초록 ▼

An optical apparatus includes a pupil illuminator for illuminating the pupil of an eye of an individual, an imager for obtaining an image of the pupil and an image of the cornea of the eye, a presentor for preliminarily presenting an image positioned at a particular point to the eye, and a direction

An optical apparatus includes a pupil illuminator for illuminating the pupil of an eye of an individual, an imager for obtaining an image of the pupil and an image of the cornea of the eye, a presentor for preliminarily presenting an image positioned at a particular point to the eye, and a direction-of-line-of-sight calculator for calculating the direction of the line of sight of the eye using the positional relationship between the image of the pupil and the image of the cornea on an imaging surface of the imager, and calculating the direction of the line of sight using parameters relating to the image of the pupil and the image of the cornea. The values of the parameters are obtained from the positional relationship between the image of the pupil and the image of the cornea on the imaging surface of the imager when the eye views the image at the particular point.

대표청구항 ▼

[ What is claimed is:] [1.] An optical apparatus, comprising:pupil illuminating means for illuminating the pupil of an eye of an individual;area sensor means for obtaining an image of the pupil illuminated by said pupil illuminating means and a cornea reflection of said pupil illuminating means, sai

[ What is claimed is:] [1.] An optical apparatus, comprising:pupil illuminating means for illuminating the pupil of an eye of an individual;area sensor means for obtaining an image of the pupil illuminated by said pupil illuminating means and a cornea reflection of said pupil illuminating means, said area sensor means obtaining the image via a beam dividing device;presenting means for preliminarily presenting at least two visual target points positioned at least in two particular directions with respect to the eye via the beam dividing device; anddirection-of-line-of-sight calculation means for calculating the direction of the line of sight of the eye, said direction-of-line-of-sight calculation means calculating the direction of the line of sight of the eye using a positional relationship between the image of the pupil and the cornea reflection on an imaging surface of said area sensor means, and calculating the direction of the line of sight using at least one parameter characteristic of the eye relating to the image of the pupil and the cornea reflection;wherein the value of said at least one parameter is obtained from the positional relationship between the image of the pupil and the cornea reflection on the imaging surface of said area sensor means when the eye views the at least two visual target points positioned in said at least two particular directions.