millisecond window when the arc is not extinguished, avoiding the high power consumption problem of continuous discharge of traditional devices.

[0022] In the prior art, the capacitor discharge of the pump laser machine needs to continue until the voltage drops to the "minimum lighting voltage of the lamp tube" (such as 200V), and a large amount of energy is wasted and converted into heat; The precise discharge control of the embodiment can greatly reduce invalid heat generation and reduce the need for heat dissipation.

[0023] The light beam is axially regularized by the surface frosted rod-shaped light guide, and then passes through the filter and the light transmission hole structure. The surface frosted treatment allows the rod-shaped light guide to redirect the disordered light beam to axial propagation through diffuse reflection, solving the energy loss problem caused by disordered light path in the prior art.

[0024] A portion of the light beam enters the objective lens 4 through the first laser line formed by the laser transmission assembly 32 and the light transmission hole structure, and is emitted on the product surface through the objective lens 4; another portion of the light beam enters the imaging transmission module 5 through the second laser line formed by the laser transmission assembly 32 to form an image; the MOSFET tube is shut off when the laser intensity reaches the required value, stopping the main capacitor from continuing to discharge; This way greatly improves the energy utilization rate compared to the prior art, greatly reducing invalid heat generation.

[0025] Specific implementation: The laser generating assembly 31 further comprises a second reflecting mirror 312, a polarized mirror 313 and a laser generator 314, the laser Q-switch 311 is fixedly installed at one end inside the sealed shell 2, and the second reflecting mirror 312 is fixedly installed inside the sealed shell 2 and located at a side close to the laser Q-switch 311; Specifically configured: the second reflecting mirror 312 is a full reflecting mirror, which can reflect the laser energy back to the resonant cavity, reduce the energy loss, and solve the problem of energy attenuation caused by long optical path in the prior art; However, in order to reduce the size of the device, the prior art often bends the optical path through multiple reflecting mirrors, and each additional mirror causes energy loss, and the longer the optical path is, the more likely it is to be offset due to vibration; The full reflecting mirror of the embodiment can reduce the number of reflections, reduce energy superposition loss, and simplify the optical path structure.

[0026] The polarized mirror 313 is fixedly installed inside the sealed shell 2 and located at a side away from the second reflecting mirror 312, and the laser generator 314 is fixedly installed inside the sealed shell 2 and located at a side away from the second reflecting mirror 312; The laser Q-switch 311, the second reflecting mirror 312, the polarized mirror 313 and the light beam inlet and outlet are all located on the same horizontal axis; The coaxial design ensures the alignment accuracy of the optical path, and avoids the poor stability problem caused by the multiple reflecting mirrors bending the optical path in the prior art.

[0027] The laser transmission assembly 32 comprises a light transmission hole 321, a first reflecting mirror 322, a first obliquely placed half reflecting mirror 323 and a second obliquely placed half reflecting mirror 324, the light transmission hole 321 is arranged in the sealed shell 2 and located at a side close to the light beam inlet and outlet of the laser generator 314, and is coaxial with the light beam inlet and outlet, so that the light beam can pass through; Specifically, the visible light is blocked by the filter mirror, and the 1050nm wavelength infrared pulse laser passes through the filter mirror.

[0028] The inside of the sealed shell 2 is provided with a light beam transmission space, a first reflecting mirror 322 is fixedly installed above the light beam transmission space, and the horizontal axis of the mirror surface of the first reflecting mirror 322 is collinear with the horizontal axis of the light transmission hole 321; a first obliquely arranged half reflecting mirror 323 and a second obliquely arranged half reflecting mirror 324 are fixedly installed in the light beam transmission space and located directly below the first reflecting mirror 322; the first obliquely arranged half reflecting mirror 323 and the second obliquely arranged half reflecting mirror 324 are oppositely inclined; wherein the first obliquely arranged half reflecting mirror 323 is located directly above the objective lens 4; Further, the angle of the first obliquely arranged half reflecting mirror 323 and the second obliquely arranged half reflecting mirror 324 oppositely inclined is 45°. Compared with the light path design of multiple reflections in the prior art, the angle design greatly shortens the optical path and improves the system stability.

