一种双瞳孔量测方法，包含下列步骤。发射第一可 见光束以及第一不可见光束至右眼。发射第二可见光束以及第二不可见光束至左眼。以光学单元接收来自右眼以及左眼反射之光束，并导引第一不可见光束以及第二不可见光束至成像单元。透过来自光学单元的第一不可见光束以及第二不可见光束，分别记录右眼以及左眼之影像。

A method for measuring dual pupils includes following steps. A first visible light beam and a first invisible light beam are emitted toward a right eye. A second visible light beam and a second invisible light beam are emitted toward a left eye. An optical unit receives the light beams reflected from the right eye and the left eye, and the first invisible light beam and the second invisible light beam are guided to an imaging unit by the optical unit. Images of the right eye and the left eye are respectively recorded through the first invisible light and the second invisible light beam traveling from the optical unit.