An adjustment device and optical system

Abstract

This invention provides an adjustment device and optical system, relating to the field of precision optical path adjustment technology. The adjustment device includes a fixed element, a swing element, a pitch element, and an adjustment mechanism. The swing element is rotatably connected to the fixed element via a first hinge, the axis of which is located at the midpoint between the fixed element and the swing element. The pitch element is rotatably connected to the swing element via a second hinge, the axis of which is located at the midpoint between the pitch element and the swing element. The axes of the first and second hinges are perpendicular. The adjustment mechanism drives the swing element to rotate relative to the fixed element and drives the pitch element to rotate relative to the swing element. This invention can separately achieve pitch and yaw adjustment of a lens, ensuring that adjustments in the two directions do not affect each other, improving adjustment efficiency, reducing adjustment difficulty, and meeting the needs of high-precision optical systems.

Description

Technical Field

[0001] This utility model relates to the field of precision optical path adjustment technology, and more specifically, to an adjustment device and an optical system. Background Technology

[0002] In optical systems, the adjustable frame is a key component that supports and adjusts optical elements (such as mirrors and lenses), and its performance directly affects the stability of the optical path and the adjustment accuracy. Traditional adjustable frames typically consist of a fixed plate and a movable plate, with their relative positions adjusted via a spring tensioning and ball-head set screw mechanism. A knurled wheel or electric actuator is designed at the rear of the set screw for manual or electric adjustment of the frame's angle and position.

[0003] However, traditional adjustment devices suffer from cross-coupling of X-axis and Y-axis rotation and displacement during adjustment. This means that adjusting pitch or yaw alone simultaneously introduces a change in beam direction and displacement along the other axis. This cross-coupling not only reduces adjustment efficiency but also increases the difficulty of adjustment, making it difficult to meet the precision requirements of high-precision optical systems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustment device and an optical system that can separately realize the pitch and yaw adjustment of a lens, so that the adjustment in the two directions does not affect each other, thereby improving adjustment efficiency, reducing adjustment difficulty, and meeting the needs of high-precision optical systems.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides an adjusting device, comprising:

[0007] Fixed components;

[0008] A swing element is rotatably connected to a fixed element via a first hinge, the axis of which is located at the middle of the fixed element and the swing element.

[0009] A pitch element is rotatably connected to the oscillating element via a second hinge, the axis of which is located at the middle of the pitch element and the oscillating element.

[0010] The axis of the first hinge is perpendicular to the axis of the second hinge;

[0011] An adjustment mechanism is provided, comprising a fixed block, a first adjustment component, and a second adjustment component. The fixed block is fixedly disposed at one end of the fixed element. The first adjustment component and the second adjustment component are disposed on the fixed block. The first adjustment component extends between the fixed element and the swing element and drives the swing element to rotate relative to the fixed element. The second adjustment component extends between the pitch element and the swing element and drives the pitch element to rotate relative to the swing element.

[0012] In an optional embodiment, the first adjusting assembly includes a first adjusting rod, a first guide member, and a second guide member. The first adjusting rod is connected to the fixed block via a first adjusting bolt. The first adjusting bolt rotates to move the first adjusting rod along its axis. The first guide member and the second guide member are disposed between the fixed element and the swing element. The first guide member is fixedly disposed on the fixed element, and the second guide member is fixedly disposed on the swing element. The end of the first adjusting rod away from the fixed block slides with the first guide member and the second guide member. An included angle is provided between the first guide member and the second guide member so that when the first adjusting rod moves along its axis, it drives the swing element to rotate relative to the fixed element.

[0013] The second adjustment assembly includes a second adjustment rod, a third guide member, and a fourth guide member. The second adjustment rod is connected to the fixed block via a second adjustment bolt. Rotating the second adjustment bolt causes the second adjustment rod to move along its axis. The third and fourth guide members are disposed between the pitch element and the oscillation element. The third guide member is fixedly disposed on the pitch element, and the fourth guide member is fixedly disposed on the oscillation element. The end of the second adjustment rod away from the fixed block is slidably engaged with the third and fourth guide members. An included angle is provided between the third and fourth guide members so that when the second adjustment rod moves along its axis, it drives the pitch element to rotate relative to the oscillation element.

[0014] In an optional embodiment, a first driving head is provided at the end of the first adjusting rod away from the fixed block, and the first driving head cooperates with the first guide and the second guide. A second driving head is provided at the end of the second adjusting rod away from the fixed block, and the second driving head cooperates with the third guide and the fourth guide.

