Image observation apparatus

Details Image observation apparatus Image observation apparatus

1996-02-26

1997-11-18

Perkey, W. B.

Photography

Eye tracking

351210, 250221, G03B 1302, A61B 3114

Patent

active

056897367

ABSTRACT:
The present invention relates to an image observation apparatus which comprises an optical system having a plurality of reflecting surfaces and a positive refracting power to guide light from an image to an observer and a visual axis detection system including a light source for illuminating an anterior ocular segment of the observer to detect a visual axis of the observer, a light-receiving device for receiving an image of the anterior ocular segment which is formed by light reflected by the anterior ocular segment and having passed through a portion of the optical system, and a device for correcting an aberration of the image of the anterior ocular segment which occurs when the image passes through at least a portion of the optical system.

REFERENCES:
patent: 5093567 (1992-03-01), Staveley
patent: 5327191 (1994-07-01), Shindo et al.

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