Novel fast reflecting mirror device
The new fast mirror device supported by magnetic field force solves the problem of limited beam scanning or direction in the prior art, realizes large-scale and high-precision frictionless beam movement, and improves the range of motion and dynamic characteristics.
Patent Information
- Application Number
- CN202510667450.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2025-07-22
AI Technical Summary
The existing fast mirror devices are limited by the properties and service life of flexible shaft materials during large-scale and high-precision beam scanning or orientation, making it difficult to achieve efficient motion under frictionless conditions.
The magnetic field force is used to realize the non-contact support between the mirror support and the fast mirror support. Through the principle of repulsion between the same poles and attracting between the different poles, multiple magnetic field generation devices are used to connect the mirror support and the fast mirror support to achieve rapid scanning or orientation of the light beam.
It realizes high-precision and rapid scanning or orientation of the beam in a large range, reduces friction, and improves the range of motion and dynamic characteristics.
Smart Images
Figure CN120353002A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to rapid beam scanning or orientation in the optical path of devices such as optoelectronic precision tracking, laser processing, laser welding, and optical communication. The problem to be solved is to achieve high-precision and rapid beam scanning or orientation under large-range and frictionless conditions. Specifically, it is a novel fast steering mirror device designed to achieve large-range, high-precision and rapid beam scanning or orientation. Background Art
[0002] To achieve large-range, high-precision and rapid beam scanning or orientation in the optical path, fast steering mirror devices are often used in the optical paths of devices such as optoelectronic precision tracking, laser processing, laser welding, and optical communication. Currently, the main method of fast steering mirror devices is to rapidly drive the reflecting mirror through a motor and a flexible shaft to control the pointing of the optical path. Due to limitations such as the material properties and service life of the flexible shaft, the motion range, dynamic characteristics, etc. of the fast steering mirror are restricted. However, with the continuous expansion of application fields and the improvement of technical requirements, it is often required that the fast steering mirror has a large motion range, good dynamic characteristics, small friction or even no friction. Therefore, designing a fast steering mirror device that meets the development needs of new technologies is of great significance for practical applications. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to achieve high-precision and rapid beam scanning or orientation under large-range and frictionless conditions.
[0004] The technical solution adopted by the present invention to solve its technical problem is: a novel fast steering mirror device, characterized in that it includes a mirror support, a fast steering mirror support, magnetic field generating device 1, magnetic field generating device 2, magnetic field generating device 3, magnetic field generating device 4, a reflecting mirror, a motor, and a sensor; in the working state, the reflecting mirror, magnetic field generating device 1, and magnetic field generating device 3 are fixedly connected to the mirror support; magnetic field generating device 2 and magnetic field generating device 4 are fixedly connected to the fast steering mirror support; the moving part and the fixed part of the motor are respectively connected to the mirror support and the fast steering mirror support; the sensor is used to detect the tilt angle, tilt angular velocity, or tilt angular acceleration of the reflecting mirror in real time; under the action of the motor and magnetic field generating device 1, magnetic field generating device 2, magnetic field generating device 3, and magnetic field generating device 4, the mirror support rotates relative to the fast steering mirror support.
[0005] The support connection between the mirror support and the fast steering mirror support is realized by using the principle of like poles repelling and opposite poles attracting in a magnetic field; The opposite-facing magnetic poles of magnetic field generating device 1 and magnetic field generating device 2 are the same, and the opposite-facing magnetic poles of magnetic field generating device 3 and magnetic field generating device 4 are the same; Magnetic field generating device 1, magnetic field generating device 2, magnetic field generating device 3, and magnetic field generating device 4 can be permanent magnets or electromagnets; The magnetic field generating device 1 and the magnetic field generating device 3 can be independent of each other or integrated as a whole, and the field generating device 2 and the magnetic field generating device 4 can be independent of each other or integrated as a whole; The number, shape, etc. of the magnetic field generating devices can be increased, decreased, or changed according to actual needs; The relative movement between the mirror support and the fast steering mirror support can be driven by one or more motors. Description of the Drawings
[0006] Figure 1 It is a schematic structural diagram of a new type of fast steering mirror device; In the figure, 1 is the mirror support, 2 is the fast steering mirror support, 3 is the magnetic field generating device 1, 4 is the magnetic field generating device 2, 5 is the magnetic field generating device 3, 6 is the magnetic field generating device 4, 7 is the mirror, 8 is the motor, and 9 is the sensor.
Claims
1. A novel fast-steering mirror device, characterized in that: It includes a mirror support (1), a fast steering mirror support (2), a magnetic field generating device 1 (3), a magnetic field generating device 2 (4), a magnetic field generating device 3 (5), a magnetic field generating device 4 (6), a mirror (7), a motor (8), and a sensor (9); in the working state, the mirror (7), the magnetic field generating device 1 (3), and the magnetic field generating device 3 (5) are fixedly connected to the mirror support (1); the magnetic field generating device 2 (4) and the magnetic field generating device 4 (6) are fixedly connected to the fast steering mirror support (2); the moving part and the fixed part of the motor are respectively connected to the mirror support (1) and the fast steering mirror support (2); the sensor (9) is used to detect the tilt angle, tilt angular velocity, or tilt angular acceleration of the mirror (7) in real time; under the action of the motor (8) and the magnetic field generating devices 1 (3), 2 (4), 3 (5), and 4 (6), the mirror support (1) rotates relative to the fast steering mirror support (2).
2. The novel fast-steering mirror device according to claim 1, characterized in that: The support connection between the mirror support (1) and the fast steering mirror support (2) is realized by using the principle that like poles of a magnetic field repel each other and opposite poles attract each other.
3. A novel fast-steering mirror device according to claim 1, characterized in that: The opposite-facing magnetic poles of the magnetic field generating device 1 (3) and the magnetic field generating device 2 (4) are the same, and the opposite-facing magnetic poles of the magnetic field generating device 3 (5) and the magnetic field generating device 4 (6) are the same.
4. A novel fast-steering mirror device according to claim 1, characterized in that: The magnetic field generating devices 1 (3), 2 (4), 3 (5), and 4 (6) can be permanent magnets or electromagnets.
5. A novel fast-steering mirror device according to claim 1, wherein: The magnetic field generating device 1 (3) and the magnetic field generating device 3 (5) can be independent of each other or integrated, and the magnetic field generating device 2 (4) and the magnetic field generating device 4 (6) can be independent of each other or integrated.
6. A novel fast-steering mirror device according to claim 1, characterized in that: The number, shape, etc. of the magnetic field generating devices can be increased, decreased, or changed according to actual needs.
7. A novel fast-steering mirror device according to claim 1, characterized in that: The relative movement between the mirror support (1) and the fast steering mirror support (2) can be driven by one or more motors (8).