Aspheric deformable mirror with high thermal disturbance resistance, and development method thereof

Abstract

The invention provides an aspheric deformable mirror with high thermal disturbance resistance, and a development method thereof. The invention aims to solve the problems that an aspheric deformable mirror in an existing adaptive telescope is complex in system, poor in reliability and thermal disturbance resistance and the like. The aspheric deformable mirror comprises a mirror surface (13), a drive (14), a base and heat sink (15) and a shell (16). The mirror surface, the drive, the base and heat sink and the shell are assembled into a whole and then connected with a supporting mechanism; the mirror surface adopts a thick mirror surface structure with an integral pole head; the drive adopts a stacked piezoelectric drive with an isolation increasing and heat conduction enhancing layer; the base and heat sink adopt a high-elasticity modulus material matched with the mirror surface and a lightweight structure form; and through an all-solid-state heat conduction channel formed by the mirrorsurface, the drive and the base and heat sink, heat absorbed by the mirror surface is guided into the rear portion of the deformable mirror and is processed. Finally, the aspheric deformable mirror which is more suitable for high-heat deposition application scenes such as solar high-resolution imaging and laser transmission is constructed.

Description

technical field [0001] The invention belongs to the technical field of self-adaptive optical wavefront correctors, in particular to an aspheric deformed reflector with high thermal disturbance resistance and a development method thereof. Background technique [0002] The deformable mirror is one of the core devices of the adaptive optics system. Its main function is to generate the surface shape required by the system in a controlled manner to compensate for the distorted wavefront and ensure the best optical performance of the system. Limited by the development method and technical level, traditional deformable mirrors are constructed based on flat mirrors, which require a complex matching optical system to maintain the optical conjugate relationship of the system ( figure 1 ). The matching optics system increases the complexity of the telescope's optical and mechanical structures, leading to an increase in system size and a decrease in light energy utilization, which limi...

AI Technical Summary

Problems solved by technology

[0004] However, the deformable mirror based on the voice coil motor driver has complex structure, high mass, low support stiffness, and poor reliability, and requires complex auxiliary devices to work together, resulting in high system construction costs

In addition, this type of deformable mirror is ultra-thin (1.2-2mm) and less connected to the reference panel, resulting in low heat capacity, poor thermal conductivity, and weak thermal disturbance resistance of the mirror, which cannot be used for high-resolution imaging of the sun, laser transmission, etc. Application scenarios with high heat deposition

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