Non-self supporting optical device with support structure

Details Non-self supporting optical device with support structure Non-self supporting optical device with support structure

1988-03-10

1990-05-22

Arnold, Bruce Y.

350370, G02B 530

Patent

active

049272365

ABSTRACT:
An optical arrangement is described, which has an optically effective arrement and a supporting structure therefor. The optically effective arrangement has such a slight thickness which alone is not sufficiently stable mechanically and which is designed for the transmission of optical radiation of a predetermined wavelength region. The supporting arrangement has a metallic planar structure with a plurality of apertures separated by webs. The width (a) of the apertures is larger than the half of the wave length and the sum (a+b) of the width of an aperture (14) and of an adjoining web (12) is smaller than the wave length. Such supporting arrangement transmits a vertically incident radiation without loss. Optical arrangement (10) mounted on the support structure can be, for example, an optically effective layer or a grid of parallel thin wires which rung perpendicularly with respect to the slot-like apertures of the supporting structure.

REFERENCES:
patent: 4289381 (1981-09-01), Garvin et al.

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