Ishigaki H, Edagawa H, Miyao M
Aichi Institute of Technology, Toyota, Japan.
Percept Mot Skills. 1995 Aug;81(1):191-4. doi: 10.2466/pms.1995.81.1.191.
We measured the focal distance and pupil diameter on the eyes of 11 marksmen sighting a pistol target at 23 m distance. Both upon the focal distance and pupil diameter of the subjects, we estimated the point at which they were looking during sighting. Calculation based on depth of field which can be divided from the pupil diameter of 4.5 mm suggested that the subjects were looking at the foresight of the pistol approximately 80 cm in front of the eye during sighting.
我们测量了11名射手在23米距离瞄准手枪靶时眼睛的焦距和瞳孔直径。基于这两个指标，我们估算了他们在瞄准过程中注视的点。根据可从4.5毫米瞳孔直径划分出的景深进行计算表明，受试者在瞄准过程中注视的是眼睛前方约80厘米处的手枪准星。
