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21 September 2011 Design of a compact objective for SWIR applications
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Abstract
Lately the short-wave infrared (SWIR) has become very important due to the recent appearance on the market of the small detectors with a large focal plane array. Military applications for SWIR cameras include handheld and airborne systems with long range detection requirements, but where volume and weight restrictions must be considered. In this paper we present three different designs of telephoto objectives that have been designed according to three different methods. Firstly the conventional method where the starting point of the design is an existing design. Secondly we will face design starting from the design of an aplanatic system. And finally the simultaneous multiple surfaces (SMS) method, where the starting point is the input wavefronts that we choose. The designs are compared in terms of optical performance, volume, weight and manufacturability. Because the objectives have been designed for the SWIR waveband, the color correction has important implications in the choice of glass that will be discussed in detail.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jose M. Infante Herrero, Marta C. de la Fuente, Wang Lin, Juan Carlos Miñano Dominguez, Pablo Benítez, Guillermo Biot, Hammed Ahmadpanahi, and Andres F. Cifuentes "Design of a compact objective for SWIR applications", Proc. SPIE 8167, Optical Design and Engineering IV, 81670K (21 September 2011); https://doi.org/10.1117/12.897283
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