抄録
A typical interaction research is intended for awakened users operating in bright places. However, as computer technology becomes ubiquitous and becomes avail able in every aspect of life, there are increasing opportunities to operate devices in a semi-wake state in dark places, such as bedrooms before going to bed. In this study, we propose interaction for non-awake users in a dark bedroom that does not disturb sleep. Focusing on the fact that rod photoreceptors work in the dark, we adopted a green ceiling projection to stimulate it. We designed, prototyped and evaluated an interface for checking and locking an air conditioner, lighting, alarm, security camera, handwritten memo, and entrance key.
