Double-ring flexible centering and mirror-adjusting chamber and lens centering and tilt adjustment method

Abstract

The present invention relates to the field of optical lens technology, and in particular to a dual-ring flexible centering and adjusting mirror chamber and a lens centering and tilt adjustment method. The dual-ring flexible centering and adjusting mirror chamber comprises: a lens barrel, at least two dual-ring flexible adjusting mirror chamber assemblies, and a lens pressure ring. The lens barrel is provided with a receiving cavity, and the dual-ring flexible adjusting mirror chamber assembly is disposed within the receiving cavity; each dual-ring flexible adjusting mirror chamber assembly comprises a lens, a dual-ring flexible adjusting mirror chamber, and a lens pressure ring; the dual-ring flexible adjusting mirror chamber is provided with multiple double-row flexible hinges; the lens is disposed within the dual-ring flexible adjusting mirror chamber, and the lens pressure ring is screwed to the dual-ring flexible adjusting mirror chamber via threads to secure the lens within the dual-ring flexible adjusting mirror chamber. The lens barrel pressure ring secures each dual-ring flexible adjusting mirror chamber assembly within the receiving cavity. The advantages of the present invention are that the present invention can achieve precise adjustment of the lens position, and does not introduce excess stress to the lens during the adjustment process, thereby improving the adjustment efficiency and centering accuracy of the lens's eccentricity and tilt.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to a double-ring flexible centering and mirror-adjusting chamber and a lens centering and tilt adjustment method. Background Art

[0002] Centering and adjustment are particularly important for precision optical lenses. Relying solely on the self-centering function of spacers and the precision of the fit between the lens barrel and the lens cannot achieve high-precision centering requirements. Therefore, for high-precision optical lenses, more complex adjustment methods are required to ensure that the lens' centering accuracy meets design requirements. Centering accuracy is a critical parameter for optical lenses; any deviation from the center will seriously affect the quality and performance of the optical system.

[0003] Lens centering and adjustment technology is widely used in the medical, industrial and scientific research fields. In the medical field, the centering and adjustment of optical lenses can ensure that high-precision microscopes and laser therapy devices have a clear field of view and accurate focus, thereby improving the success rate and safety of surgery. In the industrial field, the centering adjustment of the focusing lens can focus the laser beam to an extremely small point, realizing high-precision cutting, welding and punching processes. In addition, the centering adjustment of the lithography lens group can ensure the precise position of the lens group to ensure the accuracy and stability of the lithography process. In the field of scientific research, the centering adjustment of the telescope lens can help astronomers observe more distant galaxies and celestial bodies, and the centering adjustment of the star-sensitive detection lens can achieve higher positioning and navigation accuracy.

[0004] Lens centering is typically performed actively using a centering measurement system. Conventional lens centering systems typically use a single-ring chamber. The tilt and eccentricity of the lens chamber are then adjusted using screws on the lens barrel, or the chamber is reground based on the eccentricity measured by a centering instrument until the desired position is achieved. However, this method suffers from poor linearity, long setup times, and low efficiency. Summary of the Invention

[0005] In view of this, the present invention aims to provide a double-ring flexible centering and adjusting mirror chamber and a lens centering and tilt adjustment method, wherein a plurality of double-row flexible hinges are arranged between the first ring and the second ring of the double-ring flexible adjusting mirror chamber, and the eccentricity and tilt of the lens are achieved by adjusting the flexible hinges by adjusting the screws.

[0006] To achieve the above-mentioned purpose, the technical solution created by the present invention is implemented as follows: a double-ring flexible centering mirror adjusting chamber, comprising: a lens barrel, the lens barrel is provided with a accommodating cavity and a first thread; at least two double-ring flexible mirror adjusting chamber assemblies, each double-ring flexible mirror adjusting chamber assembly is arranged in the accommodating cavity; two adjacent double-ring flexible mirror adjusting chamber assemblies are spaced by a spacer ring; each double-ring flexible mirror adjusting chamber assembly includes a lens, a double-ring flexible mirror adjusting chamber and a lens pressure ring; the double-ring flexible mirror adjusting chamber is provided with a plurality of double-row flexible hinges; the lens is arranged in the double-ring flexible mirror adjusting chamber, and the lens pressure ring is screwed to the double-ring flexible mirror adjusting chamber by a thread to fix the lens in the double-ring flexible mirror adjusting chamber; the double-row flexible hinge is used to adjust the eccentricity and / or tilt of the lens; the lens barrel pressure ring, the lens barrel pressure ring is provided with a second thread adapted to the first thread, and the lens barrel pressure ring fixes each double-ring flexible mirror adjusting chamber assembly in the accommodating cavity.

