Optical filter for focal-plane applications

Alexander V. Parfenov; Igor N. Kompanets

doi:10.1117/12.138170

25 November 1992 Optical filter for focal-plane applications

Alexander V. Parfenov, Igor N. Kompanets

Proceedings Volume 1697, Acquisition, Tracking, and Pointing VI; (1992) https://doi.org/10.1117/12.138170
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

An IR-spatial filter is proposed for usage in a focal plane. This filter screens the IR-array locally, where the IR signal is followed by a signal in the visible region (only noisy signals or jamming interferences are assumed to be followed by visible light). The filter discussed here is based on a photosensitive spatial light (IR) modulator, abruptly diminishing its transmittance in IR, when (and where) visible light intensity is over the settled threshold. The experiments were performed when the attenuation of interference was about one order.

Citation Download Citation

Alexander V. Parfenov and Igor N. Kompanets "Optical filter for focal-plane applications", Proc. SPIE 1697, Acquisition, Tracking, and Pointing VI, (25 November 1992); https://doi.org/10.1117/12.138170

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