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18 June 2024 Recent developments and patents in infrared zoom lenses: a survey through the 2010s and beyond
Gokul Raju, Vladan Blahnik
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Proceedings Volume 13019, Optical Design and Engineering IX; 1301914 (2024) https://doi.org/10.1117/12.3016615
Event: SPIE Optical Systems Design, 2024, Strasbourg, France
Abstract
Research and developments on thermal infrared zoom lenses over the last decade (2010 onwards) will be surveyed in this talk, with a special focus on mechanically compensated continuous zooms for cooled detectors. During the time period under consideration, SWaP (Size- Weight and Power) optimized optomechanical systems were realized, to compactly fit zoom imaging functionality in previously unconventional platforms such as UAVs (Unmanned Aerial Vehicles). Dual band zoom systems, imaging in both the Mid wave (MWIR) and Long Wave (LWIR) thermal regimes have been explored. There has been considerable research and development activity in the field of chalcogenide material technologies which open up design possibilities for broadband transmission applications (VIS through LWIR). The feasibility of zoom functions implemented via non-traditional elements such as metalenses, Alvarez lenses, deformable mirrors, and multi-layer Diffractive Optical Elements (MLDOE) have been demonstrated.
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Gokul Raju and Vladan Blahnik "Recent developments and patents in infrared zoom lenses: a survey through the 2010s and beyond", Proc. SPIE 13019, Optical Design and Engineering IX, 1301914 (18 June 2024); https://doi.org/10.1117/12.3016615
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KEYWORDS
Lenses
Infrared zoom
Patents
Zoom lenses
Imaging systems
Design and modelling
Long wavelength infrared
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