[0007] Furthermore, the double-ring flexible mirror adjusting chamber includes multiple double-row flexible hinges, a first circular ring and a second circular ring, and the first circular ring is arranged on the outside of the second circular ring; the multiple double-row flexible hinges are evenly arranged between the inner wall of the first circular ring and the outer wall of the second circular ring, and the two ends of the multiple double-row flexible hinges are respectively connected to the inner wall of the first circular ring and the outer wall of the second circular ring.

[0008] Furthermore, a limiting portion and a third thread are provided on the second ring, and a fourth thread matching the third thread is provided on the lens pressing ring; the fourth thread of the lens pressing ring is screwed with the third thread, so that the lens abuts against the limiting portion, thereby fixing the lens.

[0009] Furthermore, each of the multiple double-row flexible hinges includes two flexible hinge units; the two flexible hinge units are spaced apart along the axial direction of the double-ring flexible mirror adjusting chamber; each flexible hinge unit includes two relatively arranged flexible parts and an adjustment screw, and the two flexible parts are provided with threaded holes that are compatible with the adjustment screws, and the adjustment screws pass through and are screwed into the threaded holes in turn.

[0010] Furthermore, each flexible part includes a connecting block and two flexible sheets, one end of one flexible sheet is connected to the inner wall of the first ring, and the other end is connected to the connecting block; one end of the other flexible sheet is connected to the outer wall of the second ring, and the other end is connected to the connecting block; the two flexible sheets are arranged in a V shape; a threaded hole is provided at the center of the connecting block.

[0011] Furthermore, the plurality of double-row flexible hinges include four double-row flexible hinges.

[0012] Furthermore, a plurality of first adjustment hole groups are evenly arranged on the first ring, and each first adjustment hole group includes two first adjustment holes.

[0013] Furthermore, a plurality of second adjustment hole groups are evenly arranged on the lens barrel, and each second adjustment hole group includes at least two second adjustment holes.

[0014] A lens centering and tilt adjustment method is implemented based on the above-mentioned dual-ring flexible centering and adjusting chamber and centering instrument, comprising the following steps:

[0015] S1: The installed and adjusted double-ring flexible centering and mirror-adjusting chamber is placed on a centering instrument, and the centering instrument detects the eccentricity data and tilt data of each lens in the double-ring flexible centering and mirror-adjusting chamber.

[0016] S2: First, one of the lenses is selected for adjustment; based on the tilt data of the lens, its tilt direction is determined, and based on the tilt direction, two flexible hinge units among the multiple double-row flexible hinges to be adjusted are determined.

[0017] S3: Adjust the two flexible hinge units determined in step S2 until the inclination of the lens is adjusted to within the tolerance range.

[0018] S4: After the tilt adjustment of the lens is completed, the eccentric position of the lens is determined according to the eccentricity data of the lens, and then two flexible hinge units among the multiple double-row flexible hinges to be adjusted are determined.

[0019] S5: Adjust the two flexible hinge units determined in step S4 until the eccentricity of the lens is adjusted to within the tolerance range.

[0020] S6: Repeat steps S1-S5 until all lens adjustments are completed.

[0021] Furthermore, in step S2, two flexible hinge units among the multiple double-row flexible hinges to be adjusted are determined, and the specific steps are as follows:

[0022] S21: determining the adjustment directions of the front transmission surface center O1 and the rear transmission surface center O2 of the lens according to the tilt direction of the lens; wherein the adjustment directions of the front transmission surface center O1 and the rear transmission surface center O2 are opposite to each other.

[0023] S22: According to the adjustment direction determined in step S21, a flexible hinge unit located on the front transmission surface side and a flexible hinge unit located on the flexible side of the rear transmission surface are selected, and the two flexible hinge units are arranged opposite to each other.

[0024] Furthermore, in step S4, it is determined that the two flexible hinges to be adjusted are a double-row flexible hinge close to the eccentric position of the lens.

