Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
권호 표지
DOI QR코드

DOI QR Code

Wide-angle optical design using high-resolution uncooled thermal detector

  • Received : 2017.10.11
  • Accepted : 2017.11.10
  • Published : 2017.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we propose efficient design and construction of an infrared wide angle optical system with low distortion utilizing a high resolution detector for automobile application. The operational convenience and the recognition ability have been improved significantly by applying the high resolution uncooled thermal detector with wide angle optical design. The active ahtermalization mechanism is implemented so that the adjustment of the optical component of the system is to be made automatically according to the temperature change by motorized control. The modulation transfer function (MTF) is about 50% at the Nyquist frequency close the diffraction limit. The distortion is less than 5% at the edge field. As a result, a high-resolution uncooled thermal optical system with wide field of view (FOV) is assembled, aligned and its performance is tested successfully.

Keywords

References

  1. Michael Vollmer, Klaus-Peter Mollmann, "Infrared Thermal Imaging Fundamentals, Research and Applications," HongReung Science Pub., P5-38, 2014
  2. Seok Min Hong, Hyun Sook Kim, "Advanced LWIR Thermal Imaging System with a Large Zoom Optics", Hankook Kwanghak Hoeji, Volume 16, P354-360, August 2005 https://doi.org/10.3807/KJOP.2005.16.4.354
  3. Robert E. Fischer, Biljana Tadic-Galeb, "OPTICAL SYSTEM DESIGN," McGraw-Hill, P129-178, 2008
  4. Chang-Min Ok, Sung-Chan Park, "Design and Analysis of a 10x Optical Zoom System for an LWIR Camera," Journal of the Optical Society of Korea, Vol. 18, P574-581, October 2014 https://doi.org/10.3807/JOSK.2014.18.5.574
  5. Chih-Wei Kuo, "Scene-based nonuniformity correction midwave infrared staring array triple field of view lens design," SPIE Optical Engineering, vol.51, P1003001-1-6, October 2012
  6. Robert E. Fischer, Biljana Tadic-Galeb, "OPTICAL SYSTEM DESIGN," McGraw-Hill, P179-198, 2008
  7. Li Ronggang, Zhang xingde, Liu lin, "Mid-wave Infrared Dual-field-of-view Lenses with High Ratio for Third Generation Thermal Imager", SPIE, Vol. 8197, 2011
  8. Seung Eun Oh, Sun Kyu Lee, Joong Kyu Choi, Kook Hyun Song, and Jong Sik Baek, "Design and Fabrication of Low Cost Infrared Optical System Using Precision Glass Molding Lens Made by Chalcogenide Glass," Korean Journal of Optics and Photonics, Volume 23, P154-158, August 2012 https://doi.org/10.3807/KJOP.2012.23.4.154
  9. J.M. Lloyd, "Thermal Imaging Systems," PLENUM( New York, United States of America), P257-267, 1982
  10. Seok-Hyeon Son, "The design methods of Infrared Camera with Continuous zoom," Journal of The Korea Society of Computer and Information, Vol. 21, P19-26, December 2016
  11. Chun-ho Song, "Applying tilt mechanism for high-resolution image acquisition," Journal of The Korea Society of Computer and Information, Vol. 19, P31-37, December 2014