Water guide laser spot active compensation system and method based on temperature rise of optical element

Abstract

This invention relates to the field of water-guided laser precision machining technology, and particularly to an active compensation system for water-guided laser spot based on the temperature rise of optical components. The system comprises: a temperature rise determination module for determining the temperature rise state of the water-guided laser optical components; a spot state calculation module for predicting the change in the spot size on the nozzle exit plane based on the thermo-optical effect caused by the temperature rise state; and an optical path adjustment component for online compensation of the change in the spot size on the nozzle exit plane. This system allows for dynamic adjustment of the spot position and shape, achieving efficient and stable optical-water coupling, and meeting the practical application requirements of high-precision, high-consistency water-guided laser machining.

Description

Technical Field

[0001] This invention belongs to the field of water-guided laser precision machining technology, and particularly relates to a water-guided laser spot active compensation system and method based on the temperature rise of optical components. Background Technology

[0002] Water-guided laser technology is a technique that uses a laser beam delivered through a specialized nozzle and carried by an extremely fine water jet for precision machining. Compared to traditional dry laser processing, water-guided lasers offer advantages such as a smaller heat-affected zone, higher machining quality, and lower residual stress in materials. They are particularly widely used in drilling, cutting, and micromachining of high-reflectivity metals and brittle materials.

[0003] In a typical water-guided laser system, the laser beam must first be collimated by a collimating optical component and then focused by a focusing optical component to form a spot at the nozzle exit that coincides with the water jet, achieving efficient optical-water coupling. During water-guided laser processing, prolonged high-power operation of the laser causes heat accumulation in optical components such as collimating and focusing lenses. Because the refractive index of optical materials is temperature-sensitive, changes in refractive index gradients and thermal lensing effects occur in optical components under temperature rise conditions, leading to axial drift, lateral shift, and changes in the laser spot's focal position. These phenomena directly affect the positional stability and dimensional uniformity of the laser spot on the nozzle exit plane, further impacting the quality of optical-water coupling, the consistency of water-guided laser processing, and the nozzle's lifespan. Therefore, how to dynamically adjust the spot position and shape to achieve efficient and stable optical-water coupling, meeting the practical application requirements of high-precision and high-consistency water-guided laser processing, has become an urgent technical problem to be solved. Summary of the Invention

[0004] In view of this, the present invention aims to provide a water-guided laser spot active compensation system and method based on the temperature rise of optical components, which can dynamically adjust the spot position and shape to achieve efficient and stable optical-water coupling and meet the practical application requirements of high-precision and high-consistency water-guided laser processing.

[0005] To achieve the above objectives, the technical solution created by this invention is implemented as follows: This invention provides an active compensation system for water-guided laser spot based on the temperature rise of optical components, comprising: a temperature rise determination module for determining the temperature rise state of the water-guided laser optical component; a spot state calculation module for predicting the change in the spot on the nozzle exit plane based on the thermo-optical effect of the optical component caused by the temperature rise state; and an optical path adjustment component for compensating the change in the spot on the nozzle exit plane online.

[0006] Furthermore, it also includes a laser operating parameter acquisition module to acquire the operating parameters of the water-guided laser, so that the temperature rise determination module can determine the temperature rise state of the optical element based on the operating parameters.

[0007] Furthermore, the light spot state calculation module specifically: determines the refractive index change or equivalent focal length change of the optical element based on the temperature rise state; and calculates the positional offset and the change in light spot size on the nozzle exit plane based on the refractive index change or equivalent focal length change.

[0008] Furthermore, it also includes a laser source, an optical transmission component, and a water-guided laser nozzle assembly. The optical transmission component forms a laser optical path between the laser source and the water-guided laser nozzle assembly. The optical path adjustment component adjusts the laser optical path to compensate online for the positional offset of the light spot on the nozzle outlet plane and the change in the light spot size.

[0009] Furthermore, the positional offset of the light spot on the nozzle exit plane includes both the axial and lateral positional offset of the light spot on the nozzle exit plane.