[0015] In an optional embodiment, the first guide member includes a first guide rod, which is fixed to the fixing element along the axial direction of the first adjusting rod. The second guide member includes two parallel second guide rods, the axes of which are set at an angle to the axis of the first adjusting rod. One end of the first drive head cooperates with the first guide rod, and the other end is clamped between the second guide rods.

[0016] The fourth guide member includes a fourth guide rod, which is fixed to the fixing element along the axial direction of the second adjusting rod. The third guide member includes two parallel third guide rods, the axis of which is set at an angle to the axis of the second adjusting rod. One end of the second drive head cooperates with the fourth guide rod, and the other end is clamped between the third guide rods.

[0017] In an optional embodiment, the axis of the first adjusting rod is parallel to the axis of the first hinge, the axis of the second adjusting rod is perpendicular to the axis of the second hinge, and the length of the first adjusting rod is greater than the length of the second adjusting rod, such that the end of the first adjusting rod is located at the midpoint of the fixed element and the swing element along the axial direction of the first hinge, and the end of the second adjusting rod is located at the midpoint of the pitch element and the swing element along the axial direction of the second hinge.

[0018] In an optional embodiment, the first adjusting bolt is threadedly connected to the fixing block, one end of the first adjusting bolt is provided with a first cavity, and one end of the first adjusting rod engages with the first cavity; the second adjusting bolt is threadedly connected to the fixing block, one end of the second adjusting bolt is provided with a second cavity, and one end of the second adjusting rod engages with the second cavity.

[0019] In an optional embodiment, the end of the first adjusting rod extending into the first cavity is semi-helical, and the end of the second adjusting rod extending into the second cavity is semi-helical, so that the first adjusting rod can rotate relative to the first adjusting bolt, and the second adjusting rod can rotate relative to the second adjusting bolt.

[0020] In an optional embodiment, the fixing element, the swing element, and the pitch element are all provided with lens mounting holes, which are used to mount lenses, and the centers of the lens mounting holes are located on the same straight line.

[0021] In an optional embodiment, the adjustment device further includes a first elastic element and a second elastic element, the first elastic element being used to prevent the oscillating element from rotating relative to the fixed element, and the second elastic element being used to prevent the pitching element from rotating relative to the oscillating element.

[0022] Secondly, the present invention provides an optical system including an adjustment device as described in any of the foregoing embodiments.

[0023] The beneficial effects of the adjustment device and optical system provided in this embodiment of the present invention include:

[0024] The adjustment device of this utility model includes a fixed element, a swing element, a pitch element, and an adjustment mechanism. The swing element is rotatably connected to the fixed element via a first hinge, the axis of which is located at the midpoint between the fixed element and the swing element. The pitch element is rotatably connected to the swing element via a second hinge, the axis of which is located at the midpoint between the pitch element and the swing element. The axes of the first and second hinges are perpendicular. The adjustment mechanism includes a fixed block, a first adjustment assembly, and a second adjustment assembly. The fixed block is fixedly disposed at one end of the fixed element. The first and second adjustment assemblies are disposed on the fixed block. The first adjustment assembly extends between the fixed element and the swing element and drives the swing element to rotate relative to the fixed element. The second adjustment assembly extends between the pitch element and the swing element and drives the pitch element to rotate relative to the swing element. The adjustment device of this invention places the axis of the first hinge at the midpoint between the fixed element and the oscillating element, and the axis of the second hinge at the midpoint between the pitch element and the oscillating element. This allows the oscillating element and the pitch element to rotate around their respective midpoints, ensuring that the center positions of the oscillating element and the pitch element do not shift. Therefore, neither yaw adjustment nor pitch angle adjustment affects the position of the mounting center point. This invention can achieve separate pitch and yaw adjustments of the lens, ensuring that adjustments in the two directions do not affect each other, improving adjustment efficiency, reducing adjustment difficulty, and meeting the needs of high-precision optical systems. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the adjustment device provided in this embodiment from a first-view perspective;

[0027] Figure 2 This is a schematic diagram of the adjustment device provided in this embodiment from a second perspective;

[0028] Figure 3 This is a cross-sectional view of the adjustment device provided in this embodiment.

