A multi-degree-of-freedom based focal plane splicing device
Patent Information
- Application Number
- CN202522292657.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-29
AI Technical Summary
当目标像点落在这个缝隙上时，就会造成信息丢失，成像出现一条条“盲区”
1、本申请通过增加靶标偏摆导轨，使得靶标可以进行旋转，进而使整个装置在拼接过程中可进行探测器曲面拼接；
Smart Images
Figure CN224843917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of focal plane splicing equipment, and in particular to a focal plane splicing device based on multiple degrees of freedom. Background Technology
[0002] In high-end cameras, astronomical telescopes, lidar, and other optical systems, ultra-large-size, ultra-high-pixel, and defect-free image sensors are required. However, manufacturing a single ultra-large-size, ultra-high-pixel, and defect-free image sensor is extremely difficult, resulting in low yield and exponentially increasing costs. To overcome the manufacturing limitations of a single large-size focal plane detector, multiple small detectors are precisely stitched together to form a larger effective focal plane, thereby creating an ultra-high-resolution, ultra-wide-field-of-view imaging system. This requires using multiple mature, high-yield, relatively small detector chips, "stitching" them together to physically form a larger imaging area. Simply placing several chips side by side will result in physical gaps (tens to hundreds of micrometers wide). When a target image point falls into these gaps, information is lost, and "blind spots" appear in the image.
[0003] Currently, conventional focal plane splicing equipment mainly uses XYZ three-degree-of-freedom splicing, which splices the focal plane by adjusting the displacement. However, when the focal plane has an irregular shape or the structure has interference or other related problems, the conventional focal plane splicing method cannot meet the usage requirements.
[0004] Therefore, those skilled in the art have provided a multi-degree-of-freedom focal plane stitching device to solve the problems mentioned in the background art. Utility Model Content
[0005] This invention provides an optimized scheme based on conventional focal plane stitching methods for focal planes with different structures and forms, which can better solve unconventional focal plane stitching tasks. It is a multi-degree-of-freedom-based focal plane stitching device.
[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a focal plane splicing device based on multiple degrees of freedom, comprising: A displacement stage assembly has two X-direction guide rails, a Y-direction guide rail that can move along its length direction is provided between the two X-direction guide rails, and a Z-direction guide rail that can follow its movement is provided on the Y-direction guide rail. A lens assembly is mounted on a Z-axis guide rail. The lens assembly has a displacement platform, on which a lens angle adjustment component is mounted, and on which a stitching lens is mounted. The target assembly has a target placement frame, a target is installed in the center of the top surface of the target placement frame, the target is set on a target deflection guide rail, a target deflection motor is set below the target deflection guide rail, and the output end of the target deflection motor drives the target deflection guide rail to swing. A light source assembly, wherein the light-emitting end of the light source assembly is positioned toward the target assembly.
[0007] Furthermore, the displacement platform assembly includes a platform base, with a guide groove formed by an inward recess in the middle of the top surface of the platform base. The two ends of the guide groove extend to the two end faces of the platform base. Two X-direction guide rails are respectively installed on the side walls of the guide groove, and an X-direction linear guide rail motor is provided on the X-direction guide rail.
[0008] Furthermore, the Y-direction guide rail is installed in the middle of the top surface of the Y-direction support box, and both ends of the Y-direction support box are connected to the X-direction guide rail. The Y-direction support box moves along the X-direction guide rail under the drive of the X-direction linear guide rail motor.
[0009] Furthermore, the Z-direction guide rail is installed between the Z-direction support box and the support box body, the Z-direction support box is disposed within the support box body, the support box body is installed on the Y-direction guide rail, and a Y-direction linear guide rail motor is provided on the Y-direction guide rail near the support box body. The Z-direction support box moves along the Y-direction guide rail under the drive of the Y-direction linear guide rail motor. A Z-direction linear guide rail motor is disposed between the Z-direction support box and the support box body, and the Z-direction linear guide rail motor drives the support box body to move along the Z-direction guide rail. The target assembly is installed in the middle of the top surface of the Z-direction support box, and the light source assembly is disposed inside the Z-direction support box.
