Alignment design of assembly optical system for laser active detection

The detection and receiving system with field of view（FOV） no less than 15°×6° was introduced, which was composed of two groups of optical systems with 8°×6° FOV in the horizontal direction. In order to ensure the splicing quality and angular positioning accuracy of the FOV within the whole of the detection and receiving system, the installation and adjustment methods as well as procedures of the detection and receiving system were designed in detail, and the accuracy indexes of each installation and adjustment step were allocated. Focusing on the optical axis parallelism, resolution, FOV splicing installation and its key points were described. Through strict control of the accuracy for each installation and adjustment step, the final test results of the detection and receiving system are as follows: the focus f ′ is 52.7 mm, the FOV is 15.2°×6.2°, which meet the requirements of the design indexes.