Optically transmissive Faraday cage

Details Optically transmissive Faraday cage Optically transmissive Faraday cage

1993-08-19

1994-12-13

Picard, Leo P.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

174 35MS, 428333, H05K 900

Patent

active

053731026

ABSTRACT:
The structure of this invention provides a means for shielding an optically ensitive detector, device, or components from electromagnetic fields without shielding them from the optical spectra desired to be transmitted. The structure of the invention is in the form of an optically transmissive Faraday cage or box having optically transparent material selected from optical glass and optically transparent plastic which functions as a substrate. The substrate is provided a thin film of predetermined skin depths in the form of a conductive coating selected from silver and a nickel-chromiumiron-manganese-silicon-copper-alloy. The conductive coating is applied in a thickness equivalent to a predetermined number of skin depths in order to attenuate an external electromagnetic field strength to meet the tolerance of the detector, device, or components which are to be shielded.

REFERENCES:
patent: 4412255 (1983-10-01), Kuhlman et al.
patent: 4613530 (1986-09-01), Hood et al.
patent: 4631214 (1986-12-01), Hasegawa
patent: 4978812 (1990-12-01), Akeyoshi et al.
patent: 5012041 (1991-04-01), Sims et al.
patent: 5017419 (1991-05-01), Smith
patent: 5136119 (1992-08-01), Leyland
patent: 5147694 (1992-09-01), Clarke

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