[0010] In addition, this application provides an active compensation method for water-guided laser spot based on the temperature rise of optical components, comprising the following steps: determining the temperature rise state of the water-guided laser optical component; predicting the change in the spot on the nozzle exit plane based on the thermo-optical effect of the optical component caused by the temperature rise state; and compensating the change in the spot on the nozzle exit plane online.

[0011] Furthermore, determining the temperature rise state of the water-guided laser optical element specifically includes: determining the temperature rise state of the optical element based on the operating parameters of the water-guided laser.

[0012] Furthermore, the thermo-optical effect of the optical element predicts the change in the light spot on the nozzle exit plane, specifically including: determining the change in refractive index or the change in equivalent focal length of the optical element based on the temperature rise state; and calculating the positional offset and the change in spot size of the light spot on the nozzle exit plane based on the change in refractive index or the change in equivalent focal length.

[0013] Furthermore, online compensation for the change in the light spot on the nozzle exit plane specifically includes: adjusting the laser light path through the optical path adjustment component to online compensate for the positional offset and the change in the light spot size on the nozzle exit plane.

[0014] Furthermore, the present invention also provides an electronic device, characterized in that it includes: a processor, a memory, and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to perform the steps of the landslide susceptibility prediction method described above.

[0015] Compared with existing technologies, the water-guided laser spot active compensation system based on the temperature rise of optical components provided by this invention includes: a temperature rise determination module to determine the temperature rise state of the water-guided laser optical components; a spot state calculation module to predict the change in the spot on the nozzle exit plane based on the thermo-optical effect of the optical components caused by the temperature rise; and an optical path adjustment component to compensate for the change in the spot on the nozzle exit plane online. In existing technologies, there is no method or device that uses the temperature rise of optical components as a core control variable to quantitatively predict and compensate for the change in the spot on the nozzle exit plane caused by the thermo-optical effect of the optical components due to the temperature rise. This invention introduces the temperature rise state of the optical components to predict the change in the spot on the nozzle exit plane, and performs online active and real-time compensation for the change in the spot based on the predicted change, to ensure that the laser spot is stably located on the nozzle exit plane, suitable for the stable control of water-guided laser precision machining systems. This invention can dynamically adjust the laser optical path according to the temperature rise state of the optical components, achieve stable spot control, reduce the need for manual intervention, and improve the processing efficiency and automation level of water-guided laser equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the water-guided laser spot active compensation system provided in an embodiment of the present invention; Figure 2 This is a schematic flowchart of the water-guided laser spot active compensation method provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the ray trajectory of the water-guided laser beam in the active compensation method for water-guided laser beams provided in this embodiment of the invention. Figure 4 This is a schematic diagram comparing the spot sizes corresponding to different laser powers of 1W and 300W in the water-guided laser spot active compensation method provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of an electronic device provided for an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and do not constitute a limitation thereof. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the invention. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the invention are not shown or described in the specification. This is to avoid obscuring the core parts of the invention with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined to form various implementations. Furthermore, the order of the steps or actions in the method description can be changed or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] This invention compensates for the laser beam path by predicting the change in the laser spot's position on the nozzle exit plane after incorporating the temperature rise status of optical components. This ensures the laser spot remains stably positioned on the nozzle exit plane and is suitable for the stable control of water-guided laser precision machining systems. The following will describe in detail the active compensation system and method for water-guided laser spots based on the temperature rise of optical components provided by this invention, with reference to the accompanying drawings and embodiments.

[0022] Example 1 like Figure 1 As shown, the water-guided laser spot active compensation system based on the temperature rise of optical components provided in this embodiment of the invention includes: a temperature rise determination module 10, which determines the temperature rise state of the water-guided laser optical component; a spot state calculation module 20, which predicts the amount of change of the spot on the nozzle exit plane based on the thermo-optical effect of the optical component caused by the temperature rise state; and an optical path adjustment component 30, which compensates for the amount of change of the spot on the nozzle exit plane online.

