Free-Space Optical Communication Alignment with Coordinated Scan Light

The patent combines multiple alignment operations into a single coordinated process. The management device controls multiple light transmitting systems to perform alignment simultaneously by having one system emit scan light while others adjust their optical axes based on the received scan light directions, thereby achieving parallel processing of alignment tasks and reducing total alignment time while maintaining precision.

The patent implements preliminary scanning action where one light transmitting system first emits scan light to map the spatial directions to the light receiving system. This preliminary scan provides reference information that enables other light transmitting systems to align their optical axes without performing individual scans, thus pre-establishing the alignment framework that accelerates the overall process.

The patent implements a feedback mechanism where the management device receives alignment status information from multiple light transmitting systems and sends control instructions to coordinate their alignment. This centralized feedback loop simplifies the complexity by providing unified management rather than requiring complex distributed coordination between multiple independent alignment systems.

The management device serves multiple functions: it controls the scan light emission, receives alignment information from multiple systems, processes the spatial direction data, and sends coordination instructions. This universal control unit handles all alignment operations for multiple light transmitting systems, reducing overall system complexity by consolidating control functions.