Abstract
In this paper, we have studied the presentation method for support of lookout by Artificial Reality (AR). We tried fundamental experiment that subject find mark and presume aspect. Results are summarized as follows ; (1) In the size of mark, we require viewing angle in excess of 0.3 degrees by 0.1 degrees to find mark. (2) In the case of (1), form of mark don't affect finding time. (3) In color of mark, yellow and white is a short finding time, but blue and green is a long finding time. (4) Presumed accuracy of aspect is far improvement on depression angle of 10 degrees.