[0023] There are various methods to determine the temperature rise state of optical components, such as prediction using finite element models, lookup tables, or direct sensor measurement, such as using temperature sensors or infrared thermography. The obtained temperature rise state of the optical components can be used as the basis for predicting and compensating for the change in the laser spot on the nozzle exit plane, ensuring that the laser spot is stably located on the nozzle exit plane. This is suitable for the stable control of water-guided laser precision machining systems. The positional offset and dimensional change of the laser spot on the nozzle exit plane can be dynamically adjusted to improve compensation accuracy, achieve efficient and stable optical-water coupling, and meet the practical application requirements of high-precision, high-consistency water-guided laser machining, overcoming the shortcomings of existing technologies that rely solely on fixed optical designs or simple empirical adjustments.

[0024] The water-guided laser spot active compensation system provided in this embodiment of the invention integrates an optical element temperature rise determination module 10, a spot state calculation module 20, and an optical path adjustment component 30. The optical path adjustment component can adjust the position or angle of the laser light path through a beam splitter, a reflector, an electric translation mirror, a rotating mirror, or an equivalent commonly used optical path adjustment component to change the direction of the light path or the focal position, thereby ensuring that the laser spot is stably located on the nozzle exit plane and meeting the requirements for optical-water coupling stability during water-guided laser processing.

[0025] The water-guided laser spot active compensation system provided in this embodiment of the invention uses the nozzle exit plane as the compensation benchmark for spot variation, which can directly serve actual processing needs, avoid the deviation caused by adjusting only the theoretical focus, and reduce nozzle damage and processing defect rate.

[0026] The beam spot state calculation module 20 calculates the predicted position offset and size change of the beam spot on the nozzle exit plane through table lookup, mathematical model, finite element simulation, or other equivalent algorithms. Meanwhile, the optical path adjustment component 30 compensates for the change in the beam spot on the nozzle exit plane online through closed-loop feedback, open-loop prediction, or a combination of both.

[0027] Furthermore, the water-guided laser spot active compensation system based on optical element temperature rise provided in this embodiment of the invention also includes a laser operating parameter acquisition module to acquire the operating parameters of the water-guided laser, so that the temperature rise determination module can determine the temperature rise state of the optical element according to the operating parameters. Specifically, during laser processing, the temperature rise state of the optical element is determined according to the laser's operating parameters, such as power, wavelength, pulse width, or working time. The temperature rise state can be determined through a preset model, a lookup table method, or a sensing method.

[0028] Few existing technologies can establish a clear mapping relationship between laser operating parameters such as power, wavelength, pulse width, or operating time and the temperature rise state of optical components, and control the optical path adjustment component to adjust the laser optical path to achieve online compensation for the amount of change of the laser spot on the nozzle exit plane, so that the laser spot always remains on the nozzle exit plane.

[0029] The system provided in this invention comprehensively considers the temperature rise effect of optical components during laser processing. By establishing a correspondence between laser operating parameters and changes in the position and size of the laser spot, it achieves prediction and compensation control of the water-guided laser spot. The spot change prediction and compensation part can be configured and expanded according to different laser power, wavelength, and operating modes.

[0030] Furthermore, in the water-guided laser spot active compensation system based on the temperature rise of optical elements provided in this embodiment of the invention, the spot state calculation module specifically: determines the refractive index change or equivalent focal length change of the optical element based on the temperature rise state; and calculates the positional offset of the laser spot on the nozzle exit plane and the change in spot size based on the refractive index change or equivalent focal length change. By determining the refractive index change or equivalent focal length change of the optical element based on its temperature rise state, the positional offset of the laser spot on the nozzle exit plane and the change in spot size can be calculated. Using the water-guided laser spot active compensation system provided in this embodiment of the invention, the positional offset of the laser spot on the nozzle exit plane and the change in spot size can be calculated, achieving quantitative prediction and then online real-time quantitative compensation.

[0031] When the detected or calculated spot position and spot size deviate from the preset range, the optical path adjustment component is controlled to perform online compensation adjustment. The optical path adjustment component includes a beam splitter, a reflector, or other equivalent optical path adjustment structure. By changing the angle or position of the laser optical path, the laser optical path is adjusted so that the laser spot is re-stabilized on the nozzle exit plane.

