AN ATHERMALIZATION LENS BARREL STRUCTURE FOR IR OPTICAL SYSTEM |
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| 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:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012