Image transmission bundle and lens coupling alignment system and method
By designing the coupling alignment system of image transmission beam and lens, the optical fiber output positioning module, lens positioning module, image acquisition and display module and optical detection and analysis module are used to realize the automatic alignment of the optical fiber image transmission beam and lens, and solve the existing solutions The problems of cumbersome operation and inefficiency in the technology improve imaging quality and operation efficiency.
Patent Information
- Application Number
- CN202411569717.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2024-12-24
AI Technical Summary
The existing fiber optic image transmission beam and lens coupling technology is cumbersome and inefficient in high-precision applications, making it difficult to ensure accurate alignment, affecting imaging quality, especially in the fields of medical imaging and precision instrument detection.
A coupling alignment system for image transmission beam and lens is designed, including an optical fiber output positioning module, a lens positioning module, an image acquisition and display module, an optical detection and analysis module and an automatic alignment drive control module, which collects imaging data in real time and detects light spots. Position and intensity are used to achieve automatic alignment of the lens and the optical fiber image transmission beam horizontally centered.
It realizes fast and accurate coupling between the optical fiber image transmission beam and the lens, improves operating efficiency and imaging quality, reduces adjustment deviation, and is suitable for high-precision imaging application scenarios.
Smart Images

Figure CN119179192A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of optical fiber image transmission connection, and in particular to a system and method for coupling and aligning an image transmission bundle and a lens. Background Art
[0002] Fiber optic image bundles, as flexible image transmission connectors widely used in various fields, offer advantages such as large spatial freedom, slender structure, and light weight. However, in practical applications, especially when directly coupled with CCD devices, precise alignment is extremely demanding. In such specialized one-to-one applications, even slight misalignment can significantly affect the image quality on the CCD image plane, reducing image clarity and accuracy.
[0003] In the prior art, the coupling process between a fiber-optic imaging bundle and a lens suffers from significant shortcomings. First, the coupling process requires multiple adjustments to ensure horizontal alignment between the lens and the fiber-optic imaging bundle. This process is not only cumbersome and inefficient, but also requires significant time and manpower. Second, the lack of an intuitive feedback mechanism makes it difficult for operators to understand the coupling between the fiber-optic imaging bundle and the lens in real time, increasing the risk of deviations during the adjustment process. Finally, due to the difficulty in controlling coupling accuracy, even after multiple adjustments, it is difficult to ensure accurate coupling, which directly affects the final imaging effect and can lead to image distortion, reduced resolution, and other problems. Currently, there are some designs for coupling fiber-optic imaging bundles to lenses, such as Fresnel lens fiber-optic bundle couplers. Researchers need to perform simulations in TracePro software to simulate the luminous flux of a single LED light source, the luminous flux of an LED light source directly coupled to a fiber-optic bundle, and the luminous flux of an LED light source coupled to a fiber-optic bundle through a Fresnel lens coupler. This process requires repeated adjustment and optimization of parameters such as the relative position and tilt angle between the Fresnel lens and the optical fiber to improve beam coupling efficiency. However, in actual operation, multiple adjustments and complex simulation processes are required to achieve the best coupling effect. In terms of confocal endoscope probes, it is necessary to achieve large field of view imaging, which requires the use of large field of view endoscope lenses. The challenge of fiber bundle couplers is the three-dimensional coupling of 30,000 optical fiber cores with micron precision, which requires plug-and-play. This high-precision coupling requires very fine adjustments in actual operation to ensure that each optical fiber is precisely aligned, which undoubtedly increases the complexity and difficulty of the operation. When coupling the fiber optic image bundle with the lens, multiple adjustments are required to ensure precise alignment, and these adjustment processes are often complicated and difficult to intuitively understand the coupling situation, resulting in cumbersome operation and low efficiency. These issues are particularly prominent in applications requiring high-precision imaging, such as medical imaging and precision instrument testing, where a decline in image quality can have serious consequences. Consequently, the shortcomings of existing fiber-optic imaging bundle and lens coupling technology have become a bottleneck restricting its development in high-precision applications. Summary of the Invention
[0004] The purpose of the present invention is to provide a system for coupling and aligning an image transmission bundle with a lens, so as to solve the problem raised in the above-mentioned background technology that the current optical fiber image transmission bundle needs to be adjusted multiple times when coupled with the lens to ensure that the lens and the optical fiber image transmission bundle are horizontally centered. The operation is cumbersome and it is difficult to understand the coupling status of the optical fiber image transmission bundle and the lens, which easily causes adjustment deviation and thus affects the imaging effect.
