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Proceedings Paper

Smart filters for image sensor enhancement
Author(s): Noam Gross; Tali Fisher Masliah; Eran Partouche; Ariela Donval
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Paper Abstract

Remote sensing systems of various kinds are the most widely used tools for acquiring information within all areas of our life. However, those optical sensors, cameras and imaging systems are susceptible to blindness and/or damages due to high power signal entering their optics. This paper presents a family of non-linear, solid-state passive wideband smart protection filters. These filters have advantages over fixed spectral filters, which permanently block only specific wavelengths, in that the wideband filter is transparent at all wavelengths until it is hit by damaging light. At input powers below threshold, the filter has high transmission over the whole spectral band. However, when the input power exceeds the threshold power, transmission is decreased dramatically. We present a novel technology for protection of any imaging system, sensors and the human eye against sun blindness as well as laser threats from the visible and up to the infrared (IR).

Paper Details

Date Published: 13 May 2019
PDF: 7 pages
Proc. SPIE 10980, Image Sensing Technologies: Materials, Devices, Systems, and Applications VI, 109800Q (13 May 2019); doi: 10.1117/12.2518356
Show Author Affiliations
Noam Gross, Elbit Systems Ltd. (Israel)
Tali Fisher Masliah, Elbit Systems Ltd. (Israel)
Eran Partouche, Elbit Systems Ltd. (Israel)
Ariela Donval, Elbit Systems Ltd. (Israel)

Published in SPIE Proceedings Vol. 10980:
Image Sensing Technologies: Materials, Devices, Systems, and Applications VI
Nibir K. Dhar; Achyut K. Dutta; Sachidananda R. Babu, Editor(s)

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