Diffractive optics based automotive lighting system : A rear end lamp design for communication between road users

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Khan, M.S.; Saeed, W.M.; Roth, B.; Lachmayer, R.: Diffractive optics based automotive lighting system : A rear end lamp design for communication between road users. In: Advanced Optical Technologies 10 (2020), Nr. 1, S. 49-57. DOI: https://doi.org/10.1515/aot-2020-0055

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Zum Zitieren der Version im Repositorium verwenden Sie bitte diesen DOI: https://doi.org/10.15488/10720

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Zusammenfassung: 
Information projection using laser-based illumination systems in the automotive area is of keen interest to enhance communication between road users. Numerous work on laser-based front end projection employing refractive and reflective optics has been reported so far, while for rear end illumination efforts are more scarce and a different optical design concept due to limited volumetric size and field of view regulations is required. Here, we report on a new and versatile approach for a laser-based rear end lighting system for automotive application which enables projection of information or signals to support other road users. The design is based on thin diffractive optical elements projecting the desired patterns upon illumination. Also, for protection of the road users from the steering laser beam, a diffusive back projection screen is designed to project information while fulfilling both the field of view and safety requirements. The projection system is based on a periodic diffusive structure made of an array of biconic lenses with sizes in the millimeter range. The field of view (FOV) from the simulated lens arrays complies with the angular requirements set by the Economic Commission for Europe (ECE). As a proof of concept, the diffusive screen is fabricated using microfabrication technology and characterized. In future, the screen will be combined with thin diffractive optical elements to realize an entire integrated projection system. © 2020 Muhammad Shaukat Khan et al., published by De Gruyter, Berlin/Boston 2020.
Lizenzbestimmungen: CC BY 4.0 Unported
Publikationstyp: Article
Publikationsstatus: publishedVersion
Erstveröffentlichung: 2020
Die Publikation erscheint in Sammlung(en):Naturwissenschaftliche Fakultät

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1 image of flag of Germany Germany 85 36,48%
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5 image of flag of Czech Republic Czech Republic 14 6,01%
6 image of flag of China China 8 3,43%
7 image of flag of Taiwan Taiwan 7 3,00%
8 image of flag of Korea, Republic of Korea, Republic of 7 3,00%
9 image of flag of Turkey Turkey 6 2,58%
10 image of flag of Japan Japan 5 2,15%
    andere 34 14,59%

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