[0005] To achieve the above object, the present invention provides the following technical solutions: An image beam and lens coupling alignment system includes an optical fiber output end positioning module, a lens positioning module, an image acquisition and display module, an optical detection and analysis module, and an automatic alignment drive control module; The optical fiber output end positioning module is used to adjust and fix the position of the optical fiber output end through electromagnetic positioning; The lens positioning module is used to fix the lens position, and the lens remains fixed during the alignment process; The image acquisition and display module is used to acquire the lens imaging results in real time through the CCD camera and provide feedback to display the imaging results; The optical detection and analysis module is used to detect the position and intensity of the light spot, provide feedback signals to the control system, and collect, process and analyze images; The automatic alignment drive control module is used to drive the fine-tuning movement of the optical fiber output end in the three directions of X, Y and Z according to the analysis results, so as to realize the horizontal centering automatic alignment of the lens and the optical fiber image transmission bundle.
[0006] Preferably, the optical fiber output end positioning module includes a position sensing module, a fine-tuning drive module and a control module; The position sensing module is used to detect and feedback the real-time position information of the optical fiber output end through a photoelectric sensor and an encoder; The fine-tuning drive module is used to make a small movement of the optical fiber output end in the X, Y, and Z directions through the drive component; The control module is used to interact with the host computer in real time to control position information and send control signals.
[0007] Preferably, the lens positioning module includes a lens fixing module and a position information feedback module; The lens fixing module is used to fix the CCD lens and control the lens to be fixed during the alignment process; The position information feedback module is used to detect the lens position and feed back the position information to the control system.
[0008] Preferably, the image acquisition and display module includes a lens acquisition module, an imaging feedback module and an image display module; The lens acquisition module is used to acquire lens imaging information in real time and store the imaging information; The imaging feedback module is used to obtain imaging information and establish an information interaction channel with the host computer to feed back the imaging information; The image display module is used to receive and process lens imaging information, display the collected imaging results, and observe the adjustment effect.
[0009] Preferably, the optical detection and analysis module includes a light spot position detection module, a light spot intensity detection module, an imaging result analysis module, an automatic alignment algorithm analysis module and a real-time feedback module; The light spot position detection module uses an optical sensor or image acquisition system to detect the light spot position at the fiber output end in real time to determine its alignment with the lens and transmits the information to the data processing unit, which uses specially designed algorithms and models to analyze and process the data in real time.
[0010] The light spot intensity detection module detects the intensity of the light spot to evaluate the output power and stability of the optical fiber output end and determine the optical performance of the optical fiber output end; The imaging result analysis module analyzes the lens imaging results through the lens acquisition module, including the clarity, position deviation, distortion, etc. of the light spot, so as to evaluate the alignment between the image beam and the lens; The automatic alignment algorithm analysis module uses an automatic alignment algorithm to analyze and process the optical detection data to achieve automatic alignment adjustment between the optical fiber output end and the lens; The real-time feedback module is used to feed back the optical detection analysis results to the control system in real time, so as to adjust the drive system and realize the automatic alignment process.
[0011] Preferably, the automatic alignment algorithm in the automatic alignment algorithm analysis module is a cross-correlation algorithm. The specific process is as follows: The optimal lens position is determined by calculating the cross-correlation between the spot image and the target image, ensuring the best match between the spot image and the target image. Feature points of the spot image are extracted and matched with the target image to determine the optimal lens position. A training model is then used to intelligently analyze optical inspection data and adjust the lens position. The algorithm can continuously optimize the adjustment algorithm based on analysis of historical data and actual usage. Through model prediction, feedback adjustment, and error correction, the algorithm can gradually improve alignment accuracy and adjustment efficiency.
