Lightweight mirror design method using topology optimization

Kang-Soo Park; Jun Ho Lee; Sung-Kie Youn

doi:10.1117/1.1901685

1 May 2005 Lightweight mirror design method using topology optimization

Kang-Soo Park, Jun Ho Lee, Sung-Kie Youn

Author Affiliations +

Optical Engineering, Vol. 44, Issue 5, 053002 (May 2005). https://doi.org/10.1117/1.1901685

Abstract

Lightweight mirrors experience optical image degradation due to mechanical loadings such as self-weight, polishing pressure, and vibration. Optical surface deformation of a lightweight primary mirror is an important factor that affects optical performance. We use topology optimization to design a lightweight primary mirror under self-weight and polishing pressure. For the optimization, we used a 3-D model of the mirror and based our calculations on the rms surface error of the mirror as an objective function constrained by the maximum weight of the mirror. In the first example of topology optimization, we consider the mirror's self-weight loading. In the second example, we include the polishing pressure. We present the results of the optimized design topology for the mirror with various mass constraints. To examine the optimal design results, we manufacture a prototype of the mirror.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Kang-Soo Park, Jun Ho Lee, and Sung-Kie Youn "Lightweight mirror design method using topology optimization," Optical Engineering 44(5), 053002 (1 May 2005). https://doi.org/10.1117/1.1901685

Published: 1 May 2005

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available