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Alina Hang
A Concept to Extend the Mobile Interaction Space with a Projected Aura
Workshop on Mobile and Personal Projection at CHI'2011. Vancouver, Canada.

Miniaturization in projection technology makes it possible to integrate projectors into mobile devices like tablets, PDAs, or mobile phones. This offers new capabilities for input and output, which are seen as promising possibilities to overcome the limited screen size of mobile devices. However, it is still unclear, how projection will be used in combination with the traditional mobile devices screen. In this paper, we propose a new concept, which allows users to extend the screen of their mobile device by using a set of integrated projectors. Taking advantage of the four directions, multiple projection spaces for interaction are created next to the mobile devices screen, avoiding projection jitter, arm fatigue and attention shifts between projection and mobile device display, which are recurrent problems addressed in previous work.