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Luminaire embedded in road surface with helmholz holes

IP.com Disclosure Number: IPCOM000009396D
Publication Date: 2002-Aug-21
Document File: 1 page(s) / 5K

Publishing Venue

The IP.com Prior Art Database

Abstract

ID610578

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ID 610578

Luminaire embedded in road surface with helmholz holes

    To reduce the noise caused by a dynamic road marking luminaire embedded in a road surface when being driven over by a motor vehicle, said luminaire is provided with at least one Helmholz hole resonator. The holes being positioned directly in front of the luminaire viewed in the drive-direction. The dimensions of the holes are to be determined in dependency of the frequency of the noise produced. The holes can simultaneously serve as a dust/pollution collector.

Disclosed anonymously.