Image observation apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAtsushi Okuyama, Shoichi Yamazaki
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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.
Claims18
An image observation apparatus comprising:
- 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 comprising a light source for illuminating an anterior ocular segment of the observer to detect a visual axis of the observer, light-receiving means 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 tilted curved surface constituting said optical system, and correcting means for correcting an aberration of the image of the anterior ocular segment which occurs when the image passes through the tilted curved surface constituting said optical system, said correcting means comprising a tilted curved surface.
Dependencies are inferred from the claim text.