[0029] Further, a polarizing mirror 325 is fixedly installed in the light beam transmission space and on the side of the first obliquely arranged half reflecting mirror 323 away from the second obliquely arranged half reflecting mirror 324, for polarizing the first obliquely arranged half reflecting mirror 323; Further filtering of non-polarized stray light ensures that the polarization direction of the laser entering the objective lens 4 is consistent, improving the processing precision.

[0030] In use: when the pump laser emitter and the laser line are in use (such as in the scene of repairing a mobile phone screen), the device is powered on without preheating the pump lamp tube, and directly enters the working state.

[0031] When laser emission is needed, the main control circuit sends a signal to the transient high-voltage pulse trigger structure of the laser generator 314, which quickly generates a transient high voltage to form an initial arc in the pump lamp tube; at the same time, the main control circuit controls the low-voltage large-capacity main capacitor in the laser generator 314 to discharge along the arc channel, exciting the pump lamp tube to generate a wide spectrum light beam.

[0032] The light beam generated by the pump lamp tube first enters the surface ground rod-shaped light guide, is regularized into an axially propagating light beam, and then passes through the light transmission hole structure and the filter mirror of a specific wavelength, and only the target wavelength laser is retained after filtering out the invalid stray light.

[0033] Subsequently, the light beam enters the light beam adjusting assembly 33, the shutter structure adjusts the size of the light transmission adjusting hole to adapt to the required laser spot size, and the adjusted light beam enters the laser transmission assembly 32: part of the light beam is transmitted to the objective lens 4 through the first laser line, focused and shot to the product surface to complete the processing; another part of the light beam is transmitted to the imaging transmission module 5 through the second laser line, converted into a real-time imaging signal for external device display, and assists the operator in positioning.

[0034] In this process, the laser Q-switcher 311 performs Q-switching processing on the light beam to generate high peak power pulsed laser, while the main control circuit monitors the light beam intensity in real time, and when the intensity reaches the processing requirement, the MOSFET tube is immediately controlled to be turned off to stop the discharge of the main capacitor, so as to avoid the redundant release of energy. After a single processing is completed, the instantaneous high-voltage triggering structure stops working, the pump lamp returns to the non-lighting state, the main capacitor is recharged to the working voltage, and the system returns to the standby state.

[0035] Embodiment two: Based on the above embodiment one, another embodiment is proposed, and the specific improvement is that the first mirror 322 in the laser transmission assembly 32 is configured as a half-transmission half-reflection mirror (the transmission-reflection ratio is preferably 40% transmission and 60% reflection, which can be adjusted according to the laser processing energy requirement and imaging clarity requirement), and the structures, connection relationships and basic parameters of the remaining components, such as the wavelength of the filter mirror, the voltage range of the MOSFET tube, and the working voltage of the main capacitor, are consistent with those of embodiment one.

[0036] The specific configuration logic and working adaptability are as follows: the half-transmission half-reflection mirror is fixedly installed above the light beam transmission space, and the horizontal axis of the mirror surface is still collinear with the horizontal axis of the light transmission hole 321, so as to ensure that the target wavelength laser filtered by the filter mirror can be accurately incident on the surface of the half-transmission half-reflection mirror.

[0037] During work, the incident laser realizes "one-time branching" through the half-transmission half-reflection mirror: part of the laser energy is reflected and shot along the original first laser route to the first inclined half-reflection mirror 323, and finally focused to the product surface through the objective lens 4 to meet the energy intensity required for processing; the remaining laser energy is transmitted and directly shot to the second inclined half-reflection mirror 324 for subsequent steps.

[0038] This embodiment replaces the original full reflection mirror with a single half-transmission half-reflection mirror, further simplifies the optical path structure of the laser transmission assembly 32 on the basis of retaining the core advantages of "no preheating and high energy utilization rate" of embodiment one, reduces the number of mirrors, reduces the energy attenuation caused by multiple mirror reflection, avoids the "alignment deviation" problem of traditional multiple mirror optical path, and improves the stability of long-term work of the system.

[0039] The following further illustrates the prior art pump laser machine as a comparison: as shown in Figures 10 to 12 D3, laser emission structure; its laser branching usually needs to be realized through "multiple full reflection mirrors + half reflection mirror combination", which is easy to cause long optical path and superimposed energy loss. With each additional mirror, the laser energy loss is large.

