24 June 2014 Smart filters: from VIS/NIR to MW/LWIR protection
Author Affiliations +
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.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ariela Donval, Ariela Donval, Tali Fisher, Tali Fisher, Ofir Lipman, Ofir Lipman, Moshe Oron, Moshe Oron, "Smart filters: from VIS/NIR to MW/LWIR protection", Proc. SPIE 9070, Infrared Technology and Applications XL, 90700R (24 June 2014); doi: 10.1117/12.2049601; https://doi.org/10.1117/12.2049601
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT


Back to Top