[0010] Furthermore, the displacement platform includes a lens X-direction displacement stage and a lens Z-direction displacement stage. The lens X-direction displacement stage is disposed on the top surface of the Z-direction support box near the edge. The lens Z-direction displacement stage can move along the length direction of the lens X-direction displacement stage. A lens turntable is installed at the top of the lens Z-direction displacement stage, and the lens turntable can move along the height direction of the lens Z-direction displacement stage. The lens angle adjustment component is installed on the lens turntable.
[0011] Furthermore, the lens angle adjustment assembly includes a mounting bracket, one end of which is connected to the lens turntable, and the top surface of the mounting bracket away from the lens turntable has an arc-shaped surface; the stitched lens is mounted on a lens mounting base, the lens mounting base is movable along the arc-shaped surface, and the lens mounting base is also provided with a lens locking block, the lens locking block being located on one side of the stitched lens.
[0012] Furthermore, the target assembly includes a target X-direction guide rail and a target Z-direction guide rail. The target X-direction guide rail moves along the height direction of the Z-direction guide rail, and the target Z-direction guide rail can move along the length direction of the target X-direction guide rail.
[0013] Furthermore, the target placement frame can move along the length of the target X-direction guide rail. The end of the target X-direction guide rail is connected to the target X-direction linear guide rail motor. The target placement frame moves along the target X-direction guide rail under the drive of the target X-direction linear guide rail motor. The target Z-direction guide rail is set on one side of the target. A target Z-direction linear guide rail motor is set on the side of the target Z-direction guide rail near the target. The target Z-direction linear guide rail motor drives the target to move along the target Z-direction guide rail.
[0014] Furthermore, the light source assembly includes a light source control box, which is installed on the bottom wall of the Z-direction support box. The end of the light source control box near the bottom wall of the Z-direction support box has a light source, and the other end of the light source control box away from the Z-direction support box is connected to an aperture, which is oriented toward the target.
[0015] In the above technical solution, the focal plane splicing device based on multiple degrees of freedom provided by this utility model has the following beneficial effects: 1. This application adds a target tilting guide rail, which allows the target to rotate, thereby enabling the entire device to perform detector surface splicing during the splicing process. 2. By adding a lens X-axis displacement stage and a lens Z-axis displacement stage, high-precision stitching can be performed during use. At the same time, with the addition of a turntable to the lens, multi-angle stitching of the focal plane can be achieved. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 A schematic diagram of a multi-degree-of-freedom focal plane splicing device provided for an embodiment of this utility model; Figure 2 yes Figure 1 Schematic diagram of the intermediate displacement stage assembly; Figure 3 yes Figure 2 Top view in the middle; Figure 4 yes Figure 2 A bottom view; Figure 5 yes Figure 2 Sectional view; Figure 6 for Figure 1 A schematic diagram of the middle lens assembly; Figure 7 for Figure 6 Top view; Figure 8 for Figure 6 Side view; Figure 9 yes Figure 6 Main view of the lens angle adjustment component; Figure 10 for Figure 1 A schematic diagram of the target assembly; Figure 11 for Figure 10 The main view; Figure 12 for Figure 11 BB side sectional view; Figure 13 for Figure 11 CC side sectional view; Figure 14 for Figure 10 Side view; Figure 15 for Figure 10 Rear view; Figure 16 for Figure 1 A schematic diagram of the structure of the light source component; Figure 17 for Figure 16 The main view; Figure 18 for Figure 16 A bottom view; Figure 19 for Figure 16 Side view.