[0040] The comparison improvement points of the prior art are: ①a single half-transmission half-reflection mirror is used to replace the existing multi-lens combination to realize branching, reduce the number of lenses used, and avoid energy loss caused by the superposition of multiple lenses from the source; ②simplify the optical path design, shorten the optical path length, reduce the interference of vibration on the optical path, improve the stability of the long-term work of the optical path, and avoid affecting the machining precision due to the deviation of the optical path; ③eliminate the precise calibration process of multiple lenses, simplify the assembly process, reduce the space occupied by the lenses, and reduce the overall volume of the laser transmission assembly; ④only the transmission and reflection parameters of the single half-transmission half-reflection mirror need to be adjusted to adapt to different processing scene requirements, without the need to replace multiple lens combinations, which greatly speeds up the scene adaptation speed and improves the flexibility of equipment use.

[0041] Embodiment three: As shown in Figures 7 to 9 The above-mentioned pump laser emitter, laser line also includes a beam adjusting assembly 33 comprising a positioning plate 331, a limiting partition plate 332, a driving motor 333, and an eccentric driving wheel 334. The positioning plate 331 is installed in the beam transmission space inside the sealed housing 2 through screw threads, and is located between the bottom of the first reflecting lens 322 and the top of the first inclined half-reflection lens 323. The positioning plate 331 is made of aluminum alloy and is anodized on the surface. On the one hand, it can reduce the reflection loss of the laser on the surface, and on the other hand, it can improve the heat dissipation performance to avoid the influence of local high temperature caused by long-time irradiation of the light beam on the stability of the assembly.

[0042] The light transmission hole structure is configured as a light transmission round hole opened on the surface of the positioning plate 331 and a flower-shaped light transmission adjusting hole opened on the surface of the first reflecting lens 322. The two are corresponding up and down to ensure that the light beam passes through accurately. The edge of the flower-shaped light transmission adjusting hole is designed with a smooth arc transition. Compared with the rectangular or circular adjusting hole commonly used in the prior art, it can avoid the problem of light spot edge distortion caused by uneven edge and corner shielding when adjusting the light spot size, ensure the regularity of the output laser spot profile, and meet the processing requirements of narrow gap and small welding points in mobile phone screen repair.

[0043] The limiting partition plate 332 is fixedly embedded at the bottom of the positioning plate 331, and two sets of guide grooves are respectively arranged on the upper and lower surfaces of the limiting partition plate 332. Each set of guide grooves is composed of at least two horizontal limiting grooves. The driving motor 333 is fixedly installed at the bottom of the sealed housing 2 and located at the bottom of the limiting partition plate 332. The top output shaft end of each driving motor 333 is eccentrically connected with the eccentric driving wheel 334. Specifically, the two driving motors 333 are electrically connected with the main control circuit. The main control circuit can output pulse signals according to the required spot size of laser processing (such as the size requirements of different repair areas of a mobile phone screen), and control the rotation angle and rotation speed of the driving motor 333. For example, when processing a narrow gap, the control motor drives the eccentric wheel to push the shutter structure to reduce the length size of the light transmission hole. When processing a wide surface, the length size is increased to realize independent adjustment of the length and width dimensions. In the prior art, the laser spot adjustment often adopts a scheme of "manual knob adjustment of a light shielding piece" or "single motor control of a single dimension size". The manual adjustment has low efficiency and poor accuracy. The single motor scheme cannot realize independent adjustment of length and width, and is difficult to adapt to different shapes of processing areas.

[0044] The upper and lower sides of the limiting partition plate 332 are provided with shutter structures, that is, the shutter structures are located on the upper and lower sides of the light transmission adjustment hole. The directions of the two shutter structures are opposite, and correspond to the length and width directions of the limiting partition plate 332 respectively. The layout of the upper and lower shutter structures can ensure "two-way symmetric shielding" of the light transmission adjustment hole, avoid the light spot gravity center deviation caused by single-sided shielding, and further improve the light spot uniformity.

[0045] The driving motor 333 drives the eccentric driving wheel 334 to rotate, and forms a resistance fit with the shutter structure, which is used to adjust the length and width sizes of the light transmission adjustment hole to realize laser spot size adjustment.

