Abstract
This study proposes an interactive information display system using spatial coordinate measurement. The system is under design to project information just around a working spot, for example of drilling, in order to avoid the decrease of concentration caused by the eye movement to look at somewhere else. This paper presents experimental study on information display by a carpenter's level prior to the information projection. Two types of experiments were conducted to evaluate the feasibility of leveling information shown by a carpenter's level during drilling work. Experiment 1 was vertical drilling to make a vertical hole of 4mm in diameter and 20mm depth onto a wood block. Experiment 2 was horizontal drilling to make a horizontal hole of the same diameter and depth as the experiment 1. According to the results of these experiments, significant effect was not observed in both directions, partly because of the inaccuracy of leveling installation and the small number of subjects.
