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14 May 2019 Metric zoom and you: an accurate tomorrow, approximately today
Joshua B. Bettinger, Brian Packard, Steven H. Vogel
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Proceedings Volume 10998, Advanced Optics for Imaging Applications: UV through LWIR IV; 109980N (2019) https://doi.org/10.1117/12.2519051
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States
Abstract
There is a growing need for lenses capable of determining the precise object distance and field of view (FOV) which needs to be met with a high degree of accuracy and repeatability. Difficulties achieving this accuracy arise with zoom lenses due to the dependence of field of view on the focus position. The depth of field phenomenon is also an issue which must be addressed. In addition, the accurate measurement of element positions can also be an issue. In this paper, we will explore these challenges and offer a solution in the form of metric zoom capability.
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Joshua B. Bettinger, Brian Packard, and Steven H. Vogel "Metric zoom and you: an accurate tomorrow, approximately today", Proc. SPIE 10998, Advanced Optics for Imaging Applications: UV through LWIR IV, 109980N (14 May 2019); https://doi.org/10.1117/12.2519051
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KEYWORDS
Distance measurement
Zoom lenses
Sensors
LIDAR
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