[0046] In specific implementation, the shutter structure includes a first moving piece 335, a second moving piece 336, and a bidirectional swing piece 337. The first moving piece 335 and the second moving piece 336 are respectively slidably connected in the corresponding horizontal limiting groove, and a return spring is connected between the sliding parts of the two moving pieces and the horizontal limiting groove. The bidirectional swing piece 337 is rotatably arranged on one side of the limiting partition plate 332, and a torsion spring return structure is connected to the rotating part of the bidirectional swing piece 337 for automatic return after the bidirectional swing piece 337 is forced to rotate. Specifically, the torsion spring return structure is composed of a torsion spring arranged on the bidirectional swing piece 337.

[0047] The two ends of the bidirectional swing piece 337 are respectively in resistance fit with the ends of the first moving piece 335 and the second moving piece 336 on the same side.

[0048] The first moving member 335 and the second moving member 336 are both composed of an arrow plate in the middle and a shielding plate disposed on one side of the two arrow plates close to each other; the bottom of the arrow plate slides in the horizontal limiting groove through a slider adapted to the horizontal limiting groove; the shielding plates are respectively located on both sides of the light-transmitting adjustment hole and are tightly attached to the outer surface of the limiting partition 332; the tip of the arrow plate abuts against the two ends of the bidirectional swing member 337; a lever plate is also provided on the side of the arrow plate of the first moving member 335 away from the second moving member 336, and the lever plates on the upper and lower first moving members 335 abut against the outer peripheral surface of the corresponding eccentric drive wheel 334; The lever arm plate has an arc-shaped contact surface at the end away from the arrow plate, which fits against the outer circumferential surface of the eccentric drive wheel 334. This reduces wear when the two are in contact and ensures that the eccentric drive wheel 334 can stably push the lever arm plate when it rotates.

[0049] The shielding plate is made of blackened stainless steel, which has a high light-blocking rate and can prevent the laser from leaking from the gap between the shielding plate and the limiting partition 332, thus preventing the leaked laser from affecting the laser quality.

[0050] In use: When performing laser processing (such as mobile phone screen repair), the main optical control circuit outputs control signals to the two drive motors 333 according to the processing area requirements; the drive motors 333 drive the eccentric drive wheel 334 to rotate, pushing the first moving part 335 to slide along the horizontal limit groove.

[0051] When the first moving part 335 slides, it is linked to the rotation of the bidirectional swinging part 337, which in turn pushes the second moving part 336 to slide in the opposite direction, so that the shielding plates of the two parts can jointly adjust the length / width of the light transmission adjustment hole and precisely adjust the laser spot to the required size.

[0052] Once the laser spot meets the target, the main control circuit stops outputting signals, and the reset spring and torsion spring reset structure drive each component back to its initial position, preparing for the next adjustment. During this process, the positioning plate 331 reduces laser reflection loss and dissipates heat, while the shielding plate blocks laser leakage, ensuring processing energy and imaging quality.

[0053] Example 4: The aforementioned laser machine employing a pumped laser emitter and laser circuitry includes a laser machine body 1, a worktable 11 on the laser machine body 1, a product loading platform on the worktable 11, and an X / Y / Z axis adjustment mechanism at the bottom of the product loading platform for adjusting the alignment relationship between the product and the objective lens 4. A machine head 12 is also located on the top of the laser machine body 1, and the aforementioned sealed housing 2 and pumped laser module 3 are both housed within the machine head 12. An external display 13 is also installed on one side of the laser machine body 1, and the external display 13 is electrically connected to the imaging transmission module 5 to transmit the image and display it on the external display 13.