[0012] Preferably, the automatic alignment drive control module includes a drive motor control module, a control interface module and a control algorithm module; The drive motor control module is used to receive control information, control the micro-movement of the lens in the X, Y, and Z axis directions, and monitor the lens position in real time to accurately position the lens; The control interface module is used to communicate with the optical detection and analysis module and other system modules, receive optical detection data, and transmit adjustment instructions to the drive motor; The control algorithm module calculates the lens adjustment based on data provided by the optical detection and analysis module and transmits the adjustment instructions to the drive motor, automatically adjusting the lens and maintaining the horizontal centering of the lens and the fiber optic imaging bundle. By real-time monitoring of parameters such as the position, temperature, and vibration of the lens and fiber optic imaging bundle, the algorithm automatically adjusts parameters for different operating conditions to ensure stable performance.
[0013] Preferably, the control interface module monitors the lens position in real time and feeds back position information to the control system via a position feedback sensor to achieve closed-loop control.
[0014] A method for coupling and aligning an image beam and a lens, comprising the steps of: By positioning the optical fiber output end and the CCD lens, the lens imaging result data is collected in real time; Establish an information interaction channel to the host computer to feed back imaging information, and determine the alignment between the fiber output end and the lens and the optical performance of the fiber output end through spot position detection and spot intensity detection; Analyze the lens imaging results and use automatic alignment algorithms to analyze and process based on optical detection data; The optical detection analysis results are fed back to the control system in real time to adjust the drive system and realize the automatic alignment process so that the spot image and the target image are most closely matched, thereby determining the optimal lens position.
[0015] Preferably, the automatic alignment algorithm is a cross-correlation algorithm, which determines the optimal lens position by calculating the cross-correlation between the spot image and the target image so that the spot image and the target image are most matched.
[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by collecting lens imaging result data in real time, an information interaction channel is established to feed back imaging information to the host computer, and the alignment of the optical fiber output end with the lens and the optical performance of the optical fiber output end are determined through light spot position detection and light spot intensity detection. Based on the optical detection data, the optimal lens position is determined by calculating the cross-correlation between the light spot image and the target image. By communicating with the optical detection analysis module and other system modules, the optical detection data is received, and the adjustment instructions are transmitted to the drive motor to control the horizontal centering of the lens and the optical fiber image bundle, thereby achieving rapid automatic adjustment of the coupling between the optical fiber image bundle and the lens. The adjustment algorithm is continuously optimized based on analysis of historical data and actual usage. Based on means such as model prediction, feedback adjustment, and error correction, the algorithm can gradually improve alignment accuracy and adjustment efficiency, and facilitates rapid and accurate understanding of the coupling between the optical fiber image bundle and the lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a system block diagram of an image beam and lens coupling alignment system of the present invention; Figure 2 This is a schematic diagram of the coupling alignment structure of an image beam and lens coupling alignment system of the present invention; Figure 3 The figure is a schematic diagram of the image transmission between the optical fiber bundle and the lens of the image transmission bundle and lens coupling alignment system of the present invention.
[0018] In the figure: 1. Optical fiber output end positioning module; 11. Position sensing module; 12. Fine-tuning drive module; 13. Control module; 2. Lens positioning module; 21. Lens fixing module; 22. Position information feedback module; 3. Image acquisition and display module; 31. Lens acquisition module; 32. Imaging feedback module; 33. Image display module; 4. Optical detection and analysis module; 41. Light spot position detection module; 42. Light spot intensity detection module; 43. Imaging result analysis module; 44. Automatic alignment algorithm analysis module; 45. Real-time feedback module; 5. Automatic alignment drive control module; 51. Drive motor control module; 52. Control interface module; 53. Control algorithm module. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0020] Example 1 Reference Figure 1 As shown, this embodiment proposes an image beam and lens coupling alignment system, including an optical fiber output end positioning module 1, a lens positioning module 2, an image acquisition and display module 3, an optical detection and analysis module 4 and an automatic alignment drive control module 5.
