Credits

I woluld like to thank the following persons and companies for their support, emphasizing the continuous commitment of my former mathematics and computer science teacher:

• Especially I would like to thank my mentor Wilfried Grunewald, mathematics, physics and computer science teacher at the Theodor-Heuss-Gymnasium Dinslaken. Mr. Grunewald supported me with great personal commitment right from the start.
• Conta Optik company
  Solltudestr. 40
  71638 Ludwigsburg, especially Frau Schlechter
  Conta Optic in association with an english contact lens manufacturer granted me a specially configured contact lens.
• Conrad company
  Klaus-Conrad Str. 1
  92240 Hirschau, especially Mr. Hirmer
  Conrad granted me a discount on components and measuring instruments as well as on the B/W camera.
• ELV, company
  especially Mr. Wiemers
  ELV gave me discount on components and measuring instruments as well.
• Elektor company,
  especially Raimund Krings.
  Elektor gave me a Compuboard for experimental use.
• Siemens company
  Siemens put a microcontroler 80c166 at my disposal.
• Eye specialists Mrs. and Mr. Dr. Küllenberg
  They measured my eyes and answered my questions concerning the eyes.
• Institut Volmarstein
  the institute helped me in association with engineer Mr. Humann and psychologist Rainer Wallbruch, to adapt my system to the needs of disabled persons. Furthermore, they gave me a demo version of the BASCO-system so we could match our systems.
• Dr. Möller,
  physician at the Uni-Klinik Düsseldorf. Dr.Möller helped me to estimate possible eye injuries caused by infrared light.
• Mr. Prof. Dr. S. Bethke
  he granted me hard disk space on the RWTH Aachen physics webserver.
• My fellow student ·Jan Sievers he composed this homepage.
• And last, but not least my parents and friends, who helped me proof-reading.