Camera with device for detecting line of sight

Details Camera with device for detecting line of sight Camera with device for detecting line of sight

1994-09-19

1996-02-13

Perkey, W. B.

354219, G03B 1302

Patent

active

054915325

ABSTRACT:
A camera with a device for detecting the line of sight is provided with a first light source for detecting the corneal reflected image of the eye and a second light source for detecting the boundary between the pupil and the iris or between the iris and the white of the eye, thereby effecting illuminations for these purposes with optimum illumination intensities. Thus the position of the Purkinje's first image and the central position of the pupil can be detected efficiently, and the direction of the line of sight can be accurately calculated.

REFERENCES:
patent: 4641349 (1987-02-01), Flom et al.
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5155516 (1992-10-01), Shindo
patent: 5182443 (1993-01-01), Suda et al.

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