| 摘要 |
Boundary setting device for binocular visioned observers, including a low powered light source (75, 21, 22, 23...2n) having a predetermined configuration for defining the boundary of a zone of a scene. A sighting tube (70) defines a viewing axis for the light source, including an optical void (76) around the light source. When the low powered light source is viewed through one eye (Eye No. 1) of the observer and a scene containing a section to be encompassed within the boundary is viewed by the other eye (Eye No. 2) of the observer, an optically fused image is presented to the observer with the light source having a predetermined configuration bounding the section to be encompassed in the scene. |
