Novel compact dual-band LOROP camera with telecentricity

Kwang Woo Park, Jeong Yeol Han, Jongin Bae, Sug Whan Kim, Chang Woo Kim

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Abstract

We report a new dual band compact oblique photography camera (LC11) that is the first to benefit from the incorporation of telecentricity. LC11 has a common front end F/6.6 telescope with 280 mm in aperture that forms its electro-optical (EO, F/7.5) and MWIR (F/5.6) modules. The design allows a substantial reduction in volume and weight due to i) the EO/MWIR compensator and relay lens groups arranged very close to the primary mirror (M1), and ii) light-weighted M1 and SiC main frame (MF) structure. Telecentricity of up to 2 and 0.2 degrees for the EO and MWIR modules, respectively, is achieved by balancing optical power among all lenses. The initial field test shows 0.32±0.05 (EO) / 0.20±0.06 (MWIR) in measured MTF at 28 (EO) and 13 (MWIR) cycles/mm in target frequency, and an improved operability with a greater reduction in operational volume and mass than other existing LOROP cameras.

Original languageEnglish
Pages (from-to)10921-10932
Number of pages12
JournalOptics Express
Volume20
Issue number10
DOIs
Publication statusPublished - 2012 May 7

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Park, K. W., Han, J. Y., Bae, J., Kim, S. W., & Kim, C. W. (2012). Novel compact dual-band LOROP camera with telecentricity. Optics Express, 20(10), 10921-10932. https://doi.org/10.1364/OE.20.010921