%0 Journal Article %T Mixed Reality Systems %A Dieter M¨¹ller %J International Journal of Online Engineering (iJOE) %D 2009 %I Kassel University Press %R 10.3991/ijoe.v5s2.1094 %X Currently one of the most challenging aspects of human computer interaction design is the integration of physical and digital worlds in a single environment. This fusion involves the development of "Mixed Reality Systems¡±, including various technologies from the domains of augmented and virtual reality. In this paper I will present related concepts and discuss lessons learned from our own research and prototype development. Our recent work involves the use of mixed reality (as opposed to ¡®pure¡¯ virtual reality) techniques to support seamless collaborative work between remote and hands-on laboratories. %U http://www.online-journals.org/index.php/i-joe/article/view/1094