interface. The interface is designed to couple realistic representations of the lit environment to the underlying control information in these environments, where the physical movement and manipulations of the representations serve as the primary means of control. These representations naturally and meaningfully map the lighting layers of the lit environment so that their control operations have directly perceivable consequences. As it is programmed to work on an iPod Touch, it becomes a part of the lit environment in terms of look and feel as well as daily activities and rituals. This prototype tangible interface was subsequently tested and evaluated by test subjects, and their design ideas further iterated. Test results show that the tangible lighting control interface enables end-users to perform the different lighting control functions quickly and effectively, as the lit environment and the interface become a single entity while achieving the desired lit scenario. The final conclusion drawn from this research is that TUIs that offer end-users freedom of personal expression alongside functional information make lighting controls easier to understand and more pleasurable to use. a_dugar@msn.com


This article is based on a PhD research project supervised by Dr. Michael R. Donn, Christopher Cuttle and Werner Osterhaus.


Suggested further readings: 1. Dugar, A.M. and M.R. Donn, Tangible intervention - Improving the effectiveness of lighting control systems. Lighting Research & Technology, 2011; 43(3): p. 381-393. 2. Dugar, A.M., Tangible Lighting Controls - a framework for improving the interactivity and usability of lighting control interfaces. Lighting - Art & Science for International Designers, 2010. 30(2): p. 34-42. 3. Dugar, A.M., M.R. Donn, and W. Osterhaus, Tangible Lighting Controls - Reporting end-users’ interactions with lighting control interfaces. (in review) 4. Dugar, A.M., M.R. Donn, and S. Marshall, Designing tangible lighting control interfaces. (in review)


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