[0025] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0026] 1) The present invention can achieve precise adjustment of the lens position, and will not introduce excess stress to the lens during the adjustment process, thereby improving the adjustment efficiency and centering accuracy of the lens's eccentricity and tilt.

[0027] 2) A plurality of double-row flexible hinges are provided between the first and second rings of the double-ring flexible mirror adjusting chamber, and the eccentricity and tilt of the lens are adjusted by adjusting the flexible hinges by adjusting screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 is a schematic structural diagram of a lens barrel provided according to an embodiment of the present invention;

[0030] Figure 2 2 is a schematic structural diagram of a double-ring flexible centering and mirror adjustment chamber according to an embodiment of the present invention;

[0031] Figure 3 2. This is a schematic structural diagram of a dual-ring flexible mirror adjustment chamber of a first vision device provided by an embodiment of the present invention;

[0032] Figure 4 2 is a schematic structural diagram of a dual-ring flexible mirror adjustment chamber for second vision provided by an embodiment of the present invention;

[0033] Figure 5 yes Figure 3 Cross-sectional view of the double-ring flexible mirror adjustment chamber along AA;

[0034] Figure 6 2 is a schematic structural diagram of a lens barrel pressure ring provided according to an embodiment of the present invention.

[0035] The accompanying drawings include: 1. lens barrel; 11. accommodating cavity; 12. first thread; 13. second adjustment hole; 2. double-ring flexible mirror adjusting chamber assembly; 21. lens; 22. double-ring flexible mirror adjusting chamber; 221. first circular ring; 2211. first adjustment hole; 222. second circular ring; 2221. limiting portion; 2222. third thread; 223. flexible hinge unit; 2231. flexible part; 2232. adjustment screw; 2233. connecting block; 2234. flexible sheet; 23. lens pressure ring; 3. lens barrel pressure ring; 31. second thread; 4. spacer. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 used to explain the present invention and do not constitute a limitation of the present invention.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0041] like Figures 1 to 6 As shown, an embodiment of the present invention provides a dual-ring flexible centering and tuning chamber, comprising: a lens barrel 1, at least two dual-ring flexible tuning chamber assemblies 2, and a lens barrel pressure ring 3. The lens barrel 1 has a receiving cavity 11 and a first thread 12. The first thread 12 is an internal thread and is provided at one end of the lens barrel 1.

[0042] Each dual-ring flexible mirror-adjusting chamber assembly 2 is disposed within the accommodating cavity 11, with two adjacent dual-ring flexible mirror-adjusting chamber assemblies 2 spaced apart by a spacer ring 4. The lens barrel pressing ring 3 is provided with a second thread 31 adapted to the first thread 12. The second thread 31 is an external thread. The second thread 31 of the lens barrel pressing ring 3 is threadedly engaged with the first thread 12 of the lens barrel 1, thereby securing each dual-ring flexible mirror-adjusting chamber assembly 2 within the accommodating cavity 11.

[0043] Each dual-ring flexible mirror-tuning chamber assembly 2 includes a lens 21, a dual-ring flexible mirror-tuning chamber 22, and a lens pressure ring 23. Multiple double-row flexible hinges are evenly distributed on the dual-ring flexible mirror-tuning chamber 22. The lens 21 is positioned within the dual-ring flexible mirror-tuning chamber 22. The lens pressure ring 23 is threadedly connected to the dual-ring flexible mirror-tuning chamber 22, securing the lens 21 within the dual-ring flexible mirror-tuning chamber 22. The multiple double-row flexible hinges are used to adjust the eccentricity and tilt of the lens 21.

[0044] The double-ring flexible mirror adjustment chamber 22 includes multiple double-row flexible hinges, a first ring 221, and a second ring 222. The first ring 221 is sleeved onto the outside of the second ring 222. The double-row flexible hinges are evenly spaced between the inner wall of the first ring 221 and the outer wall of the second ring 222, with the ends of the multiple double-row flexible hinges connected to the inner wall of the first ring 221 and the outer wall of the second ring 222, respectively.

[0045] The second circular ring 222 is provided with a limiting portion 2221 and a third thread 2222, and the lens pressure ring 23 is provided with a fourth thread adapted to the third thread 2222. The fourth thread of the lens pressure ring 23 is screwed to the third thread 2222, so that the lens 21 abuts against the limiting portion 2221, thereby fixing the lens 21. In this embodiment, the third thread 2222 is an internal thread, and the fourth thread is an external thread. The present invention does not limit the specifications and models of the lenses 21 in each dual-ring flexible mirror adjustment chamber assembly 2, that is, the specifications and models of the lenses 21 in two adjacent dual-ring flexible mirror adjustment chamber assemblies 2 can be the same or different.

