AN ATHERMALIZATION LENS BARREL STRUCTURE FOR IR OPTICAL SYSTEM

A. Ho-Soon Yang, B. Hagyong Kihm, C. Il Kweon Moon, D. Gil-Jae Jung, E. Se-Chol Choi, F. Kyung- Joo Lee, G. Hong-Yeon Hwang, H. Sug-Whan Kim, I. Yun-Woo Lee

Abstract:

We have developed an athermalization barrel containing 4 IR lenses. It consists of two materials with different coefficients of thermal expansion (Invar and aluminum). A finite element analysis and the experiment data showed that this new athermalization barrel has a defocus error sensitivity of 8.1 nm/°C, which satisfies our requirement for high resolution camera.
Keywords:

IR, athermalization, barrel, Invar
Download:

IMEKO-WC-2012-TC15-O1.pdf
DOI:

_unreg_wc-2012.TC15-O1

Event details:

IMEKO TC:
Event name:

XX IMEKO World Congress
Title:

Metrology for Green Growth
Place:

Busan, REPUBLIC of KOREA
Time:

09 September 2012 - 12 September 2012