A novel adhesive bonding process in reflecting mirror

Xuemin Zhang; Shiqi Wang; Jiawen Cai; Guang Jin

doi:10.1117/12.2666818

4 April 2023 A novel adhesive bonding process in reflecting mirror

Xuemin Zhang, Shiqi Wang, Jiawen Cai, Guang Jin

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126177A (2023) https://doi.org/10.1117/12.2666818
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

The way the reflecting mirror is attached to the support structure can remarkably impact its surface shape accuracy. In order to improve the surface accuracy of the mirror, it is necessary to design a suitable adhesive bonding process. We finally designed an adhesive bonding process with uniform large gap gluing solution along the outer ring of the mandrel. By theoretically treating the cured adhesive as a linear elastic material, the thermal stress on the reflector under this scheme was analyzed, and the specific adhesive area was calculated. The surface shape accuracy of the reflector is analyzed by using the finite element analysis method. The analysis results obtained that the surface shape accuracy of the main reflector under the coupling effect of gravity load and temperature load satisfies RMS ≤ λ/50(λ=632.8nm). Also we tested the surface shape accuracy of the reflecting mirror, an interference self-accurate detection optical path is constructed and we got the surface shape accuracy which is 0.025λ, which verifies the feasibility of the new bonding process.

Citation Download Citation

Xuemin Zhang, Shiqi Wang, Jiawen Cai, and Guang Jin "A novel adhesive bonding process in reflecting mirror", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126177A (4 April 2023); https://doi.org/10.1117/12.2666818

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