[0032] Furthermore, the water-guided laser spot active compensation system based on the temperature rise of optical components provided in this embodiment of the invention also includes a laser source, an optical transmission component, and a water-guided laser nozzle component. The optical transmission component forms a laser optical path between the laser source and the water-guided laser nozzle component. The optical path adjustment component adjusts the laser optical path to compensate online for the positional offset of the spot on the nozzle outlet plane and the change in the spot size.

[0033] The water-guided laser spot active compensation system provided in this embodiment of the invention may include a laser source, an optical transmission component, an optical path adjustment component, a temperature rise determination module, a spot state calculation module, and a water-guided laser nozzle assembly. The laser beam emitted from the laser source passes sequentially through a collimation component and a focusing component, and then enters the water jet through the nozzle outlet to form a water-guided laser beam. (See [link to relevant documentation]). Figure 3 However, as the processing time increases, the optical components of the collimation and focusing assemblies experience temperature rise, such as... Figure 4 As shown, higher power leads to a greater change in the light spot due to temperature rise. The collimation and focusing components can be equivalent optical systems composed of single-chip optical elements, composite multi-chip optical elements, or combinations of lenses and mirrors. All of these can achieve focusing and collimation of the light spot, thereby working in conjunction with the optical path adjustment component to achieve stable light spot control. The aforementioned functional modules can be integrated into a single control unit or distributed across different hardware units, both achieving the goal of stable light spot control.

[0034] Furthermore, in the water-guided laser spot active compensation system based on optical element temperature rise provided in this embodiment of the invention, the positional offset of the spot on the nozzle exit plane includes the axial positional offset and the lateral positional offset of the spot on the nozzle exit plane.

[0035] The water-guided laser spot active compensation system provided in this invention uses the nozzle exit plane as the reference for spot control, rather than solely relying on the theoretical focal position, which better aligns with the actual processing conditions of water-guided lasers. This invention not only controls the axial (laser path direction) offset of the spot but also considers the lateral offset of the spot on the nozzle exit plane and the change in spot size, achieving comprehensive compensation for spot variations.

[0036] The embodiments of the present invention may also include a human-computer interaction unit for displaying the working parameters of the laser, the temperature rise status of the optical components, and the spot compensation results. Operators can set the compensation strategy according to actual processing needs.

[0037] In existing technologies, there is no method or device that uses the temperature rise of optical components as a core control variable to quantitatively predict and compensate for the change in the laser spot on the nozzle exit plane caused by the thermo-optical effect of the optical components due to temperature rise. This invention predicts the change in the laser spot on the nozzle exit plane by introducing the temperature rise state of the optical components, and performs online active and real-time compensation for the change in the laser spot based on the predicted change, ensuring that the laser spot is stably located on the nozzle exit plane. This is suitable for the stable control of water-guided laser precision machining systems. This invention can dynamically adjust the laser path according to the temperature rise state of the optical components, achieving stable control of the laser spot, reducing the need for manual intervention, and improving the processing efficiency and automation level of water-guided laser equipment.

[0038] Example 2 like Figure 2 As shown, this embodiment of the invention also provides an active compensation method for water-guided laser spot based on the temperature rise of optical components, including the following steps: S10: determining the temperature rise state of the water-guided laser optical component; S20: predicting the change in the spot on the nozzle exit plane based on the thermo-optical effect of the optical component caused by the temperature rise state; S30: compensating the change in the spot on the nozzle exit plane online.

[0039] The key point of this invention is that it uses the temperature rise of optical components as the core control factor affecting the stability of the water-guided laser spot. Based on the changes in the optical characteristics of the optical components caused by the temperature rise, it predicts and compensates online for the changes in the position and size of the laser spot on the nozzle exit plane, improving compensation accuracy and overcoming the shortcomings of existing technologies that rely solely on fixed optical designs or simple empirical adjustments.

