Compact MWIR camera with x20 zoom optics

Kim, Hyun Sook; Yu, Wee Kyung; Park, Young Chan; Yoon, Eon Suk; Kim, Chang Woo; Song, In Seob; Hong, Seok-Min

doi:10.1117/12.445329

Cited by 3 publications

(2 citation statements)

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“…8 ADD has also developed successfully a compact midwavelength infrared (MWIR) zoom camera with a zoom range 20:1 for the airborne application that is based on a Sofradir's 320ⅹ240 IRFPA in the end of 1990's. [9][10] These systems are now in service with the Korean Army, Navy and Air Force.…”

Section: Introductionmentioning

confidence: 98%

Advanced thermal imaging system for tank sights

Hong

Kim

et al. 2005

SPIE Proceedings

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A new second generation advanced thermal imager, which can be used for battle tank sight has been developed in Korea.The IR optics has dual field of views such as 2.67×2° in NFOV and 10×7.5° in WFOV. This system uses a 480×6 TDI HgCdTe detector, operating in the 8-12µm wavelength, made by Sofradir. In order to correct non-uniformity of detector array, the two point correction method has been developed by using the thermo electric cooler. Additionally, to enhance the image of low contrast and improve the detection capability, the new technique of histogram processing has been proposed. Through these image processing techniques, we obtained the high quality thermal image.

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Section: Introductionmentioning

confidence: 98%

Advanced thermal imaging system for tank sights

Hong

Kim

et al. 2005

SPIE Proceedings

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“…In these systems, the wide field of view (WFOV) is used for observing a large scene area for possible targets of interest, and the narrow field of view (NFOV) is used for close-up identification of the target of interest. [3][4][5][6][7][8][9][10][11][12] In some circumstances, such as aerial surveillance and life rescue, there is a need for wider observation of the scene. 3 There is a significant need to design a MWIR zoom system with a large zoom ratio.…”

Section: Introductionmentioning

confidence: 99%

Mechanically compensated type for midwave infrared zoom system with a large zoom ratio

et al. 2013

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Abstract. In some circumstances, there is a need for a midwave infrared (MWIR) zoom system with a large zoom ratio. Using traditional fourcomponent mechanically compensated types of MWIR zoom systems cannot achieve a large zoom ratio. To meet this demand, we describe a six-component mechanically compensated type. The thin-lens theory of this type is developed and equations are presented. Using the six-component mechanically compensated type, a MWIR continuous zoom system with a zoom ratio of 45 is designed, and it has high image quality over the entire zoom range.

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