Gnac on 10 March 2010
Not only can the Wiimote detect depth using the sensor bar, it can also determine at what angle it is pointing. Each end of the sensor bar has a cluster of 5 LEDs, with the outer two pointing outwards at 45deg angles. The infra-red camera in the Wiimote works out the distance between the outer LEDs and the three in the middle to calculate angle.
Patent 2007/0211026 (Fig. 16, State D)
Patent 2007/0211027 (Figs. 21-23)
WHERE IS MY KORORINPA 3
