To provide a method for measuring a pupil position, capable of accurately and easily measuring a pupil position on a lens surface for each lens region of a bifocal lens.
In a method for measuring a pupil position, first, the subject 2 wearing a spectacle frame 1 is irradiated with strobe light from a distant measuring position and the strobe light reflected from pupils of the subject 2 is photographed by a camera 11 at the distant measuring position. Then, on the basis of image data obtained from the photographing, a right pupil position (X1, Y1) and a left pupil position (X2, Y2) of the subject 2 from a center point O of the spectacle frame 1 are electronically determined. Next, the subject 2 wearing the spectacle frame 1 is irradiated with strobe light from a near measuring position and the strobe light reflected from pupils of the subject 2 is photographed by a camera 11 at the near measuring position. Then, on the basis of image data obtained from the photographing, the right pupil position (X3, Y3) and the left pupil position (X4, Y4) of the subject 2 from the center point O of the spectacle frame are electronically determined.
NIPPON ACP KK
Takenobu Matsumoto