Visual spatial point detecting method for calculating distance between object and left and right human eyes, involves receiving coordinate signal of external convergent point to readjust position of another convergent point

摘要

The method involves receiving scattered light (102) emitted from a point light source (101). A coordinate signal (190) of a convergent point of a visual spatial point detection unit and a coordinate signal (191) of an object point of the light source are calculated. The coordinate signals are overlapped by adjustment of the convergent point in order to automatically track the object point. A coordinate signal (192) of an external convergent point is received by the detection unit to readjust a position of the convergent point of the detection unit and to locate the convergent point.