Precise adjusting device for aspherical mirror of high-precision optical system

Abstract

The utility model relates to a precise adjusting device for an aspherical mirror of a high-precision optical system, which comprises a fixed plate, an outer cylinder is arranged on the fixed plate, the fixed plate is connected with the axis of the outer cylinder through a locking screw, four rotating adjusting screws are uniformly distributed on the fixed plate along the circumferential direction of the locking screw, a middle cylinder is placed in the outer cylinder, an inner cylinder is placed in the middle cylinder, and the inner cylinder is connected with the outer cylinder. Four movable adjusting screws are evenly distributed on the outer wall of the middle cylinder, and a reflecting mirror is placed in the inner cylinder. Through the sleeve doll type structure of the outer cylinder, the middle cylinder and the inner cylinder, independent adjustment in five dimensions can be achieved through cooperation of the four rotating adjusting screws and the four movable adjusting screws, the debugging time is greatly shortened, and the debugging difficulty is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of optics, and in particular relates to a precision adjustment device for an aspherical mirror of a high-precision optical system. Background Art

[0002] In modern optical instruments, laser systems, astronomical observations, and precision machining, reflectors are core optical components. The accuracy and stability of their angle adjustment directly determine the performance of the entire system. In collimator assemblies, the secondary mirror is a key component of the reflective system. Within collimator optical systems, it deflects light, reduces the overall dimensions of the optical machine, and amplifies the light. The collimator system's ability to produce stable and highly precise parallel light depends on the secondary mirror's surface shape and its actual position relative to the primary mirror. During collimator assembly and adjustment, the smaller the error between the secondary mirror's theoretical and actual positions, the higher the collimator system's accuracy. Currently, the secondary mirror structure of collimator cassettes primarily utilizes a "three-up, three-pull" fixing method. However, during actual assembly and adjustment, single-directional translation or tilting is often required. This "three-up, three-pull" fixing method often requires simultaneous adjustment in multiple dimensions, making single-dimensional adjustment difficult. Utility Model Content

[0003] Therefore, the present invention aims to solve the problem in the prior art that it is difficult to adjust a single dimension of the reflector.

[0004] To this end, the technical solution adopted is that the utility model provides a precision adjustment device for an aspheric mirror of a high-precision optical system, comprising: a fixed plate, an outer cylinder is provided on the fixed plate, the fixed plate and the axis of the outer cylinder are connected by a locking screw, four rotating adjustment screws are evenly distributed on the fixed plate along the circumference of the locking screw, a middle cylinder is placed in the outer cylinder, an inner cylinder is placed in the middle cylinder, four movable adjustment screws are evenly distributed on the outer wall of the middle cylinder, and a reflecting mirror is placed in the inner cylinder.

[0005] Preferably, a reflector pressure ring is installed on the reflector.

[0006] Preferably, an annular pressing plate is provided at one end of the outer cylinder away from the fixing plate, and the annular pressing plate is connected to the outer cylinder by fastening screws.

[0007] Preferably, the rotating adjusting screw passes through the fixing plate and contacts the outer wall of the outer cylinder, and the rotating adjusting screw is threadedly connected to the fixing plate.

[0008] Preferably, the movable adjusting screw passes through the middle cylinder and contacts the outer wall of the inner cylinder, and the movable adjusting screw is threadedly connected to the middle cylinder.

[0009] Preferably, four mounting holes are evenly distributed on the outer wall of the outer cylinder.

[0010] The technical solution of the present invention has the following advantages: through the nesting doll structure of the outer tube, the middle tube and the inner tube, in combination with four rotating adjustment screws and four movable adjustment screws, separate adjustment in five dimensions can be achieved, greatly shortening the debugging time and difficulty.

[0011] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0012] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 It is a structural diagram of the locking screw and the rotating adjustment screw in the utility model;

[0017] Figure 4 It is a cross-sectional view of the utility model;

[0018] Figure 5 It is a partial cross-sectional view of the utility model;

