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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 17, Iss. 2 — Apr. 1, 2013
  • pp: 142–147

A Design of Mid-wave Infrared Integral Catadioptric Optical System with Wide FOV

Lin Yao Yu, Hong Guang Jia, Qun Wei, Hu Hai Jiang, Tian Yi Zhang, and Chao Wang  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 17, Issue 2, pp. 142-147 (2013)


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Abstract

In order to deduce the difficulty of fixing the Ritchey-Chretien (R-C) dual reflective optical system and enhance the stability of the secondary mirror, a compact integral structure is presented here composed of two transmitting and two reflective aspheric surfaces. The four surfaces were manufactured from a single germanium lens and integrated together. The two reflective surfaces formed by coating the inner reflecting films were assembled in one lens. It makes the installation of the two mirrors easier and the structure of the secondary mirror more stable. A design of mid-wave infrared (MWIR) compact imaging system is presented with a spectral range chosen as 3.7-4.8 μm. The effective focal length is f=90 mm. The field of view (FOV) for the lens is 4.88°. It has good imaging capability with Modulation Transfer Function (MTF) of all field of view more than 0.55 close to the diffraction limitation. Outdoor experiments were carried out and it is shown that the integral catadioptric optical system performs well on imaging.

© 2013 Optical Society of Korea

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(080.4035) Geometric optics : Mirror system design

History
Original Manuscript: January 22, 2013
Revised Manuscript: March 11, 2013
Manuscript Accepted: March 21, 2013
Published: April 25, 2013

Citation
Lin Yao Yu, Hong Guang Jia, Qun Wei, Hu Hai Jiang, Tian Yi Zhang, and Chao Wang, "A Design of Mid-wave Infrared Integral Catadioptric Optical System with Wide FOV," J. Opt. Soc. Korea 17, 142-147 (2013)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-17-2-142


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