Opto-mechanical design of optical window for aero-optics effect simulation instruments

Guo-ming Wang; Dengfeng Dong; Weihu Zhou; Xing Ming; Yan Zhang

doi:10.1117/12.2246736

19 October 2016 Opto-mechanical design of optical window for aero-optics effect simulation instruments

Guo-ming Wang, Dengfeng Dong, Weihu Zhou, Xing Ming, Yan Zhang

Proceedings Volume 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation; 1015419 (2016) https://doi.org/10.1117/12.2246736
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

A complete theory is established for opto-mechanical systems design of the window in this paper, which can make the design more rigorous .There are three steps about the design. First, the universal model of aerodynamic environment is established based on the theory of Computational Fluid Dynamics, and the pneumatic pressure distribution and temperature data of optical window surface is obtained when aircraft flies in 5-30km altitude, 0.5-3Ma speed and 0-30°angle of attack. The temperature and pressure distribution values for the maximum constraint is selected as the initial value of external conditions on the optical window surface. Then, the optical window and mechanical structure are designed, which is also divided into two parts: First, mechanical structure which meet requirements of the security and tightness is designed. Finally, rigorous analysis and evaluation are given about the structure of optics and mechanics we have designed. There are two parts to be analyzed. First, the Fluid-Solid-Heat Coupled Model is given based on finite element analysis. And the deformation of the glass and structure can be obtained by the model, which can assess the feasibility of the designed optical windows and ancillary structure; Second, the new optical surface is fitted by Zernike polynomials according to the deformation of the surface of the optical window, which can evaluate imaging quality impact of spectral camera by the deformation of window.

Citation Download Citation

Guo-ming Wang, Dengfeng Dong, Weihu Zhou, Xing Ming, and Yan Zhang "Opto-mechanical design of optical window for aero-optics effect simulation instruments", Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 1015419 (19 October 2016); https://doi.org/10.1117/12.2246736

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KEYWORDS

Structural design

Device simulation

Finite element methods

Optical instrument design

Optical simulations

Optomechanical design

Wavefront aberrations

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