[0054] Further, a wind cooling heat dissipation channel can be arranged inside the handpiece 12 and attached to the outer wall of the sealed shell 2; since the pump laser module 3 has been greatly reduced in heat generation by the "MOSFET tube precise energy control" in the present scheme, stable heat dissipation can be achieved with the wind cooling heat dissipation channel; The following will be described in comparison with the prior art pump laser machine: However, the laser machine handpiece in the prior art must be equipped with a water cooling pipeline due to serious heat generation, such as Figure 11 As shown, D3, two water cooling inlet ports on the back of the laser emission structure; not only increases the volume of the handpiece (the volume of the handpiece of the present scheme is greatly reduced compared with the prior art), but also has the risk of water leakage of the water cooling pipeline leading to circuit short circuit.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A pumped laser emitter, laser line, characterized in that, It comprises a sealed shell (2); It also comprises a pump laser module (3) arranged inside the sealed shell (2); The pump laser module (3) is composed of a laser generation assembly (31), a laser transmission assembly (32), a beam adjusting assembly (33), an objective lens (4), an imaging transmission module (5), and a light-transmitting hole structure; The objective lens (4) is fixedly installed at the bottom of one side of the sealed shell (2) and below the laser transmission assembly (32); the imaging transmission module (5) is fixedly arranged at the bottom of the other side of the sealed shell (2) and communicates with the inside of the sealed shell (2); The beam adjusting assembly (33) is located between the laser generation assembly (31) and the laser transmission assembly (32) and is used for adjusting the size of the laser spot; The laser generation assembly (31) comprises a laser Q-switch (311) and a laser generator (314), and the laser Q-switch (311) is based on the structure of a super-speed MOS tube and an iron powder microcrystal magnetic ring; The laser generator (314) is composed of light beam in-out ends at both ends, a pump lamp arranged inside, a rod-shaped light guide body with frosted surface, and a low-voltage large-capacity main capacitor; The pump lamp is provided with a transient high-voltage pulse trigger structure for generating an initial electric arc, and the laser generator (314) is also provided with a voltage-resistant MOSFET tube as a discharge control switch; The laser transmission assembly (32) also comprises a specific wavelength filter lens for filtering invalid stray light; The laser beam is generated and emitted by the laser generation assembly (31); the transient high-voltage pulse trigger structure applies a transient high-voltage pulse to the pump lamp to generate an initial electric arc, and the low-voltage large-capacity main capacitor rapidly discharges during the electric arc persistence to excite the pump lamp to generate a light beam, which is then sequentially passed through the filter lens and the light-transmitting hole structure after being axially regularized by the rod-shaped light guide body with frosted surface; Part of the light beam enters the objective lens (4) through a first laser line formed by the laser transmission assembly (32) and the light-transmitting hole structure, and the laser is shot on the product surface through the objective lens (4); the other part of the light beam enters the imaging transmission module (5) through a second laser line formed by the laser transmission assembly (32) to form an image; the MOSFET tube is turned off when the laser intensity reaches the required value, and the main capacitor continues to discharge.

2. The pump laser transmitter, laser line according to claim 1, characterized in that, The laser generation assembly (31) also comprises a second reflecting lens (312) and a polarizing lens (313); the laser Q-switch (311) is fixedly installed at one end inside the sealed shell (2); the second reflecting lens (312) is fixedly installed inside the sealed shell (2) and located on the side close to the laser Q-switch (311); the polarizing lens (313) is fixedly installed inside the sealed shell (2) and located on the side away from the second reflecting lens (312) of the laser Q-switch (311); and the laser generator (314) is fixedly arranged inside the sealed shell (2) and located on the side away from the second reflecting lens (312) of the polarizing lens (313); The laser Q-switch (311), the second reflecting lens (312), the polarizing lens (313), and the light beam in-out ends are all located on the same horizontal axis.

3. The pump laser transmitter, laser line according to claim 1, characterized in that, The laser transmission assembly (32) comprises a light transmission hole (321), a first reflecting mirror (322), a first obliquely arranged half reflecting mirror (323), and a second obliquely arranged half reflecting mirror (324). The light transmission hole (321) is arranged in the sealed shell (2) and located on the side close to the light beam inlet and outlet end of the laser generator (314) and coaxial with the light beam inlet end for the light beam to pass through. A filter for a specific wavelength is arranged between the light transmission hole (321) and the first reflecting mirror (322) and coaxial with the light transmission hole (321) and the first reflecting mirror (322). The sealed shell (2) is internally provided with a light beam transmission space, and the first reflecting mirror (322) is fixedly installed above the light beam transmission space and coaxial with the horizontal axis of the light transmission hole (321). The first obliquely arranged half reflecting mirror (323) and the second obliquely arranged half reflecting mirror (324) are fixedly installed in the light beam transmission space and located directly below the first reflecting mirror (322). The first obliquely arranged half reflecting mirror (323) and the second obliquely arranged half reflecting mirror (324) are oppositely arranged. The first obliquely arranged half reflecting mirror (323) is located directly above the objective lens (4).