[0019] Among them, 1. Fixed plate; 2. Outer cylinder; 3. Locking screw; 4. Rotating adjustment screw; 5. Middle cylinder; 6. Inner cylinder; 7. Moving adjustment screw; 8. Reflector; 9. Reflector pressure ring; 10. Annular pressure plate; 11. Fastening screw; 12. Mounting hole. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when a component is referred to as being “fixed to” or “disposed on” another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being “connected to” another component, it can be directly or indirectly connected to the other component.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0024] The utility model provides a high-precision optical system aspheric mirror precision adjustment device, such as Figure 1-5 As shown, it comprises a fixed plate 1, on which an outer cylinder 2 is mounted. The fixed plate 1 and the outer cylinder 2 are connected at their axes by a locking screw 3. Four rotating adjustment screws 4 are evenly distributed on the fixed plate 1 along the circumference of the locking screw 3. A middle cylinder 5 is placed within the outer cylinder 2, which in turn is placed within the middle cylinder 5. Four movable adjustment screws 7 are evenly distributed on the outer wall of the middle cylinder 5. A reflector 8 is placed within the inner cylinder 6. The middle cylinder 5 and the inner cylinder 6 are tightly fitted in the axial direction, but have a gap in the radial direction to facilitate position adjustment.

[0025] The beneficial technical effects of the above technical solution are as follows: when it is necessary to adjust the position of the reflector 8, loosen the locking screw 3, loosen one rotating adjustment screw 4, and tighten the rotating adjustment screw 4 on the other side symmetrically, so that the reflector 8 can be rotated. When the four rotating adjustment screws 4 are tightened at the same time, the reflector can be moved axially; when it is necessary to adjust the reflector to move radially, unscrew one moving adjustment screw 7, and tighten the moving adjustment screw 7 on the other side symmetrically, so that the reflector can be moved radially.

[0026] In one embodiment, a reflector pressure ring 9 is installed on the reflector 8 for fixing the reflector. An annular pressure plate 10 is provided at the end of the outer cylinder 2 away from the fixed plate 1. The annular pressure plate 10 is connected to the outer cylinder 2 by a fastening screw 11 to facilitate the installation and disassembly of the reflector. The rotating adjustment screw 4 passes through the fixed plate 1 to contact the outer wall of the outer cylinder 2, and the rotating adjustment screw 4 is threadedly connected to the fixed plate 1. By rotating the adjustment screw 4, the angle of the reflector can be adjusted. The movable adjustment screw 7 passes through the middle cylinder 5 to contact the outer wall of the inner cylinder 6, and the movable adjustment screw 7 is threadedly connected to the middle cylinder 5. By rotating the movable adjustment screw 7, the radial position of the reflector can be adjusted. Four mounting holes 12 are evenly distributed on the outer wall of the outer cylinder 2, and the movable adjustment screw 7 can be installed through the mounting holes 12. Through the adjustment structure, two rotational degrees of freedom and three directional movement degrees of freedom can be adjusted separately, greatly shortening the debugging time and debugging difficulty.

[0027] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A precision adjustment device for an aspheric mirror in a high-precision optical system, characterized in that: include: A fixing plate (1) is provided on the fixing plate (1), an outer cylinder (2) is provided on the fixing plate (1), the fixing plate (1) and the outer cylinder (2) are connected at their axis by a locking screw (3), four rotating adjustment screws (4) are evenly distributed on the fixing plate (1) along the circumference of the locking screw (3), a middle cylinder (5) is placed in the outer cylinder (2), an inner cylinder (6) is placed in the middle cylinder (5), four movable adjustment screws (7) are evenly distributed on the outer wall of the middle cylinder (5), and a reflecting mirror (8) is placed in the inner cylinder (6).

2. The precision adjustment device for an aspheric mirror of a high-precision optical system according to claim 1, characterized in that: A reflector pressing ring (9) is installed on the reflector (8).

3. The precision adjustment device for an aspheric mirror in a high-precision optical system according to claim 1, characterized in that: An annular pressing plate (10) is provided at one end of the outer cylinder (2) away from the fixing plate (1), and the annular pressing plate (10) is connected to the outer cylinder (2) via a fastening screw (11).

4. The precision adjustment device for an aspheric mirror in a high-precision optical system according to claim 1, characterized in that: The rotating adjusting screw (4) passes through the fixing plate (1) and contacts the outer wall of the outer cylinder (2), and the rotating adjusting screw (4) is threadedly connected to the fixing plate (1).

5. The precision adjustment device for an aspheric mirror in a high-precision optical system according to claim 1, characterized in that: The movable adjusting screw (7) passes through the middle cylinder (5) and contacts the outer wall of the inner cylinder (6), and the movable adjusting screw (7) is threadedly connected to the middle cylinder (5).

6. The precision adjustment device for an aspheric mirror in a high-precision optical system according to claim 1, characterized in that: Four mounting holes (12) are evenly distributed on the outer wall of the outer cylinder (2).

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