[0021] The optical fiber output end positioning module 1 is used to adjust and fix the position of the optical fiber output end through electromagnetic positioning; The lens positioning module 2 is used to fix the lens position, and the lens remains fixed during the alignment process; The image acquisition and display module 3 is used to acquire the lens imaging results in real time through the CCD camera and provide feedback to display the imaging results; The optical detection and analysis module 4 is used to detect the position and intensity of the light spot, provide feedback signals to the control system, and collect, process and analyze images; The automatic alignment drive control module 5 is used to drive the fine-tuning movement of the optical fiber output end in the three directions of X, Y and Z according to the analysis results, so as to realize the automatic horizontal centering alignment of the lens and the optical fiber imaging bundle.
[0022] The optical fiber output end positioning module 1 includes a position sensing module 11, a fine-tuning driving module 12 and a control module 13; The position sensing module 11 is used to detect and feedback the real-time position information of the optical fiber output end through a photoelectric sensor and an encoder; The fine-tuning drive module 12 is used to make small movements of the optical fiber output end in the X, Y, and Z directions through the drive assembly; The control module 13 is used to interact with the host computer in real time to control the position information and send control signals.
[0023] The lens positioning module 2 includes a lens fixing module 21 and a position information feedback module 22; The lens fixing module 21 is used to fix the CCD lens and control the lens to be fixed during the alignment process; The position information feedback module 22 is used to detect the lens position and feed back the position information to the control system.
[0024] The image acquisition and display module 3 includes a lens acquisition module 31, an imaging feedback module 32 and an image display module 33; The lens acquisition module 31 is used to acquire lens imaging information in real time and store the imaging information; The imaging feedback module 32 is used to obtain imaging information and establish an information interaction channel with the host computer to feed back the imaging information; The image display module 33 is used to receive and process lens imaging information, display the collected imaging results, and observe the adjustment effect.
[0025] The optical detection and analysis module 4 includes a light spot position detection module 41, a light spot intensity detection module 42, an imaging result analysis module 43, an automatic alignment algorithm analysis module 44 and a real-time feedback module 45; The light spot position detection module 41 uses an optical sensor or image acquisition system to detect the light spot position at the fiber output end in real time to determine its alignment with the lens and transmits the information to the data processing unit. This unit uses specially designed algorithms and models to analyze and process the data in real time.
[0026] The light spot intensity detection module 42 detects the intensity of the light spot to evaluate the output power and stability of the optical fiber output end and determine the optical performance of the optical fiber output end; The imaging result analysis module 43 analyzes the lens imaging results through the lens acquisition module, including the clarity, position deviation, distortion, etc. of the light spot, so as to evaluate the alignment between the image beam and the lens; The automatic alignment algorithm analysis module 44 uses an automatic alignment algorithm to analyze and process the optical detection data to achieve automatic alignment adjustment between the optical fiber output end and the lens; The real-time feedback module 45 is used to feed back the optical detection analysis results to the control system in real time, so as to adjust the drive system and realize the automatic alignment process.
[0027] The automatic alignment drive control module 5 includes a drive motor control module 51, a control interface module 52 and a control algorithm module 53; The drive motor control module 51 is used to receive control information, control the micro-movement of the lens in the X, Y, and Z axis directions, and monitor the lens position in real time to accurately position the lens; The control interface module 52 is used to communicate with the optical detection and analysis module and other system modules, receive optical detection data, and transmit adjustment instructions to the drive motor; The control algorithm module 53 calculates the lens adjustment based on data provided by the optical detection and analysis module and transmits the adjustment instructions to the drive motor, automatically adjusting the lens and maintaining the horizontal centering of the lens and the fiber optic imaging bundle. By real-time monitoring of parameters such as the position, temperature, and vibration of the lens and fiber optic imaging bundle, the algorithm automatically adjusts these parameters to suit different operating conditions, ensuring stable performance.