[0018] Explanation of reference numerals in the attached figures: 10. X-direction guide rail; 11. Y-direction guide rail; 12. Z-direction guide rail; 13. Platform base; 14. Guide groove; 15. X-direction linear guide motor; 16. Y-direction support box; 17. Z-direction support box; 18. Y-direction linear guide motor; 19. Z-direction linear guide motor; 171. Support box; 20. Displacement platform; 21. Lens angle adjustment component; 22. Stitching lens; 23. Lens X-axis displacement; 24. Lens Z-axis displacement stage; 25. Lens turntable; 211. Mounting bracket; 212. Curved surface; 213. Lens mount; 214. Lens locking block; 30. Target X-direction guide rail; 31. Target Z-direction guide rail; 32. Target placement rack; 33. Target; 34. Target Z-direction linear guide rail motor; 35. Target yaw guide rail; 36. Target yaw motor; 37. Target X-direction linear guide rail motor; 40. Light source control box; 41. Light source; 42. Aperture. Detailed Implementation
[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0020] See Figure 1-2 As shown in 6, 10, and 16; The focal plane stitching device based on multiple degrees of freedom described in this embodiment of the invention includes: A displacement stage assembly has two X-direction guide rails 10, and a Y-direction guide rail 11 that can move along its length direction is provided between the two X-direction guide rails 10. A Z-direction guide rail 12 that can follow its movement is provided on the Y-direction guide rail 11. A lens assembly is mounted on a Z-direction guide rail 12. The lens assembly has a displacement platform 20, on which a lens angle adjustment component 21 is mounted, and on which a splicing lens 22 is mounted. The target assembly has a target placement frame 32, a target 33 is installed in the middle of the top surface of the target placement frame 32, the target 33 is set on the target deflection guide rail 35, and a target deflection motor 36 is set below the target deflection guide rail 35. The output end of the target deflection motor 36 drives the target deflection guide rail 35 to swing. A light source assembly, wherein the light-emitting end of the light source assembly is positioned toward the target assembly.
[0021] This application achieves the swinging of the target 33 through the target swing guide rail 35, thereby enabling the entire device to perform detector surface splicing during the splicing process.
[0022] See Figure 2-5 As shown; The displacement platform assembly includes a platform base 13, with a guide groove 14 formed by an inward recess in the middle of the top surface of the platform base 13. The two ends of the guide groove 14 extend to the two end faces of the platform base 13. Two X-direction guide rails 10 are respectively installed on the side walls of the guide groove 14, and an X-direction linear guide rail motor 15 is provided on the X-direction guide rail 10.
[0023] The Y-direction guide rail 11 is installed in the middle of the top surface of the Y-direction support box 16. The two ends of the Y-direction support box 16 are connected to the X-direction guide rail 10. The Y-direction support box 16 moves along the X-direction guide rail 10 under the drive of the X-direction linear guide rail motor 15.
[0024] The Z-direction guide rail 12 is installed between the Z-direction support box 17 and the support box 171. The Z-direction support box 17 is located inside the support box 171. The support box 171 is installed on the Y-direction guide rail 11. The Y-direction guide rail 11 is equipped with a Y-direction linear guide motor 18. The Z-direction support box 17 moves along the Y-direction guide rail 11 under the drive of the Y-direction linear guide motor 18. A Z-direction linear guide motor 19 is installed between the Z-direction support box 17 and the support box 171. The Z-direction linear guide motor 19 drives the support box 171 to move along the Z-direction guide rail 12. The target assembly is installed in the middle of the top surface of the Z-direction support box 17. The light source assembly is located inside the Z-direction support box 17.
[0025] This application achieves preliminary adjustment of the lens assembly, target assembly, and light source assembly by means of X-direction guide rail 10, Y-direction guide rail 11, and Z-direction guide rail 12, so as to bring them closer to the preset position.
[0026] See Figure 6-9 As shown; The displacement platform 20 includes a lens X-direction displacement stage 23 and a lens Z-direction displacement stage 24. The lens X-direction displacement stage 23 is disposed on the top surface of the Z-direction support box 17 near the edge. The lens Z-direction displacement stage 24 can move along the length direction of the lens X-direction displacement stage 23. A lens turntable 25 is installed at the top of the lens Z-direction displacement stage 24, and the lens turntable 25 can move along the height direction of the lens Z-direction displacement stage 24. The lens angle adjustment component 21 is installed on the lens turntable 25.
[0027] This application uses the X-direction displacement stage 23 and the lens Z-direction displacement stage 24 to fine-tune the lens assembly in order to precisely adjust the focal plane stitching position.
[0028] The lens angle adjustment assembly 21 includes a mounting bracket 211, one end of which is connected to the lens turntable 25. The top surface of the mounting bracket 211 away from the lens turntable 25 has an arc-shaped surface 212. The splicing lens 22 is mounted on a lens mounting base 213, which is movable along the arc-shaped surface 212. The lens mounting base 213 is also provided with a lens locking block 214, which is located on one side of the splicing lens 22.