[0029] Icons: 100-Adjustment device; 10-Fixing element; 11-First hinge; 12-Lens mounting hole; 20-Oscillating element; 21-Second hinge; 30-Pitch element; 40-Adjustment mechanism; 41-Fixing block; 42-First adjustment assembly; 421-First adjustment rod; 422-First adjustment bolt; 4221-First cavity; 423-First drive head; 424-First guide rod; 425-Second guide rod; 43-Second adjustment assembly; 431-Second adjustment rod; 432-Second adjustment bolt; 433-Second drive head; 434-Third guide rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0035] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0036] First Embodiment

[0037] Please refer to Figures 1-3 The adjustment device 100 provided by this utility model is applied to an optical system for mounting lenses and adjusting the deflection and pitch angles of the lenses.

[0038] The adjustment device 100 includes a fixed element 10, a swing element 20, a pitch element 30, and an adjustment mechanism 40. The swing element 20 is rotatably connected to the fixed element 10 via a first hinge 11, the axis of which is located at the midpoint between the fixed element 10 and the swing element 20. The pitch element 30 is rotatably connected to the swing element 20 via a second hinge 21, the axis of which is located at the midpoint between the pitch element 30 and the swing element 20. The axis of the first hinge 11 is perpendicular to the axis of the second hinge 21. The adjustment mechanism 40 includes a fixed block 41, a first adjustment assembly 42, and a second adjustment assembly 43. The fixed block 41 is fixedly disposed at one end of the fixed element 10. The first adjustment assembly 42 and the second adjustment assembly 43 are disposed on the fixed block 41. The first adjustment assembly 42 extends between the fixed element 10 and the swing element 20 and drives the swing element 20 to rotate relative to the fixed element 10. The second adjustment assembly 43 extends between the pitch element 30 and the swing element 20 and drives the pitch element 30 to rotate relative to the swing element 20.

[0039] It is understood that the adjustment device 100 of this embodiment sets the axis of the first hinge 11 at the middle of the fixed element 10 and the swing element 20, and sets the axis of the second hinge 21 at the middle of the pitch element 30 and the swing element 20, so that the swing element 20 and the pitch element 30 rotate around their respective middle positions, ensuring that the center positions of the swing element 20 and the pitch element 30 do not shift, and neither the deflection adjustment nor the pitch angle adjustment affects the position of the installation center point. Specifically, the axis of the first hinge 11 is set at the axis of symmetry between the fixed element 10 and the swing element 20, and the axis of the second hinge 21 is set at the axis of symmetry between the pitch element 30 and the swing element 20, so that when the pitch element 30 is adjusted and then the swing element 20 is adjusted, the pitch angle of the pitch element 30 remains unchanged, and only the swing angle of the pitch element 30 is adjusted, and the two directions of adjustment, namely the pitch angle and the swing angle, do not affect each other. It is understandable that the direction of adjustment of the swing angle refers to the direction of rotation about the axis of the first hinge 11, and the direction of adjustment of the pitch angle refers to the direction of rotation about the axis of the second hinge 21.

[0040] The fixed element 10, the oscillating element 20, and the pitch element 30 are all plate-like structures, each with a lens mounting hole 12 for mounting lenses. The centers of the three lens mounting holes 12 are located on the same straight line. It is understood that when the fixed element 10, the oscillating element 20, and the pitch element 30 are parallel, the axes of the three lens mounting holes 12 coincide. When the angles of the oscillating element 20 and the pitch element 30 relative to the fixed element 10 change, the axes of the three lens mounting holes 12 are no longer parallel, but the center points of the three lens mounting holes 12 remain on the same straight line. It is understood that when the angles of the pitch element 30 and the oscillating element 20 relative to the fixed element 10 change, the center points of the lenses mounted on them always remain on the same straight line. Adjusting the pitch angle of the lens does not change the oscillating angle of the lens; adjusting the oscillating angle of the lens does not change the pitch angle of the lens.

[0041] Specifically, the first adjusting assembly 42 includes a first adjusting rod 421, a first guide member, and a second guide member. The first adjusting rod 421 is connected to the fixed block 41 via a first adjusting bolt 422. The first adjusting bolt 422 rotates to move the first adjusting rod 421 along its axis. The first guide member and the second guide member are disposed between the fixed element 10 and the swing element 20. The first guide member is fixedly disposed on the fixed element 10, and the second guide member is fixedly disposed on the swing element 20. The end of the first adjusting rod 421 away from the fixed block 41 is slidably engaged with the first guide member and the second guide member. An included angle is provided between the first guide member and the second guide member so that when the first adjusting rod 421 moves along its axis, it drives the swing element 20 to rotate relative to the fixed element 10.

