| 摘要 |
PURPOSE:To provide a visual axis detector capable of detecting the visual axis of one's eyeball with high accuracy by obtaining the positional coordinate of a first Purkinje image based on reflected light from one's eyeball and that of the pupil by the use of an image sensor and properly controlling the integrating time of the image sensor and a projected light amount from a projector. CONSTITUTION:A light flux from a projecting means 7 is incident on one's eyeball 201, and the positional coordinate of a Purkinje image based on the reflected ray from the eyeball and that of the pupil are detected by a detecting means 4 having an image sensor 4a. When the visual axis of eyeball is obtained by the use of these positional coordinates detected by the detecting means 4, the integrating time of the image sensor 4a is changed by an integrating time control means 9 on the basis of the output signal from a photometric sensor 8 for photometry of brightness near the front of the eyeball, while a luminescent amount from the projecting means 7 is changed by a luminescence control means 5. |
