| 摘要 |
A movable aperture, which limits the image field, is provided for filtering out interfering emitters for a device for optical guidance of missiles, which device has two parallel beam paths and radiation detectors allocated to both of them for determining the displacement of the missile from the respective optical axis. The aperture consists of two aperture elements, arranged one behind the other, which can be moved independently of one another about a common rotation axis and each project into both beam paths. In the region of the beam paths, the aperture elements each have two mutually crossing slots with different slot widths. This results in an aperture opening in each case in each beam path, which opening can be moved within the respective image field, the aperture openings having different diameters.
|
