Imaging EO/IR optical system for long range oblique photography

Jeong-Yeol Han; Sergey Marchuk; Hooshik Kim; Chang-Woo Kim; Kwang-Woo Park

doi:10.1117/12.886696

25 May 2011 Imaging EO/IR optical system for long range oblique photography

Jeong-Yeol Han, Sergey Marchuk, Hooshik Kim, Chang-Woo Kim, Kwang-Woo Park

Proceedings Volume 8020, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications VIII; 802009 (2011) https://doi.org/10.1117/12.886696
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

In order to meet volume requirement and provide high image quality for a Long Range Oblique Photography (LOROP) system, we adopted Cassegrain-type telescope with lens compensators for the operation in both regions of 0.6 ~ 0.9 μm (EO channel) and 3.7 ~ 4.8 μm (IR channel). To provide dual-band functionality, the tilted plane-parallel plate is applied and acts as a beam splitter located in the space between primary and secondary mirrors. The system is near to telecentric in detector space (EO) and telecentric in intermediate image space (IR). The telecentricity provides image height constancy while adjusting the focus. The optical system includes Back Scan Mechanism (BSM) to compensate image blurring for integration time.

Citation Download Citation

Jeong-Yeol Han, Sergey Marchuk, Hooshik Kim, Chang-Woo Kim, and Kwang-Woo Park "Imaging EO/IR optical system for long range oblique photography", Proc. SPIE 8020, Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications VIII, 802009 (25 May 2011); https://doi.org/10.1117/12.886696

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