[0042] It is understandable that one end of the first adjusting rod 421 slides relative to the first guide and the second guide, thereby opening one end of the swing element 20 from the fixed element 10, and thus adjusting the rotation of the swing element 20 relative to the fixed element 10.

[0043] Similarly, the second adjustment assembly 43 includes a second adjustment rod 431, a third guide member, and a fourth guide member (not shown). The second adjustment rod 431 is connected to the fixed block 41 via a second adjustment bolt 432. The second adjustment bolt 432 rotates to move the second adjustment rod 431 along its axis. The third and fourth guide members are disposed between the pitch element 30 and the oscillation element 20. The third guide member is fixedly disposed on the pitch element 30, and the fourth guide member is fixedly disposed on the oscillation element 20. The end of the second adjustment rod 431 away from the fixed block 41 is slidably engaged with the third and fourth guide members. An included angle is provided between the third and fourth guide members so that when the first adjustment rod 421 moves along its axis, it drives the oscillation element 20 to rotate relative to the fixed element 10.

[0044] Understandably, one end of the second adjusting rod 431 slides relative to the third and fourth guide members, opening up the pitch element 30 and the oscillation element 20, thereby adjusting the rotation of the pitch element 30 relative to the oscillation element 20.

[0045] In this embodiment, by providing the first adjustment component 42, the pitch element 30 and the oscillation element 20 can be adjusted to rotate together relative to the fixed element 10 around the axis of the first hinge 11. By providing the second adjustment component 43, the pitch element 30 can be adjusted to rotate relative to the fixed element 10 around the axis of the second hinge 21.

[0046] Furthermore, a first driving head 423 is provided at the end of the first adjusting rod 421 away from the fixed block 41, and the first driving head 423 cooperates with the first guide member and the second guide member. A second driving head 433 is provided at the end of the second adjusting rod away from the fixed block 41, and the second driving head 433 cooperates with the third guide member and the fourth guide member. It can be understood that the first adjusting rod 421 is a thin round rod, and the first driving head 423 is a spherical head with a diameter larger than that of the first adjusting rod 421, which can prevent the first adjusting rod 421 from contacting the fixed element 10 and the swing element 20; the second adjusting rod 431 is a thin round rod, and the second driving head 433 is a spherical head with a diameter larger than that of the second adjusting rod 431, which can prevent the second adjusting rod 431 from contacting the pitch element 30 and the swing element 20.

[0047] Furthermore, the first guide member includes a first guide rod 424, which is fixed to the fixing element 10 along the axial direction of the first adjusting rod 421. The second guide member includes two parallel second guide rods 425, the axes of which are angled with the axis of the first adjusting rod 421. One end of the first drive head 423 engages with the first guide rod 424, and the other end is clamped between the second guide rods 425.

[0048] The fourth guide member includes a fourth guide rod, which is fixed to the fixing element 10 along the axial direction of the second adjusting rod 431. The third guide member includes two parallel third guide rods 434, the axes of which are angled with the axis of the second adjusting rod 431. One end of the second drive head 433 engages with the fourth guide rod, and the other end is clamped between the third guide rods 434.

[0049] It is understood that the first drive head 423 is clamped between the first guide rod 424 and the two second guide rods 425, and is held by the three rods. The first guide rod 424 and the second guide rods 425 restrict the spatial position of the first drive head 423 to prevent it from shifting. The second drive head 433 is clamped between the third guide rod 434 and the two fourth guide rods, and is held by the three rods. The third guide rod 434 and the fourth guide rods restrict the spatial position of the second drive head 433 to prevent it from shifting.

[0050] In this embodiment, the axis of the first adjusting rod 421 is parallel to the axis of the first hinge 11, and the axis of the second adjusting rod 431 is perpendicular to the axis of the second hinge 21. The length of the first adjusting rod 421 is greater than the length of the second adjusting rod 431, so that the end of the first adjusting rod 421 is located at the middle of the fixed element 10 and the swing element 20 along the axis of the first hinge 11, and the end of the second adjusting rod 431 is located at the middle of the pitch element 30 and the swing element 20 along the axis of the second hinge 21. It can be understood that in this embodiment, the first driving head 423 is located at the middle position of the fixed element 10 and the swing element 20 along the axis of the first hinge 11, and the second driving head 433 is located at the middle position of the pitch element 30 and the swing element 20 along the axis of the second hinge 21. This makes the force on the swing element 20 and the pitch element 30 more even.

