Design and analysis of 1-m beryllium space telescope

Ying W. Hsu; Roger A. Johnston

doi:10.1117/12.218672

6 September 1995 Design and analysis of 1-m beryllium space telescope

Ying W. Hsu, Roger A. Johnston

Proceedings Volume 2542, Optomechanical and Precision Instrument Design; (1995) https://doi.org/10.1117/12.218672
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We describe the design and analysis of a prototype Beryllium telescope with a near one meter aperture for space laser altimeter application. The design target for this telescope is 25 kG mass, 100 micro-radian boresight, and 100 micro-radian blur spot. We first conduct a parametric study to optimize the design of the primary mirror. Our study shows that the degree of lightweighting is limited by the quilting parameter which is fixed by optical fabrication standards. We further discuss the options for the metering structure design, and the rationale for our selection. A number of analysis were conducted to validate the final design. To assess the optical performance, we model the telescope using an in-house program, SPOT, which enables individual allocation of various 'real-life' optical aberrations. The result of our modeling indicates an expected spot size of 53 micro-radians. We model the primary mirror and the telescope using finite element technique; our analysis indicates that the telescope has adequate margins to survive the launch environment and meet boresight requirements during operations. Lastly, we discuss some of the lessons learned through our experience, and suggest some possible future design approaches.

Citation Download Citation

Ying W. Hsu and Roger A. Johnston "Design and analysis of 1-m beryllium space telescope", Proc. SPIE 2542, Optomechanical and Precision Instrument Design, (6 September 1995); https://doi.org/10.1117/12.218672

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