Optical and electromagnetic field

Details Optical and electromagnetic field Optical and electromagnetic field

1992-10-14

1993-12-28

Anderson, Bruce C.

Radiant energy

Radiation controlling means

Shields

G21F 100

Patent

active

052742415

ABSTRACT:
A vanadium oxide compound having the formula VO.sub.2 is disclosed for the purpose of selectively shielding an electromagnetic transmitter or receiver. Vanadium oxide exhibits a marked and rapid transition from dielectric and transparent to electromagnetic radiation to metallic and impervious to such radiation at a specific temperature, 68.degree. C. The compound is preferably mounted as a thin layer on a substrate which has been specifically selected for the desired application. The transmission of radiation is then temperature selected. The preferred method of deposition is an organic hydrolysis reaction.

REFERENCES:
patent: 3834793 (1974-09-01), McConnell et al.
patent: 4283113 (1981-08-01), Eden
patent: 4393095 (1983-07-01), Greensburg
patent: 4421985 (1983-12-01), Billingsley et al.

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