[0046] In this embodiment, the multiple double-row flexible hinges include four double-row flexible hinges. Each double-row flexible hinge includes two flexible hinge units 223. The two flexible hinge units 223 are spaced apart along the axial direction of the double-ring flexible mirror adjustment chamber 22. Each flexible hinge unit 223 includes two relatively arranged flexible parts 2231 and an adjustment screw 2232. Each flexible part 2231 includes a connecting block 2233 and two flexible sheets 2234, one end of which is connected to the inner wall of the first circular ring 221, and the other end is connected to the connecting block 2233. One end of the other flexible sheet 2234 is connected to the outer wall of the second circular ring 222, and the other end is connected to the connecting block 2233. The two flexible sheets 2234 are arranged in a V shape, and a threaded hole is provided at the center of the connecting block 2233, which is adapted to the adjustment screw 2232. In this embodiment, the adjustment screw 2232 is a hexagon socket screw. The adjusting screws 2232 pass through and are screwed into the threaded holes in sequence. When the adjusting screws 2232 are tightened, the two corresponding flexible parts 2231 approach each other and stretch, thereby changing the position of the second ring 222, thereby adjusting the eccentricity and / or tilt of the lens 21, and no unnecessary stress will be introduced to the lens 21 during the adjustment process.

[0047] A plurality of first adjustment hole groups are evenly distributed throughout the first ring 221. In this embodiment, the plurality of first adjustment hole groups includes four first adjustment hole groups, each corresponding to one of the four double-row flexible hinges. Each first adjustment hole group includes two first adjustment holes 2211, which are used to adjust the corresponding adjustment screw 2232. Adjusting the adjustment screw 2232 adjusts the corresponding two flexible hinge units 223, thereby adjusting the decentration and tilt of the lens 21.

[0048] Furthermore, multiple second adjustment hole groups are evenly distributed on the lens barrel 1. In this embodiment, the multiple second adjustment hole groups include four second adjustment hole groups, each of which includes four second adjustment holes 13. The two second adjustment holes 13 in each second adjustment hole group correspond to the two first adjustment holes 2211 in the first adjustment hole group on one of the first circular rings 221, and the other two second adjustment holes 13 correspond to the two first adjustment holes 2211 in the first adjustment hole group on the other first circular ring 221. When the coaxiality and tilt of the lens 21 need to be adjusted, an adjustment member (such as an Allen wrench) that matches the adjustment screw 2232 can be used to sequentially pass through the corresponding second adjustment hole 13 and first adjustment hole 2211 to adjust the adjustment screw 2232.

[0049] A lens centering and tilt adjustment method is implemented based on the above-mentioned dual-ring flexible centering and adjusting chamber and centering instrument, comprising the following steps:

[0050] S1: The assembled dual-ring flexible centering and tuning chamber is placed on a centering instrument. The centering instrument detects the decentration and tilt data of each lens 21 in the dual-ring flexible centering and tuning chamber. In this embodiment, the decentration of lens 21 refers to the deviation of the center of lens 21 from the optical axis of lens 21.

[0051] S2: First, one of the lenses 21 is selected for adjustment; based on the tilt data of the selected lens 21, its tilt direction is determined, and based on the tilt direction, two flexible hinge units 223 of the multiple double-row flexible hinges to be adjusted are determined.

[0052] Determining two flexible hinge units 223 among the multiple double-row flexible hinges to be adjusted, specifically comprises the following steps:

[0053] S21: Determine the adjustment directions of the front transmission surface center O1 and the rear transmission surface center O2 of the lens 21 according to the tilt direction of the lens 21; wherein the adjustment direction of the front transmission surface center O1 and the adjustment direction of the rear transmission surface center O2 are opposite to each other, and at the same time, the adjustment directions of the front transmission surface center O1 and the rear transmission surface center O2 are opposite to the tilt direction.

