Flexible aluminum reflector

Abstract

The invention relates to a flexible aluminum reflector. The flexible aluminum reflector comprises a mirror body, a connecting piece and a flexible supporting piece, wherein the flexible supporting piece comprises a low-rigidity triangular plate and a biaxial flexible hinge arranged on the triangular plate, the biaxial flexible hinge can deflect in two directions perpendicular to the axis of the mirror body, and the triangular plate and the connecting piece can generate displacement and deflection along the axis of the mirror body. The flexible aluminum reflector is high in lightweight degree;by the adoption of integrated design, the reflector can be directly connected with a reflector backboard, a flexible transition piece is omitted, the installing and debugging process is simplified, and the instability of connection between all pieces is lowered; and the processing cycle can be shortened, and cost can be lowered.

Description

technical field [0001] The invention relates to the field of optical remote sensing, in particular to an aerial optical lens. Background technique [0002] For space-based, space-based, ship-based and ground-based optoelectronic systems, whether it is an imaging or energy system, the requirements for the stability and optical performance of the reflector are very high. However, the existing aluminum mirror parts have poor mirror support rigidity and stability, the overall thickness of the mirror body is relatively large, and the degree of light weight is not high. The back radial cross holes and axial blind holes are mainly used, which not only complicates the processing technology , and produce a large residual stress, resulting in deformation of the mirror. [0003] The thickness of the mirror body needs to be greatly increased in the processing of light-weight holes on the back of the traditional classic aluminum mirror. Because the elastic modulus of aluminum is low, it...

AI Technical Summary

Problems solved by technology

However, the existing aluminum mirror parts have poor mirror support rigidity and stability, the overall thickness of the mirror body is relatively large, and the degree of light weight is not high. The back radial cross holes and axial blind holes are mainly used, which not only complicates the processing technology , and produces a large residual stress, resulting in deformation of the mirror surface

[0003] The light-weight hole processing on the back of the traditional classic aluminum mirror needs to greatly increase the thickness of the mirror body. Because the elastic modulus of aluminum is low, it cannot be used for ultra-light processing, so the gravity is relatively large

And the most important thing is that it is difficult to achieve the ideal surface roughness by drilling on the back, and its processing residual stress affects the surface shape accuracy, thereby reducing the optical performance of the system

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