4. The pump laser transmitter, laser line according to claim 3, characterized in that, The first obliquely arranged half reflecting mirror (323) and the second obliquely arranged half reflecting mirror (324) are oppositely arranged at an angle of 45°.

5. The pump laser transmitter, laser line according to claim 3, characterized in that, A polarizing mirror (325) is fixedly installed in the light beam transmission space and located on the side away from the second obliquely arranged half reflecting mirror (324) of the first obliquely arranged half reflecting mirror (323) for polarizing the first obliquely arranged half reflecting mirror (323).

6. The pump laser transmitter, laser line according to claim 1, characterized in that, The light beam adjusting assembly (33) comprises a positioning plate (331), a limiting partition plate (332), a driving motor (333), and an eccentric driving wheel (334). The positioning plate (331) is fixedly installed in the light beam transmission space in the sealed shell (2) by screw threads, and located between the bottom of the first reflecting mirror (322) and the top of the first obliquely arranged half reflecting mirror (323). The light transmission hole structure is configured as a light transmission hole in the surface of the positioning plate (331) and a flower-shaped light transmission adjusting hole in the surface of the first reflecting mirror (322). The two are correspondingly arranged above and below. The limiting partition plate (332) is fixedly embedded in the bottom of the positioning plate (331) and provided with two sets of guide grooves on the upper and lower surfaces, respectively. The two sets of guide grooves correspond to the length and width directions of the limiting partition plate (332), and each set of guide grooves is composed of at least two horizontal limiting grooves. The driving motor (333) is provided with two driving motors, which are fixedly installed at the bottom of the sealed shell (2) and located on both sides of the bottom of the limiting partition plate (332). The top output shaft ends of the two driving motors (333) are eccentrically connected with the eccentric driving wheels (334). The limiting partition plate (332) is provided with shutter structures on the upper and lower sides, and the directions of the two shutter structures are opposite, corresponding to the length and width directions of the limiting partition plate (332). The eccentric driving wheel (334) is driven to rotate by the driving motor (333), and is in abutting cooperation with the shutter structure, so as to adjust the length and width of the light transmission adjusting hole, and to realize the laser spot size adjustment.

7. The pump laser transmitter, laser line according to claim 1, characterized in that, The shutter structure comprises a first moving piece (335), a second moving piece (336) and a bidirectional swing piece (337). The first moving piece (335) and the second moving piece (336) are respectively slidably connected in corresponding horizontal limiting grooves, and a return spring is connected between the sliding parts of the first moving piece (335) and the second moving piece (336) and the horizontal limiting grooves. The bidirectional swing piece (337) is rotatably arranged on one side of the limiting partition plate (332), and a torsion spring return structure is connected to the rotating part of the bidirectional swing piece (337), so as to automatically reset the bidirectional swing piece (337) after being forced to rotate. The two ends of the bidirectional swing piece (337) are respectively in abutting cooperation with the ends of the first moving piece (335) and the second moving piece (336) on the same side.

8. The pump laser transmitter, laser line according to claim 7, characterized in that, The first moving piece (335) and the second moving piece (336) each comprise a central arrow plate and a shielding plate arranged on the side of the two arrow plates close to each other. The bottom of the arrow plate is slidably arranged in the horizontal limiting groove through a slider matched with the horizontal limiting groove. The shielding plate is respectively arranged on the two sides of the light transmission adjusting hole, and is tightly attached to the outer surface of the limiting partition plate (332). The tip of the arrow plate is in abutting cooperation with the two ends of the bidirectional swing piece (337). The side of the arrow plate of the first moving piece (335) away from the second moving piece (336) is further provided with a force arm plate, and the force arm plates on the two first moving pieces (335) are in abutting cooperation with the outer circumferential surface of the corresponding eccentric driving wheel (334).

9. A laser machine applied to the pump laser transmitter, laser line of any one of claims 1 to 8, characterized in that, The laser machine body (1) is provided with a workbench (11), and the laser machine body (1) is further provided with a head (12) on the top. The sealing shell (2) and the pump laser module (3) are arranged in the head (12), and the laser machine body (1) is further provided with an external display (13) on one side. The external display (13) is electrically connected with the imaging transmission module (5) to realize image picture transmission and display the picture on the external display (13). The light beam received by the imaging transmission module (5) is filtered by a specific wavelength filter to avoid white light interference with the imaging stability.

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