Visual line direction detecting device for the camera

Details Visual line direction detecting device for the camera Visual line direction detecting device for the camera

1993-02-23

1994-08-02

Perkey, W. B.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

354222, 351210, G03B 1302, A61B 314

Patent

active

053350359

ABSTRACT:
A visual line direction detecting device includes a finder optical system of a camera. A light-emitting means radiates light on the eyeball of the user through at least a portion of the finder optical system. A light-receiving means receives the light reflected by the eyeball of the user. A storage means stores an output from the light-receiving means, obtained when the user watches a predetermined position on the finder. A calculating means calculates the direction in which the user is looking in accordance with outputs from the storage means and the light-receiving means. A detecting means detects a change in the finder optical system. A correcting means corrects an output from the calculating means when a change in the finder optical system is detected by the detecting means after a storage operation in the storge means.

REFERENCES:
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5150143 (1992-09-01), Ohno et al.

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