CN-121978829-A - Light-splitting quick reflection mirror and assembly method thereof

Abstract

The invention relates to a beam-splitting quick-reflecting mirror and an assembling method thereof, belonging to the technical field of optics, wherein the beam-splitting quick-reflecting mirror comprises a mirror bracket component, a driving component, a flexible component and an optical mirror component, the mirror bracket component is used as a supporting main body, the driving component is arranged around the circumference of the optical mirror component, the output end of the driving component acts on the flexible component to provide driving force for driving the optical mirror component to deflect, the flexible component is connected with the optical mirror component and is used for generating elastic deformation under the driving of the driving component so as to drive the optical mirror component to deflect, and the optical mirror component is used for bearing an optical lens, and the mirror bracket component, the driving component and the flexible component are all arranged into a hollow structure for light beams to transmit through the optical lens.

Inventors

• Bao Anchao
• YUE XIAN
• XIANG ZHENJIAO
• LI GUOHUI
• ZHANG QIUSHI
• LIU XIAOMIN
• YOU JIANG
• DU YINGLEI

Assignees

• 中国工程物理研究院应用电子学研究所

Dates

Publication Date

20260505

Application Date

20260211

Claims (10)

1. 1. The beam-splitting quick-reflecting mirror is characterized by comprising a mirror bracket assembly, a driving assembly, a flexible assembly and an optical mirror assembly; The mirror holder subassembly is as supporting body, is used for carrying and connecting the drive assembly flexible subassembly reaches the optical mirror subassembly, drive assembly centers on the circumference of optical mirror subassembly is arranged, and its output acts on the flexible subassembly is in order to provide the drive the optical mirror subassembly deflects driving force, flexible subassembly with the optical mirror subassembly is connected, is used for producing elastic deformation under drive assembly's drive, and then drives the optical mirror subassembly deflects, the optical mirror subassembly is used for bearing the optical lens, the mirror holder subassembly the drive assembly reaches flexible subassembly all sets up to supply the light beam to transmit the hollow structure of optical lens.
2. 2. The light splitting quick reflection mirror according to claim 1, wherein the mirror frame assembly comprises a base and a pressing panel, the pressing panel is connected with the base through an adjustable pressing structure, and the flexible assembly is arranged between the base and the pressing panel; By adjusting the pressing structure, the pressing force of the base and the pressing panel on the flexible assembly is changed, and the pre-tightening state of the flexible assembly is adjusted.
3. 3. The beam-splitting quick-reflecting mirror according to claim 2, wherein the driving assembly comprises a driving base and a driving member, the driving base is connected with the base, and an output end of the driving member is connected with the flexible assembly for transmitting driving force to the flexible assembly.
4. 4. A dichroic mirror according to claim 3, wherein said base is provided with a mounting slot for receiving said driving member.
5. 5. A dichroic mirror according to claim 3, wherein the pressing panel and the driving base are respectively disposed on different sides of the base, and the end of the pressing structure abuts against the side of the driving base facing the base.
6. 6. The beam splitting quick reflection mirror according to claim 2, wherein the flexible assembly comprises a flexible rigid body and flexible pieces arranged on two opposite sides of the flexible rigid body, the flexible piece on one side is connected with the base, and the flexible piece on the other side is connected with the pressing panel; the output end of the driving component acts on the flexible rigid body to drive the flexible rigid body to move, and deflection of the optical lens component is realized through elastic deformation of the flexible piece.
7. 7. The beam-splitting quick reflection mirror according to claim 6, wherein the flexible rigid body is provided with a through hole for the pressing structure to penetrate.
8. 8. The beam splitting quick reflection mirror according to claim 1, wherein the optical mirror assembly comprises a holder and an optical lens, the optical lens is fixed in the holder through a pressing block and a cushion block, and the holder is detachably mounted on the flexible assembly.
9. 9. A method of assembling a beam splitting quick reflection mirror according to any one of claims 1 to 8, comprising the steps of: S100, installing and fixing the flexible component from one side of the frame component, installing the optical lens component with the optical lens from the other side of the frame component, and fixing the optical lens component on the flexible component; And S200, installing and fixing the driving assembly from the other side of the mirror frame assembly, and connecting the output end of the driving assembly with the flexible assembly.
10. 10. The method according to claim 9, further comprising applying a driving signal to the driving assembly to drive the flexible assembly to elastically deform, thereby deflecting the optical lens assembly to adjust the mounting posture of the optical lens after the step S200.

