Cart (Loading....) | Create Account
Close category search window
 

Thermal optical property analysis of three mirrors aberration optical system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Xue-feng Wu ; Coll. of Mech. & Power Eng., Henan Polytech. Univ., Jiaozuo, China ; Yu Fan

Module transform function (MTF) of three mirrors aberration (TMA) optical system would be changed when the structure deformation is occurred. The thermal optical property of frame is analyzed. Firstly, the finite element analysis (FEA) models of frame and three reflector mirrors are set up by FEM analysis software, and temperature distribution calculation is completed by FEM analysis software. It includes x axial, y axial and z axial temperature gradients. Secondly, the thermal elasticity deformations of reflector mirror surfaces made by frame deformation are computed in elastic force methods .The deformation of reflector mirror surfaces are expressed in Zernike polynomial. Finally, the results of reflector mirrors deformation influencing on optical system are computed by optical design software. The optical system image quality decided by surface deformation is analyzed. The results show that the x axial temperature gradient causes the MTF of optical system changed furthest, the y axial temperature gradient causes the minor MTF change, and the z axial temperature gradient caused the least change of MTF. Requirement of the x axial temperature difference is 4°, the y axial temperature difference is 6°, the z axial temperature difference is 6°. The simple thermal control is proposed. The research jobs could give some guidance and reference for the thermal design for TMA optical system.

Published in:

Image and Signal Processing (CISP), 2011 4th International Congress on  (Volume:5 )

Date of Conference:

15-17 Oct. 2011

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.