[0029] By adjusting the lens mount 213, the lens mount 213 can be moved on the arc surface 212 of the mounting bracket 211, and the lens mount 213 can be locked by the lens locking block 214. The lens mount 213 drives the splicing lens 22 to different positions on the arc surface 212, thereby realizing the axial angle adjustment of the splicing lens 22. The lens turntable 25 drives the splicing lens 22 to rotate through the lens mount 213, thereby realizing the circumferential angle adjustment.
[0030] See Figure 10-15 As shown; The target assembly includes a target X-direction guide rail 30 and a target Z-direction guide rail 31. The target X-direction guide rail 30 moves along the height direction of the Z-direction guide rail 12, and the target Z-direction guide rail 31 can move along the length direction of the target X-direction guide rail 30.
[0031] The target placement frame 32 can move along the length of the target X-direction guide rail 30. The target X-direction guide rail 30 is connected to a target X-direction linear guide rail motor 37. The target placement frame 32 moves along the target X-direction guide rail 30 under the drive of the target X-direction linear guide rail motor 37. The target Z-direction guide rail 31 is located on one side of the target 33. The target Z-direction guide rail 31 is connected to a target Z-direction linear guide rail motor 34. The target Z-direction linear guide rail motor 34 drives the target 33 to move along the target Z-direction guide rail 31.
[0032] This application achieves the position adjustment of the target 33 through the target X-direction guide rail 30, the target Z-direction guide rail 31, and the target yaw guide rail 35, and the target yaw guide rail 35 can adapt to curved surface splicing.
[0033] See Figure 16-19 As shown; The light source assembly includes a light source control box 40, which is mounted on the bottom wall of the Z-direction support box 17. The end of the light source control box 40 near the bottom wall of the Z-direction support box 17 has a light source 41, and the other end of the light source control box 41 away from the Z-direction support box 17 is connected to an aperture 42. The aperture 42 is mounted on the top wall of the Z-direction support box 17 and is positioned facing the target 33.
[0034] In practice, by activating the X-direction linear guide motor 15 of the displacement stage, the Y-direction support box 16 and the Z-direction support box 17 move along the length of the X-direction guide rail 10. Then, the Y-direction linear guide motor 18 is activated, causing the Y-direction support box 16 and the Z-direction support box 17 to move along the Y-direction guide rail 12. The Z-direction support box 17 is then moved to the preset position to be spliced. After reaching the preset position, the Z-direction linear guide motor 19 is activated, causing the Z-direction support box 17 to move along the Z-direction guide rail 12. After moving to the preset position, the light source 41 inside the Z-direction support box 17 is activated, causing the light source 41 to emit light of the corresponding spectrum. The light illuminates the detectors to be spliced through the lens. By adjusting the Z-direction displacement stage 24 of the lens, the detector image is made clear. After the image is clear, the coordinates of its relative position are recorded. The detectors are adjusted so that two or more detectors are in a coplanar and collinear state, and finally, the detector focal plane splicing that meets the specifications is completed.
[0035] This application increases the number of degrees of freedom, thereby increasing the number of adjustable mechanisms during the splicing process, which can cope with splicing forms with different structures and angles.
[0036] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A focal plane splicing device based on multiple degrees of freedom, characterized in that, include: The displacement stage assembly has two X-direction guide rails (10), and a Y-direction guide rail (11) that can move along its length direction is provided between the two X-direction guide rails (10). A Z-direction guide rail (12) that can follow its movement is provided on the Y-direction guide rail (11). The lens assembly is mounted on the Z-direction guide rail (12), the lens assembly has a displacement platform (20), a lens angle adjustment component (21) is mounted on the displacement platform (20), and a splicing lens (22) is mounted on the lens angle adjustment component (21). The target assembly has a target placement frame (32), a target (33) is installed in the middle of the top surface of the target placement frame (32), the target (33) is set on the target deflection guide rail (35), and a target deflection motor (36) is set below the target deflection guide rail (35). The output end of the target deflection motor (36) drives the target deflection guide rail (35) to swing. A light source assembly, wherein the light-emitting end of the light source assembly is positioned toward the target assembly.