[0028] The control interface module 52 monitors the lens position in real time and feeds back the position information to the control system through the position feedback sensor to achieve closed-loop control.
[0029] Example 2 The implementation method of the above system is as follows.
[0030] The optical fiber output end positioning module 1 adjusts and fixes the position of the optical fiber output end through electromagnetic positioning. Specifically, the optical fiber output end positioning module 1 includes a position sensing module 11, a fine-tuning drive module 12 and a control module 13; the position sensing module 11 is used to detect and feedback the real-time position information of the optical fiber output end through a photoelectric sensor and an encoder; the fine-tuning drive module 12 is used to make small movements of the optical fiber output end in the X, Y and Z directions through the drive component; the control module 13 is used to interact with the host computer in real time to control the position information and send control signals.
[0031] The lens positioning module 2 fixes the lens position, and the lens remains fixed during the alignment process. Specifically, the lens positioning module 2 includes a lens fixing module 21 and a position information feedback module 22; the lens fixing module 21 is used to fix the CCD lens and control the lens to be fixed during the alignment process; the position information feedback module 22 is used to detect the lens position and feed back the position information to the control system.
[0032] The image acquisition and display module 3 uses a CCD camera to acquire lens imaging results in real time and provide feedback to display the imaging results. Specifically, the image acquisition and display module 3 includes a lens acquisition module 31, an imaging feedback module 32, and an image display module 33. The lens acquisition module 31 is used to acquire lens imaging information in real time and store the imaging information; the imaging feedback module 32 is used to obtain imaging information and establish an information interaction channel to the upper computer to feedback the imaging information; the image display module 33 is used to receive the lens imaging information and process it, display the acquired imaging results, and observe the adjustment effect.
[0033] The optical detection and analysis module 4 detects the position and intensity of the light spot, provides feedback signals to the control system, and collects, processes, and analyzes images. Specifically, the optical detection and analysis module 4 includes a light spot position detection module 41, a light spot intensity detection module 42, an imaging result analysis module 43, an automatic alignment algorithm analysis module 44, and a real-time feedback module 45. The light spot position detection module 41 uses an optical sensor or image acquisition system to detect the light spot position at the output end of the optical fiber in real time to determine its alignment with the lens. The light spot intensity detection module 42 detects the intensity of the light spot to evaluate the output power and stability of the optical fiber output end and determine the optical performance of the optical fiber output end. The imaging result analysis module 43 uses the lens acquisition module 31 to analyze the lens imaging results, including the clarity, position deviation, distortion, etc. of the light spot, to evaluate the alignment between the image transmission beam and the lens. The automatic alignment algorithm analysis module 44 uses an automatic alignment algorithm to analyze and process the optical detection data to achieve automatic alignment adjustment between the output end of the optical fiber and the lens. The real-time feedback module 45 is used to provide real-time feedback of the optical detection and analysis results to the control system for adjusting the drive system to achieve the automatic alignment process.
[0034] Among them, the automatic alignment algorithm is a cross-correlation algorithm. The specific process is: by calculating the cross-correlation between the spot image and the target image, the optimal lens position is determined so that the spot image and the target image are most matched, and by extracting the feature points of the spot image and matching it with the target image, the optimal lens position is determined. By training the model, intelligent analysis of optical detection data and lens position adjustment are realized.
[0035] The automatic alignment drive control module 5 is used to drive the fine-tuning movement of the optical fiber output end in the X, Y, and Z directions according to the analysis results, so as to realize the automatic horizontal centering of the lens and the optical fiber imaging bundle; specifically, the automatic alignment drive control module 5 includes a drive motor control module 51, a control interface module 52, and a control algorithm module 53; the drive motor control module 51 is used to receive control information, control the slight movement of the lens in the X, Y, and Z axis directions, and monitor the lens position in real time to accurately position the lens; the control interface module 52 is used to communicate with the optical detection analysis module 4 and other system modules, receive optical detection data, and pass the adjustment instructions to the drive motor; the control algorithm module 53 is used to calculate the adjustment amount of the lens based on the data provided by the optical detection analysis module, and pass the adjustment instructions to the drive motor to realize automatic adjustment of the lens and control the horizontal centering of the lens and the optical fiber imaging bundle; wherein, the real-time monitoring of the lens position in the control interface module 52 is fed back to the control system through the position feedback sensor position information to realize closed-loop control.
