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Proceedings Paper

Smart filters: from VIS/NIR to MW/LWIR protection
Author(s): Ariela Donval; Tali Fisher; Ofir Lipman; Moshe Oron
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Paper Abstract

New development of imaging systems implies the use of multi band wavelength, VIS and IR, for imaging enhancement and more data presenting. Some of those systems, such as <see spot<, are designed for applications requiring in plus, the ability to see the aiming point of a laser designator. The use of a designating laser to assist in target identification and tracking can unintentionally result in a laser beam reflected back into the sensor, leading to transient dazzling or permanent damage of the sensor. We propose a novel passive Wideband Protection Filter (WPF) that blocks the transmission only if the power exceeds a certain threshold. We present a special design of WPF suitable for dual- and multi- band wavelength range, including transmission and functionality performances. We demonstrate a new design transferring our WPF filter from VIS/NIR into the MW/LWIR.

Paper Details

Date Published: 24 June 2014
PDF: 6 pages
Proc. SPIE 9070, Infrared Technology and Applications XL, 90700R (24 June 2014); doi: 10.1117/12.2049601
Show Author Affiliations
Ariela Donval, KiloLambda Technologies, Ltd. (Israel)
Tali Fisher, KiloLambda Technologies, Ltd. (Israel)
Ofir Lipman, KiloLambda Technologies, Ltd. (Israel)
Moshe Oron, KiloLambda Technologies, Ltd. (Israel)

Published in SPIE Proceedings Vol. 9070:
Infrared Technology and Applications XL
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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