Study of LED modulation effect on the photometric quantities and beam homogeneity of automotive lighting

Petr Koudelka; Patrik Hanulak; Jakub Jaros; Martin Papes; Jan Latal; Petr Siska; Vladimir Vasinek

doi:10.1117/12.2196299

29 July 2015 Study of LED modulation effect on the photometric quantities and beam homogeneity of automotive lighting

Petr Koudelka, Patrik Hanulak, Jakub Jaros, Martin Papes, Jan Latal, Petr Siska, Vladimir Vasinek

Proceedings Volume 9659, International Conference on Photonics Solutions 2015; 96591P (2015) https://doi.org/10.1117/12.2196299
Event: International Conference on Photonics Solutions 2015, 2015, Hua Hin, Thailand

Abstract

This paper discusses the implementation of a light emitting diode based visible light communication system for optical vehicle-to-vehicle (V2V) communications in road safety applications. The widespread use of LEDs as light sources has reached into automotive fields. For example, LEDs are used for taillights, daytime running lights, brake lights, headlights, and traffic signals. Future in the optical vehicle-to-vehicle (V2V) communications will be based on an optical wireless communication technology that using LED transmitter and a camera receiver (OCI; optical communication image sensor). Utilization of optical V2V communication systems in automotive industry naturally brings a lot of problems. Among them belongs necessity of circuit implementation into the current concepts of electronic LED lights control that allows LED modulation. These circuits are quite complicated especially in case of luxury cars. Other problem is correct design of modulation circuits so that final vehicle lightning using optical vehicle-to-vehicle (V2V) communication meets standard requirements on Photometric Quantities and Beam Homogeneity. Authors of this article performed research on optical vehicle-to-vehicle (V2V) communication possibilities of headlight (Jaguar) and taillight (Skoda) in terms of modulation circuits (M-PSK, M-QAM) implementation into the lamp concepts and final fulfilment of mandatory standards on Photometric Quantities and Beam Homogeneity.

Citation Download Citation

Petr Koudelka, Patrik Hanulak, Jakub Jaros, Martin Papes, Jan Latal, Petr Siska, and Vladimir Vasinek "Study of LED modulation effect on the photometric quantities and beam homogeneity of automotive lighting", Proc. SPIE 9659, International Conference on Photonics Solutions 2015, 96591P (29 July 2015); https://doi.org/10.1117/12.2196299

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