Multiple waveband optical element

Details Multiple waveband optical element Multiple waveband optical element

1989-12-07

1991-03-19

Arnold, Bruce Y.

Communications: directive radio wave systems and devices (e.g.,

Clutter elimination

Mti

350 11, 350164, 342 22, G02B 110, G02B 528

Patent

active

050005278

ABSTRACT:
A multiple-waveband, e.g., for the infra-red and millimetric RF wavebands, optical element such as a window includes a core element and respective separately made outer elements secured to the core and having thicknesses and dielectric constants adapted to give anti-reflection characteristics.

REFERENCES:
patent: 2887684 (1958-05-01), Dexter et al.
patent: 3165749 (1965-01-01), Cushner
patent: 3310807 (1967-03-01), Kofoid
patent: 3911433 (1975-10-01), Redman
patent: 4797683 (1989-01-01), Kosowsky et al.

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