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Proceedings Paper

A novel optical gating method for laser gated imaging
Author(s): Ran Ginat; Ron Schneider; Eyal Zohar; Ofer Nesher
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Paper Abstract

For the past 15 years, Elbit Systems is developing time-resolved active laser-gated imaging (LGI) systems for various applications. Traditional LGI systems are based on high sensitive gated sensors, synchronized to pulsed laser sources. Elbit propriety multi-pulse per frame method, which is being implemented in LGI systems, improves significantly the imaging quality. A significant characteristic of the LGI is its ability to penetrate a disturbing media, such as rain, haze and some fog types. Current LGI systems are based on image intensifier (II) sensors, limiting the system in spectral response, image quality, reliability and cost. A novel propriety optical gating module was developed in Elbit, untying the dependency of LGI system on II. The optical gating module is not bounded to the radiance wavelength and positioned between the system optics and the sensor. This optical gating method supports the use of conventional solid state sensors. By selecting the appropriate solid state sensor, the new LGI systems can operate at any desired wavelength. In this paper we present the new gating method characteristics, performance and its advantages over the II gating method. The use of the gated imaging systems is described in a variety of applications, including results from latest field experiments.

Paper Details

Date Published: 18 June 2013
PDF: 11 pages
Proc. SPIE 8704, Infrared Technology and Applications XXXIX, 87042K (18 June 2013); doi: 10.1117/12.2018118
Show Author Affiliations
Ran Ginat, Elbit Systems (Israel)
Ron Schneider, Elbit Systems (Israel)
Eyal Zohar, Elbit Systems (Israel)
Ofer Nesher, Elbit Systems (Israel)


Published in SPIE Proceedings Vol. 8704:
Infrared Technology and Applications XXXIX
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton; Patrick Robert, Editor(s)

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