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Dirty Headlamps – Efficiency of Headlamp Cleaning Devices and the Impact on Stray Light: Method and first results

Schiller, Christoph ; Kosmas, Kyriakos ; Kobbert, Jonas ; Khanh, Tran Quoc
Khanh, Tran Quoc (ed.) :

Dirty Headlamps – Efficiency of Headlamp Cleaning Devices and the Impact on Stray Light: Method and first results.
In: International Symposium on Automotive Lighting (ISAL), 25.-27.09.2017, Darmstadt. In: Darmstädter Lichttechnik , 17 . München
[Konferenz- oder Workshop-Beitrag], (2017)

Kurzbeschreibung (Abstract)

This paper presents selected results of a field study realized in February 2017 to test the effect of dirt on the headlamps on stray light as well as the necessity of headlamp cleaning devices (HCD). The results show that with an increasing amount of dirt on the surface of a headlamp the amount of light available below the cut-off (vison of the driver) is reduced in a distinct way. Therefore, the light level in the region above the cut-off is increased due to the scattering of light from below the cut-off. This effect is especially true for the region around the HV-point. It can be shown that the activation of a HCD reduces the amount of dirt on the headlamp surface especially for higher degrees of soiling.

Typ des Eintrags: Konferenz- oder Workshop-Beitrag (Keine Angabe)
Erschienen: 2017
Herausgeber: Khanh, Tran Quoc
Autor(en): Schiller, Christoph ; Kosmas, Kyriakos ; Kobbert, Jonas ; Khanh, Tran Quoc
Titel: Dirty Headlamps – Efficiency of Headlamp Cleaning Devices and the Impact on Stray Light: Method and first results
Sprache: Deutsch
Kurzbeschreibung (Abstract):

This paper presents selected results of a field study realized in February 2017 to test the effect of dirt on the headlamps on stray light as well as the necessity of headlamp cleaning devices (HCD). The results show that with an increasing amount of dirt on the surface of a headlamp the amount of light available below the cut-off (vison of the driver) is reduced in a distinct way. Therefore, the light level in the region above the cut-off is increased due to the scattering of light from below the cut-off. This effect is especially true for the region around the HV-point. It can be shown that the activation of a HCD reduces the amount of dirt on the headlamp surface especially for higher degrees of soiling.

Buchtitel: Proceedings of the 12th International Symposium on Automotive Lighting (ISAL), ISBN 978-3-8316-4671-5
Reihe: Darmstädter Lichttechnik
Band: 17
Ort: München
Freie Schlagworte: Glare Free High Beam, Headlamp cleaning Device (HCD), Stray Light
Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektromechanische Konstruktionen
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektromechanische Konstruktionen > Lichttechnik
Veranstaltungstitel: International Symposium on Automotive Lighting (ISAL)
Veranstaltungsort: Darmstadt
Veranstaltungsdatum: 25.-27.09.2017
Hinterlegungsdatum: 08 Feb 2018 13:45
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