| 摘要 |
Optical apparatus (3) to provide a visual image to an observer including at least one objective (4) located in fixed relation to the observer's head (2) and additionally comprising at least one mirror (9) arranged in relation to the objective (4) so as to form a virtual objective (10) at a position which is closer to one of the observer's eye than the real objective (4). The invention may be utilised in binocular systems wherein two objectives are located in fixed relation to the observer's head and away from the observer's field of view, and additionally comprising a mirror for each objective. |