[0051] Furthermore, the first adjusting bolt 422 is threadedly connected to the fixing block 41. One end of the first adjusting bolt 422 has a first cavity 4221, and one end of the first adjusting rod 421 engages with the first cavity 4221. The second adjusting bolt 432 is threadedly connected to the fixing block 41. One end of the second adjusting bolt 432 has a second cavity, and one end of the second adjusting rod 431 engages with the second cavity. It can be understood that rotating the first adjusting bolt 422 allows it to be screwed into or out of the fixing block 41, thereby causing the first adjusting rod 421 to move along its axis; rotating the second adjusting bolt 432 allows it to be screwed into or out of the fixing block 41, thereby causing the second adjusting rod 431 to move along its axis.

[0052] Specifically, the end of the first adjusting rod 421 that extends into the first cavity 4221 is semi-helical, and the end of the second adjusting rod 431 that extends into the second cavity is semi-helical, so that the first adjusting rod 421 can rotate relative to the first adjusting bolt 422, and the second adjusting rod 431 can rotate relative to the second adjusting bolt 432.

[0053] In this embodiment, the adjustment device 100 further includes a first elastic element and a second elastic element. The first elastic element is used to prevent the oscillating element 20 from rotating relative to the fixed element 10, and the second elastic element is used to prevent the pitch element 30 from rotating relative to the oscillating element 20. It can be understood that the movement of the first drive head 423 is used to drive the oscillating element 20 to rotate relative to the fixed element 10, and the first elastic element is used to prevent the movement of the first drive head 423; the movement of the second drive head 433 is used to drive the pitch element 30 to rotate relative to the oscillating element 20, and the second elastic element is used to prevent the movement of the second drive head 433.

[0054] In this embodiment, the first and second elastic elements can be configured as flexible hinges, respectively located at the first hinge 11 and the second hinge 21, respectively hindering the rotation of the swing element 20 relative to the fixed element 10 and hindering the rotation of the pitch element 30 relative to the swing element 20. In other embodiments, the first and second elastic elements can also be configured as springs, respectively located between the swing element 20 and the fixed element 10, and between the pitch element 30 and the swing element 20. This invention does not limit the specific types of the first and second elastic elements.

[0055] Second Embodiment

[0056] This invention also provides an optical system, which includes the adjustment device 100 of the first embodiment described above. Specifically, the optical system includes optical experimental equipment, photolithography equipment, semiconductor laser equipment, and other equipment equipped with optical lenses.

[0057] The beneficial effects of the adjustment device 100 and optical system provided in this embodiment of the present invention include:

[0058] The adjustment device 100 of this utility model includes a fixed element 10, a swing element 20, a pitch element 30, and an adjustment mechanism 40. The swing element 20 is rotatably connected to the fixed element 10 via a first hinge 11, the axis of which is located at the midpoint between the fixed element 10 and the swing element 20. The pitch element 30 is rotatably connected to the swing element 20 via a second hinge 21, the axis of which is located at the midpoint between the pitch element 30 and the swing element 20. The axis of the first hinge 11 is perpendicular to the axis of the second hinge 21. The adjustment mechanism 40 includes a fixed block 41, a first adjustment assembly 42, and a second adjustment assembly 43. The fixed block 41 is fixedly disposed at one end of the fixed element 10. The first adjustment assembly 42 and the second adjustment assembly 43 are disposed on the fixed block 41. The first adjustment assembly 42 extends between the fixed element 10 and the swing element 20 and drives the swing element 20 to rotate relative to the fixed element 10. The second adjustment component 43 extends between the pitch element 30 and the oscillation element 20 and drives the pitch element 30 to rotate relative to the oscillation element 20. The adjustment device 100 of this invention sets the axis of the first hinge 11 at the middle of the fixed element 10 and the oscillation element 20, and positions the axis of the second hinge 21 at the middle of the pitch element 30 and the oscillation element 20. This allows the oscillation element 20 and the pitch element 30 to rotate around their respective intermediate positions, ensuring that the center positions of the oscillation element 20 and the pitch element 30 do not shift. Neither yaw adjustment nor pitch angle adjustment affects the position of the mounting center point. This invention can separately achieve pitch and yaw adjustment of the lens, ensuring that adjustments in the two directions do not affect each other, improving adjustment efficiency, reducing adjustment difficulty, and meeting the needs of high-precision optical systems.

