| 摘要 |
A beacon light assembly shield for shield from ground level the light emitted by tower mounted beacon lights for aircraft, the assembly comprising a plurality of spaced concentric frustroconically shaped elements having a centrally located aperture, the element being interconnected, and each element being spaced from an adjacent element such that a distance between a first horizontal plane coincidental with an inner peripheral edge and a second horizontal plane coincidental with an outer peripheral edge is no greater than 75% of a distance between first horizontal planes of adjacent elements. The assembly effectively eliminates light pollution from ground level while permitting visual access for aircraft.
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