| 摘要 |
PROBLEM TO BE SOLVED: To minimize the influence of the dispersion of visual line position generated by the difference in grazing ability among individuals to allow the selection of an intended area to each of persons using equipment. SOLUTION: This device comprises a visual line detecting means for detecting the visual line within a screen of an observer, and a distribution arithmetic means #311 for arithmetically calculating the dispersion of visual line position of the observer in grazing from two or more visual line positions detected when the observer is made to graze the same position. According to the arithmetic result of the distribution arithmetic means, the control for determining the grazing area to be grazed by the observer from the visual line positions is varied. |
