| 摘要 |
<p>In an image observation apparatus having an image pickup system for acquiring an outside image via an image pickup optical system and a display system for displaying the outside image acquired by the image pickup system on a display element and for guiding light from the display element via an eyepiece optical system to an eye, an outside optical axis of the image pickup optical system is approximately aligned with an extension line of an eye-side optical axis of the eyepiece optical system, and an entrance pupil of the image pickup optical system is shifted toward the outside from a position equivalent to an entrance pupil of the ocular optical system. An image observation system has a pair of image observation devices for the left and right eyes of an observer. Each of the image observation devices has an image pickup system (10L,10R) for forming an outside image on an image pickup device by an image pickup optical system, and a display system (20L,20R) for guiding light from a display element (22L,22R) displaying the outside image acquired by the image pickup system, to the observing eye (EL,ER) by a display optical system. Each of the image observation devices is arranged so that the outside optical axis of the image pickup optical system is approximately aligned with an extension line of the eye-side optical axis of the display optical system. In the image observation system, the image pickup device of the image pickup system of each image observation device is shifted horizontally by a predetermined distance relative to the optical axis of the image pickup optical system, and the display element is shifted horizontally by a predetermined distance relative to the optical axis of the display optical system. The optical axes of the image pickup optical systems and the optical axes of the display optical systems in the pair of image observation devices for the left and right eyes are parallel to each other. <IMAGE></p> |
