| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To allow each person to comfortably wake up when a plurality of persons are sleeping in a bedroom. <P>SOLUTION: Two beds 11, 12 are arranged side-by-side in the bedroom 10. A setting device 13 having a function for setting an alarm timer and so forth is installed on a wall surface of the bedroom 10. A projector device 15 is attached above the beds 11, 12, and allows appreciation of a movie and so forth. The projector device 15 includes an alarm function (optical awakening function) for awakening a user while sleeping in the beds 11, 12. When performing the optical awakening, the direction of the optical axis of the projector device 15 is altered to emit light directed downward. Accordingly, the light is emitted toward the head of the user while sleeping so that the user is awakened by the light. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
