Theoretical analysis of optical systems subjected to mechanical stress: an application to ISO star sensor design

S. Pieri

doi:10.1117/12.142855

15 April 1993 Theoretical analysis of optical systems subjected to mechanical stress: an application to ISO star sensor design

S. Pieri

Author Affiliations +

Proceedings Volume 1780, Lens and Optical Systems Design; 17801M (1993) https://doi.org/10.1117/12.142855
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

This work concerns the analysis of errors induced on optical systems by mechanical stresses. These errors are a consequence of deformations induced by mounts, spacers, and similar things in contact with the optical surfaces. This analysis is essential to drive the mechanical design of very accurate optomechanical systems. The authors developed a method based on a finite elements modelling of the optical system and on interferometric measurement of the real surfaces deformation. The mechanical behavior of optomechanical items is evaluated by means of a structural analysis software package (ANSYS). The deformed finite elements model is transformed in a surface representation suitable for optical ray tracing, by means of a Zernike polynomial fitting. The mechanical stresses of real optical elements are measured by an interferometer and the surfaces are represented fitting the reflected or transmitted wavefront with the same method. The complete optical system under stress condition is then analyzed using an optical design program provided by a specialized ray tracing routine, supporting a Zernike polynomial representation of the optical surfaces. An application of this method was done on the optomechanical design of I..O. Star Sensor developed within an ESA program.

Citation Download Citation

S. Pieri "Theoretical analysis of optical systems subjected to mechanical stress: an application to ISO star sensor design", Proc. SPIE 1780, Lens and Optical Systems Design, 17801M (15 April 1993); https://doi.org/10.1117/12.142855

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mirrors

Optical design

Wavefronts

Ray tracing

Structural analysis

Objectives

Optical components

Show All Keywords

Keywords/Phrases

Search In:

Publication Years