[0054] In this embodiment, the tilt direction of the lens 21 refers to the angle between the line connecting the center O1 of the front transmissive surface and the center O2 of the rear transmissive surface and the optical axis of the lens 21, that is, the tilt angle and direction of the plane on which the lens 21 is located relative to the reference plane. The reference plane is the plane on which the lens 21 is located when it is not tilted.

[0055] S22: According to the adjustment direction determined in step S21, a flexible hinge unit 223 located on the front transmission surface side and a flexible hinge unit 223 located on the rear transmission surface side are selected, and the two flexible hinge units 223 are arranged opposite to each other.

[0056] S3: Adjust the two flexible hinge units 223 in step S2 until the inclination of the lens 21 is adjusted to within the tolerance range.

[0057] S4: After adjusting the inclination of the selected lens 21, the eccentric position of the selected lens 21 is determined based on the eccentricity data of the selected lens 21, and then the adjustment direction is determined, and finally the two flexible hinge units 223 to be adjusted are determined. The two flexible hinge units 223 are a double-row flexible hinge near the center of the lens 21.

[0058] S5: Adjust the double-row flexible hinges in step S4 until the eccentricity of the lens 21 is adjusted to within the tolerance range, thereby completing the centering adjustment of the lens 21.

[0059] S6: Repeat steps S1-S5 until all lens adjustments are completed.

[0060] The following describes a lens centering and tilt adjustment method in conjunction with a specific embodiment:

[0061] First, place the assembled and adjusted dual-ring flexible centering and adjustment chamber on the centering instrument, and then adjust the tilt and eccentricity of one lens. The four flexible hinge units 223 in one row (defined as the first row) of the four double-row flexible hinges evenly distributed between the first ring 221 and the second ring 222 are named A1, B1, C1, and D1, with A1 and C1 positioned opposite each other, and B1 and D1 positioned opposite each other. The four flexible hinge units 223 in the other row (defined as the second row) are named A2, B2, C2, and D2, with A2 and C2 positioned opposite each other, and B2 and D2 positioned opposite each other. A1 and A2, B1 and B2, C1 and C2, and D1 and D2 are all spaced apart along the axis of the dual-ring flexible adjustment chamber 22.

[0062] The center of the front transmissive surface of lens 21 is O1, located on the side of the four flexible hinge units 223 in the first row. The center of the rear transmissive surface of lens 21 is O2, located on the side of the four flexible hinge units 223 in the second row. Measurements by the centering instrument show that O1 is tilted toward C1, and O2 is tilted toward A2. To adjust the tilt, O1 needs to be adjusted toward A1 and O2 toward C2. Specifically, tighten the adjustment screws 2232 at A2 and 2232 at C1 until the centering instrument detects that the lens tilt is within the tolerance range.

[0063] After adjusting the tilt of lens 21, the next step is to adjust the decentration of lens 21. The centering instrument's measurement indicates that the center O of lens 21 is deviated toward the area C1 and C2. To adjust the center O of lens 21 to the ideal position, it is necessary to adjust the center O of lens 21 toward the area A1 and A2. Specifically, tighten the adjustment screws 2232 at C1 and 2232 at C2 to move the center O of lens 21 toward the area A1 and A2 until the centering instrument detects that the decentration of lens 21 is within the tolerance range, completing the coaxial adjustment of lens 21.

[0064] After the adjustment of the selected lens 21 is completed, another lens 21 is adjusted using the same method until all lenses 21 are adjusted to within the required tolerance range.