[0036] The usage method and working principle of the present invention are as follows: by positioning the optical fiber output end and the CCD lens, the lens imaging result data is collected in real time, and an information interaction channel is established to the upper computer to feed back the imaging information. By detecting the light spot position and the light spot intensity, the alignment of the optical fiber output end and the lens and the optical performance of the optical fiber output end are determined. Based on the optical detection data, the cross-correlation between the light spot image and the target image is calculated to determine the optimal lens position so that the light spot image and the target image are most matched. The feature points of the light spot image are extracted and matched with the target image to determine the optimal lens position. By training the model, intelligent analysis of the optical detection data and lens position adjustment are realized. By communicating with the optical detection analysis module 4 and other system modules, the optical detection data is received, and the adjustment instructions are transmitted to the drive motor to control the horizontal centering of the lens and the optical fiber image transmission bundle. By processing the imaging information, the collected imaging results are displayed and the adjustment effect is observed.
[0037] Example 3 Reference Figure 2 As shown, the infrared laser, beam quality analyzer, infrared optical fiber, and optical detector are aligned in sequence and set on the same horizontal line.
[0038] When the image transmission beam is coupled and aligned with the lens coupling alignment system, the working steps are as follows.
[0039] The infrared laser emits a light beam, which enters the beam quality analyzer. The light beam at the output end of the beam quality analyzer enters the infrared optical fiber. The light beam output from the output end of the infrared optical fiber then enters the optical detector for detection.
[0040] The infrared optical fiber is supported by an optical fiber adjustment frame and its position is adjusted by the optical fiber adjustment frame.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An image beam and lens coupling alignment system, characterized in that: It comprises an optical fiber output end positioning module (1), a lens positioning module (2), an image acquisition and display module (3), an optical detection and analysis module (4) and an automatic alignment drive control module (5); The optical fiber output end positioning module (1) is used to adjust and fix the position of the optical fiber output end through electromagnetic positioning; The lens positioning module (2) is used to fix the lens position, and the lens remains fixed during the alignment process; The image acquisition and display module (3) is used to acquire the lens imaging results in real time through a CCD camera and provide feedback to display the imaging results; The optical detection and analysis module (4) is used to detect the position and intensity of the light spot, provide feedback signals to the control system, and collect, process and analyze images; The automatic alignment drive control module (5) is used to drive the fine-tuning movement of the optical fiber output end in the three directions of X, Y and Z according to the analysis result, so as to realize the horizontal centering automatic alignment of the lens and the optical fiber image transmission bundle.
2. The image beam and lens coupling alignment system according to claim 1, characterized in that: The optical fiber output end positioning module (1) comprises a position sensing module (11), a fine-tuning driving module (12) and a control module (13); The position sensing module (11) is used to detect and feed back real-time position information of the optical fiber output end through a photoelectric sensor and an encoder; The fine-tuning driving module (12) is used to make a slight movement of the optical fiber output end in three directions, namely, X, Y and Z, through a driving component; The control module (13) is used to interact with the host computer in real time to control the position information and send out a control signal.
3. The image beam and lens coupling alignment system according to claim 1, characterized in that: The lens positioning module (2) comprises a lens fixing module (21) and a position information feedback module (22); The lens fixing module (21) is used to fix the CCD lens and control the lens to be fixed during the alignment process; The position information feedback module (22) is used to detect the lens position and feed back the position information to the control system.
