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Proceedings Paper

Wideband protection filter (WPF) integrated within optical systems
Author(s): G. Ritt; B. Eberle; R. Ebert; T. Fisher; B. Nemet; M. Oron; A. Donval
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Paper Abstract

Laser radiation may lead to permanent damage of the human eye when it is exposed to high power irradiation, especially when using magnifying optics such as binoculars, sights or periscopes. Into such an optical system we integrated a novel passive solid-state threshold-triggered Wideband Protection Filter (WPF) that blocks the transmission only if the power exceeds a certain threshold. 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 demonstrate the WPF integration within a typical optical system and the influence of system parameters on the protection capability of the filter.

Paper Details

Date Published: 2 October 2008
PDF: 9 pages
Proc. SPIE 7113, Electro-Optical and Infrared Systems: Technology and Applications V, 71130Y (2 October 2008); doi: 10.1117/12.799980
Show Author Affiliations
G. Ritt, FGAN-FOM, Research Institute for Optronics and Pattern Recognition (Germany)
B. Eberle, FGAN-FOM, Research Institute for Optronics and Pattern Recognition (Germany)
R. Ebert, FGAN-FOM, Research Institute for Optronics and Pattern Recognition (Germany)
T. Fisher, KiloLambda Technologies, Ltd. (Israel)
B. Nemet, KiloLambda Technologies, Ltd. (Israel)
M. Oron, KiloLambda Technologies, Ltd. (Israel)
A. Donval, KiloLambda Technologies, Ltd. (Israel)


Published in SPIE Proceedings Vol. 7113:
Electro-Optical and Infrared Systems: Technology and Applications V
David A. Huckridge; Reinhard R. Ebert, Editor(s)

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