1. AdlOptica GmbH, Rudower Chaussee 29, 12489 Berlin, Germany
2. Department of Engineering Sciences and Mathematics, Luleå University of Technology, 97187 Luleå, Sweden
3. Profitet, 3-1-13, Tokiwa, Urawa-ku, Saitama-shi, Saitama-ken 330-0061, Japan
4. ShinHoTek, #1306, 19 Gasan digital 1-ro, Geumcheon-gu, Seoul 08594, South Korea