Optical: systems and elements – Absorption filter
Patent
1989-07-20
1992-11-03
Moskowitz, Nelson
Optical: systems and elements
Absorption filter
356234, G02B 524, H01C 716
Patent
active
051610680
ABSTRACT:
An optical reflection band filter structure for selectively blocking radiation within a preselected range of wavelengths is described which comprises a plurality of multipole elements of preselected configuration deposited with prescribed spacing in a periodic array on a substrate of dielectric material, each multipole configuration comprising a central element having shape corresponding to the overall shape of the multipole and a plurality of adjacent connected segments, all comprising a material characterized by transition from superconducting phase to insulating phase, upon being heated to a characteristic transition temperature, the central element having predetermined thickness and each transition segment disposed outwardly from the center element having higher transition temperature than the next inwardly disposed transition segment, and the central element.
REFERENCES:
patent: H39 (1986-03-01), Gubser et al.
patent: 3623795 (1971-11-01), Taylor et al.
patent: 3773684 (1973-11-01), Marks
patent: 3790250 (1974-02-01), Mitchell et al.
patent: 3818390 (1974-06-01), Gikow et al.
patent: 3857114 (1974-12-01), Minet et al.
patent: 3956727 (1976-05-01), Wolf
patent: 4093353 (1978-06-01), Lang
patent: 4099854 (1978-07-01), Decker et al.
patent: 4114985 (1978-09-01), Friedman
patent: 4180605 (1979-12-01), Gilbert et al.
patent: 4261331 (1981-04-01), Stephens
patent: 4307942 (1981-12-01), Chahroudi
patent: 4499441 (1985-02-01), Lynch et al.
patent: 4521682 (1985-06-01), Murakami et al.
patent: 4657345 (1987-04-01), Gordon
patent: 4707303 (1987-11-01), Buckley et al.
patent: 4713795 (1987-12-01), Woike et al.
patent: 4719342 (1988-01-01), Cohn et al.
patent: 4737000 (1988-04-01), Garlick et al.
patent: 4754384 (1988-06-01), Levy et al.
patent: 4818898 (1989-04-01), Anderson et al.
patent: 4855078 (1989-08-01), Leslie
Muirhad, C. M.; "Liquids and Aerial Application"; IEE Callop on High Temp. Superconductors; Dig. 114, pp. 7/1-4, Nov. 9, 1988, Abst. only.
Kharmas et al.; "High Tec Superconducting . . . Antenna"; Electron. Lett., vol. 24, #8, pp. 460-461, Apr. 14, 1988; Abst. only.
Pankratov et al.; "Spectral Manifestation . . . "; Opt. Spektroch., vol. 41, #6, pp. 983-989, Dec. 1976; Abst. Only.
Moskowitz Nelson
Scearce Bobby D.
Singer Donald J.
The United States of America as represented by the Secretary of
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