Novel compact dual-band LOROP camera with telecentricity

Optics Express
Kwang-Woo ParkYun-Woo Lee

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.

References

Feb 12, 2008·Applied Optics·J C LeachtenauerN Salvaggio
Mar 20, 2008·Applied Optics·J C LeachtenauerN Salvaggio
Mar 21, 2008·Applied Optics·P E MurphyD T Moore
Aug 22, 2005·Optics Express·Zhilin Hu, Andrew Rollins
Sep 4, 2006·Optics Express·Slimane DjidelAlan H Greenaway
Jun 23, 2009·Applied Optics·Yung-Sung Lan, Chih-Ming Lin

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