[0065] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A double-ring flexible centering mirror adjustment chamber, characterized in that: include: A lens barrel, wherein the lens barrel is provided with a receiving cavity and a first thread; At least two double-ring flexible mirror adjustment chamber assemblies, each of which is arranged in the accommodating cavity; two adjacent double-ring flexible mirror adjustment chamber assemblies are spaced apart by a spacer ring; Each of the dual-ring flexible mirror adjustment chamber components includes a lens, a dual-ring flexible mirror adjustment chamber, and a lens pressure ring; the dual-ring flexible mirror adjustment chamber is provided with a plurality of double-row flexible hinges; the lens is arranged in the dual-ring flexible mirror adjustment chamber, and the lens pressure ring is screwed to the dual-ring flexible mirror adjustment chamber via threads to fix the lens in the dual-ring flexible mirror adjustment chamber; the double-row flexible hinge is used to adjust the eccentricity and / or tilt of the lens; The double-ring flexible mirror adjustment chamber includes the multiple double-row flexible hinges, a first circular ring, and a second circular ring, wherein the first circular ring is sleeved on the outside of the second circular ring; the multiple double-row flexible hinges are evenly arranged between the inner wall of the first circular ring and the outer wall of the second circular ring, and the two ends of the multiple double-row flexible hinges are respectively connected to the inner wall of the first circular ring and the outer wall of the second circular ring; The second ring is provided with a limiting portion and a third thread, and the lens pressing ring is provided with a fourth thread adapted to the third thread; The fourth thread of the lens pressing ring is screwed into the third thread, so that the lens abuts against the limiting portion, thereby fixing the lens; Each of the plurality of double-row flexible hinges comprises two flexible hinge units; the two flexible hinge units are spaced apart along the axis of the double-ring flexible mirror adjustment chamber; each flexible hinge unit comprises two oppositely disposed flexible members and an adjustment screw, the two flexible members are provided with threaded holes adapted to the adjustment screws, and the adjustment screws are sequentially passed through and screwed into the threaded holes; The lens barrel pressing ring is provided with a second thread adapted to the first thread, and the lens barrel pressing ring fixes each of the dual-ring flexible mirror adjustment chamber components in the accommodating cavity.

2. The double-ring flexible centering and mirror adjustment chamber according to claim 1 is characterized in that: Each of the flexible parts includes a connecting block and two flexible sheets, one end of one of the flexible sheets is connected to the inner wall of the first circular ring, and the other end is connected to the connecting block; one end of the other flexible sheet is connected to the outer wall of the second circular ring, and the other end is connected to the connecting block; the two flexible sheets are arranged in a V shape; and a threaded hole is provided at the center of the connecting block.

3. The double-ring flexible centering and mirror adjustment chamber according to claim 1 is characterized in that: The plurality of double-row flexible hinges includes four double-row flexible hinges.

4. The double-ring flexible centering and mirror-adjusting chamber according to claim 1, characterized in that: A plurality of first adjustment hole groups are evenly arranged on the first ring, and each of the first adjustment hole groups includes two first adjustment holes.

5. The double-ring flexible centering and mirror adjustment chamber according to claim 4 is characterized in that: A plurality of second adjustment hole groups are evenly arranged on the lens barrel, and each second adjustment hole group includes at least two second adjustment holes.

6. A lens centering and tilt adjustment method, based on the dual-ring flexible centering and adjusting chamber and the centering device according to any one of claims 1 to 5, characterized in that: The steps include: S1: placing the installed and adjusted dual-ring flexible centering and mirror-adjusting chamber on the centering instrument, and the centering instrument detecting the eccentricity data and tilt data of each lens in the dual-ring flexible centering and mirror-adjusting chamber; S2: First, one of the lenses is selected for adjustment; the tilt direction of the lens is determined based on the tilt data of the lens, and two flexible hinge units in the plurality of double-row flexible hinges to be adjusted are determined based on the tilt direction; S3: Adjusting the two flexible hinge units determined in step S2 until the inclination of the lens is adjusted to within a tolerance range; S4: After the tilt adjustment of the lens is completed, the eccentric position of the lens is determined according to the eccentricity data of the lens, and then two flexible hinge units in the plurality of double-row flexible hinges to be adjusted are determined; S5: adjusting the two flexible hinge units determined in step S4 until the eccentricity of the lens is adjusted to within a tolerance range; S6: Repeat steps S1-S5 until all lens adjustments are completed.

7. The lens centering and tilt adjustment method according to claim 6, characterized in that: In step S2, two flexible hinge units in the plurality of double-row flexible hinges to be adjusted are determined, and the specific steps are as follows: S21: determining, according to the tilt direction of the lens, an adjustment direction of the center O1 of the front transparent surface and the center O2 of the rear transparent surface of the lens; wherein the adjustment direction of the center O1 of the front transparent surface is opposite to the adjustment direction of the center O2 of the rear transparent surface; S22: According to the adjustment direction determined in step S21, a flexible hinge unit located on the front transmission surface side and a flexible hinge unit located on the flexible side of the rear transmission surface are selected, and the two flexible hinge units are arranged opposite to each other.

8. The lens centering and tilt adjustment method according to claim 6, characterized in that: In step S4, it is determined that the two flexible hinges to be adjusted are a double-row flexible hinge close to the eccentric position of the lens.

Images