Description

Light-splitting quick reflection mirror and assembly method thereof Technical Field The invention belongs to the technical field of optics, and particularly relates to a beam splitting quick reflection mirror and an assembly method thereof. Background In the field of optical stabilization and pointing, a fast mirror is a key component, and its core function is to compensate for jitter in an optical path or to implement accurate pointing by rapidly adjusting the angle of the mirror. The conventional light stable fast reflecting mirror commonly adopts a central supporting driving structure. Specifically, it is typical to mount a drive plate fixedly on the back of the optical lens, the rear end of the drive plate being connected to a centrally located support post, and a drive mechanism (e.g., a piezo-ceramic actuator) being disposed around the support post. When the optical lens is in operation, the driving mechanism drives the optical lens and the driving plate at the back of the optical lens to jointly deflect by taking the central supporting column as a rotation center. However, the conventional center support structure has the inherent defects that 1, the application range and the performance are limited, 1, the function is single, the back surface of the optical lens is completely shielded by the driving plate and the center support structure, light cannot penetrate, the quick reflection mirror can only be used as a reflecting mirror, 2, the dynamic performance is limited, the first-order resonance frequency is low, and the structural rigidity is relatively low due to the fact that the center support column connection mode in the cantilever beam mode is adopted, so that the first-order resonance frequency of the whole lens assembly is difficult to further improve. The lower first-order resonant frequency can limit the control bandwidth and response speed of the fast-reflection mirror, and influence the stabilizing effect of the fast-reflection mirror in a scene requiring high dynamic performance and resisting high-frequency disturbance. Disclosure of Invention Aiming at various defects in the prior art, a beam-splitting quick-reflecting mirror and an assembly method thereof are provided so as to solve the defects in the aspects of functional integration level and dynamic performance in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: In a first aspect, the present invention provides a beam splitting quick reflection mirror, including a mirror frame assembly, a driving assembly, a flexible assembly, and an optical mirror assembly; The mirror holder subassembly is as supporting body, is used for carrying and connecting the drive assembly flexible subassembly reaches the optical mirror subassembly, drive assembly centers on the circumference of optical mirror subassembly is arranged, and its output acts on the flexible subassembly is in order to provide the drive the optical mirror subassembly deflects driving force, flexible subassembly with the optical mirror subassembly is connected, is used for producing elastic deformation under drive assembly's drive, and then drives the optical mirror subassembly deflects, the optical mirror subassembly is used for bearing the optical lens, the mirror holder subassembly the drive assembly reaches flexible subassembly all sets up to supply the light beam to transmit the hollow structure of optical lens. The technical scheme is that the spectacle frame assembly comprises a base and a pressing panel, wherein the pressing panel is connected with the base through an adjustable pressing structure, and the flexible assembly is arranged between the base and the pressing panel; By adjusting the pressing structure, the pressing force of the base and the pressing panel on the flexible assembly is changed, and the pre-tightening state of the flexible assembly is adjusted. The technical scheme is further characterized in that the driving assembly comprises a driving base and a driving piece, the driving base is connected with the base, and the output end of the driving piece is connected with the flexible assembly and used for transmitting driving force to the flexible assembly. The technical scheme is further that the base is provided with a mounting groove for accommodating the driving piece. The technical scheme is further characterized in that the pressing panel and the driving base are respectively arranged on different sides of the base, and the tail end of the pressing structure is abutted to the side face, facing the base, of the driving base. The technical scheme is that the flexible assembly comprises a flexible rigid body and flexible pieces arranged on two opposite sides of the flexible rigid body, wherein the flexible piece on one side of the flexible assembly is connected with the base, and the flexible piece on the other side of the flexible assembly is connected with the compression panel; the