2. The focal plane stitching device based on multiple degrees of freedom according to claim 1, characterized in that: The displacement platform assembly includes a platform base (13), with a guide groove (14) formed by an inward recess in the middle of the top surface of the platform base (13). The two ends of the guide groove (14) extend to the two end faces of the platform base (13). Two X-direction guide rails (10) are respectively installed on the side wall of the guide groove (14). An X-direction linear guide rail motor (15) capable of moving along its length direction is provided on the X-direction guide rail (10).
3. The focal plane stitching device based on multiple degrees of freedom according to claim 2, characterized in that: The Y-direction guide rail (11) is installed in the middle of the top surface of the Y-direction support box (16). The two ends of the Y-direction support box (16) are connected to the X-direction guide rail (10). The Y-direction support box (16) moves along the X-direction guide rail (10) under the drive of the X-direction linear guide rail motor (15).
4. The focal plane stitching device based on multiple degrees of freedom according to claim 3, characterized in that: The Z-direction guide rail (12) is installed between the Z-direction support box (17) and the support box (171). The Z-direction support box (17) is located inside the support box (171). The support box (171) is installed on the Y-direction guide rail (11). The Y-direction guide rail (11) is equipped with a Y-direction linear guide rail motor (18). The Z-direction support box (17) moves along the Y-direction guide rail (11) under the drive of the Y-direction linear guide rail motor (18). A Z-direction linear guide rail motor (19) is provided between the Z-direction support box (17) and the support box (171). The Z-direction linear guide rail motor (19) drives the support box (171) to move along the Z-direction guide rail (12). The target assembly is installed in the middle of the top surface of the Z-direction support box (17). The light source assembly is located inside the Z-direction support box (17).
5. The focal plane stitching device based on multiple degrees of freedom according to claim 1, characterized in that: The lens angle adjustment assembly (21) includes a mounting bracket (211), one end of which is connected to the lens turntable (25), and the top surface of the mounting bracket (211) away from the lens turntable (25) has an arc surface (212); the splicing lens (22) is mounted on a lens mounting base (213), the lens mounting base (213) can move along the arc surface (212), and a lens locking block (214) is also provided on the lens mounting base (213), the lens locking block (214) being located on one side of the splicing lens (22).
6. The focal plane stitching device based on multiple degrees of freedom according to claim 1, characterized in that: The displacement platform (20) includes a lens X-direction displacement stage (23) and a lens Z-direction displacement stage (24). The lens X-direction displacement stage (23) is located on the top surface of the Z-direction support box (17) near the edge. The lens Z-direction displacement stage (24) can move along the length direction of the lens X-direction displacement stage (23). A lens turntable (25) is installed at the top of the lens Z-direction displacement stage (24), and the lens turntable (25) can move along the height direction of the lens Z-direction displacement stage (24). The lens angle adjustment component (21) is installed on the lens turntable (25).
7. A focal plane stitching device based on multiple degrees of freedom according to claim 1, characterized in that: The target assembly includes a target X-direction guide rail (30) and a target Z-direction guide rail (31). The target X-direction guide rail (30) moves along the height direction of the Z-direction guide rail (12), and the target Z-direction guide rail (31) can move along the length direction of the target X-direction guide rail (30).
8. A focal plane stitching device based on multiple degrees of freedom according to claim 7, characterized in that: The target placement frame (32) can move along the length of the target X-direction guide rail (30). The end of the target X-direction guide rail (30) is connected to the target X-direction linear guide rail motor (37). The target placement frame (32) moves along the target X-direction guide rail (30) under the drive of the target X-direction linear guide rail motor (37). The target Z-direction guide rail (31) is set on one side of the target (33). The target Z-direction guide rail (31) is equipped with a target Z-direction linear guide rail motor (34) on the side of the target Z-direction guide rail (31) close to the target (33). The target Z-direction linear guide rail motor (34) drives the target (33) to move along the target Z-direction guide rail (31).
9. A focal plane stitching device based on multiple degrees of freedom according to claim 1, characterized in that: The light source assembly includes a light source control box (40), which is installed on the bottom wall of the Z-direction support box (17). The end of the light source control box (40) near the bottom wall of the Z-direction support box (17) has a light source (41), and the other end of the light source control box (40) away from the Z-direction support box (17) is connected to an aperture (42), which is set toward the target (33).