DEVICE FOR OPTICAL FREE SPACE TRANSMISSION SYSTEMS

摘要

Devices for optical message transmission in free space are optimized for the respective use, in particular for operation in a satellite. The described device is intended for employment in satellites for covering distances of several thousand s of kilometers, wherein a large number of devices is operated simultaneously without essential mutual coverage of the detection range. This is achieved by means of a recessed embodiment of a telescope (2) and the arrangement in the manner of a periscope of only a single, level mirror, which can be rotated around two axes a nd is used for rough alignment. A diffractive optical element optimizes the illuminati on of the aperture, while leaving the surface covered by a central collecting mirror ( 14) free.