[0059] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An adjusting device, characterized in that include: Fixed components; A swing element is rotatably connected to a fixed element via a first hinge, the axis of which is located at the middle of the fixed element and the swing element. A pitch element is rotatably connected to the oscillating element via a second hinge, the axis of which is located at the middle of the pitch element and the oscillating element. The axis of the first hinge is perpendicular to the axis of the second hinge; An adjustment mechanism is provided, comprising a fixed block, a first adjustment component, and a second adjustment component. The fixed block is fixedly disposed at one end of the fixed element. The first adjustment component and the second adjustment component are disposed on the fixed block. The first adjustment component extends between the fixed element and the swing element and drives the swing element to rotate relative to the fixed element. The second adjustment component extends between the pitch element and the swing element and drives the pitch element to rotate relative to the swing element.

2. The adjustment device of claim 1, wherein The first adjustment assembly includes a first adjustment rod, a first guide member, and a second guide member. The first adjustment rod is connected to the fixed block via a first adjustment bolt. The first adjustment bolt rotates to move the first adjustment rod along its axis. The first guide member and the second guide member are disposed between the fixed element and the swing element. The first guide member is fixedly disposed on the fixed element, and the second guide member is fixedly disposed on the swing element. The end of the first adjustment rod away from the fixed block slides with the first guide member and the second guide member. An included angle is provided between the first guide member and the second guide member so that when the first adjustment rod moves along its axis, it drives the swing element to rotate relative to the fixed element. The second adjustment assembly includes a second adjustment rod, a third guide member, and a fourth guide member. The second adjustment rod is connected to the fixed block via a second adjustment bolt. Rotating the second adjustment bolt causes the second adjustment rod to move along its axis. The third and fourth guide members are disposed between the pitch element and the oscillation element. The third guide member is fixedly disposed on the pitch element, and the fourth guide member is fixedly disposed on the oscillation element. The end of the second adjustment rod away from the fixed block is slidably engaged with the third and fourth guide members. An included angle is provided between the third and fourth guide members so that when the second adjustment rod moves along its axis, it drives the pitch element to rotate relative to the oscillation element.

3. The adjustment device of claim 2, wherein, The first adjusting rod has a first driving head at one end away from the fixed block, and the first driving head cooperates with the first guide and the second guide. The second adjusting rod has a second driving head at one end away from the fixed block, and the second driving head cooperates with the third guide and the fourth guide.

4. The adjustment device of claim 3, wherein The first guide member includes a first guide rod, which is fixed to the fixing element along the axial direction of the first adjusting rod. The second guide member includes two parallel second guide rods, the axes of which are set at an angle to the axis of the first adjusting rod. One end of the first drive head cooperates with the first guide rod, and the other end is clamped between the second guide rods. The fourth guide member includes a fourth guide rod, which is fixed to the fixing element along the axial direction of the second adjusting rod. The third guide member includes two parallel third guide rods, the axis of which is set at an angle to the axis of the second adjusting rod. One end of the second drive head cooperates with the fourth guide rod, and the other end is clamped between the third guide rods.

5. The adjustment device of claim 2, wherein The axis of the first adjusting rod is parallel to the axis of the first hinge, and the axis of the second adjusting rod is perpendicular to the axis of the second hinge. The length of the first adjusting rod is greater than the length of the second adjusting rod, so that the end of the first adjusting rod is located at the middle of the fixed element and the swing element along the axis of the first hinge, and the end of the second adjusting rod is located at the middle of the pitch element and the swing element along the axis of the second hinge.

6. The adjustment device of claim 2, wherein The first adjusting bolt is threadedly connected to the fixing block, and one end of the first adjusting bolt is provided with a first cavity, and one end of the first adjusting rod is engaged with the first cavity; the second adjusting bolt is threadedly connected to the fixing block, and one end of the second adjusting bolt is provided with a second cavity, and one end of the second adjusting rod is engaged with the second cavity.

7. The adjustment device of claim 6, wherein The first adjusting rod has a semi-helical end that extends into the first cavity, and the second adjusting rod has a semi-helical end that extends into the second cavity, so that the first adjusting rod can rotate relative to the first adjusting bolt, and the second adjusting rod can rotate relative to the second adjusting bolt.

8. The adjustment device of claim 1, wherein, The fixed element, the swing element, and the pitch element are all provided with lens mounting holes, which are used to mount lenses, and the centers of the lens mounting holes are located on the same straight line.

9. The adjusting device according to claim 1, characterized in that, The adjustment device further includes a first elastic element and a second elastic element, wherein the first elastic element is used to prevent the oscillating element from rotating relative to the fixed element, and the second elastic element is used to prevent the pitching element from rotating relative to the oscillating element.

10. An optical system, characterized in that, Includes the adjusting device as described in any one of claims 1-9.

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