4. The image beam and lens coupling alignment system according to claim 1, characterized in that: The image acquisition and display module (3) comprises a lens acquisition module (31), an imaging feedback module (32) and an image display module (33); The lens acquisition module (31) is used to acquire lens imaging information in real time and store the imaging information; The imaging feedback module (32) is used to obtain imaging information and establish an information interaction channel with a host computer to feed back the imaging information; The image display module (33) is used to receive and process lens imaging information, display the collected imaging results, and observe the adjustment effect.
5. The image beam and lens coupling alignment system according to claim 1, characterized in that: The optical detection and analysis module (4) comprises a light spot position detection module (41), a light spot intensity detection module (42), an imaging result analysis module (43), an automatic alignment algorithm analysis module (44) and a real-time feedback module (45); The light spot position detection module (41) detects the light spot position at the output end of the optical fiber in real time through an optical sensor or an image acquisition system to determine the alignment between the light spot and the lens; The light spot intensity detection module (42) detects the intensity of the light spot to evaluate the output power and stability of the optical fiber output end and determine the optical performance of the optical fiber output end; The imaging result analysis module (43) analyzes the lens imaging result through the lens acquisition module (31), including the clarity, position deviation, distortion, etc. of the light spot, so as to evaluate the alignment between the image transmission beam and the lens; The automatic alignment algorithm analysis module (44) uses an automatic alignment algorithm to perform analysis and processing based on the optical detection data, so as to achieve automatic alignment adjustment between the optical fiber output end and the lens; The real-time feedback module (45) is used to feed back the optical detection analysis result to the control system in real time, so as to adjust the drive system and realize the automatic alignment process.
6. The image beam and lens coupling alignment system according to claim 5, characterized in that: The automatic alignment algorithm in the automatic alignment algorithm analysis module (44) is a cross-correlation algorithm, and the specific process is: by calculating the cross-correlation between the spot image and the target image, the optimal lens position is determined so that the spot image and the target image are most matched, and by extracting feature points of the spot image and matching them with the target image, the optimal lens position is determined, and by training the model, intelligent analysis of optical detection data and lens position adjustment are achieved.
7. The image beam and lens coupling alignment system according to claim 1, characterized in that: The automatic alignment drive control module (5) comprises a drive motor control module (51), a control interface module (52) and a control algorithm module (53); The drive motor control module (51) is used to receive control information, control the minute movement of the lens in the directions of the X, Y and Z axes, and monitor the position of the lens in real time to accurately position the lens; The control interface module (52) is used to communicate with the optical detection and analysis module (4) and other system modules, receive optical detection data, and transmit adjustment instructions to the drive motor; The control algorithm module (53) is used to calculate the adjustment amount of the lens according to the data provided by the optical detection analysis module, and transmit the adjustment instruction to the drive motor to realize automatic adjustment of the lens and control the horizontal centering of the lens and the optical fiber image transmission bundle.
8. The image beam and lens coupling alignment system according to claim 7, characterized in that: The control interface module (52) monitors the lens position in real time and feeds back the position information to the control system through the position feedback sensor to achieve closed-loop control.
9. A method for coupling and aligning an image beam and a lens, based on the system for coupling and aligning an image beam and a lens as claimed in any one of claims 1 to 8, characterized in that: Includes steps: By positioning the optical fiber output end and the CCD lens, the lens imaging result data can be collected in real time; Establish an information interaction channel to the upper computer to feed back imaging information, and determine the alignment between the fiber output end and the lens and the optical performance of the fiber output end through spot position detection and spot intensity detection; Analyze the lens imaging results and use automatic alignment algorithms to analyze and process based on optical detection data; The optical detection and analysis results are fed back to the control system in real time to adjust the drive system and realize the automatic alignment process so that the spot image and the target image are most closely matched, thereby determining the optimal lens position.
10. The method for coupling and aligning an image beam and a lens according to claim 9, characterized in that: The automatic alignment algorithm is a cross-correlation algorithm, which determines the best lens position by calculating the cross-correlation between the spot image and the target image, so that the spot image and the target image are most matched.