[0040] This invention uses the change in the laser spot's position on the nozzle exit plane as a compensation benchmark, directly serving actual processing needs and avoiding deviations caused by adjusting only the theoretical focal point, thus reducing nozzle damage and processing defect rates. It is understood that the calculation of the laser spot's position offset and size change can be accomplished through table lookup, mathematical models, finite element simulation, or other equivalent algorithms. Online compensation control can be achieved through closed-loop feedback, open-loop prediction, or a combination of both. The online compensation method can adjust the laser optical path, using beam splitters, reflectors, motorized translation mirrors, rotating mirrors, or other adjustable optical mechanisms to adjust the angle or position of the laser optical path, thereby changing the direction of the laser optical path or the position of the focal point, and achieving stability of the laser spot on the nozzle exit plane.

[0041] Furthermore, in the active compensation method for water-guided laser spot based on the temperature rise of optical components provided in this embodiment of the invention, S10: determining the temperature rise state of the water-guided laser optical component specifically includes: determining the temperature rise state of the optical component according to the operating parameters of the water-guided laser. By introducing the temperature rise factor of the optical component, a correspondence is established between the operating parameters of the water-guided laser and the change in the position and size of the spot on the nozzle exit plane, thereby improving the accuracy of spot compensation from a physical mechanism perspective.

[0042] In this embodiment of the invention, the temperature rise state of the optical element is determined by acquiring the laser operating parameters, the change in the light spot on the nozzle exit plane is calculated based on the temperature rise state of the optical element, and the optical path adjustment component is controlled accordingly to adjust the angle or position of the laser light path to compensate for the change in the light spot on the nozzle exit plane.

[0043] Furthermore, in the active compensation method for water-guided laser spot based on the temperature rise of optical elements provided in this embodiment of the invention, S20: the thermally induced optical effect of the optical element predicts the change in the spot size on the nozzle exit plane, specifically including: determining the change in refractive index or equivalent focal length of the optical element based on the temperature rise state; calculating the positional offset and the change in spot size on the nozzle exit plane based on the change in refractive index or equivalent focal length. This embodiment of the invention not only controls the axial positional offset of the spot on the nozzle exit plane, but also controls the lateral offset and the change in spot size, achieving comprehensive compensation for the spot state.

[0044] Furthermore, in the active compensation method for water-guided laser spot based on the temperature rise of optical components provided in this embodiment of the invention, S30: online compensation of the change in the laser spot on the nozzle exit plane specifically includes: adjusting the laser optical path through an optical path adjustment component to online compensate for the positional offset and the change in spot size on the nozzle exit plane, thereby improving the stability and processing consistency of the water-guided laser optical-water coupling. This embodiment of the invention is compatible with different laser powers, wavelengths, and pulse characteristics, adapting to continuous or pulsed processing modes, thus improving versatility and applicability.

[0045] In existing technologies, there is no method or device that uses the temperature rise of optical components as a core control variable to quantitatively predict and compensate for the changes in the laser spot's position on the nozzle exit plane caused by the temperature rise-induced refractive index change and thermal lensing effect. This invention predicts the change in the laser spot's position on the nozzle exit plane by introducing the temperature rise status of the optical components, and then performs online active and real-time compensation for this change to ensure the laser spot remains stably positioned on the nozzle exit plane. This is suitable for the stable control of water-guided laser precision machining systems. This invention can dynamically adjust the laser path according to the temperature rise status of the optical components, achieving stable spot control, reducing the need for manual intervention, and improving the processing efficiency and automation level of water-guided laser equipment.

[0046] Furthermore, embodiments of the present invention also provide an electronic device, a readable storage medium, and a computer program product. These include a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate via the bus, and the machine-readable instructions are executed by the processor to perform the steps of the Bayer format image white balance correction method described above. Figure 5 This invention provides a computer device, a readable storage medium, and a computer program product in its embodiments.

