Thermal optical path difference analysis of off-axis lens ray trace footprint at Cassegrain telescope correct lens assembly

Ming-Ying Hsu; Yu-Chuan Lin; Chia-Yen Chan; Wei-Cheng Lin; Shenq-Tsong Chan; Ting-Ming Huang

doi:10.1117/12.928833

11 October 2012 Thermal optical path difference analysis of off-axis lens ray trace foot-print at Cassegrain telescope correct lens assembly

Ming-Ying Hsu, Yu-Chuan Lin, Chia-Yen Chan, Wei-Cheng Lin, Shenq-Tsong Chan, Ting-Ming Huang

Author Affiliations +

Proceedings Volume 8486, Current Developments in Lens Design and Optical Engineering XIII; 848604 (2012) https://doi.org/10.1117/12.928833
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

The Cassegrain telescope system in this study, is discussion correct lens thermal OPD (Optical Path Difference) effect optical performance. The correct lens assembly are includes several components such as correct lens, lens mount, spacer, mount barrel and retainer. The heat transfer from surrounding to the correct lens barrel will causes optical system aberration. Meanwhile, the off-axis rays path of the OPD must consider lens incidence point and emergence point. The correct lens temperature distribution is calculate the lens barrel heat transfer analysis, the thermal distortion and stress are solve by FEM (Finite Element Method) software. The temperature calculation results can be weighting to each incidence ray path and calculate thermal OPD. The thermal OPD on Z-direction can be fitted by rigid body motion and Zernike polynomial. The fitting results can be used to evaluate the thermal effect on correct lens assembly in telescope system.

Citation Download Citation

Ming-Ying Hsu, Yu-Chuan Lin, Chia-Yen Chan, Wei-Cheng Lin, Shenq-Tsong Chan, and Ting-Ming Huang "Thermal optical path difference analysis of off-axis lens ray trace foot-print at Cassegrain telescope correct lens assembly", Proc. SPIE 8486, Current Developments in Lens Design and Optical Engineering XIII, 848604 (11 October 2012); https://doi.org/10.1117/12.928833

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