[0047] Figure 5 This is a schematic diagram of the structure of a computer device 12 provided in an embodiment of the present invention. Figure 5 A block diagram of an exemplary computer device 12 suitable for implementing embodiments of the present invention is shown. Figure 5 The computer device 12 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0048] like Figure 5As shown, computer device 12 is represented in the form of a general-purpose computing device. Computer device 12 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic devices can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0049] The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0050] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. For example, these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0051] Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0052] System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory. Computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 5 Not shown; usually referred to as a "hard drive"). Although Figure 5 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0053] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of the present invention.

[0054] Computer device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable a user to interact with computer device 12, and / or with any device that enables computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, computer device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of computer device 12 via bus 18. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0055] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the Bayer format image white balance correction method provided in the embodiments of the present invention.

[0056] This invention also provides a non-transitory computer-readable storage medium storing computer instructions, on which a computer program is stored, wherein the program, when executed by a processor, is the Bayer format image white balance correction method provided in all embodiments of this application.

[0057] The computer storage medium of this invention can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. More specific examples (a non-exhaustive list) of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0058] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0059] The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof. The computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0060] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the Bayer format image white balance correction method described above.

[0061] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0062] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A water-guided laser spot active compensation system based on the temperature rise of optical components, characterized in that: include: Temperature rise determination module, which determines the temperature rise status of the water-guided laser optical element; The light spot state calculation module predicts the amount of change of the light spot on the nozzle exit plane based on the thermo-optical effect of the optical element caused by the temperature rise state. The optical path adjustment component compensates for the change in the light spot on the nozzle outlet plane in real time.

2. The active compensation method for water-guided laser spot according to claim 1, characterized in that: It also includes a laser operating parameter acquisition module to acquire the operating parameters of the water-guided laser, so that the temperature rise determination module can determine the temperature rise state of the optical element based on the operating parameters.

3. The water-guided laser spot active compensation system according to claim 1 or 2, characterized in that: The spot state calculation module specifically includes: The amount of refractive index change or equivalent focal length change of the optical element is determined based on the temperature rise state. The positional offset and size change of the light spot on the nozzle exit plane are calculated based on the refractive index change or the equivalent focal length change.

4. The water-guided laser spot active compensation system according to claim 3, characterized in that: It also includes a laser source, an optical transmission component, and a water-guided laser nozzle assembly. The optical transmission component forms a laser optical path between the laser source and the water-guided laser nozzle assembly. The optical path adjustment component adjusts the laser optical path to compensate online for the positional offset of the light spot on the nozzle outlet plane and the change in the light spot size.

5. The active compensation method for water-guided laser spot according to claim 4, characterized in that: The positional offset of the light spot on the nozzle exit plane includes the axial positional offset and the lateral positional offset of the light spot on the nozzle exit plane.

6. A method for active compensation of water-guided laser spot based on temperature rise of optical components, characterized in that: Includes the following steps: Determine the temperature rise status of the water-guided laser optical element; The change in the light spot on the nozzle exit plane is predicted based on the thermo-optical effect of the optical element caused by the temperature rise. The amount of change in the light spot on the nozzle exit plane is compensated online.

7. The active compensation method for water-guided laser spot according to claim 6, characterized in that: Determining the temperature rise state of the water-guided laser optical element specifically includes: The temperature rise state of the optical element is determined based on the operating parameters of the water-guided laser.

8. The active compensation method for water-guided laser spot according to claim 6 or 7, characterized in that: The thermo-optical effect of the optical element predicts the change in the light spot on the nozzle exit plane, specifically including: The amount of refractive index change or equivalent focal length change of the optical element is determined based on the temperature rise state. The positional offset and size change of the light spot on the nozzle exit plane are calculated based on the refractive index change or the equivalent focal length change.

9. The active compensation method for water-guided laser spot according to claim 8, characterized in that: Online compensation for the variation of the light spot on the nozzle exit plane specifically includes: The laser beam path is adjusted by the optical path adjustment component to compensate online for the positional offset and size change of the beam spot on the nozzle exit plane.

10. An electronic device, characterized in that, include: The device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the active compensation method for water-guided laser spot as described in any one of claims 6 to 9.

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